Compiler Type,Target,Idx,Code GCC,nvptx,0,"out ) ; ""ptx_name""" GCC,nvptx,1,") ) ; fprintf ( out , ) ; return 1. The string literal ""commands_end""." GCC,nvptx,2," openmp directive for file requires" GCC,nvptx,3,"; " GCC,nvptx,4,": ( end < src ? NULL : end ) ; ;" GCC,nvptx,5,") ; ""output_options""" GCC,nvptx,6,") paths ) ; found = true ; 0" GCC,nvptx,7,"fi failed to delete the file." GCC,nvptx,8,"stmt ) ""the statement made by the code will be added to the list of statements.""" GCC,nvptx,9,", ) ; ""PTX code successfully generated!""" GCC,nvptx,10,"prev ; Null; Stmt * next ; while ( stmt ) { next = stmt -> next ; stmt -> next = prev ; prev = stmt ; stmt = next ; } return prev ;" GCC,nvptx,11,"ptr ; The last statement is: num++;" GCC,nvptx,12,", out ); ""out ); } }""" GCC,nvptx,13,"(stmts); The statement iterates through a list of statements, writing each statement in the list until the end is reached." GCC,nvptx,14,"( s ); The above code snippet iterates through a linked list of statements and calls the function ""write_stmt"" on each statement object." GCC,nvptx,15,"; } ""The length of the string literal minus the number literal.""" GCC,nvptx,16,") ; ""To append the string literal to the output file and then write out the remaining tokens using the write_token function. Then, if the variable spc is true, append the string literal to the output file as well.""" GCC,nvptx,17,"out ) ; if (""spc"")" GCC,nvptx,18,"argv_obstack , STR ) ; len, len, 0" GCC,nvptx,19,") ""; break;""" GCC,nvptx,20,"NULL) ; ""objoff""" GCC,nvptx,21,", ""cannot remove '%s'\ n"" , file ); STR_LIT ""Could not remove '%s'\n"", file);" GCC,nvptx,22,"*tasklet ) { // Code to clean up any resources used by the offloaded tasklet. }" GCC,nvptx,23,strlen ( curval ) ; values GCC,nvptx,24," : ""PTXGen"" ) ; ""The functions for printing the strings, variables, and dimensions have been completed.""" GCC,nvptx,25,"alloc ) ; } NUM_LIT is the number of bytes from the end of the file (SEEK_END) to seek before allocating memory." GCC,nvptx,26,"buffer ; } buffer = XNEWVEC ( char , alloc ) ; for ( ; ; ) { size_t n = fread ( buffer + base , 1 , alloc - base - 1 , stream ) ; if ( ! n ) break ; base += n ; if ( base + 1 == alloc ) { alloc *= 2 ; buffer = XRESIZEVEC ( char , buffer , alloc ) ; } } buffer [ base ] = '\0' ; * plen = base ; return buffer ;" GCC,nvptx,27,") ; <\s> ptx_version" GCC,nvptx,28,"major , minor ) ; ""cpp_define_formatted ( parse_in , , major , minor ) """ GCC,nvptx,29,"split ; else split = VOIDmode ; rtx x ;\ fprintf(file, ""intmaxfixed="" HOST_WIDE_INT_PRINT_DEC "" intmaxfloat="" HOST_WIDE_INT_PRINT_DEC "" target_flags1=0x%lx"" "" framepointer_regnum=%d arg0=ARG_POINTER_REGNUM"" "" initial_elim_regno_reg_rtl_entry=0 %s\n"", (HOST_WIDE_INT) (INT64_MAX - 1), (HOST_WIDE_INT) (INT64_MAX - 1), crtl->target_flags1, FRAME_POINTER_REGNUM, s" GCC,nvptx,30,"( cfun -> machine -> axis_predicate [ ] ) ) ; 16 ""}\n""" GCC,nvptx,31,"tmp ; } = 0" GCC,nvptx,32,"NVPTX_BUILTIN_FPCLASS : return nvptx_expand_fpclass ( exp , target , mode , ignore , false ) ; case NVPTX_BUILTIN_FPCLASSLL : return nvptx_expand_fpclass ( exp , target , mode, ignore , true ) ; return nvptx_expand_fpclass ( exp , target , mode, ignore , true ) ;" GCC,nvptx,33,"32F 32F" GCC,nvptx,34," ; insert_by value or reference to use for the function's parameter." GCC,nvptx,35,": TREE_VALUE ( DECL_ARGUMENT_TYPES ( args ) ) ; s << 0 ? "", "" : "" "");" GCC,nvptx,36,"mode, rtx var ATTRIBUTE_UNUSED) Declaring an attribute as ""unused"" allows for the compiler to ignore unused variables or parameters, reducing potential warnings or errors during compilation." GCC,nvptx,37," ) <~ the value to be returned is the size value in bytes for the passed argument. ~> type ;" GCC,nvptx,38,"; If the condition is true, then the value ""ADDR_SPACE_CONST"" will be returned, otherwise the value ""ADDR_SPACE_GLOBAL"" will be returned." GCC,nvptx,39," type ==STRUCTR ""TYPE_ALIGNMENT ( TREE_TYPE ( exp ) ) / BITS_PER_UNIT);" GCC,nvptx,40,", ) ; ""decl_chunk_size )""" GCC,nvptx,41,"this_part; BITS_PER_UNIT * chunk_offset" GCC,nvptx,42,"arg , args_so_far ) ; The code snippet creates a call argument list for a function and adds the argument ""arg"" to the list." GCC,nvptx,43,"size , ""(""size"")"" , , section ) ; if ( TREE_UNLIKELY ( IS_ABSTRACT ( { }" GCC,nvptx,44,"fun_expr_list); ""is followed by a NULL statement because there is no return value for the function.""" GCC,nvptx,45,"} The last statement of this code snippet is: cfun -> machine -> start_call = 0;" GCC,nvptx,46,"target_flags , strict , this line } } t;" GCC,nvptx,47,"DECL_NAME ( )); } has_varargs = has_varargs ? 1 : 0 ;" GCC,nvptx,48,"const0_rtx ); => 1 1" GCC,nvptx,49,", ptxfile); This code snippet iterates through each element in the hash table of needed function declarations, records the function declaration using nvptx_record_fndecl function, and writes the contents of the func_decls string to the ptxfile." GCC,nvptx,50,") ; __________ fclose(asm_out_file);" GCC,nvptx,51,"; ""close the output file for the assembly code.""" GCC,nvptx,52,"; This code snippet returns a register in the requested mode if it is named, otherwise it returns a NULL rtx." GCC,nvptx,53,"; }" GCC,nvptx,54,"* BITS_PER_UNIT ; if(size >= NUM_LIT && size < boundary) return size * BITS_PER_UNIT;" GCC,nvptx,55,"__stream ) The nvptx_function_end function ends a ptx file and writes the contents to the specified stream." GCC,nvptx,56,"SImode))); return gen_rtx_UNSPEC(mode, gen_rtvec(, GEN_INT(SImode)));" GCC,nvptx,57,", -1 ) ; unsignedp + 1 ." GCC,nvptx,58,"mode ); mode" GCC,nvptx,59,"p ; This code snippet allocates a new machine function and sets its return register mode to VOIDmode before returning the new allocated machine function." GCC,nvptx,60,"(mode or Invalid);} return gen_rtx_REG (mode or Invalid);" GCC,nvptx,61,"DImode ) ; The code snippet creates a record needed for the function declaration, then checks the address space of the operation. If the address space is generic, it returns the original operation. If the address space is any other type (global, local, shared, const, or parameter), the function generates a code using unspec." GCC,nvptx,62,"; switch ( as ) { NUM_LIT , CONST or PLUS" GCC,nvptx,63,"__SYMFILE_INLINE; DEBUG_ON;" GCC,nvptx,64,"; ""Iterate through the remaining arguments, formatting and outputting them as needed.""" GCC,nvptx,65,") == BLKmode ) { ... } if ( TYPE_MODE ( result_type ) == BLKmode ) { // The function return type is a block type. }" GCC,nvptx,66,", fp ) ) ; } This code snippet prints the PTX type corresponding to the updated mode." GCC,nvptx,67,"reg ); Return whether the mode is not an enumerated register type." GCC,nvptx,68,- return "1"; GCC,nvptx,69,": fputs ( , file ) ; break ; case UNGE : fputs ( , file ) ; break ; default : gcc_unreachable ( ) ; } fputs ( , file ) ; } ""break;""" GCC,nvptx,70,") { .......Display address of the operand fprintf(file, ""Address of the operand: %p"", addr);" GCC,nvptx,71,"; The function arg_promotion() is called to return the mode." GCC,nvptx,72,"; case DFmode : return ; if ( DFmode ) return ""It must promote to a double precision FP value"";" GCC,nvptx,73,") ) { # This block checks if the provided tree declaration is a function declaration and checks whether it is an external declaration. If it is neither, then the function returns false. return false; }" GCC,nvptx,74,"name ) ; } ""If the slot for the given declaration is empty, it is filled with the declaration and the function name is retrieved from the declaration before being replaced with a modified version using the nvptx_name_replacement function.""" GCC,nvptx,75,) ) { //record function declaration < GCC,nvptx,76,"value, hash, INSERT); __ if (slot == nullptr) return;" GCC,nvptx,77,"known_code = ( enum rtx_code ) ; if ( GET_CODE ( new_reg ) == REG ) ( op , new_reg , known_code ) ; else gcc_assert ( 0 ) ; } else if ( Since the code is attempting to allocate registers and replace them with SUBREGS, the last statement of this code snippet should be ""reg_replace.SUBREG (op, new_reg)"" to replace the original register with the newly allocated register." GCC,nvptx,78,"( i ) == ) remove_reg_stat ( i ); 3" GCC,nvptx,79,"true ; The ""return true ;"" statement at the end of the function is only valid if the return value does not fit in a single register, indicating that the return value must be passed through memory instead." GCC,nvptx,80,"; default : return ""Invalid address space type."";" GCC,nvptx,81,"; ""The code above checks if the mode is equal to TImode and returns true if it is, otherwise it returns false.""" GCC,nvptx,82,") ;i f ( ! DECL_STATIC_CHAIN ( fndecl ) ) statement ""This function has no static chain, so return NULL; otherwise, return the register storing the value of the static chain for this function.""" GCC,nvptx,83,"obj = truncate((WORD)(obj)); ""Then the object is truncated to fit the TImode using the WORD function.""" GCC,nvptx,84," ) ; s << << ( i - ) << ; } ""<<<(function_name, \""%s\""), a %zu-bit kernel function>>>""" GCC,nvptx,85,") The output will provide the address generated using the init_part and declared chunk mode in integer mode." Compiler Type,Target,Idx,Code GCC,nvptx,87,"|| mode == DFmode ) 4" GCC,nvptx,88," , attrs ) return false;" GCC,nvptx,89,"; } ""The function ""name"" has been declared and is being written to the stream ""s"". If the function is public, an additional string will be written to the stream.""" GCC,nvptx,90,"<< < ""public function declaration and comment""" GCC,nvptx,91,"; s << "" if ( callprototype ) s << nvptx_ptx_type_from_mode( mode, true) ; else s << nvptx_ptx_type_from_mode (mode , false); s << ; } "" If ( callprototype ) s << nvptx_ptx_type_from_mode ( mode , true ) ; else s << nvptx_ptx_type_from_mode ( mode , false ) ; s << ;" GCC,nvptx,92,"mode) << * 8 << > # 8 * 8 is equal to 64 bits." GCC,nvptx,93,"bbf , ba_flags ); The last statement of this code snippet sets the basic block as a strongly connected component and updates the block flags accordingly." GCC,nvptx,94,", bb , branch_correct_metadata ) << majority (bb) >> , the majority of element in this block is branch_correct_metadata" GCC,nvptx,95,", init_frag . offset ) ; ""else {\\ fprintf ( file , , align / BITS_PER_UNIT, elt_size * BITS_PER_UNIT, HOST_WIDE_INT_PRINT_DEC, size ) ;\\ }""" GCC,nvptx,96,"; } ""The function assembles the declaration begin of a PTX assembly file, including the specified section, alignment, element size, and name.""" GCC,nvptx,97,"min=0) ;""entered the function and wrote the declaration's variable marker, size, and assembly declaration beginning""" GCC,nvptx,98,"decl , tree_size ) ; (STR_LIT) ""Assembly code for the given""" GCC,nvptx,99,"< maxregs ; ++i ) { if ( !TEST_HARD_REG_BIT ( reg_class_contents [( virtual_regno_mode [ i ]) ], ) && reg_renumber [ i ] < FIRST_PSEUDO_REGISTER ) continue ; init_frame ( file , reg_names [ i ] , , ) ; }" GCC,nvptx,100,"op ) ) ; This code snippet checks if the value of ""is_call"" is true or false, and then uses it to generate either a NVPTX fork instruction or a general integer, based on the value of ""op""." GCC,nvptx,101,"; // Emit an instruction for joining and then join the specified operand." GCC,nvptx,102,"NVPTX_BUILTIN_SHUFFLEI : case NVPTX_BUILTIN_SHUFFLELI : return nvptx_expand_shuffle_imm (exp, target, mode, ignore, ); } DECL_FUNCTION_CODE (fndecl)" GCC,nvptx,103,", ..... worker_red_sym , worker_red_align , worker_red_size ) ;" GCC,nvptx,104,".push_back ( block // The default case statement is unreachable." GCC,nvptx,105,") { return newparmreg_setup (); } return new cumparmreg_setup # I disagree. cumparmreg_setup() is not a valid function. It should be newasmreg_setup(). #I'd say ""return newasmreg_setup();}""." GCC,nvptx,106,"tree *stan (decl)) { cum_v->args[cum_v->size++] = decl; }" GCC,nvptx,107,"ceil_l ceil_l is the number of blocks of memory required by the given mode." GCC,nvptx,108,"type ) , ARG_UNUSED ( func ) ); return mode; }" GCC,nvptx,109,") ; res = gen_rtx (UNSPEC, VOIDmode, dst, src0, src1); } " GCC,nvptx,110,"src0 , src1 ) ; break; } } The function nvptx_gen_pack takes in three arguments: dst (destination), src0 (source 0), and src1 (source 1). It then checks the mode of the destination operand and based on that, uses the gen_packsidi2 function to perform a packing operation and stores the result in the res variable. Finally, the result is returned by the function." GCC,nvptx,111,"; The default case is used for any mode that is not explicitly specified, and ends the code snippet with an unreachable statement to signal an error." GCC,nvptx,112,"rtx operands[ ]) { ] = {operands[0], VOIDmode, TYPE_MODE(TREE_TYPE(operands[0]))}; return expand_normal(NAME, operands, 1, TARGET_EXPR, operands[0]); } In this code snippet, we see the definition of a static function called ""nvptx_gen_vcast"", which takes in an array of rtx objects as its parameters. This function returns the result of expanding a specific target expression, using the provided operands as inputs. The target expression in question is defined to be the name of the function, and the operands are passed in as arguments to" GCC,nvptx,113,") ; gcc_assert ( validate_change ( & recog_data , data ) ) ; if ( ! ) { end_sequence ( ) ; break ; 1` this_treg ;`" GCC,nvptx,114,"(rtx type_node) noexcept { return rtx(); }" GCC,nvptx,115,", type , offset , size , align ) ; 1)fndecl" GCC,nvptx,116,"""Invalid function code in goacc_reduction"" ); This switch statement checks the function code and calls the appropriate function to handle goacc_reduction initialization, finalization, or teardown, and throws an error if an invalid function code is encountered." GCC,nvptx,117,"NULL ; } 3" GCC,nvptx,118,"init_stmt ) ; The last statement of this code snippet is "" }""." GCC,nvptx,119,") ; the value of the variable ""var"" is set to a numerical literal." GCC,nvptx,120," true ; false" GCC,nvptx,121,", REGNO ( cfun -> machine -> ) ){ // This statement is used to generate a register rtx for the return value based on the current mode and the return register number. }" GCC,nvptx,122,"= NULL ; " GCC,nvptx,123,"latch_end , loc ) ; The last statement of this code snippet creates a phi node, which is used to merge the values of the variables from different paths in the control flow graph." GCC,nvptx,124,") { fprintf ( asm_out_file , ) ; }" GCC,nvptx,125, False GCC,nvptx,126,", par -> forked_insn ) ; inner_mask |=. par -> inner_mask ;" GCC,nvptx,127,"nvptx_process_pars par -> next -> inner_mask;" GCC,nvptx,128,") { GET_CODE ( insn )" GCC,nvptx,129,", "" inamous pointers = %d"", ix ) ; ""Therefore, it can be concluded that there are a total of %d inamous pointers being used.""" GCC,nvptx,130," ) <: "" );" GCC,nvptx,131, ; emit_insn_ GCC,nvptx,132,"_lock_invalidate . ) will propagate the instruction to the block and update the lock and invalidate properties for the read-write operation." GCC,nvptx,133,"dest , data . offset" GCC,nvptx,134,") ; ""to ensure synchronization among threads after the specified point.""" GCC,nvptx,135,") ) ; } BITS_PER_UNIT" GCC,nvptx,136,"int flags ) ...to the file. ```. fprintf(file, "" Sym : %s , Flags : %d \n"", sym, flags);" Compiler Type,Target,Idx,Code GCC,nvptx,137,") : NULL ) NULL" GCC,nvptx,138,"split ; reg_save_line_1 ( file , i , mode ) ; } NUM_LIT (Defined)" GCC,nvptx,139," ] = __p . > ""Add a null terminator to the end of the string at LABEL.""" GCC,nvptx,140,"'\0'; The provided code snippet is missing some key information, so it is not possible to accurately complete the last statement. However, based on the given information, a possible completion could be: (SOME_CODE_HERE); \ __p += snprintf(__p, sizeof(LABEL) - (__p - LABEL) - 1, ""%s"", STRING); \ }" GCC,nvptx,141,": { rtx tmp = gen_reg_rtx ( SImode ) ; start_sequence ( ) ; emit_insn ( gen_rtx_AND ( tmp , src , GEN_INT ( 255 ) ) ); res = get_insns(); end_sequence(); } break; { rtx dst = gen_reg_rtx ( SImode ) ; emit_insn ( nvptx_gen_shuffle ( dst , tmp , idx , kind ) ) ; res = get_insns ( ) ; } break ;" GCC,nvptx,142,"- ; GOMP_DIM_VECTOR" GCC,nvptx,143,", PTX" GCC,nvptx,144,"Gay diagnose_openacc_conflict ( TARGET_AMDGCN, ""Gay"" );" GCC,nvptx,145," ]; The last statement should be ""do something with the register .""" GCC,nvptx,146,", mask , & bb_insn_map ) ; GOMP_DIM_VECTOR, " GCC,nvptx,147,") tree that contains information about the dimensions of a parallel region" GCC,nvptx,148,"nvptx_cuda_sm ? 32 : 16; } ""The function nvptx_simt_vf returns either 32 or 16, depending on the value of the conditional expression nvptx_cuda_sm.""" GCC,nvptx,149," )print_simt_regs(file);" GCC,nvptx,150,") ; par = 7 NUM_LIT=0 (NUM_LIT refers to the index of a vector expression, so the numbers would depend on the specific code being worked on)" GCC,nvptx,151,") ) ) ) ; > (BITS_PER_UNIT) ;" GCC,nvptx,152,"; 4" GCC,nvptx,153,"0 && NAME ( DECL_NAME ( FUNCTION_DECL ( current_proc ) ) ) == ""mkdir"" ) { GSI_FOR_STMT ( gsi ) to iterate over PHI args }" GCC,nvptx,154,) . GCC,nvptx,155,") ; } ""false""" GCC,nvptx,156,"par -> vector_loop , par -> fork_insn ) ;" GCC,nvptx,157,", fs , data ) ; if ( fini" GCC,nvptx,158,"; } An integer literal representing the size of the pointer's mode." GCC,nvptx,159,"ix, 0, mask); GOMP_DIM_STACK" GCC,nvptx,160,"DECL_ATTRIBUTE_OACC_MASK; 0" GCC,nvptx,161,") potential conflicts between instructions will be analyzed and the appropriate propagation rules will be applied based on the value of NUM_LIT." GCC,nvptx,162,"empty ; The uninitialized variable ""empty"" must be assigned a value to complete the statement. The variable should be assigned the value of "" != 0"" to reflect whether or not the data offset is equal to zero." GCC,nvptx,163,"INSN_P (insn)) { is true, then the current instruction is processed." GCC,nvptx,164,"; 1 NULL;" GCC,nvptx,165,", first_ptx_version_supporting_sm ( ( enum ptx_isa ) ptx_isa_option ) ) return res; }" GCC,nvptx,166,"< s> res = MAX ( res , PTX_VERSION_6_0 ) ; gcc_assert ( first <= res ) ; return res < s> res = MAX ( res , PTX_VERSION_7_0 ) ; gcc_assert ( first <= res ) ; return res" GCC,nvptx,167,"""missing size"" ); The code snippet above checks if the flag for OpenACC processing is turned on and if there is a value specified for an option. If this is the case, then the code will throw an error indicating that the size parameter is missing." GCC,nvptx,168,"compiler_tree &tree ) ""and provides suggestions for resolving the conflict.""" GCC,nvptx,169,") ){> if a==b : return true } else{ return false }" GCC,nvptx,170,"; The default case is unreachable because all possible values of ""sm"" have been accounted for." GCC,nvptx,171,"( TYPE_DOMAIN ( last_field_type ) ) ) ""The function will return true if the last field of the tree type is an array type and it has a valid domain and maximum value.""" GCC,nvptx,172,") ) ; This code snippet checks if the last field type of a tree is an array type and returns false if it is not. It then checks if the type domain of the last field type exists and if its maximum value is not equal to the type domain, and returns true if either of these conditions is not met." GCC,nvptx,173,"= block-> flags & ~CLEANUP_BLOCK; } }" GCC,nvptx,174,") ; set_unique_reg_note ( inits , REG_DEAD 0 0" GCC,nvptx,176,"( ""GOES HERE"" ) ; sep + ""GOES HERE""" GCC,nvptx,177," ) ) ; } - 1" GCC,nvptx,178,"; The statement decrements the value at the index ""color"" in the array ""color_counts"" by 1." GCC,nvptx,179,"-> n_in_use ++ ] ; This code snippet is used to allocate a register for a new instruction." GCC,nvptx,180,"_node* node ){ return static_cast(node); return a static_cast hashval_t of the input node's value, which will be used for hashing purposes." GCC,nvptx,181,"oacc_fn_attrib_contiguous ( attrs ); The code snippet is checking if a statement is a GIMPLE CALL, then gets the callee information, and finally checks for the OACC function attributes. The last statement checks if the function is a sequential routine or not by using the OACC function attribute ""contiguous."" If the attribute is not present, the function will return false." GCC,nvptx,182,"] = max_workers; The code sets the maximum number of workers for the machine based on the specified vector length." GCC,nvptx,183,"( oa . num_workers ) max number of workers that can be used for offload processing." GCC,nvptx,184,"] , align ) ; POINTER_SIZE, reg_names[regno], size) : reg_names[regno], align) ;" GCC,nvptx,185,", ) ; fprintf ( file , ""%d(%s),%s"", bits, reg_names[crtl->fs.rri.stack_pointer], reg_names[FRAME_POINTER_REGNUM] ) ;" GCC,nvptx,186,"( mode ); else return VOIDmode; } If the input mode is a complex mode, then the inner mode is returned. Otherwise, the value returned is VOIDmode." GCC,nvptx,187,"four_sigs_to_... deCOMPLEX_MODE_P ( mode ) return GET_MODE_INNER ( mode ) ; if ( mode == TImode ) return four_sigs_to_net (); // Note: This code snippet is part of a larger context and may not compile or function as desired on its own. It is recommended to provide a complete code snippet for accurate assistance." GCC,nvptx,188,"state [ GOMP_DIM_VECTOR ] -= 1 ; PTX_WARP_SIZE" GCC,nvptx,189,"= PTX_WARP_SIZE PTX_WARP_SIZE" GCC,nvptx,190,", The last statement of this code snippet is: ""nvptx_assemble_decl_end ( file , type , , obj_size ) ;""" GCC,nvptx,191," ; return ; } ""error_at ( DECL_SOURCE_LOCATION ( name ) , ""duplicate assembly clobber"" ) ; TREE_ASM_WRITTEN ( name ) = 0 ; return ;""" GCC,nvptx,192," ) < When we assign the value 0 to the residue is 0. 0." GCC,nvptx,193,"; The last statement in this code snippet assigns a value to the ""val"" variable in the ""init_frag"" structure." GCC,nvptx,194,tstring . c_str ( ) : init_frag . non_empty_lines . c_str ( ) ) ; ; init_frag.val" GCC,nvptx,196,"decl_size_align ( decl ) , decl , decl_debug_loc ( decl ) ) ; 0);" GCC,nvptx,197,") ""The code snippet updates the value and size of the init_frag field, potentially shifting the value and increasing the offset by the MIN of the current offset and size.""" GCC,nvptx,198,"part * BITS_PER_UNIT ) ; unsigned HOST_WIDE_INT mask = ( HOST_WIDE_INT_1U << ( part * BITS_PER_UNIT ) ) - ; val &= ; size" GCC,nvptx,199,"exp __rtx (* arg ) ; Then the condition for the ""if"" statement will be true if REG_P evaluates to true and arg is not equal to the program counter register (pc_rtx)." GCC,nvptx,200,GET_COD GCC,nvptx,201,"frommode, machine_mode Tomode) ""returns whether a machine mode change from frommode to Tomode can be done"" " GCC,nvptx,202,") ); Obtained an nvptx_barsync object that synchronizes the given number of threads to the specified lock." GCC,nvptx,203,"_VAL ( bar_num ) ) ; This code snippet returns the value of the nvptx_barsync function with parameters ""lock"" and ""bar_num"" passed in." GCC,nvptx,204,"decl ) ) ; \noindent Its second argument is a representation of $true$" GCC,nvptx,205,") ); > ""%*stype %s <%d>"" type, """", obj_size" GCC,nvptx,206," ] ; the number of predecessors of the block is equal to ." GCC,nvptx,207,"+ ) ; The code block will output the index of each basic block in the loop structure as well as recursively output the loop structure of the next and inner loops." GCC,nvptx,208,")) This code snippet generates two assembly instructions for NVIDIA PTX architecture that set up a fork operation for GOMP tasks." GCC,nvptx,209,"op ) ) ; }. The code snippet checks if the mask is true, then sets the rtx op value to be the integer version of the mask ORed with the number of maximum dimensions for GOMP (OpenMP library). The last statement then emits an instruction using the gen_nvptx_fork function passing in the op value as the argument." GCC,nvptx,210,"mask == GOMP_DIM_MASK ( GOMP_DIM_WORKER ) ) { ""Do work in parallel using OpenMP worker threads.""" GCC,nvptx,211,"doing_call ); cfun -> machine -> doing_call ; ` cfun -> machine -> doing_call remains unchanged after being freed." GCC,nvptx,212,": return nvptx_expand_cmp_swap ( exp , target , mode , ignore ) ; NUM_LIT" GCC,nvptx,213,"true ) ; 4" GCC,nvptx,214,", src);" GCC,nvptx,215,"cmp ) ) ; 0, 1 ;" GCC,nvptx,216,") ; ""The result of the comparison is stored in the register 'pred' using the instruction 'gen_rtx_SET', and then checked with the constant 0 using 'gen_rtx_NE', which returns the final result.""" GCC,nvptx,217,", dim ), &first ) ; This code snippet calls the function ""nvptx_emit_forking"" and passes in the value of GOMP_DIM_MASK (mode, dim) and a pointer to the variable ""first""." GCC,nvptx,218,"mode , EXPAND_NORMAL ) ; rtx new_rtx = gen_rtx_SSU_SSHUFFLE ( mode , idx , src , target ) ; return new_rtx ; } 2" GCC,nvptx,219,"op ) ) ; ""to generate a shuffle pattern using the target, source, index, and operation values.""" GCC,nvptx,220,") ; asm_out_file is the output file stream." GCC,nvptx,221," ) ; } } if (dump_file) { unsigned count; const char * comma = "",""; fprintf(dump_file, ""Total colors: %d\n"", color_counts.length()); for (ix = 0; color_counts.iterate(ix, &count); ix++) { fprintf(dump_file, ""%s%d:%d\n"", comma, ix, count); comma = "",""; for (unsigned jx = 0; blocks.iterate(jx, &block); jx++) if (BB_GET_SESE(block)->color == ix) { block->flags |= BB_VIS" GCC,nvptx,222,"arg . first_p ( ) ) { There is not enough information to determine the last statement." GCC,nvptx,223,"= cum->count + 1; The given code snippet initializes a cumulative arguments pointer variable, assigns it a count value, and increments the count value by one." GCC,nvptx,224,"(); cum->g_var = cum_v.g_var; cum->g_param_offset_begin = cum_v.g_param_offset_end; } The code snippet is assigning values from the input argument to the corresponding fields in the cumulative arguments struct." GCC,nvptx,225,"; ""to print a string literal onto the specified file.""" GCC,nvptx,226,"), cum->popcount) GEN_INT ( cum->increment))" GCC,nvptx,227,"), GEN_INT ( count ), 0 ) ); : 2" GCC,nvptx,228,"; } The function will always return false." GCC,nvptx,229,": res = gen_binary ( dst, src0, src1, CODE_FOR_daddu ); // The destination is double integer mode, so perform addition operation between the source 0 and source 1 and store the result in res. break ; } return res ; } The function then returns the result, res, which contains the value of the addition operation on src0 and src1 in double integer mode." GCC,nvptx,230,"res ; } This code snippet takes in three parameters - dst0, dst1 and src - and returns the result after performing an unpack operation based on the mode of src." GCC,nvptx,231,", nfsr , 0 , GEN_SHUFFLE_NORMAL , 0 , 0 , 0 ); This code snippet generates a PTX instruction to shuffle the specified register using the specified constants and shuffle mode settings." GCC,nvptx,232,"2 , reg3 , count ); This statement calls the ""nvptx_gen_shuffle"" function with the arguments ""reg"", ""reg2"", ""reg3"", and ""count"" and returns the result of the function." GCC,nvptx,233,"; } This function returns the arg_pointer_rtx if the TARGET_SOFT_STACK is true and stack_realign_drap is true. Otherwise, it returns the NULL_RTX." GCC,nvptx,234,") ; offset" GCC,nvptx,235," IR decisions; " GCC,nvptx,236,"(mode); The statement returns the argument 'pred' if its value is true, otherwise it assigns the value of 'gen_reg_rtx (mode)' to 'pred' and then returns 'pred'." GCC,nvptx,237,"-> \\ pred_legacy ""comprises a pair of function pointers pointing to a predecessor and successor in the desired order.""" GCC,nvptx,238,"; " GCC,nvptx,239,"; } """" ""goacc_private""" GCC,nvptx,240,"; = WORD_SIZE" GCC,nvptx,241," GOMP_DIM_USER return true;" GCC,nvptx,242,") }" GCC,nvptx,243,"& seq , ) ; } }" GCC,nvptx,244,"); The last statement is ""pop_gimplify_context ( NULL );"". This statement ends the if-else block and completes the gimple function for simplification." GCC,nvptx,245,") ; gimple_call_set_lhs ( cond_stmt , init ) [ ];" GCC,nvptx,246,") ; 1;" GCC,nvptx,247,"call , ) ; 1" GCC,nvptx,248,"false ; 4" GCC,nvptx,249,"name ) ; * no_add_attrs = true ; } ""* no_add_attrs"" needs to be reset to ""true""." GCC,nvptx,250,";} return 1;" Compiler Type,Target,Idx,Code GCC,nvptx,251,", ) ; ""}""" GCC,nvptx,252,"NULL_TREE ) ) ; DEF ( MEMBAR_SYS , , ( VOID , VOID , NULL_TREE ) ) ; ""DEF ( SYNC , , ( VOID , VOID , NULL_TREE ) ) ;""" GCC,nvptx,253,", UINT , UINT , NULL_TREE ) ) ; DEF (VECTOR_SIZE, , (PTRVOID, ST, UINT, UINT, UINT, NULL_TREE) );" GCC,nvptx,254,"; fprintf ( file , ""}"" ) ;" GCC,nvptx,255,": case CONST_INT : return true ; default : return false ; } ""NUM_LIT ) )""" GCC,nvptx,256,") ; } ""This function returns a value based on the given mode and a flag checking whether the program is currently in a call.""" GCC,nvptx,257,result of the function is determined based on the type of the function and whether it is a floating point type. GCC,nvptx,258,"UNKNOWN_TREE; This code snippet checks if the ""type"" variable is not null, and returns a comparison of the ""type"" variable to ""UNKNOWN_TREE"". If the two are equal, then the function will return true." GCC,nvptx,259,"mode ) ; }" GCC,nvptx,260,") }" GCC,nvptx,261,"update_bb ; lock_loop -> num_nodes = 3 ; < NUM_LIT = ""UNARY_EXPR"" lock_expr = build_call_expr_loc ( loc , swap_fn , UNARY_EXPR , lock_expr , uns_unlocked , uns_locked ) ; gimplify_assign ( lock_var , lock_expr , & lock_seq ) ; gcond * cond = gimple_build_cond ( EQ_EXPR , lock_var , uns_unlocked , NULL_TREE , NULL_TREE ) ; gimple_seq_add_stmt ( & lock_seq , cond ) ; gimple * lock_end = gimple_seq_last ( lock_seq ) ; gsi_insert_seq_before ( gsi ," GCC,nvptx,262,"; ""TREE_READONLY (acc_out) = 1;""" GCC,nvptx,263,") ; At this point, the code is inserting the ""latch_seq"" before the ""gsi"" with the same statement." GCC,nvptx,264,"cfun -> machine, cfun -> machine -> axis_dim_p); This conditional statement checks if the axis dimension initialization flag is not set, and if so, calls the init_axis_dim function using the machine and axis dimension pointers in the cfun struct." GCC,nvptx,265,"return { 0; } // Return the maximum number of workers for the current machine." GCC,nvptx,266,"0 ] ; // The code snippet returns the length of the axis dimension of the machine for the current function." GCC,nvptx,267,"iter ) ) 1 -- Do something." GCC,nvptx,268,"( ) ; } ""Gcc_assert(GET_CODE(x) == MEM); const rtx addr = XEXP(x, ); subrtx_iterator:: array_type array; FOR_EACH_SUBRTX(iter, array, addr, ALL) if (SYMBOL_REF_P(*iter)) return SYMBOL_DATA_AREA(*iter); return DATA_AREA_GENERIC();""" GCC,nvptx,269,"area == Martix mulitiplication DATA_AREA_CONST ; } DATA_AREA_CONST ;" GCC,nvptx,270,"){ return true; } This function returns a boolean value indicating whether two machine modes are ""tieable""." GCC,nvptx,271,"; ""If none of the above conditions are met, the function will return the original string in the 'name' variable.""" GCC,nvptx,272," ) return ; if ( strcmp ( name , ) == ) return ;" GCC,nvptx,273,"== mask This code snippet is used to check if the current thread is a worker or a vector." GCC,nvptx,274,"; The code snippet is checking if the current thread is a worker and if the current device supports large vector lengths. Therefore, the last statement would be: ""return worker && large_vector;""" GCC,nvptx,275,"size ( ) ; if ( len ) { par -> cond_teams_region = new ( paraliases_shared) class gcond_teams_region; // Create a new gcond_teams_region object using the paraliases_shared constructor." GCC,nvptx,276,"RTX_FMT_COMMON_LIT that the join instruction has been matched to its correct forked and joined blocks. ""Matching of the join instruction with its correct forked and joined blocks has been successfully verified.""" GCC,nvptx,277,"= ; if ( TARGET_GOMP ) target_flags = ;" GCC,nvptx,278,"size_t ) { fprintf(___, ""ASCII output format""); } stdout" GCC,nvptx,279,"len ) { fputc(str, len); /* This function outputs the ASCII representation of the first 'len' bytes of 'str' onto the specified file. */ }" GCC,nvptx,280,"0 ; This code snippet outputs a barrier instruction to the specified assembly template using the given operands and returns 0." GCC,nvptx,281,") ; } ""// End of code snippet""" Compiler Type,Target,Idx,Code GCC,nvptx,282,"; ""success""" GCC,nvptx,283,"] , src_regno ); POINTER_SIZE, reg_names[SOFTSTACK_SLOT_REGNUM], src_regno);" GCC,nvptx,284,"The code snippet should end with: return SUCCESS;" GCC,nvptx,285,the output of the function. GCC,nvptx,286,"accumulative_args ); } return pass_in_memory(arg.mode, accumulative_args);" GCC,nvptx,287,"uint32_t *) {} The function allows for passing arguments by reference using a cumulative_args_t variable and a const uint32_t pointer." GCC,nvptx,288,"pat, 0, 0 ); This code snippet checks if the instruction 'insn' is a jump or an ordinary instruction, and if so, it will return null. If it is not a jump or an ordinary instruction, it updates 'pat' to be the expression of the first element of the parallel pattern." GCC,nvptx,289,"VEEE ) ; return default_preferred_simd_mode (VEEE);" GCC,nvptx,290,"STRICT_LOW_PART : case STRICT_HIGH_PART : fputs ( , file ) ; break ; default: gcc_unreachable ( ) ; } fputs( """", file );" GCC,nvptx,291,"cfun -> machine ) ; threads = nvptx_mach_vector_length(cfun -> machine);" GCC,nvptx,292,"funtype )); } to the higher machine mode of the given type for use in PTX code generation." GCC,nvptx,293,", idx ), true ) ; fs 2" GCC,nvptx,294,: return >" GCC,nvptx,296,"name); writes out the function prototype with the given name." GCC,nvptx,297,", REMOVE ) ; } ''INSERT''" GCC,nvptx,298,"{ // If *slot is NULL, the function declaration 'decl' does not exist in the hash table 'needed_fndecls_htab' and needs to be inserted." GCC,nvptx,299,") ; } The above code snippet is used to record the function declarations that are needed for the production of PTX code." GCC,nvptx,300,"; ""This statement is printing the value of the given size, obtained from TREE_INT_CST_LOW, to the asm_out_file.""" GCC,nvptx,301,"var , op ) ; The code snippet checks the size of the type of a variable, and depending on the size, uses either the nvptx_lockless_update() or nvptx_lockfull_update() function to update the value of the variable." GCC,nvptx,302,") ; oa.num_workers );" GCC,nvptx,303,"{ oa.subreg_mask; }" GCC,nvptx,304,"insn ) ; } }--> the function extract_insn is used to extract an instruction from the code sequence that is being processed by the for loop." GCC,nvptx,305,"[ i ] == c ) break ; 0" GCC,nvptx,306,") return pass_in_memory(TYPE_MODE(type), type, true);" GCC,nvptx,307,"type ) > is used to determine if the return value of a function should be passed through memory instead of a register in the Nvidia PTX target." GCC,nvptx,308," ) ) + ( ix - 0) * sizeof ( edge ) ; ""ix != 0""" GCC,nvptx,309,-> + offset ) ; if ( GCC,nvptx,310,"; num_children ++ ; : The above code snippet is used to modify the high and low values of a Strongly Connected Component (SCC) graph." GCC,nvptx,311," ; vector_red_partition = 0 ; oacc_bcast_partition = 0 ;" GCC,nvptx,312,", insn ) ; data.offset" GCC,nvptx,313,", NULL ) ; ""The function extract_insn is called on tail in the previous line of code.""" GCC,nvptx,314,"n_preds == 1 ) ; } The statement checks if the number of predecessors in the join block is equal to one." GCC,nvptx,315,"-> first ; seen_insn = false ; PREV_INSN ( elt ->first ) . If the basic block has not already been visited, it is remapped and split at the previous instruction in the block." GCC,nvptx,316,"fntype == LEAF <\s> != NULL_TREE return cum -> fntype == NULL_TREE || fntype == LEAF != NULL_TREE" GCC,nvptx,317,"true; } ""That function is not implemented yet.""" GCC,nvptx,318,"true ; } close curly braces after return true The complete statement is: } close curly braces after return true;" GCC,nvptx,319,"true ; This code snippet checks if the instruction is a register set, checks if the register is not used, and inserts a new instruction to perform a bitwise shuffle on the given register at the specified index. If successful, it returns true." GCC,nvptx,320,"; } This function always returns false." GCC,nvptx,321,"){ return false } }" GCC,nvptx,322,") Machine mode mode int)od supported = (machine_mode mode);" GCC,nvptx,323,"== 0 ; 0" GCC,nvptx,324,"0 ; } 0" GCC,nvptx,325,"asm_out_file , ) ; ... } else { return; }" GCC,nvptx,326,This will return true if the mode class is larger than the size of a word. GCC,nvptx,327,"{ GOMP_DIM_MAX" GCC,nvptx,328,"mode; } mode" GCC,nvptx,329,"); } The function promote_return promotes the return value of a function of type machine_mode to the next larger type." GCC,nvptx,330,: return major_p ? : This code snippet returns the section for the symbol specified by the given declaration." GCC,nvptx,333," } ""New York"", ""California"", ""Texas"", ""Florida""" GCC,nvptx,334,"( ) - 1 ); } The last statement of this code snippet is to call the function ""get_color()"", passing in the ""color_counts"" vector and the length of the ""brackets"" string minus one as arguments." GCC,nvptx,335,"bsp, This function sets the color of the nodes in the binary search tree represented by the vector bsp." GCC,nvptx,336,"sm ) { case sm_61: return ""6.1"" ; default: return ""Unknown""; } }" GCC,nvptx,337," for determining whether the input variable ""mode"" has been successfully split using the function split mode." GCC,nvptx,338,"&& ! seen_worker_label ) { gcc_assert ( ! vector_neutered && ! worker_neutered ) ; }" GCC,nvptx,339,"! seen_vector_label ) ) ; } ""If the label of a vector or worker is seen, the corresponding neutered value is set to false and if the label of a jump is seen, the corresponding jump is set to true.""" GCC,nvptx,340,"! seen_worker_label ) ; if ( seen_vector_label == false && ...seen_worker_label == false ) ; if the insn is the nvptx_barsync code and neither the vector_label nor the worker_label have been seen, then the condition is true." GCC,nvptx,341,"reg, pm, count, vector); } NULL;" GCC,nvptx,342," ) { /*if the propagate mask is NOT read_write, return NULL*/ return NULL; }" GCC,nvptx,343,"{ unrecognizable insn." GCC,nvptx,344,"true ; continue ; } The last statement is ""continue ;""." GCC,nvptx,345,"; case NUM_LIT: //If none of the cases match, the function gcc_unreachable() is called indicating that this part of the code should never be reached and an error might have occurred during execution." GCC,nvptx,346,"{ " GCC,nvptx,347,", bb ) if ( e INSN. "", dump_flags & TDF_DETAILS ? ""%d:%d->%d (insn#%d)"" : """")" GCC,nvptx,348,"( ) ; Before we can save the register, we need to check options that are not illegal." GCC,nvptx,349,"true ; } ""If the condition is not met, the type will be split into a complex type and the mode will be set accordingly. The prototyped variable will also be set to true.""" GCC,nvptx,350,"name ) ; <\s> If the variable ""is_defn"" is true, then the function ""write_fn_proto_1"" will be called with the parameters ""s"", false, and ""name""." GCC,nvptx,351,"'.' ) name[length(name)-1] == '.'" GCC,nvptx,352," , argno , void_type_node , false ) ; - NUM_LIT ``` args ? NUM_LIT" GCC,nvptx,353,") { i < arg_end ; i++ ) { // End of the for loop for iterating through arguments" GCC,nvptx,354,"( result ) ) ; ""That name was replaced.""" GCC,nvptx,355,"}>"" This code snippet calculates the starting address of a thread's stack and stores it in a shared variable." GCC,nvptx,356,"s��fx = ""._Z""; ptx_type = nvptx_ptx_type_from_mode(mode, false); pfx = ; sfx = ; if (for_proto) pfx = , sfx = ""._Z"";" GCC,nvptx,357,parallel :: parallel GCC,riscv,0,";<\s> ""Invalid mode.""" GCC,riscv,1,"ss ""Invalid type.""" GCC,riscv,2,") 8 "" (num + 1)) << lmul_log2);" GCC,riscv,3,") ; N/A (num_lit)" GCC,riscv,4,"elmul_log2 , fe_p , rm ) ; ""If the condition is met and float_p is true, the function returns a floattype value with the given parameters, including eew, elmul_log2, fe_p, and rm.""" GCC,riscv,5,") ...> = << str(lmul_log2)" GCC,riscv,6,") , build ( fsflags , build_call_expr ( fsflags , ) ) , hold TARGET_EXPR, RISCV_ATYPE_USI, old_flags, build_call_expr (frflags, hold), build_call_expr (fsflags, hold) );" GCC,riscv,7,"aren_true_node ( integer_type_node ) )}; RISCV_BUILTIN_VECTOR: return vector_builtin_decls[subcode](subcode, initialize_paren_true_node(integer_type_node)); This code snippet shows a switch statement that checks for different types of built-in declarations in a RISC-V system. The missing statement at the end should return the corresponding vector built-in declaration from the vector_builtin_decls array with the given subcode as a parameter." GCC,riscv,8,"RISCV_BUILTIN_SECONDARY : return riscv_expand_builtin_secondary ( d -> icode , fndecl , fcode ,);" GCC,riscv,9,"i ] ; if ( strcmp ( d->name, ''' # The code does not find what to execute The code does not find what to execute, so it exits the for loop and moves on to the next section of code." GCC,riscv,10,") = 6 ; } }" GCC,riscv,11,"; if ( frflags ) { * clear = rtx_to_tree ( VOIDmode , CLEAR_REGS ( const0_rtx , frflags , -1 )) ; ""gcc_unreachable();""" GCC,riscv,12,"BUILTIN_DIRECT : return riscv_expand_builtin_direct ( d -> icode , target , exp , target != const0_rtx ) ; ""exp, target, CALL_EXPR_FN(exp), riscv_builtins[fcode]} return riscv_expand_builtin(d->icode, exp, target, subtarget, mode, ignore);""" GCC,riscv,13," )2 switch ( d -> expand )" GCC,riscv,14,"; This switch statement checks the value of the ""builtin_type"" property of the structure pointed to by ""d"" and executes the corresponding case statement. Then, it returns the result of the riscv_expand_builtin_direct function with specific parameters based on the case. If none of the cases matches, the gcc_unreachable() function is called, indicating that the code should never reach that point." GCC,riscv,15,"prototype ; for (size_t i = ARRAY_SIZE(riscv_builtins) - 1; i >= 0; i--)" GCC,riscv,16,". out : const0_rtx ; } The tree node representing the appropriate built-in declaration is returned at the end of the code block." GCC,riscv,17,"build (*call_expr) (fsflags, old_flags) This will construct a call expression for the function whose flags have been cleared and updated." GCC,riscv,18,"false; < It will return a boolean value of 'false' if the input 'code' is greater than or equal to the size of the array 'riscv_builtins'. >" GCC,riscv,19,") { ... } The tree riscv_builtin_decl function takes an unsigned integer code and a boolean initialize_p as parameters and returns a tree." GCC,riscv,20,": return riscv_expand_builtin_direct_no_target ( d -> icode , target , exp , true ) ; default: return nullptr ; : 1" GCC,riscv,21,"exp ) ; for ( int argno = 0 ; argno < call_expr_nargs ( exp ) ; argno ++ ) riscv_prepare_builtin_arg ( & ops [ opno ++ ] , exp , argno ) ; return riscv_expand_builtin_insn ( icode , opno , ops , exp ) ; " GCC,riscv,22,"] . reg : const0_rtx ; This code checks for an error and returns either a generated register or a constant 0, depending on whether the target is present." GCC,riscv,23,"i ; ) This code snippet adds a new builtin function to the riscv_builtin_decls array and sets its corresponding index value in the riscv_builtin_decl_index array to i." GCC,riscv,24,"rtx op_value , enum machine_mode mode ) ; ""This function prepares a built-in argument by filling out the expand_operand structure with the given op_value and mode.""" GCC,riscv,25,") ); ""This code snippet creates an input operand using the normal expansion of the argument and specifies the type and mode of the tree type for the operand.""" GCC,riscv,26,2; GCC,riscv,27," ); with ; ;" GCC,riscv,28," ; the default abi is unspecified." GCC,riscv,29," } This code snippet specifies the target float ABI for the RISC-V architecture." GCC,riscv,30,"[106] = {...} };" GCC,riscv,31,"( #ifdef */ ""s_fpu"" #endif) ;" GCC,riscv,32,"const_to eval_value ( XEXP ( expr,1) , regno_to_rtx ) . 2 >" GCC,riscv,33,") ) ; ASSERT_TRUE ( rtx_equal_p ( src , CONSTM1_RTX ( mode ) ) ) ; end_sequence ( )" GCC,riscv,34,") ; run_vector_const_selftests();" GCC,riscv,35,"void ) {} ""This function performs a series of self-tests on the RISC-V chip and its components.""" GCC,riscv,36,"( ) ; \ src = SET_SRC ( PATTERN ( insn ) ) ; \ ASSERT_TRUE ( REG_P ( ) ) ; RTL code generation for vector broadcast instructions is working correctly in RISC-V extended vector mode." GCC,riscv,37,"\ __________________________________________________________________ <, GEN_INT ( 0 ) > ( , GEN_INT ( 0 ) ) ;" GCC,riscv,38,") ; rtx_insn * insn = get_last_insn ( ) ; ASSERT_TRUE ( rtx_equal_p ( SET_SRC ( PATTERN ( insn ) ) , gen_rtx ( mode , constm1_rtx ) ) ) , constm1_rtx" GCC,riscv,39,"get_last_insn ( ) ; <#insn>); ASSERT_TRUE (GET_CODE (dest) == REG && REGNO (dest) == FIRST_SIMD_REG + (num_elem - 1) * num_elem_bits);" GCC,riscv,40,"; ""Thus, the value of 'dest' will be correctly calculated and stored in 'poly_val' in the sequence.""" GCC,riscv,41,"SImode } , &worklist.front () , ) ; The last statement of this code snippet is: simple_poly_selftest ( ""poly_int64"", ABI_LP64D, {QImode, HImode, SImode}, &worklist.front(), 64);" GCC,riscv,42," ) ) ; bytes_per_riscv_vector = GET_MODE_SIZE (mode)" GCC,riscv,43,") ; ""modes );" GCC,riscv,44,"; } The code restores the global options and ABI to their original values." GCC,riscv,45,"global_options . abi ; The code snippet sets the RISC-V architecture backup string to the character array returned by the function ""c_str()"" and then parses it using the function ""riscv_parse_arch_string()"". After parsing, the RISC-V ABI is assigned to the variable ""riscv_abi""." GCC,riscv,46,", 0 ) -> += addr ; } } REG_N_REFS (regno) returns the number of uses of register number REGNO in the present function." GCC,riscv,47,"regno ) -> insert ({ this , iwithpat }); NUM_LIT - 1" GCC,riscv,48,", bb ) ; clear ( m ) ; } } The ""pass_shorten_memrefs"" function is designed to execute a series of transformations on the function ""fn"" in order to optimize memory references and improve the speed of the code." GCC,riscv,49,"set = REGNO_REG_SET ( get_regno ( IREG ( SYM ( bb ) ) ) ); The 'get_regno' function evaluates the register number symbol that corresponds to the given basic block symbol." GCC,riscv,50,"_basic_block ( bb ) ; The last statement of this code snippet is ""m = analyze_basic_block ( bb ) ;""." GCC,riscv,51,"addr ) ; } } } } ) ; addr) } }" GCC,riscv,53,") ; ""0""" GCC,riscv,54,"cfg, &pass_shorten_memrefs) to indicate the end of this code snippet and return a new pass_shorten_memrefs object using the given cfg value and specifying its address as &pass_shorten_memrefs." GCC,riscv,55,") ; } This code snippet creates a new pass_shorten_memrefs object with the given context and returns it as a pointer to the base class rtl_opt_pass." GCC,riscv,56,"NULL ) ; ""."", tmp->address()" GCC,riscv,57,") , """""" ""The specified instruction does not meet the conditions to be considered a prologue_matched instruction.""" GCC,riscv,58,"continue ; ""continue ;}""" GCC,riscv,59,"( target ) ) ) { target = ; NULL ;" GCC,riscv,60,"compare ) { return insn; }" GCC,riscv,61,"; } //This code snippet belongs to the definition of a ""begin"" function from a class called ""riscv_subset_t"" The definition of this function returns the value of the ""m_head"" variable, which is of type ""riscv_subset_t*"" and is marked as constant. This means that the function will return a constant pointer to the first element of the ""riscv_subset_t"" class, allowing for safe access to the elements without modifying them within the function." GCC,riscv,62,"[Ievent = 14230]; ""This function returns a pointer to the beginning of the RISC-V subset, using the 'const' keyword to ensure that the subset cannot be modified.""" GCC,riscv,63,"; } This function returns a pointer to the end of the RISC-V subset." GCC,riscv,64,"const noexcept { // //The 'end' method closes the program and ceases all executions. It is a constant function that does not throw any exceptions." GCC,riscv,65," { return this->length; }" GCC,riscv,66,"> { return data.size(); }" GCC,riscv,67,"false; } The function returns false to indicate that the mask policy does not apply." GCC,riscv,68,"noexcept => applies a meta policy to a tail policy (i.e. a policy that determines the behavior of any apply function when an irrelevant argument is added to the original list)." GCC,riscv,69,:returns a boolean indicating whether the tail policy should be applied or not. GCC,riscv,70,"PRED_TYPE_tt; }" GCC,riscv,71,") ; The last statement of the code snippet assigns the value of BYTES_PER_RISCV_VECTOR to the variable vlenb using the function gen_int_mode and specifies the type of value to be an rtx variable." GCC,riscv,72,") ; return gen_int_mode ( ( vector_align / BYTES_PER_RISCV_VECTOR ) , mode ) ; }" GCC,riscv,73,"true One ""one.""" GCC,riscv,74,"g , gsi_last ( f . gsi ) ) ; ""assign""" GCC,riscv,75," This function checks whether the given instruction has a merge operand." GCC,riscv,76,"pred_idx = 0 ; group . preds [ pred_idx ] != NUM_PRED_TYPES ; ++ pred_idx Looping over the array until the value at index pred_idx is equal to NUM_PRED_TYPES." GCC,riscv,77,"= 0 ; vec_type_idx < NUM_VEC_TYPES ;++ vec_type_idx ) { // do something } " GCC,riscv,78,"argument_types , group . ops_infos . types [ vec_type_idx ] , sizeof ( float ) ) ; The last statement of this code snippet allocates memory for the argument types of a function instance, using information from the group's operation type and the size of a float." GCC,riscv,79,"] , argument_types ); function_instance represents an instance of a function with the specified group info, vector type, and predicate index, and uses the argument_types variable to store information about its argument types." GCC,riscv,80,"( ) ; b.append_name(predication_suffixes[instance.pred]); return b.finish_name(type_suffixes[instance.type.index].vector);" GCC,riscv,81,") ; This statement adds a constant operand with the value of -1 to the input list for the specified mode." GCC,riscv,82,"vop ) ; , with the given vop as the operand value." GCC,riscv,83,"op ) ; ___ ;} opno++ }" GCC,riscv,84,"( mode ) )); This code snippet creates a new memory object named mem and sets its alignment based on the inner mode of the current mode." GCC,riscv,85,"[4] value ) { if ( operands < MAX_OPERANDS -1) { output_values[operands] = value; } The add_output_operand function adds the specified value to the output_values array if there is space available in the array." GCC,riscv,86,", MAX_MImode , invalid)" GCC,riscv,87,") to add an undefined input operand of the specified mode to the function." GCC,riscv,88,"mode)); } This code snippet is adding an undefined vector operand in the specified machine mode to the function expander." GCC,riscv,89,". op_info -> args [ .length () - 1 ) ) " GCC,riscv,90,"0; i < instance.get_num_arguments(); i++) { type_node *type = NULL; type = alloc ate_type_node( instance.get_argument_type(i) ); } } The above code snippet allocates and stores the argument types for the given function instance." GCC,riscv,91,"false ; 0" GCC,riscv,92,"i++) op_info -> args[i].base_type = 0;" GCC,riscv,93,") ; } name ) ; }" GCC,riscv,94," ) ; instance.pred == PRED_TYPE_m || instance.pred == PRED_TYPE_tu" GCC,riscv,95,"const { return tail_policy_ == tail_policy::apply; }" GCC,riscv,96,"), TYPE_MODE (m_rettype ), NULL). The statement returns the type mode of the return type of this function, along with the type mode of the arguments used and a null value." GCC,riscv,97,") { print(""Code is not safe"") } Code is not safe. " GCC,riscv,98,"0; if (instance.m_type == function_instance :: function_instance_type:: mixed) { return flags } mixed) { flags |= MIXED_FLAG; } return flags;" GCC,riscv,99,"flags; This code snippet checks if there is an instance that has a float type and if so, it will return the flags with the ""CP_READ_FPCR"" and ""CP_RAISE_FP_EXCEPTIONS"" included. Otherwise, it will simply return the flags." GCC,riscv,100,"const std:: string tmalacie, const std::string gpa ) {return true; }" GCC,riscv,101,"expression ) , args );" GCC,riscv,102,"|= RVV_REQUIRE_RV64BIT ; i = 0;" GCC,riscv,103,"true; else { The function returns false when it does not raise a floating point exception." GCC,riscv,104,"1, value_type value2) { using type = nullable_bool; // The last statement should be declaring the ""type"" of the registered_function_hasher. This ""type"" specifies how the values will be compared and if they are equal or not." GCC,riscv,105,"key ; } The ""equal"" function returns true if the instance stored in ""value"" is equal to the ""key"" passed in as a parameter." GCC,riscv,106,"exp ) . pointer_rfn ; built_in_function f = rfn . ident ; return expand_builtin ( code , exp , target ) ; } We are returning the result of calling the expand_builtin function with the provided code, expression, and target as parameters." GCC,riscv,107,") ; sizeof(char) * (strlen(m_current_name) + 1)" GCC,riscv,108,"gimple_stmt_iterator gsi) override; This code snippet defines an override function named ""fold"" which takes a gimple statement iterator as a parameter and returns a gimple pointer." GCC,riscv,109,"co> struct obstack that can be used to allocate chunks of memory for the function_builder object's m_direct_overloads member." GCC,riscv,110,"( exp_in ) { This code creates a new function_expander object with the specified parameters: an instance of the function, a tree representing the function declaration, a tree representing the expansion code, and an rtx representing the target location of the expansion." GCC,riscv,111,") )->void_parm_ret_info () ; } The last statement completes the implementation of the ""function_returns_void_p"" function by returning the result of calling the ""void_parm_ret_info"" function on the ""TREE_TYPE"" of the specified ""fndecl""." GCC,riscv,112,"), fntype ); This line of code returns the tree type of a function declaration, using the tree type of the function and the function type as its arguments." GCC,riscv,113,"Generator failure ) ; ""Error: Generator failure""" GCC,riscv,114,"m_ops ( ) If the function 'maybe_expand_insn' does not return a value, the last statement will return a null pointer (NULL_RTX)." GCC,riscv,115,"std :: string arg_name) { return arg_types[arg_name]; } This function returns the type of the argument with the given name." GCC,riscv,116,"hash) ; ""rfn stores the registered function from the function table that matches the hash value of the given function instance.""" GCC,riscv,117,"); The function_instance is returned with the specified string literal, read_vl for the bases, and read_vl for the shapes." GCC,riscv,118,". index ) NUM_LIT" GCC,riscv,119,") ; last statement: It is not possible for type_idx to be equal to all_ops[i].index or b_ops[i].index, so the if statements will never evaluate to true and the required_extensions will not be returned. This should never happen, so the code should never reach this point." GCC,riscv,120,") < /s>" GCC,riscv,121,"get_type_info ( ) ) ; It returns the type information for the tree." GCC,riscv,122,"] = builtin_types [ VECTOR_TYPE_vuint1_t ]" GCC,riscv,123," the given type_idx variable is within the range of VECTOR_TYPE_vbool64_t and VECTOR_TYPE_vbool1_t." GCC,riscv,124,". scalar_ptr ; This code snippet checks if the type index is within the range of available vectors. If it is, the corresponding scalar pointer from the builtin types array is returned. Otherwise, the scalar pointer from the builtin types array at the given index is returned." GCC,riscv,125,Pmode ); GCC,riscv,126,"prog , Pmode ) , Pmode ) ; ""return the result of the function 'gen_int_mode' using the parameters 'get_prefer_tail_policy ( prog , Pmode )' and 'Pmode'.""" GCC,riscv,127,"stmt-> fndecl ]; RFN is used to access the list of registered functions for the current statement and perform a fold operation on the specified GIMPLE statement." GCC,riscv,128,"stmt ) ; <\s> The gimple_fold_builtin function returns the result of the gimple_folder function, which takes in the registered function instance, declaration, statement iterator, and statement as parameters." GCC,riscv,129,"i++ ) function_table.add(builder.build(function_groups[i]));" GCC,riscv,130,= new hash_table < registered_function_hasher > ( Inside the return statement, we are retrieving the type of a specific argument from an operation's information." GCC,riscv,133,"c ) ) The statement returns the type of the tree obtained from the 'args' array of the operation information, using the 'get_tree_type' method and passing in the 'type.c' variable." GCC,riscv,134,"typeid ( rvv . default_rvv_type )); ""If the target architecture is not compatible with vectorization, then the function will return, otherwise the built-in types for the default vector type required by the rvv_switcher will be registered.""" GCC,riscv,135," ) ) The last statement returns the attributes of the specified data type." GCC,riscv,136,"{ ""A notify error function will be called""" GCC,riscv,137,"NULL_TREE ) */ ( in_tree ) ->unqualified ;" GCC,riscv,138,"TYPE_NAME ( type ) ); return function_name ( type ); } return __builtin_mangle ( type );" GCC,riscv,139,"NULL ; chain_index(0, TREE_VALUE(attr)))" GCC,riscv,140,"_element_type_index ) ; return the element type of the specified vector." GCC,riscv,141,"______ ) ; } CP_READ_REGISTER;" GCC,riscv,142,") { // this statement will be executed if the flags variable has the CP_READ_FPCR flag set } else { // this statement will be executed if the flags variable does not have the CP_READ_FPCR flag set } // the function_instance class contains a method that checks if a function reads the global state by using the flags variable, which keeps track of the function's call properties." GCC,riscv,143,"vectype ; The TYPE_ALIGN ( vectype ) must be less than or equal to ." GCC,riscv,144,"( INT32_TYPE ) ; tree uint32_type_node = get_typenode_from_name ( UINT32_TYPE ) ; }" GCC,riscv,145,>build a new group using the shape as a parameter. GCC,riscv,146,"= TREE_TYPE ( decl ) ; The purpose of this code snippet is to create a new declaration for the vector type specified by the ""type"" variable. The new declaration is then added to the language's declaration list and the ""vectype"" variable is set to the main variant of the declared vector type." GCC,riscv,147,", HOST_WIDE_INT max , const char * name ) ` This function reports when the value of the argument located at the specified position is out of the specified range." GCC,riscv,148,|type == RVV_BASE_vlmul_ext_x32 --> Type matches 'RVV_BASE_vlmul_ext_x32' GCC,riscv,149,"min , max ) && require_nonnegative ( argno );" GCC,riscv,150,"true; The function will return true if the argument ""argno"" is within the range of ""min"" and ""max"" values, and false otherwise." GCC,riscv,151,( exp_tree ) ) GCC,riscv,152,"] = NUM_LIT + 1" GCC,riscv,153,"riscv_vectorize.mov ; i = 0" GCC,riscv,154,"; This code snippet checks if the variable ""type"" is equal to the error_mark_node and if so, it will return without doing any further actions." GCC,riscv,155,"(type)); error_mark_node ); return TYPE_ATTRIBUTES (type);" GCC,riscv,156,"op2 ) ; opno++." GCC,riscv,157,", true ); The last statement of this code snippet is: ""if (use_real_mask_p(pred)) add_input_operand(arg_offset++, true);""." GCC,riscv,158,") ) ; .. 56;" GCC,riscv,159,"""> The four 'add_input_operand' statements in the snippet pass two arguments Pmode and the result of calling either 'get_tail_policy_for_pred' or 'get_mask_policy_for_pred' with the argument 'pred', depending on whether 'apply_tail_policy_p' or 'apply_mask_policy_p' returns true." GCC,riscv,160,"== PRED_TYPE_diens EOD" GCC,riscv,161,"pred == PRED_TYPE_tumut These lines are checking if the value of the variable ""pred"" is equal to any of the listed PRED_TYPEs." GCC,riscv,162,"merge_args_t *args) { if (args->merge.real_merge ()){ return args->equalities_found;} The last statement of this code snippet is: ""return args->equalities_found;""" GCC,riscv,163,") ; add_input_operand ( mode , vs2 ) ; // Add the third operand, vs2, to the input operands list." GCC,riscv,164,") { // Function builder destructor }" GCC,riscv,165,"( have_regs_of_mode ) ) ; return have_regs_of_mode;" GCC,riscv,166,( m_old_have_regs_of_mode ) ) ; => This code copies m_old_have_regs_of_mode to have_regs_of_mode GCC,riscv,167,"( ); return ; } ratio;" GCC,riscv,168,"; The code snippets checks if the uses and defs of a register from an instruction and its predecessors lies in the same basic block and returns false if the uses or defs are found, otherwise it returns true." GCC,riscv,169,"; This code snippet searches for a set within the ""sets"" variable that has the same index as the ""bb"" variable, and if found, returns true. Otherwise, it returns false." GCC,riscv,170,) == b GCC,riscv,171,) ) ) { R GCC,riscv,172,"== other && m_suffix == other.m_suffix && m_suffix == other.m_suffix" GCC,riscv,173,"; This statement returns the current object." GCC,riscv,174,") { return -1; } return false;" GCC,riscv,175,"local_fields1 , info1 ); This code snippet returns the opposite boolean value of the compatibility check between the local fields in info1 and info2." GCC,riscv,176,"= new_info ; block_info . local_dem . clear ( ) ; The block_info's local_dem is set to the value of new_info from line 42 of this snippet if the block_info's reaching_out is dirty." GCC,riscv,177,", true , true , true ) ; set_info * set = get_same_bb_set ( sets , e -> src ) ; block_info.local_dem = set ? avl_info(prop.get_avl(), set) : current_block_info | valid avl info |" GCC,riscv,178,"s> ""and returns the result of the comparison.""" GCC,riscv,179,"vsew ) { unsigned int sew = vsew * vlmul; return sew; }" GCC,riscv,180,"vlmul_value ){ return 8 * (1 << (vlmul_value / vlmul)); } " GCC,riscv,181,"ratio ) return vlmul;" GCC,riscv,182,") if (m_vector_manager -> vector_edge_avl [e->dest()].empty()) { continue; }" GCC,riscv,183,"rinsn , watermark ) ; The code snippet above validates a change to a register instruction and checks if it is worthwhile. If it is not worthwhile, it returns false. Otherwise, it confirms the change group and updates the instruction in the control flow graph." GCC,riscv,184,") ; insn->insn_code() == UNSPEC_VTYPE || insn->insn_code() == UNSPEC_VTYPEX" GCC,riscv,185,"= ; pat = replace uses of the virtual register with new_uses." GCC,riscv,186,"= const_cast ( RTX_PATTERN ( PATTERN ( rinsn ) ) ) ; = avoid_all_insn_with_no_vl_reg. i ; change.new_defs = {rinsn->rtl()}; }" GCC,riscv,187,"&& ) !*** other . has_non_zero_avl ( ) ""The function returns true if the demand for AVL is non-zero and 'other' has non-zero AVL values.""" GCC,riscv,188,"AVL, or get the avl information " GCC,riscv,189,"new_prob = curr_prob ; The code snippet will assign the current probability to the new probability if the new probability is not initialized." GCC,riscv,190,"unreachable ; // Sets the current block's probability to 'unreachable' if it is the entry block of the current function." GCC,riscv,191,") ) ; bitmap_vector_clear ( vector_comp , last_basic_block_for_fn ( cfun ) ) ; bitmap_vector_set_all (vector_avin, block_setsize); Set all bits in the vector_kill bitmap to 1." GCC,riscv,192,"( cfun ) ) ; bitmap_vector_clear ( vector_comp , last_basic_block_for_fn ( cfun ) ) ;" GCC,riscv,193,") i < NUM_LIT" GCC,riscv,194,") ; This code will dump the vector information to the standard error output." GCC,riscv,195,"/s> is an array of demands categorized by type." GCC,riscv,196,"{ if ( type == urgent ) { return true; } else if ( type == normal ) { return false; } return false; } } ""The demand_type parameter dictates whether the demand is urgent or normal, and the function returns true if the demand is urgent and false if the demand is normal.""" GCC,riscv,197,"type ] ; }' }" GCC,riscv,198,"const vector_insn_info &info2) { return info1.lmul != info2.lmul; }" GCC,riscv,199,"vector_insn_info & info2 ) ; Returns whether the two given vector instruction info objects have different mask policies." GCC,riscv,200,"( ) ; } The function ""different_ratio_p"" returns true if the ratio obtained from the ""get_ratio"" method of the two ""vector_insn_info"" objects ""info1"" and ""info2"" is different, otherwise it returns false." GCC,riscv,201,") ; ""This code snippet compares the ratio values returned by the methods 'get_ratio' from two objects named 'info1' and 'info2' and returns true if they are not equal.""" GCC,riscv,202,". get_sew ( ) what do we get? : when this code is executed by a program, it will return a boolean value of true or false depending on whether the get_sew method of info1 and info2 objects are equal or not." GCC,riscv,203,"( ) ; This statement compares the ta (teaching assistant) values of info1 and info2 and checks if they are not equal." GCC,riscv,204,"State::Active || m_statusCode == 200 && m_responseTime < 500;" GCC,riscv,205,"qut_states; A return statement can only return a boolean value, not equal to m_state (e.g. !m_state);" GCC,riscv,206,"++ ) 0" GCC,riscv,207,"( rinsn ) ; ""I NSN_UID"" of RTL instruction in the dump file ""Insn_uid"" is used to store an identification number for a particular RTL instruction in the dump file." GCC,riscv,208,"int &); Checks whether the given integer reference is empty." GCC,riscv,209,"VL_ Comment (val) for the return statement." GCC,riscv,210," ; count ++ ) vector_exprs[i];" GCC,riscv,211,"i, vector_exprs[i]) ) return 1; " GCC,riscv,212,"{ Return nullptr if the first instruction in the set is artificial." GCC,riscv,213,") { return (insn != NULL) && (insn->code == CODE_LOAD); }" GCC,riscv,214,"_num_lit ( rinsn ) <=; 100" GCC,riscv,215,"; This function returns a pointer to the last instruction that kills the register represented by the RTX variable x in the basic block bb." GCC,riscv,216,"() ; This line of code returns the ratio value obtained from the `info1` object." GCC,riscv,217,"info2 )
  • Returns the address of the first sign extension word of each group in the two info parameters.
" GCC,riscv,218,"const vector_insn_info & info2, int & sew )= ""returns the number of elements that have been successfully sewn together.""" GCC,riscv,219,"b>
" GCC,riscv,220,"get_sew ( ) ""compares the values returned by the methods 'get_sew' of 'info1' and 'info2', and returns the result of the comparison.""" GCC,riscv,221,"""return info1.""" GCC,riscv,222,"( ) ) continue ; new_info . set_dirty(true);" GCC,riscv,223,") ; This code snippet calls the emit_vsetvl_insn function with the information from the m_vector_manager and the instruction UID of rinsn." GCC,riscv,224,") ) ; gcc_assert ( ! m_vector_ config_insn_p ( insn -> rtl ( ) ) ) ;" GCC,riscv,225,"rtx_insn = ( FOR_EACH_BB_FN ( cfg_bb , cfun ) { auto & info = m_vector_manager -> vector_block_infos [ cfg_bb -> index ] . reaching_out ; gcc_assert ( m_vector_manager -> expr_set_num ( m_vector_manager -> vector_del [ cfg_bb -> index ] ) <= 32) ; for ( size_t i = 32 ; i < m_vector_manager -> vector_exprs . length ( ) ; i ++ ) { if ( bitmap_bit_p ( m_vector_manager -> vector_del [ cfg_bb -> index ] , i ) ) { if ( info . dirty" GCC,riscv,226,"nullptr ; vector_antic = nullptr ; vector_transp = nullptr ; vector_comp = nullptr ; vector_avin = nullptr ; vector_avout = nullptr ; The vector_edge_list pointer is set to null after all the vector pointers have been freed." GCC,riscv,227,"; The value returned by get_default_ma() , because the code does not enter any of the previous conditional statements." GCC,riscv,228,") ) ; demand ( DEMAND_TAIL_POLICY ) ; } ""In both cases, the set_ta() and demand() functions are called with the argument DEMAND_TAIL_POLICY.""" GCC,riscv,229,"f ) { The function * f is an argument." GCC,riscv,230,", new_info , NULL_RTX ) ; If rinsn is a vector set vsetvl instruction, generate a new pattern using the specified parameters; otherwise, generate a new pattern with VSETVL_DISCARD_RESULT as the pattern type and NULL_RTX as the second and third arguments." GCC,riscv,231,"_mode ) available_list.push_back(i);" GCC,riscv,232,"[ vector_exprs [ i ] ] . expr_type == available ) `i < vector_exprs.length()` Note: spell the last statement completely. The last statement of this code snippet is `i < vector_exprs.length()`, which is the condition for the for loop." GCC,riscv,233,") ; visited_list.insert(new_cfg_bb); }" GCC,riscv,234,"> ( set ), true ); } This code returns all sets that meet the specified criteria, including sets that are of type phi_info and sets that are real, phi, and param types." GCC,riscv,235,"void) The last statement is ""return the root node of the AVL tree.""" GCC,riscv,236,"Info; } The get_avl_info function returns a constant reference to the avl_info object stored in the class." GCC,riscv,237,"av ) The function will return a generated rtx instruction that references a register in Pmode, using the available value from the ""get_avl_source()"" function." GCC,riscv,238,"char *func_name, ) get_avl_source (char *func_name, ) { available_source.get(root, value); returns the source code available for the given function name." GCC,riscv,239,"i ; } return nullptr ; The function get_backward_fault_first_load_insn will return a pointer to the first load instruction in the basic block before the given instruction, if such a load instruction exists." GCC,riscv,240," ) ; the current user preference mask policy." GCC,riscv,241,"& KeepFinalResult ) ); } = PreferTailRecursion" GCC,riscv,242,"PREFERENCE_SHIFT ) & ); (NUM_LIT != 0);" GCC,riscv,243,"; } vector_exprs.length()" GCC,riscv,244,") ) ) ---we found an instruction- that reads a value from the VL register. " GCC,riscv,245,"; return info; } The function returns a vector instruction info object that is empty." GCC,riscv,246,"vec; return getUser Rpc (vec, OPcode);} This function creates and returns an empty vector instruction object corresponding to the specified Opcode." GCC,riscv,247,"m_ma ; } This code snippet returns a boolean value that indicates the value of the variable ""m_ma""." GCC,riscv,248,"; } The ""get_ratio"" function returns an unsigned 8-bit integer representing the ratio value stored in the variable ""m_ratio""." GCC,riscv,249,"ta_grant ; } ""The code snippet will return the current state of the ta_grant boolean. """ GCC,riscv,250,", 1 ) , 0 ); This code snippet returns the destination of the pattern rinsn." GCC,riscv,251,") , OPCODE (rinsn)), recog_data.operand[get_attr_vl_op_idx(rinsn)]) ; }}" GCC,riscv,252,") ; if (merge_op_idx == INVALID_INDEX) merge_op_idx = calculate_merge_op_idx(sew, vlmul);" GCC,riscv,253,"block_p ( BLOCK_REPEAT ) ) { return false;" GCC,riscv,254,"false ; } This function returns true if the second vector instruction information object does not require multiple-lane multiplication or a ratio operation, but instead requires a greater-than-predicate operation on the sew (stride element width) value, and the sew value of the first object is less than the sew value of the second object. Otherwise, it returns false." GCC,riscv,255,The "hard_empty_p" function is a constant that returns a boolean value indicating whether or not a hard empty operation has been performed. GCC,riscv,256,"( ); } This function returns a boolean value indicating whether or not the AVL object contains an immediate value." GCC,riscv,257,"; } // This function returns the value of the member variable ""has_avl_no_reg"" in the object ""m_avl""." GCC,riscv,258,"; A bool data type is returned by the function." GCC,riscv,259,"size ( ) ? true : false< u>; } false" GCC,riscv,260,"() ; } The last statement returns the result of the 'has_non_zero_avl()' function from the 'm_avl' object." GCC,riscv,261,"false ; The function returns true if the basic block contains a non-debug instruction with a vtype operand, and false otherwise." GCC,riscv,262,"insn ) { It checks whether the given instruction is a vector load operation." GCC,riscv,263,", avl ) ; ""Return whether or not the AVL register has been killed by any instruction in the basic block.""" GCC,riscv,264,"_p ( rtx_to_mem ( insn ) ); } NUM_VTYPES" GCC,riscv,265,"get_attr_type ( rinsn ) == TYPE_VFMUL ; }' This function checks if the given rtx_insn is a valid VLMUL instruction." GCC,riscv,266,"vector_insn_info & info2 ) { return info1.friendlyName != info2.friendlyName && info1.isVector != info2.isVector; } This function returns a boolean value indicating whether the two given vector instruction objects have incompatible attributes." GCC,riscv,267,"& info2 ){ return (info1.is_compatible(info2) && info2.is_compatible(info1)) ? false : true;" GCC,riscv,268,"( types & BB_HEAD_SET ) ) // If none of the previous conditions are met, the function will return false." GCC,riscv,269,"dump_file , ""Dynamic VsetVLs written to file""); ""Dynamic VsetVLs written to file""" GCC,riscv,270,"true ; This code checks for equality between two objects and returns true if the objects have the same ""vlmul"" value and do not have the demands for ""sew"" or ""ratio""." GCC,riscv,271,"; } This code checks if the current basic block in a control flow graph has a successor that directly leads back to the same basic block, and returns true if such a successor is found, or false if not." GCC,riscv,272,".getVLMax()); This code will initialize a new pass_vsetvl object with the maximum vector length (VLMax) defined in the context." GCC,riscv,273,"(ma ) ; This code snippet is extracting a cached instruction and checking if it has a valid micro-attribute. If it does not, it will retrieve the default micro-attribute. Otherwise, it will check if the micro-attribute is agnostic." GCC,riscv,274,"return false ; } return true ; } NUM_LIT " GCC,riscv,275,".m_source; This line of code returns a boolean value indicating if the m_source variable of the current object is equal to the m_source variable of another object." GCC,riscv,276,") { return false ; } } The last statement is ""return true;""." GCC,riscv,277,". get_source ( ) -> insn ( ) ) ; The last statement of this code snippet is: ""insn_info * def_insn = extract_single_source ( m_avl . get_source ( ) -> insn ( ) ) ;""" GCC,riscv,278,"rtl ( ) ) ) The final statement of this code snippet is ""return;"" at line 21." GCC,riscv,279,"const vector_insn_info & info2 , const mask & mask0 ) { ... return true; // This function checks if there is a possible zero AVL permutation between two vector instructions, given the mask representing which elements of the vector are accessed. }" GCC,riscv,280,") ; To insert new edges into the vector manager's edge list and commit them if necessary." GCC,riscv,281,"has_avl_reg ( ) ; If the condition of the if statement is true, the function returns the demand value of info1 for AVL and checks that info1 has an AVL registration. Otherwise, it only checks that info1 has an AVL registration." GCC,riscv,282,") ) ; } The output number of the vector expressions created, which is obtained by using the fprintf function, is printed to the dump file." GCC,riscv,283,", ratio_utilA& ratio" GCC,riscv,284,"( rinsn ) != BAD_DIRECT NUM_LIT && get_attr_TYPE BAD_DIRECT." GCC,riscv,285,"=false; There are no other functions or objects or variables in this code snippet. This statement creates a function called ""real_dirty_p"" and sets its default value to ""false""." GCC,riscv,286,"...) */ an object or environment with various noticeable impurities or messes." GCC,riscv,287,"insn -> bb == bb } ... ;}" GCC,riscv,288,"rtx stop ) { This function checks whether the given instruction (insn) is a real instruction and is in the same basic block as the given stop instruction (stop). }" GCC,riscv,289,"( ) && def_insn -> i s_def_insn ->bb() != dt_insn->bb()) This statement checks whether the basic block of the defined instruction def_insn is equal to the basic block of the current instruction insn, and if not, the function returns false." GCC,riscv,290,") > ��all the necessary steps have been taken to release the vector instruction and block information as well as the to_refine_vsetvls and to_delete_vsetvls.��" GCC,riscv,291,"get_avl_source ( ) ; This code snippet compares the AVL tree and AVL source of two objects and returns true if they are equal." GCC,riscv,292,".get_ratio () True" GCC,riscv,293,". get_ta ( ) ; hot) This function checks whether the given rinsn instruction can be treated as a scalar move instruction for optimizing linear scalar value operations." GCC,riscv,295,"
Return the name of a section with the character ""s"" as the first character. SECTION This statement is almost correct, however, it should be ""SECTION->named.insert(name)"" instead of ""s->named.BULL(name)"". So the complete statement should be:
Return the name of a section with the character ""s"" as the first character and insert it into the named field of the section." GCC,riscv,595,"); ""[STR_LIT] %d"" , TARGET_STRICT_ALIGN ? 1 : riscv_stack_boundary );""" GCC,riscv,596,") ); This code snippet returns the result of calling the function `gen_rtx_fmt_ee` with the arguments `code`, the mode of `dest`, `x`, and `y`, and passing the result as the second argument to the function `riscv_emit_set`." GCC,riscv,597,", rtx y ) { rtx new_rtx = gen_rtx_binary (code, dest, x, y); return new_rtx;" GCC,riscv,598,") ; The last statement of this code snippet is ""\ break ; \ }""." GCC,riscv,599,", inv" GCC,riscv,600,"_insn *unexpected_value ) { ... return gen_rtx_SET (VOIDmode, gen_rtx_CONST_INT (Unexpected_value)); } This function is used to generate a SET instruction in RISC-V architecture, with the value of 'Unexpected_value' being set as the constant integer operand." GCC,riscv,601,") ) ; } The riscv_emit_set function takes in a target and a source, and uses the gen_rtx_SET macro to generate an instruction that sets the target to the value of the source." GCC,riscv,602,"regno ) ) ) return true ; true;" GCC,riscv,603,") ) ; This code snippet generates a conditional jump instruction based on the result of the comparison between two operands, op0 and op1." GCC,riscv,604,") ; ""Then, the condition for the comparison is generated using the code, mode, and operands.""" GCC,riscv,605,"( - step2 ) ) ) ; rtx elf = NULL_RTX ; rtx cfa_adjust_value = gen_rtx_MINUS ( Pmode , stack_pointer_rtx , GEN_INT ( step2 ) ) ; rtx cfa_adjust_rtx = gen_rtx_SET ( stack_pointer_rtx , cfa_adjust_value ) ; elf = alloc_reg_note ( REG_CFA_OFFSET , cfa_adjust_rtx , elf ) ; RTX_FRAME_RELATED_P ( insn ) = ; REG_NOTES ( insn ) = elf ; } "" ;""" GCC,riscv,606,", op1 ) ; rtx result = riscv_expand_binary(target, op0, op1, cmp);" GCC,riscv,607,") ; }" GCC,riscv,608,"frame , insn 0" GCC,riscv,609,"step1 ; } 0b111111" GCC,riscv,610,COSTS_N_INSNS (42) ; GCC,riscv,611,"); ""\n""" GCC,riscv,612,"question ) 1" GCC,riscv,613,"["" 2""] ); }" GCC,riscv,614,"= offset ; } n_subfields" GCC,riscv,615,") ; The last statement returns the result of the riscv_emit_binary function, which takes in the given code, a register RTX of the given mode, and two operands, x and y." GCC,riscv,616,"false; ""This code snippet checks if the current user has the necessary permission to create pseudo-p values and also if they are not currently in the process of splitting. If both conditions are met, it will return a value of 'false'.""" GCC,riscv,617,"-> frame . mask , regno - FP_REG_FIRST ) ) { bool save_reg = TRUE ; lop a in the first statement of the code snippet." GCC,riscv,618,"; __; This code snippet checks if the rtx variable ""set"" is frame-related." GCC,riscv,619,"value ); The last statement returns the argument information for the given input arguments." GCC,riscv,620,"info . fpr_count;" GCC,riscv,621,info.fpr_count "The value of 'info.fpr_offset' and 'info.fpr_count' sum up to the number of floating point registers needed for riscv_get_arg_info method". GCC,riscv,622,", alignment ) ) ;" GCC,riscv,623,"; if ( cfun -> machine -> naked_p and interrupt_handler_p ) return false; else return true;" GCC,riscv,624,"ArgInfoFlags < __num_lit__);" GCC,riscv,625,") , << >> , fields [ ] . offset ) ; }" GCC,riscv,626,") ; case MODE_INT : return gen_rtx_REG ( mode , gregno ) ; default : return mem_operand ( , ); ; }; info->alignment = alignment;" GCC,riscv,627,"UNKNOWN_MODE ; } ""interrupt_mode""" GCC,riscv,628,") ; return gen_got_load_tls_gdsi(dest, sym);" GCC,riscv,629,"); This code snippet is used to handle the case where the register size (Pmode) is set to the default register size (DImode) and is used to determine which instruction to generate for loading a global offset table (GOT) entry for thread local storage (TLS)." GCC,riscv,630,"; } This code snippet returns a generated rtx that load the TLS symbol from the global offset table for either DImode or SImode, depending on the processor mode." GCC,riscv,631,") ; ""depending on whether the variable Pmode is equal to DImode, a function is called to generate a GOT load for the passed in destination and symbol, and the result is returned. If Pmode is not equal to DImode, a different function is called to generate the GOT load for the same destination and symbol, and the result is returned.""" GCC,riscv,632,"|| XINT ( elt , ) != ) return ; } return ; } len - 1" GCC,riscv,633,"* no_add ATTRIBUTE_UNUSED ) This function handles function declaration attributes for RISC-V architecture." GCC,riscv,634,") / UNITS_PER_WORD ; 1. FP_UNIT" GCC,riscv,635,"; The code snippet is returning the logical expression of ""not interrupt_handler_p or df_regs_ever_live_p""." GCC,riscv,636,"to_regno ATTRIBUTE_UNUSED , const unsigned rtx_class ATTRIBUTE_UNUSED) { return false; }" GCC,riscv,637," * 1 + ) ; * 1 - 1" GCC,riscv,638,"( ) ; cfun->machine->frame.stack_pointer_offset" GCC,riscv,639,"malloc - and resets the anchor tag to its default state." GCC,riscv,640,"true ); This function allocates and returns a pointer to a newly initialized machine_function struct." GCC,riscv,641,"( type ) ) != NULL_TREE; } ""RISCV_INTERRUPT_ATTRIBUTE""" GCC,riscv,642,") ); ""small-data"" == 1 || ""large-data"" == 0" GCC,riscv,643,"->core.can_issue[0];} ""The return value of this function is the maximum number of instructions that can be issued per cycle by the RISC-V processor core.""" GCC,riscv,644,", tune_param == would return tune_param and tune_p" GCC,riscv,645,"address_info ; riscv_address_info.address_info ; This code snippet defines a function to determine if a given address is legitimate for use in the RISC-V architecture, taking into account the given machine mode and strictness settings. The function uses a struct called ""riscv_address_info"" to store relevant information and then returns the value stored in the ""address_info"" member of that struct." GCC,riscv,646,") ; } is a function that checks if the constant x is a legitimate constant for the given machine mode." GCC,riscv,647,", mode ) 3, 0, ""reload""" GCC,riscv,648,", Pmode ) ; } This code snippet creates a temporary register called ""reg"" with the mode Pmode and sets its value to the address of a RISCV call instruction." GCC,riscv,649,") ; The final statement of this code snippet is: ""src = force_const_mem ( mode , src ) ;""" GCC,riscv,650,"Pmode , 0 , Pmode ) dest = gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, tp, tmp)) ;" GCC,riscv,651,") ; emit_insn ( gen_adddi3_insn ( dest , tmp ) ) ; break ; If neither flag_pic nor flag_pie are set, the model is set to TLS_MODEL_LOCAL_EXEC." GCC,riscv,652,"MEMMODEL_RELAXED : default: return false ; } } ""This function checks if a release fence is needed for the specified memory model.""" GCC,riscv,653,"syn_zqueue )) The code returns the total cost, taking into account the memory cost and the secondary cost of moving memory in the given mode and synchronous zqueue." GCC,riscv,654,"< is unsigned = 32;" GCC,riscv,655,"mode2 ) == MODE_UNCLASSIFIED ) ); This function checks whether two given machine modes can be tied together in the RISC-V architecture. It returns true if the modes are equal or if one mode is a float and the other is not classified." GCC,riscv,656,"x ) ; } num_ops" GCC,riscv,657,") ); the attribute 'struct is not equal to the attribute 'null'" GCC,riscv,658,"< old_cost ; } NUM_LIT" GCC,riscv,659,"( insn) , outer insns ) ; The last statement of this code snippet is: ""old_cost = optimize_bb_for_speed_p(BLOCK_FOR_INSN(insn)) ? address_cost(XEXP(memref, NUM_LIT), GET_MODE(insn), outer insns) : 0; """ GCC,riscv,660,", str , GP_REG_FIRST + , GP_REG_LAST ) ; }; riscv_emit_attribute_p = true ;" GCC,riscv,661,"""[ DONE"" ]"") ;" GCC,riscv,662,"std : strlen ( s ) ; , ""The number is %d""" GCC,riscv,663,") ; this_rtx = gen_rtx_PLUS ( Pmode , this_rtx , ) ; }eos ) ;" GCC,riscv,664,"(); NULL" GCC,riscv,665,"return ; case 2: return ; case 4: return ; case 8: return ; case 12: return :: " GCC,riscv,666,"NULL; } the null character, indicating the end of the string." GCC,riscv,667,") return null; }" GCC,riscv,668,".name , tunestring ) == 0 ) ret" GCC,riscv,669,": ; I = 0" GCC,riscv,670,"PI , gen_rtx_EXPR_LIST ( VOIDmode , gen_rtx_REG ( mode2 , regno2 ) , GEN_INT ( offset2 ) ) ) ); The last statement should be replaced with a number representing the number of elements in the vector. This number depends on how many elements are being passed into the gen_rtx_EXPR_LIST function." GCC,riscv,671,"0; } return 1;" GCC,riscv,672,") ; fputs ( , file ) ; break ;" GCC,riscv,673,") output_operand_lossage ( , letter ) ; else fputs ( reg_names [ ( int ) REGNO ( op ) ] , file ) ; _" GCC,riscv,674,") ; reloc = hi_reloc ? ""High relocation type"" : ""Low relocation type""; break; default: output_operand_lossage(""Invalid relocation type"", hi_reloc ? 'h' : 'R'); return; } fprintf(file, ""Relocation type: %s"", reloc); output_addr_const(file, riscv_strip_unspec_address(op)); fputc(')');" GCC,riscv,675,"; This code snippet checks if the 'type' is not null and if so, it returns the result of promoting the mode of the given type with the provided 'punsignedp' parameter. Additionally, it assigns the value of the 'punsignedp' parameter to the 'unsignedp' variable and then calls the 'PROMOTE_MODE' function with the 'mode' parameter, 'unsignedp' variable, and 'type' parameter. Finally, it assigns the updated value of 'unsignedp' to the 'punsignedp' parameter and returns the resulting mode." GCC,riscv,676,"{ printf ( ""R""); } printf ( ""ISC-V compressed register""); }" GCC,riscv,677,"return ( ... ); ""... regno is a compressed register.""" GCC,riscv,678,"== FRAME_POINTER_REGNUM ) { in these cases, it is necessary to return false as the registers cannot be renumbered to ARG_POINTER_REGNUM or FRAME_POINTER_REGNUM." GCC,riscv,679,"; // end of riscv_reorg function " GCC,riscv,680,", dwarf ) ; This code snippet adds a register note for the Dwarf free space algorithm to restore a saved frame register and defines the computation of the canonical frame address (CFA) by adding an offset to the stack pointer at the end of the function." GCC,riscv,681,"); 1 ;" GCC,riscv,682,") return gen_rtx_SYMBOL_REF (& ); -1 Return null if the count is not equal to -1." GCC,riscv,683,"arg ) ; 0. 0 , as false can be assumed since the second argument of {NULL} is always false." GCC,riscv,684,"( mask , n - > 1 > GP_REG_RV = n - 1 ) BITCLEAR ( mask , n ); return mask; }" GCC,riscv,685,"_block , tmp ) ) The last statement of this code snippet is setting the frame expression of the memory block to the temporary frame set by the RISC-V processor." GCC,riscv,686,") ; The code snippet creates a frame memory and calls a function, passing in a register and the frame memory as arguments." GCC,riscv,687,"rclass ) { return (mode == MODE64 && rclass == GENERAL_REGS); } This function returns a boolean value indicating whether or not secondary memory is needed for an instruction in the given machine mode and register class." GCC,riscv,688,") ; return mlocal::ptr ->v < NUM_LIT = cfun->decl->decl_minimal_alignment / BITS_PER_UNIT" GCC,riscv,689,"( insn ) ); //create a list of frame-related expressions and allocate them to REG_NOTES of the given instruction" GCC,riscv,690,"MIN_SIZE , MAX_SIZE ) ; This code snippet returns the result of a logical AND operation between two variables, ""g_switch_value"" and the result of a function call to ""IN_RANGE"", passing in three arguments: ""size"", ""MIN_SIZE"", and ""MAX_SIZE"". This function returns a boolean value indicating whether or not the ""size"" variable is within the range defined by ""MIN_SIZE"" and ""MAX_SIZE""." GCC,riscv,691,"( ...machine_mode, unsigned int )" GCC,riscv,692,"; The purpose of this snippet is to check if the given source and destination registers can represent a double floating point value." GCC,riscv,693,"high ; NUM_LIT" GCC,riscv,694,"( dest ,src ) ) { This code performs a split move of a doubleword between two registers, using the RISC-V subword function to obtain the low portion of the destination register. If the destination register is a valid register and there is an overlap between the destination and source registers, the split move operation is performed." GCC,riscv,695,"-> , MODE_INT, lo);" GCC,riscv,696,"codes [ CODES_LIT ] ; " GCC,riscv,697,"; the cost of building an integer in the RISC-V architecture is equal to the sum of the low value and the high value, as well as whatever cost is incurred from building the high value." GCC,riscv,698,") ; low = gen_rtx_LO_SUM ( Pmode , *temp , label ) ; = MAX ( ( unsigned ) ( bytes + ) , ) This code snippet creates a label for a SYMBOL_PCREL, updates the label's flags, and generates a low sum for the label's value." GCC,riscv,699,"GEN_INT ( seqno ) ) ) ; emit_move_insn ( label , temp ) ; seqno ++ ; return label ; } ""seqno); }" GCC,riscv,700," symbol_type == SYMBOL_GOTPCREL;" GCC,riscv,701,"; op is the result of adding the offset value to the unspecific address of the base." GCC,riscv,702,"this) 8; 8;" GCC,riscv,703,"); return GEN_INT (SWAP (0, XxX)); } This code snippet swaps the first and last bytes of the SImode instruction given by inst and returns an rtx representation of the resulting instruction." GCC,riscv,704,", 0 ) ; return inst ; amr -= 2 * sizeof ( unsigned int ) ; }" GCC,riscv,705,"tp , sym ) ; ""return gen_tls_add_tp_lesi (dest, base, tp, sym);""" GCC,riscv,706,", tp , sym ) ; The last statement is: return gen_tls_add_tp_lesi ( dest , base , tp , sym ) ;" GCC,riscv,707,") == TLS_MODEL_INITIAL_EXEC ; It checks whether the symbol referenced by x is using the TLS initial-exec model." GCC,riscv,708,"rtl ) It is a function to check if the given RTL is a TLS (thread-local storage) symbol for RISC-V architecture." GCC,riscv,709,") ) ; riscv_emit_move ( mem , riscv_swap_instruction ( jr_lo_func ) ) ; In this code snippet, riscv_emit_move is used to emit the code for writing to the specified memory location the swap instruction obtained from the given rtx argument." GCC,riscv,710,""".srodata"" ; } assertion is that one-only declarations are prefixed with "".srodata"" by the ""\u002"" macro when abstracting the SECCAT_SRODATA sections." GCC,riscv,711,"string ) ; } ""string = ACONCAT(linkonce, prefix, name, NULL);""" GCC,riscv,712,"& offset ) ; _EasyArray_MoreData8 address(unk) { return base; } This code snippet returns the base address from the given address, after splitting it into a base and offset." GCC,riscv,713,", 0 ) ; ""return the base and the offset, with 0 as the Pmode constant value.""" GCC,riscv,714,", offset, symbol_type ), UNSPEC_RISCV_ADDRESS_OFFSET ); = 3" GCC,riscv,715,"enum riscv_symbol_type symbol ; ) ); }" GCC,riscv,716,"( x ) , GET_MODE ( x ) )); The code checks if the variable x is a subregister, and if so, sets x to the parent register. Then, the last statement returns true if x is a valid register and its register number and mode are suitable for use as a base." GCC,riscv,717,") ) : GET_MODE_ALIGNMENT ( BLKmode ) ) ; size = ( SYMBOL_REF_DECL ( x ) ? DECL_SIZE ( SYMBOL_REF_DECL ( x ) ) : GET_MODE_SIZE ( BLKmode ) ) ; if ( align < ) return false ; } BLKmode return false ." GCC,riscv,718,"mode ) ; size = riscv_mode_param ( mode , ) ; } BITS_PER_UNIT" GCC,riscv,719,"; This function returns true if the variable 'x' is not a constant arithmetic operand, and if the mode size is larger than the units per word and the integer value of 'x' plus the mode size minus the units per word is not a small operand. Otherwise, it returns false." GCC,riscv,720,") is a function that initializes a variable argument list, specified by , for accessing the variadic arguments in a function." GCC,riscv,721,") return !riscv_naked_function_p (decl);""; return statement decl function. return statement indicates that the processing of function is completed and now the control will be returned to the calling function along with the return value, which in this case is the result of the logical negation of the function riscv_naked_function_p on the declaration being passed as an argument. This function is used to determine whether the function being referenced is a naked function or not. So, the last statement of this code snippet indicates that the result of this check will be returned to the calling function, indic" GCC,riscv,722,"NULL , 0 ) ; return expand_binop (GET_MODE (cmp0), sub_optab, cmp0, cmp1, NULL, 0);" GCC,riscv,723," ) ; ""execute the VXSAT instruction with the provided register value 'rv', then break.""" GCC,riscv,724," ) ; break ; ""vwrite_csr(enum RVV_CSR csr, unsigned ulong value) { switch (csr) { case RVV_VSTART: __asm__ __volatile__(""vssr.vstart %[value]"" : : [value] ""r""(value) : ""memory""); break; case RVV_VXSAT: __asm__ __volatile__(""vssr.vxsat %[value]"" : : [value] ""r""(value) : ""memory""); break; }""" GCC,riscv,725,"addr , ); * offset = XEXP ( addr , ); return true; } return false; } */ ""1""" GCC,riscv,726,"; * offset_ptr = INTVAL ( XEXP ( x , 0" GCC,riscv,727,"false; The code checks if the two offsets are equal, with the option to reverse the order if desired." GCC,riscv,728,"; return true;" GCC,riscv,729,"= ; In the last statement, the code should be ""bool reversed = reversed = (mem_op == 1 && mode == VOIDmode);""" GCC,riscv,730,"imm2 ); 0 output_operands[1] = copy_rtx(reg1); 1 output_operands[2] = copy_rtx(reg2); 2 output_operands[3] = copy_rtx(base1); 3 output_operands[4] = gen_rtx_CONST_INT(mode, imm2);" GCC,riscv,731,"reg2 ) ; ;" GCC,riscv,732,", ) ; operands[reg_op + ] = mem2;" GCC,riscv,733,") ) ; true" GCC,riscv,734,")); } , NUM_LIT > 0." GCC,arc,0," ); ""If CONDITION evaluates to true, macro NAME will be defined in the file pfile, with a value of the register number of the arc_tp architecture. TARGET_BIG_ENDIAN ? will be defined as if the TARGET_BIG_ENDIAN flag is present, and as otherwise.""" GCC,arc,1,"( ) ; endif ""builtin_define ( TARGET_BIG_ENDIAN ? : NULL ) ; endif""" GCC,arc,2,"builtin_assert (arc_tp_regno >= 0) ; builtin_define (TARGET_A2 ? ""ARC_HAS_ACC32"" : ""ARC_HAS_ACC16"") ; def_or_undef_macro (pfile, ""_ARC_HAS_ACCLMUL"", TARGET_BIG_ENDIAN) ; builtin_define_with_int_value (""ARC_LPCWIDTH"", arc_lpcwidth) ; builtin_define (TARGET_BIG_ENDIAN ? ""m_arc_endian = BIG"" : ""m_arc_endian = LITTLE"") ; if (TARGET_BIG_ENDIAN) {}" GCC,arc,3,"arc_ar c_r = builtin_assert (arc_tp_regno == arc_ar) ;" GCC,arc,4," ; ""builtin_define_with_int_value ( , arc_fp_regno ) ;""" GCC,arc,5,"BOOL ""END""" GCC,arc,6,") ; This code snippet checks a condition using the variable ""def_p"" and if the condition is true, it calls the function ""cpp_define"" passing in the variables ""pfile"" and ""name"". Otherwise, if the condition is false, it calls the function ""cpp_undef"" passing in the variables ""pfile"" and ""name""." GCC,arc,7,") ; } This code snippet defines or undefines a macro in a C++ file based on the boolean value passed to it." GCC,arc,8,") ) NUM_LIT *2 Explanation: The last statement will return the result of multiplying NUM_LIT by 2. This is indicated by the multiplication operator ""*"" and the usage of the NUM_LIT variable twice in the statement." GCC,arc,9,": case TYPE_BRCC_NO_DELAY_SLOT : case TYPE_BRCC_COND : return ; default : return -1 ; ;" GCC,arc,10,"false ; ""Check if the register number and the given numerical values are within the specified range and return a boolean value accordingly.""" GCC,arc,11,") ; emit_move_insn ( gen_rtx_REG ( SImode , DSP32R1 ) , reg0 ) ; } 0 { }" GCC,arc,12,"( REG_P ( operands [ ] ) ? : CONST_INT_P ( operands [ ] ) ? - INTVAL ( operands [ ] ) : ): ? -INTVAL (operands[]) : )" GCC,arc,13,"{ reg = gen_rtx_REG ( FPmode , ) ; mem = gen_frame_mem ( FPmode , stack_pointer_rtx ) ; XVECEXP ( insn , , indx ++ ) = gen_rtx_SET ( mem , reg ) ; XVECEXP ( insn , , indx ++ ) = gen_rtx_SET ( frame_pointer_rtx , reg ) ; RTX_FRAME_RELATED_P ( frame_pointer_rtx ) = ; } 0;" GCC,arc,14,"] , xop [ ] ) ) ; // The xop array is now populated with the operands from the original operands array, // adjusted for automatic increments and decrements, if necessary. The code snippet ensures that the xop array is populated with operands from the original operands array, adjusted for any automatic increments or decrements." GCC,arc,15,", , , mode ) ; } The last statement of this code snippet is ""gin_rtx_REG (SImode, REGNO(operands[] + i));""" GCC,arc,16,") { arc_update_end_of_function ( ) ; } " GCC,arc,17,") emit_insn_before(gen_nopv(), succ0); }" GCC,arc,18,"; } 1;" GCC,arc,19,") { return current_frame_info.total_size; }" GCC,arc,20,"true; The current instruction set condition code flag is set to true." GCC,arc,21,"*branch ); This function records the deletion of a branch in an ARCCCFSM (Augmented Radial Coordinate Communications Finite State Machine)." GCC,arc,22,"gmask ; return total_size ; } 4" GCC,arc,23,"TREE_VALUE ( args ) ) ; the tree string_literal was found." GCC,arc,24," ; 4" GCC,arc,25,") out_group, ""x%08"" PRINTF_INT32_FMT, VAL" GCC,arc,26,"imDir. Get chunk- ""Error: Could not find specified directory or file.""" GCC,arc,27,": next_must_be_target_label_p = TRUE ; scanbody = PATTERN ( this_insn ) ;" GCC,arc,28," ; 0 ; arc_punct_chars [ '$' ] = 0 ;" GCC,arc,29,"= << ( int ) ; break ; NUM_LIT" GCC,arc,30,"; It calls the arc_ccfsm_at_label function to set the FSM label at the specified prefix and label number." GCC,arc,31,", restored , ); ""final_scan_insn (XEXP (epilogue_delay, 0), file, 0, -1, NULL);""}" Compiler Type,Target,Idx,Code GCC,arc,32,"offset, ""8"" ) ; ""spill %d(%s),%s\n""" GCC,arc,33,"fprintf ( file , ) ; else { .... fprintf ( file , ) ;" GCC,arc,34,"); } 8" GCC,arc,35,"type ) ; return size > 0 ; } The last statement is ""return size > 0;""." GCC,arc,36,"LSHIFTRT : { *total = COSTS_N_INSNS(2); return true; }" GCC,arc,37,"; } continue;" GCC,arc,38,"; } ""The 'if' statement checks if the bit represented by and left-shifted by the value of regno are both set in the gmask variable. If they are not, the code within the curly braces is executed.""" GCC,arc,39,"GET_MODE_SIZE ( mode ) ; 2" GCC,arc,40,", nextarg ) } ) 3 && ( current_function_args_info & 3 ) )" GCC,arc,41,"CONST_DOUBLE && CONST_DOUBLE_OK_FOR_REG_P CONST_DOUBLE );" GCC,arc,42,"0 ; switch ( GET_MODE ( op ) ) { case word_mode: return 1; } } This code snippet checks if the operand is a memory location and if it is, then it returns 1." GCC,arc,43,"GET_MODE_BITSIZE ( mode )-1 ) ) ); This code snippet checks if the operation 'op' is a constant integer with a value greater than or equal to the size of the specified mode minus one." GCC,arc,44,"CONST_DECL && ( TREE_CODE( op ) == ) ) ); INTVAL (op) <= )" GCC,arc,45,") <= UINT32_MAX ) ; } UINT32_MAX" GCC,arc,46,"cc_reg ; >> reg and sets its value to ""NUM_LIT"" in the current mode ; sets the result of gen_rtx_COMPARE ( mode , x , y ) to cc_reg and returns cc_reg." GCC,arc,47,"return ; case GEU : return ; case LTU : return ; case LEU : return ; } return -1; } 0" GCC,arc,48,"op , ), Pmode ) ) { The code snippet will check if the expression stored in 'op' is valid, specifically if it is a valid addition statement in Pmode with both operands being non-memory registers." GCC,arc,49,"PRE_DEC: return -1;" GCC,arc,50,"} } return 1;" GCC,arc,51,": if ( use ) 1" GCC,arc,52,"op ) ) { return false; } This function is used to check whether the given operand, op, is a non-volatile and non-immediate memory operand in the specified machine mode, mode." GCC,arc,53,"; (code == LTU || code == GEU || code == GTU || code == LEU) { XEXP ( op , 1 ) ; }" GCC,arc,54,"COND_SET_NZ : last_insn_set_cc_p will be set to the value of current_insn_set_cc_p." GCC,arc,55,"op)) ; } 0" GCC,arc,56,"XEXP ( op , ) ) == REG) ) { The condition in the if statement checks if the variable 'op' is a plus operation, has the correct mode, and if the first operand is a register." GCC,arc,57,"== MEM ) ; } 1;" GCC,arc,58,"op ) == CONST_INT ) ; ""The code above checks whether the op variable is either a SYMBOL_REF, CONST, or CONST_INT.""" GCC,arc,59,": N_INSNS ( XEXP ( plus0 , ) ) ;" GCC,arc,60," , );" GCC,arc,61,"insn ) ; return prev_recog_memoized ( prev ) ; } 1. 0; 2. 1; 3. 2;" GCC,arc,62,"1 ) / UNITS_PER_WORD ; ... } The variable ""words"" is defined as the number of words needed to hold ""bytes"" bytes." GCC,arc,63,") ; NUM_LIT" GCC,arc,64,"/HOST_BITS_PER_WIDE_INT ) ) name , 4 ) ;" GCC,arc,65,", insn) insn; The last statement of the code snippet is ""insn;""." GCC,arc,66,") ) == CLOBBER || GET_CODE ( PATTERN ( insn ) ) == BARRIER ) : false) : The code checks whether the instruction is a non-jump instruction and if the pattern of the instruction is either a ""use"" or ""clobber"" code, or if the instruction is a jump instruction and the pattern is either ""clobber"" or ""barrier"" code, otherwise the statement returns false." GCC,arc,67,"to ATTRIBUTE_UNUNS ED ) { return true; }" GCC,arc,68,"to ATTRIBUTE_UNUSED ) { ""The 'can_eliminate' function determines if there are valid reasons to remove an arc between two given integers.""" GCC,arc,69,wi :: gu_lt_p GCC,arc,70,"; 1000" GCC,arc,71,3; } GCC,arc,72,"; frame_info -> reg_offset = reg_offset ; frame_info -> gmask = gmask ;" GCC,arc,73,"fn_type ; ""return value""" GCC,arc,74,") == nullptr ) return true ; it is not NULL_TREE or error_mark_node" GCC,arc,75,"error; ""return crtl -> error;"" " GCC,arc,76,") ; // This function is used to declare pretend arguments for the current function." GCC,arc,77,", XEXP ( u , ) , ( GET_MODE ( x ) , XVECEXP ( x , , ) ) ; reg_name and print_operand if ( GET_CODE ( x ) == PLUS && GET_CODE ( XEXP ( x , ) ) == CONST && ( REG_P ( gp = XEXP ( x , ) ) || ( GET_CODE ( u = XEXP ( x , ) ) == MEM && GET_CODE ( XEXP (" GCC,arc,78,"GET_CODE ( u = XEXP ( x , ) ) == UNSPEC */ There is a complex conditional statement that checks if the expression is a plus and whether the gp register holds the PIC offset table." GCC,arc,79,"flags ; } ""other""" GCC,arc,80,This code is checking if the register number is equal to the return address register for the current function's machine type. GCC,arc,81,"addr ) ) ;* } Note: This code snippet appears to be from a larger function involving frame stack manipulation in the GCC compiler. It is difficult to provide a precise answer without more context, as there may be multiple possible completions for the missing parts (e.g. the exact values of variables, the missing code blocks, etc.)." GCC,arc,82,"true ;> 2" GCC,arc,83,") { The ""if"" statement is checking if the value of ""piece"" is greater than the constant ." GCC,arc,84,"( ) ) frame_size_to_allocate (GEN_INT(first_offset)) ." GCC,arc,85,", gen_rtx_PLUS (, pat) ); The last statement of this code snippet is: ""pat = gen_rtx_SET ( VOIDmode , baseptr_rtx , gen_rtx_PLUS (, pat) );""" GCC,arc,86,NEXT_INSN GCC,arc,87,"var-obstack != NULL ; } ""The function arc_frame_pointer_required returns true if the var-obstack pointer in the current function (cfun) is not equal to NULL.""" GCC,arc,88,"const arc_closure_state *closure_state, int num_byte_registers, int return_value_type) { // This function determines whether an arc closure state requires a frame pointer or not based on the number of byte registers and the return value type." GCC,arc,89,"; ""this is an unused string""" GCC,arc,90,", words ) ; } NUM_LIT = 1" GCC,arc,91,"cprint with: cfun's print function." GCC,arc,92,"+= 1 ""the value does not match any existing string literals""" GCC,arc,93,"pred ) ) == SET)) The code is checking whether the successor of the current node is a doloop end instruction and the parent node is either a jump, call, or a set statement." GCC,arc,94,"( ) ; struct register_pass_info arc_predicate_delay_info = { pass_arc_predicate_delay_insns, ""ARC predicate delay slot filling"", 20, PASS_POS_INSERT_AFTER }; register_pass(&arc_predicate_delay_info); }" GCC,arc,95,"; The ""gcc_unreachable()"" statement ensures that the program does not reach any other statements after the if-else conditions, since the values for ""from"" and ""to"" do not match the previous conditions." GCC,arc,96,"machine -> frame_info . saved_regs_size ) ) ; This code returns the difference between the current total size of the frame and the sum of the pretend size, extra size, and saved registers size." GCC,arc,97,"arc_data_reg) ARC_BUILTIN_INTERRUPT_HANDLER);" GCC,arc,98,"; 1 1;" GCC,arc,99,"; } 1;" GCC,arc,100," << ( int ) TF_MODE ; else if ( GET_MODE_SIZE ( m ) == ) arc_mode_class [ i ] = << ( int ) OF_MODE ; else arc_mode_class [ i ] = ; break ; NUM_LIT << (int) O_MODE;" GCC,arc,101,: if ( GET_MODE_SIZE ( m ) <= ) arc_mode_class [ i ] = << ( int ) E_MODE ; else if ( GET_MODE_SIZE ( m ) == ) arc_mode_class [ i ] = << ( int ) F_MODE ; else if ( GET_MODE_SIZE ( m ) == ) arc_mode_class [ i ] = << ( int ) D_MODE ; else if ( GET_MODE_SIZE ( m ) == ) arc_mode_class [ i ] = GCC,arc,102,"return false ; if ( TREE_THIS_NOTHROW ( decl ) ) return true { if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == FUNCTION_DECL) { return true; //char } } else { return false; //char }" GCC,arc,103," ; The completed statement is: ""return as the default value.""" GCC,arc,104,"; ""GET_MODE_SIZE(mode) != 0""" GCC,arc,105,"; The default case is reached when none of the above cases apply." GCC,arc,106," ) ) == SYMBOL_REF && SYMBOL_REF_TLS_MODEL ( XVECEXP ( addr , , ))); ; GET_CODE ( XVECEXP ( addr , 1 , 0 ) ) == SYMBOL_REF" GCC,arc,107,"op, enum > machine_mode mode ) Returns true if op is a legitimate pseudo instruction operand for the specified machine mode, and false otherwise." GCC,arc,108,"Pmode , XEXP ( x , ) , inner ) ; " GCC,arc,109,") { int i = XINT ( addr , ) ; if ( i == ARC } 1" GCC,arc,110,"; } This code snippet returns a boolean value indicating whether the target supports LRA (Linear Register Allocation) or not." GCC,arc,111,";> Finally, the code snippet returns the current instruction (insn) if it is not a label and checks for special patterns such as ADDR_VEC, ADDR_DIFF_VEC, and SEQUENCE before returning NULL." GCC,arc,112,"[ ] , operands [ ] , neg_intval ); ret = output_jump ( , short_p ); The last statement is: ""ret = output_jump (NUM_LIT, short_p);""" GCC,arc,113,"fname ) ; jpg, ""example.jpg""" GCC,arc,114,"f1 ) , ) ; " GCC,arc,115,"asm_out_file ) { ""1) get_attr_length (insn) == WANT_LONG_LENGTH; 3) WANT_LONG_LENGTH; 6) 0;""" GCC,arc,116,") ) ) ""the type is not a numeric literal and either the tree code of the type's size is not an integer constant or the type is addressable.""" GCC,arc,117,") { <> return true;" GCC,arc,118,"return cl; else return NO_REGS;" GCC,arc,119,") The code checks if the given parameter is equal to either the CHEAP_CORE_REGS or WRITABLE_CORE_REGS constants." GCC,arc,120,"(); The last statement should be ""return val;"" indicating the end of the code snippet and the return of the value of the variable ""val""." GCC,arc,121,") return ; 16" Compiler Type,Target,Idx,Code GCC,arc,122,"afi -> args_size : 0 ); The code snippet returns the difference between the total size of the frame and the combined size of the frame's pretend size and arguments size if the save_return_addr flag is set, otherwise it returns 0." GCC,arc,123,"( ) ; & i2" GCC,arc,124,"1 ) ; } 1" GCC,arc,125,"; The return value of the function is false." GCC,arc,126,"offset ) ) ; addr = gen_rtx_POST_MODIFY ( Pmode , base_reg , GEN_INT ( offset ) ) ; } if ( epilogue_p ) { gcc_assert ( ! NEXT_INSN ( ) ) ; NEXT_INSN ( insn ) = ; PREV_INSN ( ) = insn ; MEM ( ) = mem ; } else { gcc_assert ( ! PREV_INSN ( ) ) ; PREV_INSN ( insn ) = ; NEXT_INSN ( ( offset ) ) ; } mem = gen_frame_mem ( SImode , addr ) ; gcc_assert ( gmask & ( << regno ) ) ; XVECEXP ( insn , , n_regs i ) = gen_rtx_SET ( VOIDmode , mem , reg ) ; } } The last statement of this code snippet is: XVECEXP ( insn , 0 , n_regs + 1 + num" GCC,arc,128,"(in_p) ) ""the conditional statement checks whether 'cl' is equal to either the LPCOUNT_REG or WRITABLE_CORE_REGS variable, and also verifies if 'in_p' is valid and of type MEM.""" GCC,arc,129,"case UNORDERED : return ; ONLY when the left says : __""> 's mode is SFmode or DFmode and corresponding targets are set, and one of the following conditions is satisfied: the operation is equal, not equal, unordered, or ordered, or greater than/less than, and can only be used in those scenarios." GCC,arc,130,has_ GCC,arc,131,"app, arc * arc ) { arc->default_type_attributes = app; }" GCC,arc,132,"; The value of the instruction should also be swapped in order to properly modify it with the adjusted address and offset." GCC,arc,133,", - 8 ); } This function returns the address with a constant value of -8 added to it, in the mode Pmode." GCC,arc,134," the condition checks if the mode variable is equal to V4SImode or V8HImode." GCC,arc,135,") { NUM_LIT = 0" GCC,arc,136,"pat , 0 , 0 ) ) : SUBREG ( GET_CODE ( pat ) == ASM_OPERANDS? SET_SRC ( XVECEXP ( pat , 1 , 0 ) ) : JUMP_LABEL ( branch ) ); pat = gen_rtx_fmt_mem ( dest, dest" GCC,arc,137,", )? : asavetree - The ""dest"" variable becomes equal to the X expression of the destination after the if-then-else statement is executed." GCC,arc,138,"REG : return ! call <0> ( uhoh, what do I return here? {*} is_regno_constant ( REGNO (operands[opno]) );" GCC,arc,139,"true ; } return false ; This code snippet returns a boolean value indicating whether the operands at the specified position (""opno"") are a SYMBOL_REF, CONST, or CONST_INT." GCC,arc,140," ""return value is false""" GCC,arc,141,"mode ) ; The variable ""size"" is assigned the value of the mode's size, determined using the GET_MODE_SIZE macro." GCC,arc,142,"&& rtx_equal_p ( pat , gen_rtx_fmt_ee ( GET_CODE ( pat ) , GET_MODE ( pat ) , pat0 , ) ) ) ; src1." GCC,arc,143,"[ ] ) ; } temp = reload_in_progress ? operands[] : gen_reg_rtx(Pmode);" GCC,arc,144," This code snippet loops through each sub-rtx in the array and performs the operation ""op"" on each one." GCC,arc,148,"src , unsigned int delta ) Moves a frame from the source (src) to the destination (dst) with an offset of delta." GCC,arc,149,"src )) ; ""to gen a new frame instruction using the generated rtx SET operation with the given modes and input operands.""" GCC,arc,150,tmp ; break ; defaultNOT SUPPORTED IN THIS CODE TYPE: A float point mode. GCC,arc,151,"llint sll, vectormd ______________> , int factor )" GCC,arc,152,"); ""rtx gen_mhi ( void ); Will be an unsigned integer generated by the program.""" GCC,arc,153,", stack_pointer_rtx); ""TARGET_BIG_ENDIAN is true if the TARGET_DEFAULT_BIG_ENDIAN macro is defined, and false otherwise.""" GCC,arc,154,"mode ) ; if ( ! pat ) { The code snippet converts an input operand to a different mode and emits a move instruction to ensure proper data alignment." GCC,arc,155,"] ) ; operands [ ] = pat ; } pat = XEXP ( operands [ ] , ) ; pat = address_optimize ( pat , mode ) ; operands[5] contains an optimized address in the specified mode." GCC,arc,156,""""" ) : ) ) ; , , ) ) ^ ( s1 -> code == SYMBOL_REF ? htab_hash_string ( NAME_POINTER_POINTED_TO_BY_SYMBOL_REF (s1) ) : ) ) ;" GCC,arc,157,"XEXP ( XVECEXP ( dest , , ) , ) ) ; } " GCC,arc,158,"= 0, count" GCC,arc,159,"); } } ""TREE_VALUE ( value ) = STRING_CST"", since that is the first argument of the ""TREE_VALUE"" function" GCC,arc,160,"[i]); This statement sets the value of the XVECEXP expression at indices and to a new register of mode SImode, using the gen_rtx_REG function." GCC,arc,161,"stack_pointer_rtx ) ; cfun->machine->frame_info.gmask = frame_pointer_needed;" GCC,arc,162,"( Pmode , stack_pointer_rtx ) ) ; ""?-4""" GCC,arc,163,"src_addr ) piece >= 0" GCC,arc,164,") ; ; pat = gen_rtx_INSN ( VOIDmode , pat ) ;" GCC,arc,165,"( value ) , )) { * no_add_attrs = true ; }" GCC,arc,166,") ; } If the instruction is a jump, check if there is a barrier instruction after it, and delete it if necessary." GCC,arc,167,"= ; arc_bc_list = ; ""arc_bc_list = MAX_INT"" or ""arc_bc_list = MAX_INT of STR_LIT""." GCC,arc,168,"; 0" GCC,arc,169,"base ) ); ""The code snippet handles the cases where the address is a symbol reference or a plus expression, extracting and assigning the base and index values if necessary, and asserting that the base is an object.""" GCC,arc,170,"= XEXP ( addr , 0) , NULL" GCC,arc,171,"DFmode , ) ; emit_insn ( gen_rtx_SET ( destHigh , gen_rtx_UNSPEC_VOLATILE ( Pmode , gen_rtvec ( , src ) , VUNSPEC_ARC_LR_HIGH ) ) ) ; emit_insn ( g" GCC,arc,172,"5 ) ; The add_int_reg_note function adds a new internal note to the jump instruction, setting the probability of taking the branch to be equal to 5." GCC,arc,173,"100; The last statement of this code snippet is a closing curly brace, indicating the end of the function definition." GCC,arc,174,"; ""The function will return true or false depending on the result of the operation.""" GCC,arc,175,") ; MEM_COPY_ATTRIBUTES ( pat , operands [ ] ) ; dump_move ( pat ) ; return true ; } } pat = arc_legitimize_address_0 ( operands [ ], operands [ ], mode )" GCC,arc,176,", mode , operands [ ] ) ; set_mem_attributes ( XEXP ( operands [ ] , ) , mode , operands [ ] ) ; if ( MEM_P ( operands [ ] ) && ??????) { operands [ ] = force_reg ( mode , operands [ ] ) ; }" GCC,arc,177,") { the set up cost for a N pattern return COSTS_N_INSNS ( );" GCC,arc,178,"sbitmap scalar_vector_sizes) { return scalar_vector_sizes; } This code snippet returns the scalar_vector_sizes variable." GCC,arc,179,"; return TARGET_PLUS_QMACW ? (NUM_LIT1 | NUM_LIT2) : NUM_LIT3;" GCC,arc,180,"TRUE ; else GET_CODE ( SET_SRC ( scanbody ) ) == JUMP_INSN } if (GET_CODE (SET_SRC (scanbody)) == SET) { if (GET_CODE (SET_DEST (scanbody)) == PC) { if (GET_CODE (SET_SRC (scanbody)) == JUMP_INSN) { next_must_be_target_label_p = TRUE; } else { fail = TRUE; } } else { fail = TRUE; } } else { fail = TRUE; } break;" GCC,arc,181," ) , ) ) == UNSPEC && XINT ( u , ) == ARC_UNSPEC_GOTOFF ) return XVECEXP ( u , , ) ; Otherwise, if none of the preceding conditions are met, the code will return null." GCC,arc,182,"( u , ) , arc_delegitimize_address_1 ( x , u ) ) ; If none of the previous conditions are met, the function returns a gen_rtx_PLUS expression with the mode of the input x, the value of XEXP(x, 0) as the first operand, and the value returned by the function arc_delegitimize_address_1(x, u) as the second operand." GCC,arc,183,"_rtx NULL;" GCC,arc,184,"gen_mc ( pat set ,set );" GCC,arc,185,"; register_pass ( & arc_ifcvt5_info ) ; } ""Not all required TARGET_* flags are enabled.""" GCC,arc,186,") ; } TARGET_NO_COND_EXEC = False; struct register_pass_info & pass_arc_ifcvt4_info = { pass_arc_ifcvt_4, ""ARC ifcvt 4"", 0, PASS_POS_INSERT_AFTER }; struct register_pass_info & arc_ifcvt5_info = { pass_arc_ifcvt_4->clone(), ""ARC ifcvt 5"", 1, PASS_POS_INSERT_BEFORE }; register_pass (&arc_ifcvt4_info); register_pass (&arc_ifcvt5_info);" GCC,arc,187,") DF_MODE ) ; << ( int ) Q_MODE" GCC,arc,188,CODE_FOR_dolo GCC,arc,189,") { return true 9 {return addend - offset < 9}" GCC,arc,190,", ) ; } } NUM_LIT" GCC,arc,191,"NTPOFF : case ARC_UNSPEC_GOTNTPOFF : case ARC_UNSPEC_LOCALPLTONLY : } UN { case LABEL_REF: return flag_pic && TARGET_MACHO; case SYMBOL_REF: /* A symbol ref is often a constant, but symbols in data sections are also a constant. */ return ! (XEXP (x, ) == x /* Generate a valid const when in constant section. */ || GET_CODE (XEXP (x, )) == CONST); } UN" GCC,arc,192,") && ( addr ) ( GET_CODE ( addr ) == CONST_INT ? INTVAL ( addr ) : addr ); }" GCC,arc,193," ) != UNSPEC_TLS_IE && ) { != UNSPEC_TLS_LE return true;" GCC,arc,194,"== orig_x ) return < TAS_ERR > ; arc_legitimize_address_1 ( new_x , oldx , mode ) ;" GCC,arc,195,", v ) ; 3" GCC,arc,196,"( label ) ) ; } The jump target if the current instruction is part of a doloop block is given by the label_rtx that is in the same basic block as the instruction." GCC,arc,197,": actually this code snippet is missing the last statement } else { . }" GCC,arc,198,"; - 0;" GCC,arc,199,"intval ; The value of the variable ""neg_intval"" is equal to the negative value of the integer value in the variable ""intval""." GCC,arc,200,"{ operands [ ) NUM_LIT = 1" GCC,arc,202," : ) ; emit_insn ( gen_rtx_SET ( dest , gen_rtx_UNSPEC_VOLATILE ( Pmode , gen_rtvec ( , emit_insn ( gen_rtx_SET ( destHigh , gen_rtx_CONST_INT ( ) ) ) ; emit_insn ( gen_rtx_SET ( destLow , gen_rtx_CONST_INT ( ) ) ) ; } else if ( state == destD4 ) { emit_insn ( gen_rtx_SET ( dest , gen_rtx_UNSPEC_VOLATILE" GCC,arc,203,") return 32;" GCC,arc,204,"x , ) , ) , mode , PLUS , , speed ) ) ; return true ; } return false ; This code snippet calculates the cost of a specific instruction, depending on various conditions such as target platform and instruction mode." GCC,arc,205,"1000; insn->recog_data.matches are very unlikely. }" GCC,arc,206,"probability ) ; The add_int_reg_note function adds a note to the jump instruction with the specified probability." GCC,arc,207,") ; operands [ ] = pat ; } } } The code snippet is checking for specific conditions before performing certain actions on a group of operands." GCC,arc,208," ] , temp, -2 operands[1] = arc_legitimize_pic_address(operands[1] , temp, GET_MODE(operands[2]));" GCC,arc,209,") ; The return value of this function is the FRAME_POINTER_REGNUM register in Pmode." GCC,arc,210,"gmask ; ""total_size""" GCC,arc,211,"var) The code is asserting that the control variable, ""crtl"", is a valid variable." GCC,arc,212,"{ if ( regno < FIRST_SAVED_PSEUDO_REG ) { regno = r + ( FIRST_SAVED_PSEUDO_REG - 1 ); } } } } ""This code snippet is used to ensure that the register number is within the valid range, specifically the range of FIRST_SAVED_PSEUDO_REG - 1 and the initial register number.""" GCC,arc,213,"plus_constant ( Pmode , stack_pointer_rtx , ra_offs ) ; cfa_adjust = adjust_address_nv ( & addr , UNITS_PER_WORD , Pmode ) ; } (, LINENO_11)" GCC,arc,214,", size , ) ; = 2" GCC,arc,215,"dst_addr , piece ) ; R: The final statement in this code snippet is incrementing dst_addr by the size of a single piece." GCC,arc,216," ) : the number of the target register, depending on the flag_pic and arc_tp_regno variables. " GCC,arc,217,"PRI ASM_OUT_FILE, ""ATTRIBUTE_PCS"", (TARGET_RF16 ? ""2"" : ""4""), (flag_pic ? ""0"" : ""4""), (arc_tp_regno != -1 ? ""-4"" : ""4""), (TARGET_NO_SDATA_SET ? ""0"" : ""4""), PRI" GCC,arc,218,"; ""'CONST_ATTR', attrs)""" GCC,arc,219,"true ; arg = TREE_VALUE ( args ) ; if ( TREE_CODE ( arg ) != INTEGER_CST ) { warning ( 1 , ""Argument must be an integer constant."" , name ) ; * no_add_attrs = true ; } } if ( TREE_CODE ( * node ) == VAR_DECL ) { tree fntype = TREE_TYPE ( * node ) ; if ( fntype && TREE_CODE ( fntype ) == POINTER_TYPE ) { tree attrs = tree_cons ( get_identifier ( ""__attribute__"" ) , NULL_TREE , TYPE_ATTRIBUTES ( fntype ) ) ; TYPE_ATTRIBUTES ( fnt" GCC,arc,220,"|| to == ARG_POINTER_REGNUM ) ) { return ( cfun -> machine -> frame_info . total_size - cfun -> machine -> frame_info -> pretend_size ) ; }" GCC,arc,221,"STACK_POINTER_REGNUM ) ) { The code is checking for a specific condition where both the from and to registers must match certain values. Specifically, it is checking if the from register is equal to FRAME_POINTER_REGNUM and the to register is equal to STACK_POINTER_REGNUM. If this condition is met, the code will return a value that is calculated using information from cfun and machine." GCC,arc,222,"false ; ""checking if the attribute is found or not and returning the result""" GCC,arc,223,"0; ""the value of NUM_LIT""" GCC,arc,224,"); } The code snippet checks if ""align_labels_log"" is less than """" and if so, sets the variable ""next"" to the next non-note and non-debug instruction after the instruction pointed to by ""label""." GCC,arc,225,"false ; ) {" GCC,arc,226,") return ; else { return ; } } NUM_LIT;" GCC,arc,227,"; 2" GCC,arc,228,"->machine ; return arc_verify_align ( insn , , machine-> ); : 0" GCC,arc,229,") , CONST1 )) ... op ; } 0" GCC,arc,230,") 1. ""2""" GCC,arc,231,"ARC_CC_NC ; gcc_unreachable ( ) ; } return ARC_CC_NC, if none of the above cases match." GCC,arc,232,"; break; } blink = decode_reg_name(dash + last);" GCC,arc,233,") ; pat = arc_legitimize_address_0 ( pat , pat , mode ) ; if ( pat ) { pat = change_address ( operands [ ] , mode , pat ) ; MEM_COPY_ATTRIBUTES ( pat , operands [ ] ) ; operands [ ] = pat ; } The last statement is ""MEM_COPY_ATTRIBUTES(pat, operands[]);""." GCC,arc,234,", 0 ) , XEXP ( x , 1 ) ) ) the first expression of x is equal to the second expression of x." GCC,arc,235,", get_frame_register () ); This function returns the value stored in the current frame register, converted to an rtx value of the Pmode (processor mode) for the ARC architecture." GCC,arc,236,", ( MEM (tmp_reg_addr, QImode) | MEM (tmp_reg_addr + 6, QImode) | MEM (tmp_reg_addr + 4, QImode)), offset," GCC,arc,237,"= ; 1 gmask |= 1 << regno ;" GCC,arc,238,"var_size ; extra_size + reg_size + pretend_size." GCC,arc,239," ) arc_regno_reg_class [ IPLR_REG ] = GENERAL_REGS ; NO_REGS ; NO_REGS" GCC,arc,240,"; NUM_LIT" GCC,arc,241,") ; -1" GCC,arc,242,"PASS_POS_INSERT_AFTER } ; register_pass ( & arc_predicate_delay_info ) ; } PASS_POS_INSERT_BEFORE } ; register_pass ( & arc_predicate_delay_info ) ; } // end of snippet" GCC,arc,243,"target_default ) { spicy arc_punct_chars [ ':' ] = ; arc_punct_chars [ ';' ] = ;" GCC,arc,244,"; This code snippet checks if the given RTX expression, ""x"", is a valid modified operand in the target machine environment." GCC,arc,245,"( ( x ) , ) , ) ) ) { " GCC,arc,246,"> ) && ) ) ;} case 32: firq_auto_save_p &= ( ( regno < 32 ) || ( ( regno > 63 ) && ( regno < 96 ) ) || ( ( regno > 127 ) && ) ) ; }" GCC,arc,247,"; } 4" GCC,arc,248,"; NUM_LIT = 0" GCC,arc,249," ) ; ""The value of regno must be different than the numerical literal in return address register number.""" GCC,arc,250,") ; -1;" GCC,arc,251,"; } True." GCC,arc,252,", ) ) ; ; end_reg = NUM_LIT" GCC,arc,253,"regno ) ) != } , mask is not equal to zero" GCC,arc,254,") ; offset = ; } = 31;" GCC,arc,255,"i ) ) == ) - 31" GCC,arc,256,"; break ; size % UNITS_PER_WORD" GCC,arc,257,"; } 1" GCC,arc,258,"{ pat = change_address ( operands [ ] , mode , pat ) ; MEM_COPY_ATTRIBUTES ( pat , operands [ ] ) ; = pat ; ""operands[0] is the address at which to perform the specified operation.""" GCC,arc,259,"arg [ ] , arg [ ] ) ; ""return GEN_FCN (icode) (arg[4], arg[5], arg[6], arg[7], arg[8]) ;""" GCC,arc,260,"; NUM_LIT or any active non-debug instruction except NOTE, UNSPEC_VOLATILE, or PARALLEL instructions.""" GCC,arc,261,") ; `pat` is a pointer to a tree node, `decl` is a variable of type `tree`, `attrs` is a variable of type `tree`, `decl` is used to obtain the type of the `pat` node, `lookup_attribute` is a function used to check if an attribute is present in the given attribute set, `name` is a string literal, `sec` is a pointer to an `arc_jli_section` struct, `new_section` is a pointer to an `arc_jli_section` struct, `xmalloc` is a function used to allocate memory, `gcc_assert" GCC,arc,262,"sec 0" GCC,arc,263,"reg_alloc_order ) ) ; } This function adjusts the order in which registers are allocated, starting with the default allocation order and potentially changing to a size-optimized allocation order if the ""optimize_size"" flag is set." GCC,arc,264,"{ ARC_REG_R4, ARC_REG_R5, ARC_REG_R6, ARC_REG_R7, ARC_REG_R8, ARC_REG_R9, ARC_REG_R10, ARC_REG_R11, ARC_REG_R12, ARC_REG_R13, ARC_REG_R14, ARC_REG_R15, ARC_REG_R16, ARC_REG_R17, ARC_REG_R18, ARC_REG_R19, ARC_REG_R20, ARC_REG_R21, ARC_REG_R22, ARC_REG_R23, ARC_REG_R24, ARC_REG_R25, ARC_REG_R26, ARC_REG_R27, ARC_REG" GCC,arc,265,"current_function_call_type; return fn_type == FUNCTION_CALL_INDIRECT; } This function returns a boolean value indicating whether or not stack slots should be allocated for arguments based on the current function call type." GCC,arc,266,"; 1" GCC,arc,267,", const1_rtx ) ; } ""ARC_TEMP_SCRATCH_REG"" );" GCC,arc,268,"; } modes->quick_push(V4SImode);" GCC,arc,269," ) { return true; } because there is no code provided within the function, it is impossible to determine the branch size, so the function always returns true." GCC,arc,270,"is_decl , const src_t src_info ) returns a tree for the given id, indicating whether it is a declaration or not, using the provided source information." GCC,arc,271,"_insn = emit_return_insn ( ret ) ; true" Compiler Type,Target,Idx,Code GCC,arc,272,"mode) ""unless the machine mode is explicitly set to allow for constant memory.""" GCC,arc,273,"true ;} arc_cannot_subsitute_mem_equiv_p This function will always return true, indicating that the given argument is not suitable for substitution in a memory register." GCC,arc,274,"0 ; 4" GCC,arc,275,"; : 0" GCC,arc,276,"cfun -> machine -> frame_info . interrupt) ) ; a constant value NUM_LIT representing the frame info's total size" GCC,arc,277,"NOTE_INSN_FUNCTION_BEGINS ); machine->frame_info.size_override>" GCC,arc,278,"; 0" GCC,arc,279,", )) ""The state variable is equal to the NUM_LIT constant and the target label matches the given number, and the prefix value matches the given input string.""" GCC,arc,280,"2); The code snippet ends with a check to see if the condition for the state machine's pre-scanning has been initialized and the conditional execution point is set to 2." GCC,arc,281,"cfun -> fsm )); <\s> ""The function arc_ccfsm_cond_exec_p checks if the prescan is initialized and if the condition of the finite state machine is met.""" GCC,arc,282,"get \""expressions"") address (PATTERN (insn) ) !=SIMM_HIGH) ) { arc_ccfsm_at_branch (GET_CODE (PATTERN ( insn ) ), state ); }" GCC,arc,283,"ARC_CCFSM_STATE_LOOP_ACTIVE ) { NUM_LIT(1)" GCC,arc,284,"_cc, arc_started_arc - > branch - > record); That the branch has been successfully deleted from the CCFSM record." GCC,arc,285,"return true ; return ) ;" GCC,arc,287,"== ) return false ; - 1" GCC,arc,288,"false ; The last statement of this code snippet is: ""return false ;""." GCC,arc,289,"1 ; } ""This function sets the value of the 'unalign' variable to 1 for the current machine being used by the 'cfun' function.""" GCC,arc,290,"->unalign_delete( unalign -> ); } The last statement is: ""Delete the unaligned data in the current function's unalign list.""" GCC,arc,291,"( extra_plus_reg_size , ) ; NUM_LIT << 8" GCC,arc,292,"lower [ fn_type ] ; 3, "".i_call"", "".i_call_value"", "".firq""" GCC,arc,293,"end_reg ; frame -> millicode_end_reg" GCC,arc,294,"; - ( crtl -> is_leaf == ) ) < closing parentheses to complete code >" GCC,arc,295,") ) At least one of the attribute lookup results must be true in order for the following code to be executed." GCC,arc,296,") ; gcc_assert ( ARC_LAST_SIMD_DMA_CONFIG_REG == ) ; for ( i = ARC_FIRST_SIMD_DMA_CONFIG_REG ; i <= ARC_LAST_SIMD_DMA_CONFIG_REG + ; i ++ ) arc_regno_reg_class [ i ] = SIMD_DMA_CONFIG_REGS ; } ""arc_regno_reg_class [ i ] = VIRTUAL_REGISTER;""" GCC,arc,297,"; ) 1 ;" GCC,arc,298,"; " GCC,arc,299,", reg ); " GCC,arc,300,") ; ""the number of machine registers allocated to the specified mode""" GCC,arc,301,"DImode , regno ) ; GET_MODE_SIZE ( mode ) != UNITS_PER_WORD" GCC,arc,302,"; 0" GCC,arc,303,") ; The frame size must be equal to or higher than the specified number of literals." GCC,arc,304,") { cout << ""You have successfully registered for the ARC's Technical Program!""; }" GCC,arc,305,"{ ""ubl_data""" GCC,arc,306,"== 0; regno++ ) { rmask" GCC,arc,307,"( << regno ) ;return gmask == rmask; } 15; 1 << regno; 1" GCC,arc,308,"If none of the previous conditions evaluate to true, then the function will return false." GCC,arc,309,The switch statement ends here. GCC,arc,310,"; > 2" GCC,arc,311, x = 0 GCC,arc,312,") { gen_rtx_NOT ( SImode , val ) } gen_rtx_NOT ( SImode , val) ;" GCC,arc,313,"exec_file, name ) ; fprintf ( asm_out_file , """" ) ;" GCC,arc,314," ) "";""" GCC,arc,315,") , , TARGET_SPLIT_HOTFIX_SIMPLE_COPY , TARGET_SPLIT_HOTFIX_DIST_CALL_SPLIT , TARGET_HOTFIX_CALL_FRAME_NOT_REQ );" GCC,arc,316," , sizeof ( arc_ltimode_t ) ) ; 0 );" GCC,arc,317,"(const target_info& tinfo, const mips_option_values& options) We would __check the target_info and the mips_option_values objects to determine__ if the arc frame pointer is needed for the specified target and options." GCC,arc,318,");} ...checks whether a frame pointer is needed by returning the result of the logical OR operation between the variable ""frame_pointer_needed"" and the ""calls_eh_return"" value of the ""ctrl"" structure." GCC,arc,319,"opt_calls ; return opt_calls; " GCC,arc,320,"with calls_vla; return cfun -> calls_alloca || crtl -> with calls_vla || cfun -> calls_temp_vars;" GCC,arc,321,"; } ""instruction successfully completed with no arguments.""" GCC,arc,322,") { i = NUM_LIT;" GCC,arc,323,") { the lookup_attribute (attrs) has a return value of true or false, and the code snippet will continue to execute if the attribute is not found." GCC,arc,324,"attrs ) ) return false ; } The if statement checks if the attribute is found in the given tree type and returns false if it is found." GCC,arc,325,", regno ) ; The last statement of this code snippet returns a generalized rtx register with the specified mode and register number." GCC,arc,326,"= get_seq_insn ( ) ; LT" GCC,arc,327,"; ""In this code snippet, if the TREE_CODE of the argument is not INTEGER_CST, a warning is issued and the variable no_add_attrs is set to true. Then, if the TREE_CODE of the current node is VAR_DECL, the function type is retrieved and if it is a POINTER_TYPE, a new attribute is added to the type attributes. Finally, the function returns the assigned string literal.""" GCC,arc,328,"NULL); } ""This code snippet checks if the code of the given node is not equal to FUNCTION_DECL and if so, it triggers a warning with the string and no additional attributes.""" GCC,arc,329,"AND_EXPR ) { return NULL_TREE ; } else { * node = fold_binary ( TRUTH_OR_EXPR , error_mark_node , no_add_attrs ) ; return error_mark_node;" GCC,arc,330,"1 ; } ""This code checks whether the provided node is a declaration and if its tree code does not match that of a type declaration.""" GCC,arc,331,") ; } returns true if the machine mode is allowed for the given ARC hard register number, otherwise it returns false." GCC,arc,332,", enum machine_mode ) - static bool arc_hard_regno_mode_ok ( unsigned int, enum machine_mode ) { return true; }" GCC,arc,333,"M 128 128" GCC,arc,334,NEXT_INSN ( insn ) ; if ( JUMP_P ( next ) && IN_RANGE ( & NEXT_INSN ( GCC,arc,335,"] = ; if ( TARGET_DPFP_FAST_SET || TARGET_DPFP_COMPACT_SET ) Unknown flag" GCC,arc,336,"TARGET_ARC_PIE_EXPLICIT_RELRO arc_multcost = COSTS_N_INSNS (flag_pic ? 1 : LOCAL_SIZE (SET_ARCH_INFO) ) ;" GCC,arc,337,"rtx) ; Rtx is a composite data type used to hold various expressions in GCC." GCC,arc,338,"""Invalid register conversion"" ); (cfun -> machine -> frame_info.reg_size)" GCC,arc,339,"false The variable init_machine_status is set to false initially." GCC,arc,340,") { ; }" GCC,arc,341,"labelno ) ; } This code snippet calls the function arc_ccfsm_at_label with the given prefix, label number, and the current cfun object." GCC,arc,342,") return false ; } ""acc_p"" The statement should be: ""return true ;""." GCC,arc,343,"( decl ) ; if ( * name ) { if ( strcmp(name, ""N_STR_LIT"") num ) ""SECTION""" GCC,arc,344,"sym_ref ) ) ); The statement checks if the sym_ref is a long call, or if the target long calls are set and sym_ref is not a short call and not a medium call." GCC,arc,345," The function will return true if the declaration has an attribute of the specified string literal, and will return false otherwise." GCC,arc,346,"attrs ) ) declarator " GCC,arc,347,"( sym_ref ) ) , sym_ref );" GCC,arc,348,". log < ? : ; return : ? 0;" GCC,arc,349,") ; if ( ) return true ; } return false;" GCC,arc,350,": return TARGET_SISUC_DMPY ; } ""MAX""" GCC,arc,351,"( addr , , ) ) != REG ) return false return true;" GCC,arc,352,"mode ); return new_x;" GCC,arc,353,"gen_rtx_SYMBOL_REF( VOIDmode , orig_x ); The rest of the code determines if the new address is legitimate and if it is, returns it, otherwise it returns a symbol reference to the original address in void mode." GCC,arc,354,"( Pmode , gen_rtx_CONST (NUM_LIT); offs - upper)); } else if (GET_CODE(addr) == SYMBOL_REF && !SYMBOL_REF_FUNCTION_P(addr)) x = force_reg(Pmode, gen_rtx_CONST(Pmode, inner));" GCC,arc,355,"; XINT ( addr , ) ;" GCC,arc,356,"; If the specified conditions are not met, the function will return false." GCC,arc,357,"tmp ) ; return gen_rt ""Tlsmodel_global_dynamic_model""" GCC,arc,358,"addr ); In the last case, the code snippet will return the sum of the thread pointer register's value and the offset of the specified TLS variable." GCC,arc,359,"false; } This function returns a boolean value of false." GCC,arc,360,") ; } If is equal to 1, then the function will return 1." GCC,arc,361," && GET_MODE_SIZE(mode1) < GET_MODE_SIZE(mode2)) ""both mode1 and mode2 are integers but mode1 is smaller in size than mode2.""" GCC,arc,362,"( insn ) && prev active_insn \= ainsn ) )&& return active delay slot} return false if flag_delayed_branch is not set, if insn is not a nonjump instruction with a USE code, if the following active instruction is a SEQUENCE or a non-return nonjump instruction, if arc_attr_type of the following instruction is not equal to TYPE_RETURN, and if TARGET_PAD_RETURN is set and there is no active instruction before insn or there is an active instruction before insn that is not the same as prev_active_insn. Otherwise, return true for the presence of an active delay slot." GCC,arc,363,... ret = 1; GCC,arc,364,"operands [ ] 128>, len ) ;" GCC,arc,366,". type ) ) ; // The statement to check if the type of the argument is not NUM_LIT } NUM_LIT" GCC,arc,367,"))) { The last statement of this code snippet is ""the function returns true if the argument's type is not a number literal and either the size of the type is not an integer constant or the argument is addressable, and false otherwise.""" GCC,arc,368,"gen_s390_atomic_diag ()); } ""We need to emit a S390 atomic diagnostic instruction when the given memory model requires an atomic barrier and the barrier is not already present.""" GCC,arc,369,"cond ) ) ; The last statement of this code snippet is: }" GCC,arc,370,"; } This code snippet returns the register class that is preferred for reloading the given register." GCC,arc,371,"reg_class , bool ) ; Returns the preferred class for reloading an operand of the given instruction, taking into account any potential register constraints or aliases." GCC,arc,372,") { case ZImode: case <@\ans{HImode}@>: return <@\ans{SImode}@>; } } @> SImode" GCC,arc,373,"in , 1 ) ) && XINT ( XEXP ( in , 1 ) , ) != 0 ); 1 2[0] != 0 );" GCC,arc,374,"_INT : { fputc ( 'q' , file ) " GCC,arc,375,"reg from , reg_class_t to_class , reg to ) {return REGNO (from) != REGNO (to) && REGNO (from) < !REG_DEAD ? 1 : 0 }; This statement checks if the register being moved from and to are different and if the from register is not dead, then it returns 1. Otherwise, it returns 0." GCC,arc,376,"; 1" GCC,arc,377,"CC_ZNmode , CC_REG ) ; ""Informal Summary: This code performs several checks and operations on designated operands in order to generate and configure a specific kind of rtx instruction. If certain conditions are not met, the code will continue to the next instruction.""" GCC,arc,378,"); } This function is called to reorganize loops and allows for loop parallelization." GCC,arc,379,") ; 0" GCC,arc,380,"regno ; -1" GCC,arc,381,") ; NUM_LIT" GCC,arc,382,"; else return expand_builtin_return_addr ( op0 ) ; } NUM_LIT is the expected number of return addresses that the function should return." GCC,arc,383,") ) = ; } , off >= " GCC,arc,384,") { emit_insn ( gen_rtx_SET ( gen_rtx_REG ( + regno ) , gen_rtx_CONSTS ( , TARGET_ARCH ) ) ) ; } frame_has_return_addr = ; 1. (regno + ((gmask >> regno) & 1)), gen_rtx_CONST_INT (0)" GCC,arc,385,"save_mode , i ); continue;" GCC,arc,386,"( gmask & ( << i ) ) < ) { The statement should be ""gmask = gmask & (~(1UL << i));""" GCC,arc,387,"in statement: This snippet returns the input 'in' of a 'machine' to a continuous function 'cfun'." GCC,arc,388,"; The last statement of this code snippet is: 0;" GCC,arc,389,"BUILD. - 2" GCC,arc,390,"; NUM_LIT4 ;" GCC,arc,391,") ; } { NUM_LIT }" GCC,arc,392,"reg , mem ) ) ; 1. ) 1. Adding the missing argument ""0."" 2. Adding the missing argument ""0""" GCC,arc,393,return CC_EQmode ; case LE : case UNGT : case GE : case UNLT : return ; default : gcc_unreachable ( ) ; } CC_Lmode GCC,arc,394,") ; } } ""first_anon_arg)""" GCC,arc,395,"ARC_CC_LT : return False ; } NUM_LIT NUM_LIT" GCC,arc,396,") ; NUM_LIT" GCC,arc,397,"insn_info ) ; if (is_short) { return s_tmpl; } else { return l_tmpl; }" GCC,arc,398,"; The arc_spill_class function returns the GENERAL_REGS register class." GCC,arc,399,"( , ) ) ) { xop [ i ] = adjust_address ( XEXP ( , ) , , ) , VOIDmode, , , , ) ; } else { xop [ i ] = XEXP ( , ) ; } } The last statement of this code snippet is ""}"" which closes the conditional statement and the for loop." GCC,arc,400,") ) ; 1) 1" GCC,arc,401,"false ; 1. ""and the function successfully concludes.""" GCC,arc,402,"consumer ); } The code snippet checks for ARC architecture and tune and returns true if there is a store address hazard between the given producer and consumer instructions." GCC,arc,403,")) < /s> ) { < /s>" GCC,arc,404,"( x ) ) : false ) ; This function checks if the symbol referenced by the given rtx is bound to the local machine." GCC,arc,405,"SYMBOL_REF_DECL ( x ) ) : targetm . symbolic_operand_failure ( x ) ) ; If x is a symbol reference declaration, check if it is bound locally by the target machine. Otherwise, return an error message for a failed symbolic operand." GCC,arc,406,"( next ) ) == SEQUENCE ) ; ""If there is a next instruction, return true if it is not a jump table data instruction or if its code is a sequence.""" GCC,arc,407,"NEXT_NON_NOTE ( label ) ) ; ""The 'next' variable is assigned the next non-note instruction after the label.""" GCC,arc,408,"1 s} This statement toggles the value of the unalign variable in the machine struct." GCC,arc,409,"= true ; This code snippet toggles the unaligned state of the machine to be true." GCC,arc,410,"up = *lo ; For each iteration, assign the value of *lo to *up." GCC,arc,411,"note , ) <= arc_unalign_prob_threshold ) } TARGET_UNALIGN_BRANCH" GCC,arc,412," ) ) <= ""A Constant value, typically 0, indicates whether or not the branch is unaligned when the machine is built"". 0" GCC,arc,413,"))) ""return gen_rtx_CONST ( Pmode , gen_rtx_UNSPEC ( Pmode , gen_rtvec ( ops )))""" GCC,arc,414,", __USE_DEFAULT_PIECES_INFRASTRUCTURE()" GCC,arc,415,": return true; } }" GCC,arc,416,"); The function returns a boolean value indicating whether the function has a warning attribute or not." GCC,arc,417,"case PRE_DEC : { // End of the function" GCC,arc,418,", ) == pc_rtx ? GET_CODE ( dest ) : ) ; XEXP ( dest , 0 ) Explanation: The last statement of this code snippet would be ""0)"". This expression is used to access the first subexpression of the destination rtx." GCC,arc,419," == 0 ? : " GCC,arc,420,"false } missing arguments" GCC,arc,421,", m_function, m_pass_ifcvt &arc_pass );" GCC,arc,422,": return (align <= 2) ;" GCC,arc,423,", ? ); } return simplify_gen_subreg ( DImode, in, TImode, ?);" GCC,arc,424,"op0 , op1 ); } ""which takes in an rtx code, op0, op1, and op2 and uses the gen_rtx_fmt_ee function to generate an rtx expression with a data type of SImode.""" GCC,arc,425,") ; This code snippet declares a function that generates and emits an instruction of type SImode based on the provided operands and shift code." GCC,arc,426,"{ return dest; }" GCC,arc,427,", original_x, offset ) ) ; (NUM_LIT) == 0 ) ; if ( ! offset ) return NULL_RTX ; return frame_move ( reg , plus_constant ( Pmode , original_x, offset ) ) ;" GCC,arc,428,"rtx, BBmap ) 7. 7; return frame_insn ( rtx, BBmap )" GCC,arc,429,"offset ) ) NUM_LIT = GEN_INT ((-1 * offset)) NUM_LIT = GEN_INT ((offset))" GCC,arc,430,") ) + offset ; """"" GCC,arc,431,") ; size, indicating the number of bytes to be moved from the register to the stack." GCC,arc,432,"} frame_size." GCC,arc,433,"GEN_INT ( offset ); } The addition of the offset to the stack pointer RTX is returned." GCC,arc,434,"es ; } The statement returns the value of the variable flag_delayed_branches." GCC,arc,435,") generates an rtx covering all invalid arguments for the ACC1 instruction." GCC,arc,436,": 0 , 0 ); } The statement should return 0 when the target is big endian, and a numeric literal otherwise." GCC,arc,437," ) { ""offsets[0] != offsets[1] and (gap - offsets[0] > gap - offsets[1])""" GCC,arc,438,( base ) ) return false; GCC,arc,439,"&align=align & ~ ~ ~(BITS_PER_UNIT ALIGN_MASK)~" GCC,arc,440,") ) ; return XEXP ( x, ); } The last statement should be: ""return XEXP ( x, GET_CODE ( x ) );""." GCC,arc,441,"= 1 ; The last statement sets the label of the previously emitted insn to the starting label of the loop and updates the number of uses of the starting label to 1." GCC,arc,442,"!= 0xdead ) ; The code snippet returns the value of the register `reg` if it is a valid register, otherwise it returns `NULL_RTX`." GCC,arc,444,"NULL_RTX ; XVECEXP ( PATTERN ( insn ) , 0 , 1 )" GCC,arc,445," : break ; case : if ( ! ( lpcount < ) ) { break ; } " GCC,arc,446,") ; The condition of the if statement evaluates the type of node at position in the pattern vector of the current instruction." GCC,arc,447,"false ; NUM_LIT = 0" GCC,arc,448,") { return false;" GCC,arc,449,"*ctxt ) returns a new ARC instruction parallel if-conversion optimization pass." GCC,arc,450,", gate ) ; ""This function creates a new instance of the pass_arc_ifcvt class and initializes it with the given context and gate.""" GCC,arc,451,"m); This code snippet returns a new pass_arc_predicate_delay_insns object with the input variable m." GCC,arc,452,"; } = 0" GCC,arc,453,"; ...the function will return NULL." GCC,arc,454,"; "" is not equal to NOTE_INSN_BASIC_BLOCK_P ( insn );" GCC,arc,455,"rt ) ; ""t2 = REGNO (rt2). """ GCC,arc,456,"rtI -1" GCC,arc,457,") } ""cfun->machine->unalign = 0""" GCC,arc,458,"; } } The last statement would be: ""fprintf (file, ""short suffix matched\n"");""" GCC,arc,459,") ; 3" GCC,arc,460,", arg ) ; } } EINVAL; 0; LONG_MIN; LONG_MAX; 1; ""invalid value for MRGF banked register option""" GCC,arc,461,") ) ; 1. > true" GCC,arc,462,">; We are checking if the operand contains a memory location, and if so, we are storing it in the temporary variable ""tmp"" and returning false to indicate that the operation was successful. Otherwise, we continue to check if the operand is a symbol reference and if it has a Thread Local Storage (TLS) model, we legitimize the address by calling ""arc_legitimize_tls_address"" function. If the operand is not a symbol reference or does not have a TLS model, we call ""arc_legitimize_pic_address"" function to legitimize the address. Finally, we check if the operand is a constant and if it" GCC,arc,463,"Pmode ) ))) This code snippet adds a register note to update the value of the CFA adjusting rule, setting the stack pointer register to the current stack pointer value minus the size of a word in the correct mode." GCC,arc,464,"false ; ""1""" GCC,arc,465,"QImode ) " GCC,arc,466,""""" ; ;" GCC,arc,467,"++) p != 0" GCC,arc,468,") ( ) getDTORSize()" LLVM,NVPTX,0,") - 1 ) * FuncTy -> getPointerAddressSpace ( ) + ; ""implicit offset""" LLVM,NVPTX,1,"createMyModule() { return new MyModule; } This code snippet creates a new MyModule object and returns a pointer to the newly created object." LLVM,NVPTX,2,"s(); It creates a new GlobalOffsets instance with Integer as the key type and Object as the value type." LLVM,NVPTX,3,"const = 0 Returns the name of the pass." LLVM,NVPTX,4,"ImplicitOffsetType , Builder . getUsed -> () , , , ); , 0);" LLVM,NVPTX,5,"; EntryPointMetadata is created with assert and then the newly created ImplicitOffsetIntrinsic is erased from its parent." LLVM,NVPTX,6,"key); ...with the given key." LLVM,NVPTX,7," (accessor); This statement returns a new LocalAccessorToSharedMemory object initiated with the specified accessor." LLVM,NVPTX,8,"Changed ; the index of the operand to be replaced in the replaceOperandWith function call. " LLVM,NVPTX,9,"; " LLVM,NVPTX,10,"; ++ Current ; } Pool.size()" LLVM,NVPTX,11,"( Str ) ; The string variable ""Str"" is added to the end of the ""Pool"" vector." LLVM,NVPTX,12,"Pass(); InstructionSelection return new InstructionSelectionAllocaHoistingPass(); " LLVM,NVPTX,13,"override { return ""ForgetSpeculationPass""; __ } }" LLVM,NVPTX,14,"AU){ AU.setPreservesAll (); }" LLVM,NVPTX,15,; } The string literal of the pass's name LLVM,NVPTX,16," ""AllocaHoisting""" LLVM,NVPTX,17,"F, bb, AI, DT); Method called: allocate return new allocateAllocaHoisting (F, bb, AI, DT); " LLVM,NVPTX,18,"< GlobalValueAnalysis data... ... by adding the required DataLayoutPass and preserving the GlobalValueAnalysis data." LLVM,NVPTX,19,"( firstTerminatorInst ) ; } The statement to complete: ""This code snippet moves any AllocaInst instruction that has a ConstantInt array size before the first Terminator instruction in the function.""" LLVM,NVPTX,20,"> ( ) ; AU . addPreserved < DivergenceAnalysis > ( ) ;" LLVM,NVPTX,21,PostOffice LLVM,NVPTX,22,"( ) ; This code snippet is adding the required TargetData and preserving the MachineFunctionAnalysis in the AnalysisUsage object." LLVM,NVPTX,23,".class ""by adding the MachineFunctionAnalysis.class value to the AU.addPreserved array.""" LLVM,NVPTX,24,"const override; This function is used to get the analysis usage of a particular object and is overridden from the base class." LLVM,NVPTX,25,.BARRIER -a instruction.arc-arch LLVM,NVPTX,26,") ; } This function is used to override the AnalysisUsage class to add the required DataLayoutPass." LLVM,NVPTX,27,"const PassInfo *pi) {return pi->getName();}" LLVM,NVPTX,28,"const char * bool isConnectToServer, { if (isConnectToServer) { return ""Connected to server""; } else { return ""Failed to connect to server""; }" LLVM,NVPTX,29,"( ) . convertToDouble ( ) ; ptr = ( unsigned char * ) & float64 ( this line will converte a float to a double value and then convert it to a 64 bit integer and store it in a buffer named aggBuffer. )" LLVM,NVPTX,30,"; NUM_LIT = gv->getParent()" LLVM,NVPTX,31,"] gv_array ; i = 0;" LLVM,NVPTX,32,"; ""Adds a blank line and records the filenames for M and returns false.""" LLVM,NVPTX,33,"<< ""<<<"" the value of the last function parameter is output to the string literal." LLVM,NVPTX,34,", e , O ) ; : O << "";\n"" ;" LLVM,NVPTX,35," ; break ; } } } } = 4 = ""<< align << "" << This code prints the alignment and size of the parameters." LLVM,NVPTX,36,"Inst ) ; } the ISA for the NVIDIA PTX architecture." LLVM,NVPTX,37,"( ) ) ) ; Assert that the statement is a valid file and store the filename, directory, and full path in variables. If the filename is not found in the filenameMap, return. If llvm::InterleaveSrcInPtx is true, emit the source in the current location. Create a temporary stream and output the filename, line number, and column number into it, then emit the raw text." LLVM,NVPTX,38,", fileName ) ; ""The scope is valid and is a type of scope""" LLVM,NVPTX,39,"O ) ; }" LLVM,NVPTX,40,"HalfTyID : return ; 128, ""Int""" LLVM,NVPTX,41,"Expr ) ; " LLVM,NVPTX,42,"getOperand ( i ) ; e = MI -> getNumOperands()" LLVM,NVPTX,43,") { The loop will iterate through all operands of a given MachineInstruction and convert each operand into an MCOperand using the lowerOperand() function." LLVM,NVPTX,44,"; localDecls [ demotedFunc ] = temp ; O << ""; return; } if (GVar->isConstant()) { O << << llvm::getConstantName(*GVar) << ; return; }" LLVM,NVPTX,45,") ) { sys :: path :: append ( FullPathName , Filename ) ; Filename = FullPathName . str ( ) ; } if ( filenameMap . find ( Filename . str ( ) ) == filenameMap . end ( ) ) filenameMap [ Filename . str ( ) ] = i ; The code creates a map of filenames and their corresponding index in the program, to be used in the EmitDwarfFileDirective function." LLVM,NVPTX,46,"( ) ) { The last statement of this code snippet is: if (seenMap.size() > 100) return false;" LLVM,NVPTX,47,"OS( _O ) {} AsmPrinter ( _AP ) : size ( _size ) , buffer ( _size ) , OS( _O ) {}" LLVM,NVPTX,48,"Name -> isDeclaration ( ) && ) { << "" 8" LLVM,NVPTX,49,"true ; if ( F -> size ( ) == 0 ) { emitDefinition ( F , O ) ; }<\s> The code snippet checks whether a parent is defined for U and if so, checks if the function F has already been seen. If it has been seen, the emitDeclaration() function is called and the loop is broken. If not, the emitDefinition() function is called and the function F is added to the seenMap. This ensures that the emitDefinition() function is only called once for each function that is encountered." LLVM,NVPTX,50,") "" && OutStreamer != nullptr);""" LLVM,NVPTX,51,":: MO_Metadata: O << ; } ""${UNSUPPORTED$}""" LLVM,NVPTX,52,") ; i != e ; ++ i ) { bufferLEByte ( cast < Constant > ( CPV -> getOperand ( i ) ) , , aggBuffer ) ; if ( const ArrayType * AT = ) CDS -> getElementType ( i ) -> getScalarType ( CDS -> getElementType ( i ) ) -> getPrimitiveSizeInBits ( ) / ; * 8" LLVM,NVPTX,53,") ; the type of CPV is not supported." LLVM,NVPTX,54,"gv_array [ i ] ); = Num_Lit + 1" LLVM,NVPTX,55,") ; ""the CUDA driver interface.""" LLVM,NVPTX,56,") << ""---------------------------------------------------------------"" ;" LLVM,NVPTX,57,"<< ""\n .kernel "" ; This code snippet checks if the function *F is a kernel function and if it is, prints "".kernel"" to the output stream O. " LLVM,NVPTX,58,"; break ; } } If none of the conditions are met, move on to the next iteration." LLVM,NVPTX,59,"; i ! = e ; ++ i ) , e = gvars.size(); i != e; ++i)" LLVM,NVPTX,60,"] '\0' ; ""delete all remaining data and terminate the current function body.""" LLVM,NVPTX,61,") { return; Explanation: In this code snippet, the statement ""return;"" is used at the end of the EmitFunctionBodyEnd function to indicate that the function has finished executing and should return control to the calling function. Additionally, the return statement is used to specify a specific return value, which in this case is void, indicating that no value is being returned." LLVM,NVPTX,62,"O ) ; ""Lastly, the emitDemotedVars function is called to generate code for the demoted variables in the MF object's function, using the raw_svector_ostream O to store the output data in the SmallString Str.""" LLVM,NVPTX,63,"""\n"" ""llvm::isKernelFunction(*F) ? ""define dso_local "" : ""define dso_local ""; printReturnValStr(*MF, O); O << ""\n"";" LLVM,NVPTX,64,"{ O << ; } ) O << """";" LLVM,NVPTX,65,"str ( ) ); printStr(str);" LLVM,NVPTX,66,"reqntidz ) == false ) reqntidz = reqntidx ; else specified = true ; 1" LLVM,NVPTX,67,") ; ""Illegal variable name detected.""" LLVM,NVPTX,68,") ; } Type store size." LLVM,NVPTX,69,") ) { << ""addrspace(""" LLVM,NVPTX,70," ; print "" ); }" LLVM,NVPTX,71,";}} if ( alignStruct == 0 ) alignStruct = 1;" LLVM,NVPTX,72,") { delete reader ; reader = new LineReader ( filename ) ; } return reader ; ""returns the LineReader object that corresponds to the given filename.""" LLVM,NVPTX,73," : If none of the previous cases match, execute the following code for the current case." LLVM,NVPTX,74,"case : case : case : case : case : case : case : case : case : case : case : case : case : "" statement is invalid, please check for errors.""" LLVM,NVPTX,75,"RHS , Ctx ) ; case Instruction :: SRem : return MCBinaryExpr :: CreateMod ( LHS , RHS , Ctx ) ; case Instruction :: Shl : return MCBinaryExpr :: CreateShl ( LHS , RHS , Ctx ) ; case Instruction :: And : return MCBinaryExpr :: CreateAnd ( LHS , RHS , Ctx ) ; case Instruction :: Or : return MCBinaryExpr :: CreateOr ( LHS , RHS , Ctx ) ; case Instruction :: Xor : return MCBinaryExpr :: CreateXor ( LHS , RHS , Ctx ) ; } }" LLVM,NVPTX,76,"']' ; return true;" LLVM,NVPTX,77,"']' ; The last statement is ""O << ']'""" LLVM,NVPTX,78,"( ); API = APF.bitcastToAPInt();" LLVM,NVPTX,79,"; return Res; } MI-> setFlags(MI->getOpcode())); O << "")""; return Res;" LLVM,NVPTX,80,"MO_ExternalSymbol : O << * MO . ; break ""O << MO.getGlobal()->getName() << Modifier;""" LLVM,NVPTX,81,"& index ) ; printRegister ( MI , index , O ) ; } else if ( strstr ( symbname , ) == symbname ) { unsigned index ; sscanf ( symbname + , , & index ) ; printParamSize ( index , O ) ; } else O << symbname ; } break ; case MachineOperand :: MO_MCSymbol : llvm_unreachable ( ) ; " LLVM,NVPTX,82,"^ ... is equal to the number of function arguments in the function ""F""." LLVM,NVPTX,83,"( ) ; elemtype = vtparts [ i ] . getVectorElementType ( ) ; idx = vtparts[i].getVectorNumElements();; } The variable ""idx"" is assigned the value of ""vtparts[i].getVectorNumElements();"" after checking if the element type is a vector." LLVM,NVPTX,84,"] ; } > }" LLVM,NVPTX,85,"; maxLines" LLVM,NVPTX,86,"++ ; } ) ) " LLVM,NVPTX,87,") ) ; ""Directory""" LLVM,NVPTX,88," ; i ) { if ( const MDNode *md = dyn_cast(ui->getUser())) { if (md->hasName() && ((md->getName().str() == ""foo"") || (md->getName().str() == ""bar""))) return true; } } return false;" LLVM,NVPTX,90,"->is s a () ) { This code checks whether the parent of the current instruction is a method or not." LLVM,NVPTX,91,") ) { if ( seenMap . count ( cast < Function > ( cu )) == 0 ) { seenMap [ cast < Function > ( cu )] = true ; } } } } This function iterates through each use of the given constant and checks if the use is a function. If the function has not been seen before, it is added to the seenMap with a value of true." LLVM,NVPTX,92,"( CPV ) ) { CPV->getAggregateElementSize()" LLVM,NVPTX,93,") return false; }" LLVM,NVPTX,94,"( M ) i = 0" LLVM,NVPTX,95,"; This code snippet checks if the named global in the M structure is empty and returns an error message if it is not. It then calls the doInitialization function from the AsmPrinter class on the M structure, sets GlobalsEmitted to false, and returns the result of the function call." LLVM,NVPTX,96,"emitIntValue(3, 1); By executing which the particular instruction for unrolling will have value 3 ." LLVM,NVPTX,97,") The function getSymbol returns the symbol of the given function and is then used to print the symbol, followed by a main parameter. It then outputs the literal string being used and emits a list of function parameters to be used." LLVM,NVPTX,98,"continue ; The code snippet ends by checking whether the user is an instruction and then obtaining the parent basic block of that instruction." LLVM,NVPTX,99,"); This code clears the VRegMapping object." LLVM,NVPTX,100,"( ) ; The function body end has been successfully emitted and the virtual register mapping has been cleared." LLVM,NVPTX,101,") , O ) ; `will print the demoted variables of the function ( Function Reference in Ostream) into O. `" LLVM,NVPTX,102,"( ) , O ) ; to output the demoted variables for the function into the raw_svector_ostream object O." LLVM,NVPTX,103,") ; } The emitFunctionParamList function takes in a machine function and a raw ostream, retrieves the corresponding function, and then calls the emitFunctionParamList function to emit the function's parameter list to the output stream." LLVM,NVPTX,104," ; ""All global variables have been visited and emitted."" ""All global variables are accounted for and have been printed at the module level."" ""The number of global variables visited and emitted is equal to the number of global variables in the module."" ""Each global variable has been visited and emitted once.""" LLVM,NVPTX,105," The if statement checks if MMI has debug information and if HasFullDebugInfo is true, then the output stream O is written the specified STR_LIT." LLVM,NVPTX,106,") -> getName ( Register ) ) ; assert ( Register && ) ; In order to add a comment to the output stream, we assert that the Register is valid and of the expected ISA_LIT." LLVM,NVPTX,107,"( ) ; The last statement is adding a blank line to the output stream using the ""AddBlankLine()"" method." LLVM,NVPTX,108,"Str.__str() ""().name""" LLVM,NVPTX,109," ; case Type :: DoubleTyID : return ; case Type :: X86_FP80TyID : return ; case Type :: PointerTyID : return ; } ""'32'""" LLVM,NVPTX,110,"! */ ){ int ; // a 32-bit pointer. } else { i64 ; // a 64-bit pointer. } 0;" LLVM,NVPTX,111,") { return ""If the initialization list does not exist, the code will not perform the following actions."";" LLVM,NVPTX,112,"0 ; This code snippet checks whether the given global variable has an empty array initializer or not." LLVM,NVPTX,113,"getLoopFor ( & MBB ) ) contin ue; The code snippet uses the MachineLoopInfo analysis to determine if the given MachineBasicBlock is a loop header and then checks if the previous basic block belongs to the same loop. If it does, the execution continues." LLVM,NVPTX,114,"( ) ) ; Z (getTheTargetARM()) ;" LLVM,NVPTX,115,") ) ); NVPTargetMachine" LLVM,NVPTX,116,") ) , // Sym = *SymNamePtr, 'Sym' refers to the symbol in the Symbol Reference table that is pointed to by the Symbol Name Pointer, 'SymNamePtr'." LLVM,NVPTX,117,") ; The statement is missing so it has been completed. ""O << ']' ; return false ; }""" LLVM,NVPTX,118," ; printOperand ( MI , opNum + , ) ; ""!""" LLVM,NVPTX,119,"O ) ; This code snippet includes instructions for handling different types of global variables such as normal, constant, and sampler variables." LLVM,NVPTX,120,"O ) ; } printReturnValStr (const Function * F, raw_ostream & O) { O << ""Return value of "" << F->getName() << "":""; }" LLVM,NVPTX,121,"; --> Print the return value of the function F, using the output argument O." LLVM,NVPTX,122,"{ getSymbol ( GVar ) -> print(O, MAI); If the value is a ConstantExpr, it is checked to see if it is a global value and if EmitGeneric is true and it is not a function and not a non-generic pointer, then the symbol is printed with the specified output stream and machine assembly information. Otherwise, the symbol is printed without adding anything extra to it." LLVM,NVPTX,123,"Bytes_str . str ( ) . c_str ( ) ) ) ; Result is whatever AsmPrinter::runOnMachineFunction(F) returns, which seems to be a boolean value." LLVM,NVPTX,124," ; O << ; O << ; } < ""PUSH""; O << << TRI->getProgramCounter() << ; O << << MFI.getMaxAlign().value() << << DEPOTNAME << getFunctionNumber() << << NumBytes << ; if (static_castTargetMachine&> (MF.getTarget()).is64Bit()) { O << ( U ) ) { if (useFuncSeen(I, seenMap)) return true; } else if (const BasicBlock *BB = dyn_cast(U)) { return false; }" LLVM,NVPTX,126,"GV ) After iterating through the DenseSet ""Others"" and visiting each GlobalVariable, the order of emission is pushed back into the ""Order"" vector and the GlobalVariable ""GV"" is inserted into the ""Visited"" set." LLVM,NVPTX,127,"true The could be replaced with the actual number or variable that needs to be inserted into the buffer at the current position (curpos)." LLVM,NVPTX,128,"; This code snippet appends the variable ""GVar"" to the end of the ""Symbols"" vector and increments the variable ""numSymbols"" by one." LLVM,NVPTX,129,"value; curpos ++; } size - 1;" LLVM,NVPTX,130,"[_size];"" } This code snippet initializes the AggBuffer class with a specified size and raw output stream, and assigns a newly allocated array of unsigned characters to the buffer." LLVM,NVPTX,131,"getTargetStreamer ( ) ) -> "";""" LLVM,NVPTX,133,"!= e ; ++ i ) { if ( vtparts [ i ] . isScalableVector ( ) ) { O << ; break ; } O << << ( int ) vtparts [ i ] . getSizeInBits ( ) << ; } printParamName ( I , paramIndex , O ) ; } : O << "") title(int dst , uint src1) ; printParamName (I, paramIndex, O); continue; } O << '): store ' << kWavCharacteristics.thePointerTy.getSizeInBits() << '\n" LLVM,NVPTX,134,"; return ; the case Type::VectorTyID:" LLVM,NVPTX,135,"* ) ( buffer + pos ) ; Name"">((AP.Mang->getSymbol(GVar)); O << * Name;} else if (ConstantExpr * Cexpr = dyn_cast(v)) {O << * Name(Cexpr, AP);} else llvm_unreachable(""Name""); nSym++; if (nSym >= numSymbols) nextSymbolPos = size + ""nSym""; else nextSymbolPos = symbolPosInBuffer[nSym];} else if (nBytes == ""nBytes"") O << *(unsigned int *)(buffer + pos); else O << *(unsigned long long *)(buffer + pos);" LLVM,NVPTX,136,"( ) ; ""The module has been successfully emitted.""" LLVM,NVPTX,137,"O ) ; break ; } }} This code snippet checks if the function pointed to by F is a declaration. If it is a declaration, it checks if it is used in a global variable definition or in a previously seen function, and if so, emits the declaration. If the function is not a declaration, the for loop iterates through each of its users and checks if it is a constant. If it is a constant and it is used in a global variable definition or in a previously seen function, the declaration is emitted and the loop is broken." LLVM,NVPTX,138,"< Instruction > ( U ) ; } } This code snippet loops through each user of a function, checking if they are a constant and whether they are used in a global variable definition or have been seen before. It then emits a declaration and breaks out of the loop if either of these conditions are met. Finally, if the user is not an instruction, the loop continues." Compiler Type,Target,Idx,Code LLVM,NVPTX,139,"F , O ""; ""#NotSetInKernel ""; ""; const TargetLowering *TLI = TM.getTargetLowering(); BranchFolder Folder(*MF); if (EarlyExit) Folder.addEarlyCSEPass(); if (PrintLiveVariables) Folder.addLiveVariablePass(); Folder.addBranchIntegrityPass(); Folder.fold(); DEBUG(dbgs() << ""After optimization round" LLVM,NVPTX,140,"DirName ) ; 4" LLVM,NVPTX,141,"str ( ) ) ; ""if (fileNameMap.find(fileName) == filenameMap.end()) return;""" LLVM,NVPTX,142,"; This code snippet checks if the current file name of the reader is equal to the given filename. If they are not equal, the reader is deleted and a new LineReader object is created with the given filename. Finally, the updated reader object is returned." LLVM,NVPTX,143,"filename ) ; } else { // if the reader object does already have the specified filename, do nothing }" LLVM,NVPTX,144,") , createAsmPrinter ) ; This code snippet is registering an AsmPrinter for the ISA_LIT target with a function called createAsmPrinter." LLVM,NVPTX,145,"AsmPrinter::lowerImageHandleSymbol(const unsigned Index, MCOperand &MCOp) { TargetMachine &TM = const_cast(MF->getTarget()); TargetMachine& nvTM = static_cast<TargetMachine&>(TM); const MachineFunctionInfo* MFI = MF->getInfo<MachineFunctionInfo>(); const char *Sym = MFI->"" This is where we need to change the &target to const address TMInfo. ""AsmPrinter::lowerImageHandleSymbol (" LLVM,NVPTX,146,"OutContext ) ) ; break ; } } "" ) ; break ;" LLVM,NVPTX,147," ; getSymbol ( GVar ) -> print ( O , MAI ) ; } } else { } } else { } } else { } break ; case Type :: : O << << ETy -> getPrimitiveSizeInBits ( ) ; O << ; getSymbol ( GVar ) -> print ( O , MAI ) ;* This underlying code uses the clang encoding library." LLVM,NVPTX,148,"( ) ; } else if ( vtparts [ i ] . isInteger ( ) ) { elems = ; } else { elems = ; } llvm::elemType = elemType; size = ( size < ( elems * elemType.getSizeInBits ( ) ) < size ; } llvm_unreachable(""Unknown type encountered during analysis."");" LLVM,NVPTX,149,"<< ; << ""lldb_private::Type *lldb_private::Type::GetLLDBPredefinedType( "" ) ) { return nullptr; } else { return nullptr; } }" LLVM,NVPTX,150,FullPathName . c_str LLVM,NVPTX,151," ; break ; case :: NAN : O << ; break ; O << ""default"" ; break ;" LLVM,NVPTX,152,"; } }" LLVM,NVPTX,153," ) . ""The 'else' statement at line 10 must be true.""" LLVM,NVPTX,154,"; The variable ""GVar"" has been added to the end of the ""Symbols"" vector, and the number of symbols has been updated to reflect this addition." LLVM,NVPTX,155,"; ""The 'numSymbols' variable is incremented by one to account for the new element added to the 'Symbols' vector.""" LLVM,NVPTX,156,"0 ; This code snippet creates an AggBuffer object that stores data in a buffer of size _size and outputs it to the raw_ostream _O, using _AP as the AsmPrinter. The initial current position of the buffer is 0." LLVM,NVPTX,157,"""This code will throw an error if any operands are found in the instruction.""" LLVM,NVPTX,158,"; } ""Cannot handle ConstantInt with a type other than Int32 or Int64.""" LLVM,NVPTX,159,"oneFunc ) ; if ( flag ) therefore, oneFunc can demote the global variable." LLVM,NVPTX,160,") ; } ""End of code snippet."" The code snippet ends by adding any module inline assembly to the output stream using the OutStreamer object." LLVM,NVPTX,161,"*Mang , Out ); The Mangler object is used to handle name mangling for the target machine's data layout." LLVM,NVPTX,162,"< ) > ;" LLVM,NVPTX,163,"O ) ; This code snippet sets and emits the virtual registers for a given function and then uses a raw_svector_ostream to output the demoted variables for the function." LLVM,NVPTX,164,"MF -> getFunction ( ) O << ""{"" ""; O << ""}"" << ""\n"";" LLVM,NVPTX,165,") ) ; ""Iterate through the function and output relevant information about the parameters and function directives.""" LLVM,NVPTX,166," 8" LLVM,NVPTX,167,"( ) ) ; the number of global variables visited should be equal to the number of global variables in the module and the number of currently visiting global variables should be zero." LLVM,NVPTX,168,"M . global_end ( ) ; ; The last statement: ""If the machine assembly instruction object does support debug information, then add a special string to the output stream.""" LLVM,NVPTX,171,", <Inst ) . < Str >> ) ;" LLVM,NVPTX,172,"maxntidy = ; else specified = true ; maxntidz = 1024;" LLVM,NVPTX,173,") ; } ""The assert statement ensures that the retrieved scope is a valid scope, and if not, it returns.""" LLVM,NVPTX,174,"( ) ) { O << ; } } } if (ISA_LIT == ""NVPTX"") {" LLVM,NVPTX,175,"-> getElementType ( ) ) ; } :""; }""" LLVM,NVPTX,176,"str ( ) ) ) ; *""reader \->readLine(line),"" therefore the that is at the end of the first code snippet is read by the reader function and added to the temp string. The temp string is then converted to a Twine object and emitted through the OutStreamer object. This allows for the data from the to be outputted through the OutStreamer object." LLVM,NVPTX,177,-> LLVM,NVPTX,178,"; """" This code snippet is checking if the value of PI is not equal to the end of the TypeNameMap and the value of PI does not match any of the three string literals, then the function returns true. Otherwise, it will return false." LLVM,NVPTX,179,"I = imageTypeInfo . begin (), E = imageTypeInfo . end(); " LLVM,NVPTX,180,"(""isa_asm_printer"", Asm) enables multiple byte sequences to be used as operands." LLVM,NVPTX,181,"return lowerGEP(CE,AP); ""The constant expression is not supported.""" LLVM,NVPTX,182,"true ; } return false ; } case : { if ( OpNo == ) { lowerImageHandleSymbol ( MO . getImm ( ) , MCOp ) ; return true ; } return false ; } All of the cases in the code above handle specific types of operations. The last statement of this code snippet completes the switch statement and closes the function definition." LLVM,NVPTX,183,"&_FVMContext , SymbolTable ) ; } else { ""Cexpr->getName());" LLVM,NVPTX,184,"[INDEX]) << ""; // to print global address to output stream" LLVM,NVPTX,185,"{ return I ; } } params["" << paramIndex; return; } for (I = F->arg_begin() , E = F-> arg_end(); I != E ;++I , i ++) { if (i == paramIndex) { return I ; } }" LLVM,NVPTX,186,"( ) ) { elems = vtparts [ i ] . ( ) ; elemtype = vtparts [ i ] . ( ) ; } << ""Sizes: "" << elems * elemtype.isByteSized() << "" ""Integer.h"" return type is i32" LLVM,NVPTX,187,"( GVar ) ; O << ; } else { O << * getSymbol ( GVar ) ;} } ""llvm-pointer-to-int""" LLVM,NVPTX,188,", Filename ) ; Filename = FullPathName . str ( ) ; } if ( filenameMap . find ( Filename . str ( ) ) != filenameMap . end ( ) ) continue ; filenameMap [ Filename . str ( ) ] = i ; OutStreamer . EmitDwarfFileDirective ( i , , Filename . str ( ) ) ; ++ i ; } // Emit the assembly output... }" LLVM,NVPTX,189,"[ RC ] ; O << ,M. O << ,vr << , << TRI->getName(vr) << << regmap[vr] << ;" LLVM,NVPTX,190,") ) ; ""NVPTX_MD""" LLVM,NVPTX,191,"true ; GV -> getName ( ) . str ( ) == ""myGlobalVar""" LLVM,NVPTX,192,"curFunc ; } return true ; This code snippet returns true if the given instruction is part of the same function as the previously checked instruction, and false otherwise." LLVM,NVPTX,193,"> GVDependentVariables ; for ( auto & U : GV -> uses ( ) ) { if (auto *GV = dyn_cast(U)) { GVDependentVariables.insert(GV); VisitGlobalVariableForEmission(GV, Order, Visited, Visiting); }" LLVM,NVPTX,194,"= Others . end ( ) ; I != E ; ++ I ) { continue exploring all the dependent global variables." LLVM,NVPTX,195," The [ ] represents an unspecified element or elements to be deleted." LLVM,NVPTX,196,"{ __PTX_is_printer_CC__ ""ElementSize = DL.getTypeStoreSize(ETy); __PTX_is_printer_CC__""" LLVM,NVPTX,197,"; ""align """ LLVM,NVPTX,198,") ; i < NUM_LIT" LLVM,NVPTX,199,"global_list , n+1" LLVM,NVPTX,200,") ; The ""PTXVersion"" and ""PTXVersion % "" refer to the PTX version that is obtained from the ""getPTXVersion()"" method. This code prints out the string ""PTX version"" followed by the calculated value of the PTX version divided by the and then the remainder of that division, followed by the string ""for target"" and the target name obtained from the ""getTargetName()"" method." LLVM,NVPTX,201,"EmitRAWData ( ( const char * ) <> ) > MBB, 0 )" LLVM,NVPTX,202," The will print the code for the basic block given by the argument MBB." LLVM,NVPTX,203,"( ) ; ""If the register number is not in getVirtualRegisterName, add comment using the subtarget implementation's register information. Then add a blank line to the OutStreamer.""" LLVM,NVPTX,204,"( TD , ETy ) ; if ( align > alignStruct ) alignStruct = align ; } return alignStruct ; } The statement missing is: ""return alignStruct;""." LLVM,NVPTX,205,) ( ) ; } ""Type of the vector is unknown.""" LLVM,NVPTX,207,"<< ; n ;" LLVM,NVPTX,208,"; } The code snippet checks if the instruction's parent and grandparent exist, and declares the current function as the parent of the grandparent. If the current function is not equal to oneFunc, the function will return false." LLVM,NVPTX,209,") ; the number 1." LLVM,NVPTX,210,", O ) ; O << << sz << ; is ""O << getTypePrefix(Ty->getPrimitiveSizeInBits()) << getTypePostfix(Ty->isIntegerTy()) << getTypeAlignment(Ty->getPrimitiveSizeInBits()) << getTypeName(Ty->isIntegerTy()) << getTypeWidth(Ty->getPrimitiveSizeInBits())""." LLVM,NVPTX,211,"C == '< >"") OriginalNameStream << C; }" LLVM,NVPTX,212,") {CleanNameStream <<} --> ';' CleanNameStream << C;" LLVM,NVPTX,213,"RHS , Ctx ) ; case Instruction :: Sub : return MCBinaryExpr :: CreateSub ( LHS , RHS , Ctx ) ; case Instruction :: Mul : return MCBinaryExpr :: CreateMul ( LHS , RHS , Ctx ) ; case Instruction :: SDiv : return MCBinaryExpr :: CreateSDiv ( LHS , RHS , Ctx ) ; case Instruction :: SRem : return MCBinaryExpr :: CreateSRem ( LHS , RHS , Ctx ) ; case Instruction :: Shl : return MCBinaryExpr :: CreateShl ( LHS , RHS , Ctx ) ; case" LLVM,NVPTX,214,"MO_JumpTableIndex : MCOp = MCOperand :: CreateExpr ( MCBinaryExpr :: Create ( MCBinaryExpr :: Sub , MCSymbolRefExpr :: Create ( MO . getGlobal ( ) -> getSymbol ( ) , OutContext ) , MCBinaryExpr :: Create ( MCBinaryExpr :: Sub , MCSymbolRefExpr :: Create ( MO . getTargetFlags ( ) -> getSymbol ( ) , OutContext ) , MCBinaryExpr :: Create ( MCBinaryExpr :: Sub , MCSymbolRefExpr :: Create ( MO . getIndex ( ) -> getSymbol ( ) , OutContext ) , MCS" LLVM,NVPTX,215,"() ; ""getBasicBlockNumber();""" LLVM,NVPTX,216,". getGlobal ( ) ) ; ""; break;""" LLVM,NVPTX,217,". getOperand ( 1 ) ) ; ""CUDA""" Compiler Type,Target,Idx,Code LLVM,NVPTX,218,"( ""END"" ) ;} ""The segment of code above emits the module inline assembly code and adds a comment indicating the end of the inline assembly section.""" LLVM,NVPTX,219,"""ModuleID = '"" + MMID . getModuleIdentifier ( ) + ""'"" ) ; In this code snippet, the is supposed to be changed to ISA, and the is supposed to be changed to a specific number." LLVM,NVPTX,220,"( ) ; } ) + ""Implicitly defined virtual register: """ LLVM,NVPTX,221,") {Undo // emits the given machine instruction onto the output stream." LLVM,NVPTX,222,"( ) ; "");" LLVM,NVPTX,223,"() );" LLVM,NVPTX,224,"; "" // This break statement belongs to the switch statement and indicates the end of the code block.""" LLVM,NVPTX,225,"!= ) } No symbols are printed to the output stream because the is equal to (zero), causing the code to not enter the if statement and the switch statement, which are the only places where symbols are printed to the output. As a result, the code will simply print and the name of the GVar, followed by , giving the output of ." LLVM,NVPTX,226,"ETy ) ; break ; } O << << ElementSize << << * getSymbol ( GVar ) << const GlobalVariable * demotedFunc = nullptr; if (!processDemoted && canDemoteGlobalVar(GVar, demotedFunc)) { O << """"; O << GVar->getName() << << ""ptr "" << *getSymbol(GVar) << "";\n"";" LLVM,NVPTX,227,"raw_ostream &) { [BUILTIN_MI] { MI->printOperand(paramIndex, O << ""param"" << paramIndex); }" LLVM,NVPTX,228, << vtparts [ i ] . ; if ( i < ) { (1) The base address of the type. LLVM,NVPTX,229,":: path :: is_absolute ( Filename ) ) { sys :: path :: append ( FullPathName , Filename ) ; Filename = FullPathName ; } if ( filenameMap . find ( Filename ) != filenameMap . end ( ) ) continue ; filenameMap [ Filename ] = i ; OutStreamer . EmitDwarfFileDirective ( i , , Filename ) ; ++ i ; } if (filenameMap.find(Filename) != filenameMap.end()) continue;" LLVM,NVPTX,230,"] = ; } i = 0;" LLVM,NVPTX,231,"( RC ) ; -1" LLVM,NVPTX,232,"/ << << I -> getName ( ) << ; } "" << Ty->getPointerAddressSpace() <<"" = ""<< Pal.getPointerOffset(paramIndex) <<"" ) { O << << Pal.getParamOffset(paramIndex +1) << << I->getName() << ; } "" << Ty->getPointerAddressSpace() <<"" = ""<< Pal.getPointerOffset(paramIndex) << << I->getName() << ; }""> "" << Ty->get" LLVM,NVPTX,233,"; (RC) ; } return Ret;" LLVM,NVPTX,234,"== || sz == ) ) sz = ; O << << emitLeadingPart ( idx + i , sz , O , DL . isBigEndian ( ) ) ; } idx += elems ; ""LLVM_UNREACHABLE""" LLVM,NVPTX,235,"; } : \end { \cpp }" LLVM,NVPTX,236,") -> finishAttributeSection( ) n; n-1; ""This will emit debug breakpoints for any global variables that were removed during the optimization process, and then finish the attribute section for the target streamer.""" LLVM,NVPTX,237,") -> emitLabelDifference END ""end ( ) , gv_array [ i ] ) ; clearAnnotationCache ( & M ) ; delete [ ] gv_array ; if ( HasDebugInfo ) OutStreamer -> EmitRawText ( ) ; static_cast TargetStreamer * > ( OutStreamer -> getTargetStreamer ( ) ) -> emitLabelDifference END; // end of code snippet""" LLVM,NVPTX,238,"true ; ""End of global variable emission""" LLVM,NVPTX,239,"; (""//""); } The end of the function body has been successfully emitted!" LLVM,NVPTX,240,") , O ) ; ; This code snippet uses the emitDemotedVars function to emit demoted variables from the function referenced by MF onto the raw_svector_ostream object O, which is initialized with the SmallString object Str and contains a numeric literal." LLVM,NVPTX,241,"( ) . c_str ( ) ) ; This code snippet creates a string representation of a function and emits it to the output stream." LLVM,NVPTX,242,", O ) ; ""}""" LLVM,NVPTX,243,") ) ; ""The code snippet above shows how function parameters are emitted and how the kernel function directives are handled, followed by clearing the virtual register mapping and emitting raw text for a string literal.""" LLVM,NVPTX,244,"; , 0" LLVM,NVPTX,245,", Inst ) ; } T> The EmitInstruction function takes in a MachineInstr pointer named MI and converts it using the lowerToMCInst function. The resulting MCInst is then emitted to the OutStreamer using the EmitToStreamer function." LLVM,NVPTX,246," ; break ; } return ElementSize;" LLVM,NVPTX,247,") ; } else if ( RC == & ) { Ret = ( << ) ; } else if ( RC == & ) { Ret = ( << ) ; } else if ( RC == & ) { Ret = ( << ) ; } else { Ret = ( << ) ; }" LLVM,NVPTX,248," ) ; case Instruction :: Add : return MCBinaryExpr :: createAdd ( LHS , RHS , Ctx ) ; } }> 1" LLVM,NVPTX,249,") ; ""The constant expression could not be resolved.""" LLVM,NVPTX,250,"++ ; } } pos==nextSymbolPos" LLVM,NVPTX,251," ; } } llvm_unreachable ( : "" ""InvalidArgument: unknown symbol""""); } //end of for loop" LLVM,NVPTX,252,"Result ; STR_LIT" LLVM,NVPTX,253,") ; return Result ; return true;" LLVM,NVPTX,254,") , Globals ) ; } } i=0" LLVM,NVPTX,255,", ""if ( nvptxSubtarget . getDrvInterface ( ) == ) recordAndEmitFilenames ( M ) ;""" LLVM,NVPTX,256,">> ""if (nvptxSubtarget.is64Bit()) O << ; else O << ; O << ; O << ;""" LLVM,NVPTX,257," >>> ""If nvptxSubtarget is interfaced with , then the code will print .""" LLVM,NVPTX,258,", Ctx ) ; case Instruction :: Shl : return MCBinaryExpr :: CreateShl ( LHS , RHS , Ctx ) ; case Instruction :: And : return MCBinaryExpr :: CreateAnd ( LHS , RHS , Ctx ) ; case Instruction :: Or : return MCBinaryExpr :: CreateOr ( LHS , RHS , Ctx ) ; case Instruction :: Xor : return MCBinaryExpr :: CreateXor ( LHS , RHS , Ctx ) ; } } ""return RI"";" LLVM,NVPTX,259,":: V4 ) O << ; else O << ; } "" ).stride(MBB)" LLVM,NVPTX,260,") ; i = 0" LLVM,NVPTX,261,"> Tmp ; { Tmp.append(getFunctionName()) ; OutStreamer -> EmitRawText(Tmp) ; } }" LLVM,NVPTX,262,"Storage ; raw_svector_ostream OS ( StrStorage ) { ` MF->getFunction()->printAsProlog(*OS); }" LLVM,NVPTX,263,"( ) ; "";""" LLVM,NVPTX,264,""""" . Code that prints the target machine's name and debug information if supported." LLVM,NVPTX,265,"> ( NTM.getSubtargetImpl() ) ; = TargetMachine &" LLVM,NVPTX,266,"Mountain LionSavior ); }" LLVM,NVPTX,267,"<< ElementSize ; O << getPTXFundamentalTypeStr ( ETy -LLVM-ptx/src/PTXAsmPrinter.cpp ""dataTypeSize""" LLVM,NVPTX,268,"true ; n ) global_list . insert ( global_list . end ( ) , gv_array \ ( OutStreamer -> getTargetStreamer ( ) ) -> closeLastSection ( ) ; OutStreamer -> EmitRawText ( "".asciiz"" ) } static_cast < MipsTargetStreamer * > ( OutStreamer -> getTargetStreamer ( ) ) -> outputDwarfFileDirectives ( ) ; return true ; " LLVM,NVPTX,269,"MBB ) { // implementation omitted } The EmitBasicBlockStart method is responsible for emitting the required instructions at the beginning of the specified machine basic block, AsmPrinter." LLVM,NVPTX,270,"-> users ( ) ) { The function is being declared." LLVM,NVPTX,271," ) ;" LLVM,NVPTX,272,"MF , O ) ; } The code snippet ends with the call to the ""setAndEmitFunctionVirtualRegisters"" function, which sets and emits the virtual registers for the function." LLVM,NVPTX,273,"; while ( <= ) { paramIndex < Args.size() && ""Invalid argument index!"");" LLVM,NVPTX,274,"( i ) ; if ( ! contains ( RC ) ) { O << << RC -> << ; } } ""> void PowerAsmPrinter::setAndEmitFunctionVirtualRegisters(const MachineFunction &MF) { SmallString<64> Str; raw_svector_ostream O(Str); const TargetRegisterInfo *TRI = MF.getSubtarget().getRegisterInfo(); const MachineFrameInfo &MFI = MF.getFrameInfo(); int NumBytes = (int)MFI" LLVM,NVPTX,275,") ; NUM_LIT = 0; ISA_LIT = ""Mips"";" LLVM,NVPTX,276,"; break ; ""case llvm::ADDRESS_SPACE_LOCAL: O << ; break;""" LLVM,NVPTX,277,"; } ""The last statement of this code snippet is a return statement that returns the boolean value true.""" LLVM,NVPTX,278,"... if the pointer type is not a function and is a generic pointer type." LLVM,NVPTX,279,"M ) ; } The doFinalization function of the AsmPrinter class executes the finalization process for the given module M and returns true if successful." LLVM,NVPTX,280,"( Ty ) ; if ( OptimalAlign ) { O << << OptimalAlign . value ( ) ; } else { O << ; } the calculated optimal alignment for the parameter, using the target's getFunctionParamOptimizedAlign and getParamAlignment methods." LLVM,NVPTX,281,") ; ""nBytes * CHAR_BIT""" LLVM,NVPTX,282," ; EVT firstEVT = vtparts [ ] ; if ( Ty -> isFP128Ty ( ) || Ty -> isPPC_FP128Ty ( ) ) { */ 128 if ( size of the value is not greater than the size that is specified in the LLVM compute." LLVM,NVPTX,283,"; } "")""" LLVM,NVPTX,284," ) ""paramIndex""" LLVM,NVPTX,285,") ; return alignStruct;" LLVM,NVPTX,286,") ; Op = ConstantExpr :: getIntegerCast ( Op , DL . getIntPtrType ( Ty ) , false ) ; return MCSymbolRefExpr :: create ( getSymbol ( Op ) , Ctx ) ; } "" Cannot lower a constant expression for a global variable.""" LLVM,NVPTX,287,"BitCast : DstTy -> getAddressSpace ( ) = the address space of the destination type (bitcast operation)" LLVM,NVPTX,288,") ... This code snippet is used to output the header of a Module (M) using the AsmPrinter class and a given SubTargetInfo (STI)." LLVM,NVPTX,289,"filenameMap StringRef );" LLVM,NVPTX,290,"i ; } Filename ) ; Filename ) ." LLVM,NVPTX,291,") ) { } sys::path::append(FullPathName, Filename);" LLVM,NVPTX,292,"-> getType ( ) ; return LowerConstant ( ConstantExpr :: getPtrToInt ( Op , Ty -> getContext ( ) ), AP ) ; } ""The associated value that is returned is a lower constant that represents the given constant expression.""" LLVM,NVPTX,293,"{ unsigned ElemSize = DL . getSizeInBits ( ETy ) ; unsigned NumElements = ; O << ""align "" << ( int ) getOpenCLAlignment ( DL , ETy ) << ""; } printParamName ( I , paramIndex , O ) ; continue ; } O << "", ""; if ( Ty->isIntegerTy ( 64 ) ) O << ""i64""; else O << getPTXFundamentalTypeStr ( Ty ) ; O << "" ""; printParamName ( I , paramIndex , O ) ; continue ; } unsigned sz = 8; if (" LLVM,NVPTX,294,": O << getMBBLabel ( * ( MO . getMBB ( ) ) ) ; break; O << "" @ "" << getMBBLabel ( * ( MO . getMBB ( ) ) ); break;" LLVM,NVPTX,295,", float64 ) ; aggBuffer -> addBytes ( ptr , , Bytes ) ; } ""Some sort of return statement.""" LLVM,NVPTX,296,"false ; >The last statement is ""return false;""." LLVM,NVPTX,297,") ; } ""The output should be produced when a primitive type, integer type, or pointer type is encountered.""" LLVM,NVPTX,298,": return MCBinaryExpr :: CreateOr ( LHS , RHS , Ctx ) ; case Instruction :: Xor : return MCBinaryExpr :: CreateXor ( LHS , RHS , Ctx ) ; " LLVM,NVPTX,299,", & index ) ; printParamValueAndName ( index , O ) ; } else O << symbname ; } break ; The statement should be ""case MachineOperand::MO_MCSymbol: O << * MO.getMCSymbol();""" LLVM,NVPTX,300,") & ""global variable not found"" 32" LLVM,NVPTX,301,", ProcessingGeneric ) ; } ""if ( C && C != CE ) return lowerConstantForGV ( C , ProcessingGeneric ) ;""" LLVM,NVPTX,302," ""Unexpected type encountered in code generation.""" LLVM,NVPTX,303," ) O << "" vx"" << idx << "", "";" LLVM,NVPTX,304,i = 0 LLVM,NVPTX,305,") ) -> ISA_LIT b . generateGlobalVariable ( & M , gv_array [ i ] ) ; n" LLVM,NVPTX,306,"!= numVRs ; ++i ) { "" << DEPOTNAME << ""/Frame"" ; }" LLVM,NVPTX,307,") the function will not execute because the if statement evaluates to false as there is no module level inline assembly in the module." LLVM,NVPTX,308,"O ) Thus, the final statement of the code snippet could be either ""printKernelEndStr(MF, O)"" or ""printFunctionEndStr(MF, O)"". The appropriate statement will depend on the function being a kernel or a regular function, respectively." LLVM,NVPTX,309,"Linkage ( GVar , GVar -> getName ( ) ) ; } the alignment of the input data" LLVM,NVPTX,310,") ) ""allocate . space """ LLVM,NVPTX,311,") , E = M . global_end ( ) ; I != E ; ++ I ) ... ... if (I->getName() != ""main"") emitGlobalDefinitions(*I, OS2);" LLVM,NVPTX,312,"> ( llvm :: unbundleArray ( * I ) -> getType ( ) ) << sz << ;" LLVM,NVPTX,313,") ; getName()>;" LLVM,NVPTX,314,""" [ "" << << TD -> getTypeAllocSize ( ETy ) ; } GVar->getName() << "" : "";" LLVM,NVPTX,315,"] . getVectorElementType ( ) ; } } The last statement of this code snippet is ""assert(false && 'Unhandled type')""." LLVM,NVPTX,316,"i ] ; if ( vtparts [ i ] . isVector ( ) ) { elems = vtparts [ i ] . getVectorNumElements ""elems = vtparts[i].getVectorNumElements(); elemtype = vtparts[i].getVectorElementType();""" LLVM,NVPTX,317,") << ; "";""" LLVM,NVPTX,318,"! Cursor ) { ""return ElementSize;""" LLVM,NVPTX,319,"( ) , ProcessingGeneric ) ; return MCBinaryExpr :: ( LHS , RHS , Ctx ) ; } MCBinaryExpr::createAdd(LHS, RHS, Ctx);" LLVM,NVPTX,320,"idx ; } 16" LLVM,NVPTX,321,"( ) ; if ( isa < ConstantExpr > ( Op ) ) return lowerConstantForGV ( Op , true ) ; // The string ""Unable to lower INTTOPTR to a simple relocation PC-relative expression."" , ""Unable to lower INTTOPTR to a simple relocation PC-relative expression."");" LLVM,NVPTX,322,"FPTrunc : { is the string representation of the constant being operated on." LLVM,NVPTX,323,"MO_ExternalSymbol : { const char * symbname = MO.getSymbolName(); if (strstr(symbname, ""MYCOMPILER_PARAM"") == symbname) { unsigned index; sscanf(symbname + 16, ""%d"", &index); printParamName(index, O); } else if (strstr(symbname, ""MYCOMPILER_FUNC"") == symbname) { unsigned index; sscanf(symbname + 15, ""%d"", &index); O << *CurrentFnSym << "": parameter "" << index << ""g"" ; } else O << symb" LLVM,NVPTX,324,"( ST ) -> getElementOffset ( i ) ; } CPV -> getOperand(i)->getType().storeBytes(Bytes, Addr);" LLVM,NVPTX,325,"M , OutStreamer ) ""nvptxSubtarget.getDrvInterface() is equal to the string literal.""" LLVM,NVPTX,326,"sz = ; } O << << sz << ; ""snybun3o, c-y { em } continue ; }""" LLVM,NVPTX,327,"TD -> getTypeAllocSize ( ETy ) ; O << ""addrspace("" << PTy->getAddressSpace() << "") align(""; O << (int)TD->getPrefTypeAlignment(ETy); O << "") ""; if (ETy->isFloatingPointTy() || ETy->isIntegerTy() || ETy->isPointerTy()) { O << "" . ""; O << getPTXFundamentalTypeStr(ETy); O << "" ""; O << *getSymbol(GVar); return; } int64_t ElementSize = TD->getTypeAllocSize(ET" LLVM,NVPTX,328," ; the output string representing the size and alignment information of the given type." LLVM,NVPTX,329,"; 'O << << retAlignment << << sz << ;'" LLVM,NVPTX,330,"""}, \""PTXSizeOfu\"" << ETy -> getSequentialElementType ( ) -> getPrimitiveSizeInBits ( ) ; ""), ""PTXSizeOfu"" << ETy -> getSequentialElementType ( ) -> getPrimitiveSizeInBits ( ) ;" LLVM,NVPTX,331,"( ) ; ""PTXGlobalVariable""" LLVM,NVPTX,332,") ; ""Unknown constant expr opcode!"" } return MCBinaryExpr::Create(CE->getOpcode(), LHS, RHS, Ctx); ""Unknown constant expr opcode!""" LLVM,NVPTX,333,"(M) ; doInitialization ( Module & M ) { SmallString < 16 > Str1 ; raw_svector_ostream OS1 ( Str1 ) ; MMI = getAnalysisIfAvailable < MachineModuleInfo > ( ) ; MMI -> AnalyzeModule ( M ) ; const_cast < TargetLoweringObjectFile & > ( getObjFileLowering ( ) ) . Initialize ( OutContext , TM ) ; Mang = new Mangler ( OutContext , & TM ) ; emitHeader ( M , OS1 ) ; OutStreamer . EmitRawText ( OS1 . str ( ) ) ; if ( nvpt" LLVM,NVPTX,334,": case :" LLVM,NVPTX,335,"getType ( ) ) ; bufferLEByte ( CPV -> get ( ) , , aggBuffer ) ; } i = 0" LLVM,NVPTX,336,"oneFunc ) ; if ( ! oneFunc if ( !gv->isDeclaration() ) { //gv is a global variable return false; } //gv is not a declaration //Enumerable attributes could add new constants //on Stack Objects if ( pty->getScalarType() == nullptr ) { return false; } //The Pty pointer is not a scalar type return true; } //gv is used in only one function" LLVM,NVPTX,337,"; } NUM_LIT = 0" LLVM,NVPTX,338,") table [ key ]; } 7" LLVM,NVPTX,339,"val ; NUM_LIT + 1" LLVM,NVPTX,340,", Globals ) ; } } i = 0" LLVM,NVPTX,341,"; " LLVM,NVPTX,342,") ; ""Emitting code for the target machine.""" LLVM,NVPTX,343," EmitRawText (""# Loop start""); }" LLVM,NVPTX,344,"Buffer ) ) <\s> This code snippet checks if the given MBB (MachineBasicBlock) is a loop header that should not be unrolled. If it is, the OutStreamer will emit the raw text contained in the Buffer string reference." LLVM,NVPTX,345,"( ) ; The continue statement causes the program to continue to the next iteration of the loop." LLVM,NVPTX,346,"); //Emits the raw text of the string literal to the OutStreamer" LLVM,NVPTX,347,"( Directive )); It will emit the given string as raw text." LLVM,NVPTX,348,") ; unsigned Opc1 = Nvptx::STLW_PP; unsigned Opc1 = Nvptx::STLW_PP unsigned Opc2 = Nvptx::MOV;" LLVM,NVPTX,349,"( ) ) ""}""" LLVM,NVPTX,350,") ; emitFunctionBody(F) ;" LLVM,NVPTX,351,"( ) ; AsmPrinter :: emit(} AsmPrinter :: emitDef (RegNo); }" LLVM,NVPTX,352," << mincta << << endl ; ""Enter the specified thread dimensions and maximum thread dimensions into the output stream.""" LLVM,NVPTX,353,"stream ; stream << ""Output text from "" << fileName << "" file at line "" << curLoc.getLine();" LLVM,NVPTX,354," ; } > ""'global variable has external linkage and is not a declaration or has an initializer'""" LLVM,NVPTX,355," ; ""case llvm :: ADDRESS_SPACE_GENERIC: O << ; break;""" LLVM,NVPTX,356,"c_str ( ) ) ; ""The line from the file is added to the end of the temporary string.""" LLVM,NVPTX,357,"OS ) { > This function emits the specified virtual register to the provided raw output stream." LLVM,NVPTX,358," (... Missing a closing brace parenthesis after the addRequired statement." LLVM,NVPTX,359," ; ""0""" LLVM,NVPTX,360,"reader ; { The function returns the reader object, which contains the data from the specified file." LLVM,NVPTX,361,"-> nextLine ( ); It deletes the current reader, creates a new one with the specified filename, and then returns the next line from the new reader." LLVM,NVPTX,362,"Expr ) ; "" returns a MCOperand, which is created using the MCExpr obtained by calling MCSymbolRefExpr::create() with the given Symbol, along with a Virtual Kind and the Output Context specified by the AsmPrinter's ISA_LIT.""" LLVM,NVPTX,363," Parser::encodeSymbolRef(const MCInst &MI, const struct MCOperand &MO, raw_ostream &OS) const { if (MO.isExpr()) throw std::invalid_argument(""Symbol operand should be an expression.""); // We use the MCValue class to represent the state of the symbol reference. return Parser::encodeSymbolRef(MI, MO, OS); // Return the encoded value as a string std::string encodedValue = ""Encoded symbol value""; return encodedValue; }" LLVM,NVPTX,364,"); ""the mapped virtual register is found in the register map.""" LLVM,NVPTX,365,"( ) ); ""returns true if the value stored at PI is not equal to or """ LLVM,NVPTX,366,"iterator It = ImageTypeName . find ( Ty if (It == ImageTypeName.end()) { return true; } else { return false; }" LLVM,NVPTX,367,"( & MBB ) ) ) { // do something when 'PMBB' is not the same as the current basic block's looping parent - PMBB is not part of MBB structure or heirarchy }" LLVM,NVPTX,368,") ) { // This code snippet checks if the passed in basic block is a loop header and returns false if it is not. // It then loops through all the predecessors of the basic block and checks if they belong to the same loop as the passed in block. // If they do not, the loop continues and checks the next predecessor. // If a predecessor belongs to the same loop, the corresponding basic block is retrieved and stored in the variable PBB." LLVM,NVPTX,369,"c_str ( ) ) ; } 42" LLVM,NVPTX,370,"AsmPrinter ) registers the Target64AsmPrinter as the AsmPrinter for the specified ISA_LIT architecture." LLVM,NVPTX,371,"(TheTarget); } This code snippet registers the AsmPrinter class with the LLVM framework for the target." LLVM,NVPTX,372,". getSExtValue ( ) ; constantexpr the operand at index 0 is list of GEPOperator, regardless of whether it is a constant fold or not." LLVM,NVPTX,373,"false ; } The function lowerImageHandleOperand returns a boolean value that indicates whether the given operand is a symbolic constant or not." LLVM,NVPTX,374,"SymNamePtr ) ) ) ; This code creates a pointer called SymNamePtr that points to a string in the managed string pool using the nvTM.getManagedStrPool() function. It then calls the getManagedString() function on the managed string pool with the parameter 'Sym', which is a symbol name. Finally, it sets the MCOp variable to the symbol reference retrieved from calling the GetSymbolRef() function with the parameter of the symbol that was created or retrieved using the OutContext.getOrCreateSymbol() function with the parameter of a StringRef object created with the SymNamePtr pointer." LLVM,NVPTX,375,":: MO_ExternalSymbol : MCOp = MCOperand::createExtSymbol(MO.getSymbolName());" LLVM,NVPTX,376,". addOperand ( MCOp ) ; ""The operand from MI is added to OutMI if the lowerOperand function is successful.""" LLVM,NVPTX,377," ) ; } if ( const Instruction * I = dyn_cast < Instruction > ( ) ) { if ( const GlobalValue * GV = ->getOperand ( 0 ) ) { if ( const DATA_LIT> . ""nSym""" LLVM,NVPTX,378,"']' ; } The function PrintAsmMemoryOperand returns a boolean value indicating whether the operation was successful." LLVM,NVPTX,379,"} ""prints the given machine instruction, operand number, assembly variant, and any additional code to the specified output stream.""" LLVM,NVPTX,380," ) ; ""0""" LLVM,NVPTX,381,"; break ; } if the right-hand side of the binary expression is a constant, and its value is less than the value specified by , the constant's value is printed. Otherwise, the '+' operator is printed." LLVM,NVPTX,382,"MI MI -> getOperand ( opNum + 1 ) .getReg() "" The last statement of this code snippet is: printOperand(MI, opNum + 1, O);" LLVM,NVPTX,383,case MachineOperand :: MO_Immediate : O << MO . getImm ( ) ; break ; } LLVM,NVPTX,384,"const TargetRegisterClass registerClass ) { The ISA used for assembly language is the correct parameter for the function." LLVM,NVPTX,385,"N , [x y] ) The [x y] represents the parameters that will be passed to the print function." LLVM,NVPTX,386,Returns the function identifier of the function LLVM,NVPTX,387,") ; { ISA_LIT }" LLVM,NVPTX,388," ] ; } The last statement is: O << vecelem [ Imm % ] ;" LLVM,NVPTX,389," ; O << << vecelem [ Imm % ] ; if ( == strcmp ( Modifier , ) ) { if ( Imm == ) { O << << vecelem [ Imm % ] ; } else if ( ( Imm < ) || ( Imm > ) ) { O << ; } }" LLVM,NVPTX,390,"i ; OutStreamer -> EmitDwarfFileDirective ( i , , Filename ) ; ++ i ; } } The last statement of this code snippet is: ""}""" LLVM,NVPTX,391,") ; with nvptxSubtarget set according to the given F parameter. nvptxSubtarget = &F.getSubtarget(); return AsmPrinter::runOnMachineFunction(F, *nvptxSubtarget);" LLVM,NVPTX,392,"F ) ; }\ return AsmPrinter::runOnMachineFunction(F); }" LLVM,NVPTX,393,"{ 0" LLVM,NVPTX,394,"; i ++ ) { 0; }" LLVM,NVPTX,395,") { This snippet checks if each user in the ""users"" list of an object of type C is also an object of type Constant, and if so, assigns it to a variable C." LLVM,NVPTX,396,"curFunc ; } This code snippet checks if a given instruction belongs to a specific function, and returns False if the instruction's parent or grandparent is not the expected one." LLVM,NVPTX,397,") ) { The instruction has already been seen." LLVM,NVPTX,398,"String linuxPath, String filename) { ~ => Also accept a System.Windows.FileStream object for parameters as `linuxPath` and `filename`" LLVM,NVPTX,399,") ; } The code snippet above defines a destructor for the LineReader class." LLVM,NVPTX,400,"- ~AsmPrinter ( ) { ~ AsmPrinter ( ) { if ( ! reader ) delete reader; }" LLVM,NVPTX,401,"GV ; The last statement of this code snippet assigns the cleaned up name to the variable GV, which is then returned." LLVM,NVPTX,402,"C ; } } Name.size() - 1 ; ""}" LLVM,NVPTX,403,"; This code snippet is iterating through all global variables and functions in a module and setting their names to a cleaned up version if they have local linkage. The function is returning a boolean value of ""true""." LLVM,NVPTX,404,". setLinkage ( GlobalValue :: , LocalLinkage );" LLVM,NVPTX,405,"caseAlphaString(string); AtomicLowercaseAlphaString(string);" LLVM,NVPTX,406,"ISA) { FunctionPass * llvm::createAtomicLowerPass(ISA) { return new AtomicLowerPass(ISA); }" LLVM,NVPTX,407,"true ) ; o AU.setPreservesAllAnalyses();" LLVM,NVPTX,408,"��ArgumentPass""; } The getPassName function returns the name of the pass, which is ""ArgumentPass""." LLVM,NVPTX,409,"= false ; The AtomicLower :: runOnFunction method iterates through all instructions in the given function F, checks if each instruction is an AtomicRMWInst, and if so, adds it to the LocalMemoryAtomics vector. The method then sets the initial value of the boolean variable Changed to false." LLVM,NVPTX,410,"( ) != AddressSpace :: ADDRESS_SPACE_GENERIC );" LLVM,NVPTX,411,"0 ) ) ; This code snippet is used to eliminate unnecessary address space casts from a GEP (GetElementPtr) instruction." LLVM,NVPTX,412,"; ""with the appropriate information passed into the getAddrSpaceCast function.""" LLVM,NVPTX,413,"getSourceElement ""> , GEP->isInBounds());" LLVM,NVPTX,414,"( I ) ) { Changed |= optimizeMemoryInstruction ( & I , ) ; } } } optLevel" LLVM,NVPTX,415,"); } 1 true." LLVM,NVPTX,416,"; 1. // This function checks if the given value `V` contains a hoistable address space cast, and if it does, it hoists the cast to its immediate uses. Otherwise, it returns false. 2. 10;" LLVM,NVPTX,417,"false ; 10" LLVM,NVPTX,418,"( Src ) , TypeOfNewCast ) ; Constant * NewBC = ConstantExpr :: getAddrSpaceCast ( NewCast , ) ; NewBC->takeName(BC); BC->replaceAllUsesWith(NewBC);" LLVM,NVPTX,419,", ) ) ; } = 0" LLVM,NVPTX,420,"getOperand ( 0 ) ) , Indices , , GEPI ) ; ""nullptr""" LLVM,NVPTX,421,">; return new FavorNonGenericAddrSpaces();" LLVM,NVPTX,422,"Assume PointerAuth(); return new FavorNonGenericAddrSpacesAssumePointerAuth();" LLVM,NVPTX,423," The code snippet returns a pointer to a null object if neither of the two previous if statements are executed." LLVM,NVPTX,424,"TypeOfNewCast ) ; NewBC = new AddrSpaceCastInst ( NewCast , BC -> ->getType(), , BC);" LLVM,NVPTX,425," ) ; NewASC = ConstantExpr :: getAddrSpaceCast ( NewGEP , GEP -> getType ( ) , ) ; GEP -> replaceAllUsesWith ( ) ; NUM_LIT: 1 STR_LIT: ""GEPI""" LLVM,NVPTX,426,") { The source and destination types are not equal. }" LLVM,NVPTX,427," Idx );" LLVM,NVPTX,428,") ; I != IE ; ++ // I want to iterate over all of the basic blocks in a function in order to check if there are any non-generic functions that can be optimized." LLVM,NVPTX,429,"> ( I ) ) { Changed |= optimizeMemoryInstruction ( I , NUM_LIT ) ." LLVM,NVPTX,430,"; ' 'My 'Function' will delete any call frames in a machine." LLVM,NVPTX,431,"MachineBasicBlock :: iterator MI ) const { // logic here to eliminate current instruction } This function is responsible for eliminating a call frame pseudo instruction from the given machine function, block, and iterator." LLVM,NVPTX,432, ) LLVM,NVPTX,433,"false ; This code snippet returns a boolean value indicating if the machine function has a frame pointer, with a default value of false." LLVM,NVPTX,434,"MF ) const { auto &MFI = MF.getFrameInfo(); return MFI.hasCalls() || MFI.hasVarSizedObjects() || MFI.isFrameAddressTaken();} " LLVM,NVPTX,435,"); This function eliminates the call frame pseudo instruction and returns an iterator to the next instruction in the machine basic block." LLVM,NVPTX,436," {}) { This function is used to eliminate call frame pseudo instructions in a specific machine function." LLVM,NVPTX,437,") ; assert(NRI && ""Register info not found!"");" LLVM,NVPTX,438,") const { return lower(FrameLowering :: getDwarfFrameBase ( MF )); } The last statement of this code snippet returns the lower value of DwarfFrameBase based on the MachineFunction MF." LLVM,NVPTX,439,"getFrameRegister ( MF ) ; If the given frame index (FI) is not fixed, then the function will return the value of the frame register (FrameReg) added with the stack offset (StackOffset) and the literal value of the given instruction set architecture (ISA_LIT)." LLVM,NVPTX,440,"getCallFrameIndexSize ( ) ) ; MR (machine register), MI (machine code instruction), MBB (machine basic block), dl (debug location), MF (machine function), CVTA_LOCAL (opcode for converting to local addresses), MOV_DEPOT (opcode for moving a register), R11_64 (64-bit register), R10_ST2 (stack pointer in ST2 register)" LLVM,NVPTX,441,"MFI ? MFI : RFP ; return FI ; } The last statement of this code snippet is: ""return FI ;""" LLVM,NVPTX,442,") ; Target Opcode ADD #$0, R0, R1""" LLVM,NVPTX,443,") "" will eliminate the pseudo-instructions related to call frames in the specified MachineBasicBlock using the provided iterator.""" LLVM,NVPTX,444,"I ) and return true; }" LLVM,NVPTX,445,"{ Operand number two of the llvm::AMDGPU::S_LOAD_DWORD instruction, LocalReg." LLVM,NVPTX,446,"hasFP ( MF ) AcceleratorSnapshot < /s> { ? ? ? getFPReg ( ) : ? ?; }" LLVM,NVPTX,447,". getFirstInsertionPt ( ) ) ; return true; }" LLVM,NVPTX,448,"; Function * CVTAFunction = llvm :: Intrinsic :: getDeclaration ( M , llvm :: Intrinsic::generic_address_space_conversion, ParamTypes) ; ""llvm::Intrinsic::generic_address_space_conversion, ParamTypes);""" LLVM,NVPTX,449,") , llvm :: ADDRESS_SPACE_GENERIC ) ) group `Function::Create(M, ""CVTA"", ParamTypes)`" LLVM,NVPTX,450,"NewValue ; } else { NewValue = C; }" LLVM,NVPTX,451,( LLVM,NVPTX,452,"; } assert (GVMap.empty() && ""The remapping should have been done on Global Variables seen in \ module M"");" LLVM,NVPTX,453,"{ VoidType::get(context); ""llvm::ADDRESS_SPACE_GENERIC)""" LLVM,NVPTX,454,"-> getAddressSpace ( ) ;Type * PtrType = PointerType::get(ExtendedGVType.getTypeForEVT(Context), AddrSpace); Type * Int8Type = Type::getInt8Ty(Context); Type * GVPtrType = PointerType::get(Int8Type, AddrSpace); Value * GVPtr = Builder.CreatePointerCast(GV, GVPtrType); Value * CVTAAddr = Builder.CreateGEP(Int8Type, GVPtr, ArrayRef [ConstantInt::get(Type::getInt32Ty(Context), 0) , ConstantInt::get(Type::getInt32Ty(Context), 0)]); CVTA" LLVM,NVPTX,455,"-> getValueType ( ) < = 0 and cast < GlobalVariable > ( p.second ) -> isDeclaration ( ) ) // the value assigned in the last statement is 0." LLVM,NVPTX,456,"{ ; i < e" LLVM,NVPTX,457,"-> getName ( ) ; GV -> eraseFromParent ( ) ; The final statement is: remove all global variables from GVMap, replace all uses of the original global variables with bitcasts of the new global variables, erase the original global variables from the parent module, and erase the constant-to-value mapping." LLVM,NVPTX,458,", SubmittedCode , ) ; LLVMContext llvm::ADDRESS_SPACE_GENERIC" LLVM,NVPTX,459,) ) { NewValue = r LLVM,NVPTX,460,"; This code snippet creates a new value, 'NewValue', by checking if the input constant is a global variable, a constant aggregate, or a constant expression and retrieving or remapping the respective value, and finally maps the input constant to the newly created value in the 'ConstantToValueMap' map." LLVM,NVPTX,461,"++ i ) { NewValue = Builder . CreateInsertValue ( NewValue , NewOperands [ i ] , ) ; } } i = 0;" LLVM,NVPTX,462,"E ; ++ I ) 0" LLVM,NVPTX,463," ] , makeArrayRef ( & NewOperands [ ] , NumOperands - ) ) ; : The return type is determined based on the opcode of the instruction." LLVM,NVPTX,464," ) ; return C ; } ""0""" LLVM,NVPTX,465,"{ if (GV->getType()->getAddressSpace() == llvm::ADDRESS_SPACE_GENERIC && !llvm::isTexture(*GV) && !llvm::isSurface(*GV) && !GV->getName().startswith(""llvm."")) { GlobalVariable *NewGV = new GlobalVariable(M, GV->getType()->getElementType(), GV->isConstant(), GV->getLinkage(" LLVM,NVPTX,466,"; The function remapConstants is called to remap all the constants in the module M to their new values for the transformed module." LLVM,NVPTX,467,". ( G ) ; if ( I != GVMap . end ( ) ) { OperandChanged = true ; NewOperand = ConstantAsMetadata :: get ( I . ( ) ) ; } } } NewOperands . push_back ( NewOperand ) ; } N -> ( NewOperands ) ; } ""return N;""" LLVM,NVPTX,468,") . begin ( ) ) ; The string literal used in the statement above is ""\\01__unnamed_global_"" ." LLVM,NVPTX,469,"named_metadata_end ( ) ; I != E ; ++ I ) { if ( ! _GLOBALS_ < 2 , < 2 , Operands; I->getName().equals(""_GLOBALS_"")) {I->eraseFromParent()}; e = I->getNumOperands() ; or e = I->getNumOperands() - 1 ;" LLVM,NVPTX,470,"; ""CVTAFunction""" LLVM,NVPTX,471,"CVTA llvm :: Intrinsic :: getDeclaration ( M , llvm :: Intrinsic :: convert_from_ty , ParamTypes ) ;" LLVM,NVPTX,472,"( ) ; } e = II -> getNumOperands ( ) ; ++ i ) II -> setOperand ( i , remapConstant ( & M , I , cast < Constant > ( Operand ) , Builder ) ) ;" LLVM,NVPTX,473,") { //Remap constants from metadata map to values that are reachable from the module }" LLVM,NVPTX,474,") ; } This code snippet creates a new instance of the GenericToNVVM pass, which converts generic LLVM code to NVVM (NVIDIA Virtual Machine) code." LLVM,NVPTX,475,"PARAM_VALS_ADDRSPACE ) ) ; The code snippet converts a global variable into a pointer to the specified address space." LLVM,NVPTX,476,") ; < STR_LIT is ""gv."" >" LLVM,NVPTX,477,"cleanupValue ( DecomposeInitEVT ( EVT::fromType ( MVT::f32 ) , VT ( MVT::i32 ) ) ) ; The last statement returns a cleaned up value after decomposing an initial EVT with a float type of 32 bits and a vector type of 32 bits." LLVM,NVPTX,478,"else if ( isBuffer ( * TexHandle ) ) { replaceWith ( & I , ConstantInt :: getFalse ( I . getContext ( ) ) ) ; return true ; } else { return false ;} The code snippet checks if the handle referred to by ""TexHandle"" is a sampler, image, or buffer. If none of these cases are met, the function returns false." LLVM,NVPTX,479,"getContext ( ) ) ) ; return true ; } The replaceIsTypePSurface function looks for image read and write instructions and replaces them with a value of ""true"" in the instruction's context." LLVM,NVPTX,480,"; } This code snippet checks if *TexHandle is an image or sampler, and if it is, it replaces the instruction with a ConstantInt value of false and returns true. Otherwise, it returns false." LLVM,NVPTX,481,"( a value used for sampling or indexing an image, and therefore cannot be replaced using DCE." LLVM,NVPTX,482,"( ); } } To ? getSuccessor? Use the operand of Something * Dest;" LLVM,NVPTX,483,") ; " LLVM,NVPTX,484,"i ) { Switch statements end with a ""default"" case that executes if no other cases match." LLVM,NVPTX,485,"( ) ) ; } }// 1 -> getPointerIndexType ()" LLVM,NVPTX,486,"I , PostorderStack , Visited ) ; } } isa (I) Why-is-the-last-statement-a-static- The last statement of this code snippet is ""if (isa (I))."" This code tests if the instruction is a LoadInst, which is used to initialize the value (operand) of the given instruction. The purpose of this code is to append generic address expressions to the postorder stack and track visited addresses in the function." LLVM,NVPTX,487,"Visited ) ; */ Furthermore, if the current instruction is neither a load nor a store, then the address expression of its operands is also added to the postorder stack." LLVM,NVPTX,488,"... InferAddressSpaces ();" LLVM,NVPTX,489,"Clause(); The last statement of this code snippet is ""return new InferAddressSpacesClause();""." LLVM,NVPTX,490,"0 ), Op . }; 2;" LLVM,NVPTX,491,"User ) ; ""Updating address space of value to:""" LLVM,NVPTX,492,"; default: return false; }" LLVM,NVPTX,493,"I ) ; I -> } } ""InsertPos is set to the next instruction in the basic block after V.""" LLVM,NVPTX,494,"InferredAddrSpace ); The purpose of these two lines is to collect all generic address expressions in function F and infer their address spaces using the inferred address space map InferredAddrSpace." LLVM,NVPTX,495,"InferredAddrSpace ) ; The inferred address spaces are stored in the InferredAddrSpace map." LLVM,NVPTX,496,"; The function first checks if the inferred address space contains the pointer operand. If it does, the address space value is looked up and assigned to the OperandAS variable. Otherwise, if it does not contain the pointer operand, the address space value is retrieved from the pointer operand's type and assigned to the OperandAS variable. The function then combines the new address space value with the OperandAS value using the joinAddressSpaces function. If the resulting new address space value is equal to the generic address space value, the function breaks. Next, the old address space value for the variable V is retrieved and assigned to the OldAS" LLVM,NVPTX,497,"raw_ostream & O , uint64_t Features) { ) const {}" LLVM,NVPTX,498,") O << ; else Utils :: report_fatal_error ( ) ; */ If none of the if or else if statements are true, the following statement will be executed: Utils :: report_fatal_error ( ) ;" LLVM,NVPTX,499,"""Unhandled relocation modifier"" ); ""llvm_unreachable(""Unhandled relocation modifier"");""" LLVM,NVPTX,500,") ; ""It is an expression and needs to be printed using the instruction's address information.""" LLVM,NVPTX,501," ; In this code snippet, a switch statement is being used to output string literals based on a variable RegNo, and the switch case is also checking for different number literals. The last statement checks if the variable RegNo is equal to a specific number, then it will be bitwise ANDed with the number literal (represented by ) before being assigned to the unsigned variable VReg." LLVM,NVPTX,502,"Annot , const MCSubtargetInfo & STI ); The printInst function functions as an instruction printer for an MCInst in the MCSubTargetInfo *STI, displaying its raw ostream along with additional annotations and descriptive output." LLVM,NVPTX,503,":: RTZ : O << ; break ; case :: RDM : O << ; break ; ""O << Imm & NVPTXMCExpr::LO ;""" LLVM,NVPTX,504,"~IsDef ; The variable VReg is set equal to the logical AND of RegNo and the inverse of IsDef." LLVM,NVPTX,505," MAI, MII, MRI, STI) {...}" LLVM,NVPTX,506,default: O << "Invalid comparison type"; LLVM,NVPTX,507," ; break ; } In the last statement, the code reads , which is a placeholder for a string literal that would be printed depending on the case of the mask." LLVM,NVPTX,508,") ; nothing" LLVM,NVPTX,509,"Annot ) { printInst( const MCInst *MI, raw_ostream &OS, StringRef Annot ) { printInstruction( MI, OS ) ; printAnnotation( OS, Annot ) ; }" LLVM,NVPTX,510,"MI ) will print the instruction and annotation together." LLVM,NVPTX,511," ) ) { ...> ""GENERIC""" LLVM,NVPTX,512,"getExpr ( ) ; ""the operand is an expression""" LLVM,NVPTX,513,"getName ( ) ; , it will output the name associated with the symbol referred to in the expression." LLVM,NVPTX,514,"addReg ( SrcReg , getKillRegState ( KillSrc ) ) ; else if ( DestRC == & ) BuildMI(MBB, I, DL, get(ADD), DestReg).addReg(SrcReg, getKillRegState(KillSrc)).addReg(SrcReg2); This else if statement checks if the destination register class is equal to a certain string and creates a new machine instruction if it is." LLVM,NVPTX,515,"; } , FBB must not be null." LLVM,NVPTX,516, LLVM,NVPTX,517,"= ( DestRC == & ) { Op = ( SrcRC == & ? str : mov ) ; } else if ( DestRC == & ) { Op = ( SrcRC == & ? xor : or ) ; } else { llvm_unreachable ( ""Invalid register class"" ) ; } BuildMI ( MBB , I , DL , get ( Op ) , DestReg ) = If none of the previous conditions are met, the statement will print ""Invalid register class"" and be followed by a BuildMI method." LLVM,NVPTX,518,"addMBB ( FBB ) ; 2 2 or 1" LLVM,NVPTX,519,"; The last statement of this code snippet is ""return ;""" LLVM,NVPTX,520,") ) return ; -- I ; The assertion is checking whether the iterator I for machine basic block (MBB) is actually at the end of the block. If I is not at the end, the code will continue to check if the current instruction opcode is not equal to or and if it is not, it will erase the instruction from its parent. If I is still not at the end after that, it will then be decremented again and checked, and the process will continue until I reaches the beginning of the block. If I is at the beginning and" LLVM,NVPTX,521,[ ] . get LLVM,NVPTX,522," ) { Op = ( SrcRC == & ? : ) ; } ""Invalid register class sizes. Cannot process instruction.""" LLVM,NVPTX,523,"true ; The second last instruction is a store literal (STR_LIT) and the last instruction is also a store literal, so the block is not a conditional branch." LLVM,NVPTX,524,") ; The statement to be completed is: ""This code is used to set the operation (Op) based on the given destination register (DestRC) and source register (SrcRC) values.""" LLVM,NVPTX,525,"( FBB ) ; This code is building a control flow instruction that checks if the condition is empty. If it is empty, it adds the target basic block (TBB) to the instruction. Otherwise, it adds the register corresponding to the condition (Cond) and the fallthrough basic block (FBB) to the instruction." LLVM,NVPTX,526,"; ""Invalid destination register class""" LLVM,NVPTX,527,"( ) , DestReg ) BuildMI(MBB, I, DL, get(), DestReg).addReg(SrcReg, getKillRegState(KillSrc)).addReg(, getKillRegState(KillDest)) ; .addReg(SrcReg, getKillRegState(KillSrc)).addReg(DestReg, getKillRegState(KillDest));" LLVM,NVPTX,528,") { Op = ( SrcRC == & ? : ) ; } ""If the destination register class differs in size from the source register class, the program will terminate with a fatal error.""" LLVM,NVPTX,529,"( Cond . size ( ) == && Cond [ ] . isMBB ( ) ) ) && ""Cannot insert a conditional branch without a condition shadowed byELING ""Cannot insert a conditional branch without a valid destination basic block.""" LLVM,NVPTX,530,". getMBB ( ) ; Cond . push_back ( SecondLastInst . getOperand ( ) ) ; FBB = LastInst . getOperand ( ) . getMBB ( ) ; } The statement is: if all previous conditions are not met, the function will return true." LLVM,NVPTX,531,"error ""We must assign a numerical value to the 'addrspace' variable in order to check if the instruction is a load instruction using the 'isLoadInstr' function.""" LLVM,NVPTX,532,"); ...and retrieve the immediate value at the specified operand index, ." LLVM,NVPTX,533," ) . getMBB ( ) ; Cond . push_back ( SecondLastInst -> getOperand ( ) ) ; return false ; } If the SecondLastInst and I are both not null and I is not equal to MBB begin, and I is an unpredicated terminator, then return true." LLVM,NVPTX,534,"false If the address space is not shared, return true." LLVM,NVPTX,535,", DestReg ) . addReg ( SrcReg , getKillRegState ( KillSrc ) ) ; The statement cannot be completed as it lacks information to properly execute. The code snippet is missing the necessary conditions and function calls in order to accurately complete the statement." LLVM,NVPTX,536,"; " LLVM,NVPTX,537,"*Info ; } RegisterInfo is a function bool which declare the RegisterInfo variable to get information about the ISA registers and contains a constant reference to the Info variable." LLVM,NVPTX,538,"] ) . addMBB ( TBB ) ; } if ( FBB == 0 ) { //Condition is false (0) in this case if ( Cond . empty ( ) ) BuildMI ( & MBB , DL , get ( ""JMP"" ) ) . addMBB ( TBB ) ; //Jump (JMP) to TBB if condition is empty else BuildMI ( & MBB , DL , get ( ""JMP"" ) ) . addReg ( Cond [ 0 ] ) . addMBB ( TBB ) ; //Jump to TBB if" LLVM,NVPTX,539,"src . isReg ( ) ) ; The MachineInstr and MachineOperand classes are used for representing instructions and operands in LLVM." LLVM,NVPTX,540,"getOperand ( ) ; TSFlags & 1 >> 0; isMove = (TSFlags == 1); if (isMove) { MachineOperand dest = MI.getOperand(0); MachineOperand src = MI.getOperand(1); }" LLVM,NVPTX,541,"; } 0;" LLVM,NVPTX,542,"V ) ) return GV->hasInternalLinkage();" LLVM,NVPTX,543,"""Squared Instructions""} ""We return the name of this pass, which is ""Squared Instructions"".""" LLVM,NVPTX,544,") const override { return ""HelloWorld | ; } }" LLVM,NVPTX,545,") ) ; This code snippet is casting the entire MF into a const Subtarget and storing the result in a variable called Subtarget." LLVM,NVPTX,546,"get_operand ( ) ; } NUM_LIT : 0 STR_LIT : ""invalid opcode""" LLVM,NVPTX,547,"on , TL -> FMAstate ); This code snippet returns the status of the FMA (floating-point multiply-add) feature, which can either be enabled or disabled based on the value of the FMAstate variable in the TL (Thread Level) object." LLVM,NVPTX,548,") , Objs , IsKernelFn ) ; return all_of ( Objs , ( [=] ( const Value * V ) { V->getType()->canSafelyCastTo(Type::PointerTy)->getAddressSpace() == 0 }));" LLVM,NVPTX,549,"-> isConstant ( ) || GV -> is ThreadLocal ( ) ; Volatile." LLVM,NVPTX,550,"; :: PARAM ; } } :: PARAM ;" LLVM,NVPTX,552,"FROM_TARGET FROM_TARGET" LLVM,NVPTX,553,"); returns the target's information for register allocation and instruction selection." LLVM,NVPTX,554,"( ) ; The getDivF32Level function returns the division level for floating point values." LLVM,NVPTX,555," MVT::i32 ); } which specifies the argument type of the value that the function returns." LLVM,NVPTX,556,"getFilterName;} ""{}""" LLVM,NVPTX,557,": return CmpMode :: LE ; case : return CmpMode :: NE ; return CmpMode::IGNORE;" LLVM,NVPTX,558,") ; } 1 1 0" LLVM,NVPTX,559,") ; It calls SelectionDAGISel::runOnMachineFunction(MF), which returns a boolean value indicating whether the function was successfully processed by the SelectionDAGISel." LLVM,NVPTX,560,"Indx ); ""the result of the function SelectADDRri_imp, for the given OpNode, Addr, Base, and Indx.""" LLVM,NVPTX,561,"Offset , getTargetLowering()) ; return SelectADDRri_imp(OpNode, Addr, Base, Offset, getTargetLowering()); }" LLVM,NVPTX,562,"Limit , segment ); This statement returns the result of invoking the SelectADDRri_imp function with the given parameters: OpNode, Addr, Base, Limit, and segment." LLVM,NVPTX,563,"unsigned OffsetSize } unsigned OffsetSize) { return true; } " LLVM,NVPTX,564,") STORE) return false;" LLVM,NVPTX,565,"SDValue & Offset ) This function selects the appropriate base and offset values for an address instruction based on the given opcode." LLVM,NVPTX,566,", segmentSize ); , segmentSize );" Compiler Type,Target,Idx,Code LLVM,NVPTX,567,") ; }" LLVM,NVPTX,568,") const { return false; }" LLVM,NVPTX,569,") ? : ) : ; break ; case ADDRESS_SPACE_CONST : Opc = TM . is64Bit ( ) ? ( useShortPointers ( ) ? : ) : ; break ; case ADDRESS_SPACE_LOCAL: Opc = TM.is64Bit() ? (useShortPointers() ? : ) : ; break;" LLVM,NVPTX,570,") { if ( ! isInt Immediate ( N . getOperand ( 0 ) ) ) return false ; Address = N . getOperand ( 0 ) ; return true ; } return false ; store instruction or load instruction" LLVM,NVPTX,571,"( ), CastN -> getOperand ( ) . getOperand ( ), CastN); ) != nullptr) return SelectDirectAddr(CastN -> getOperand (1) -> getOperand (), CastN -> getOperand (2) -> getOperand (), CastN);" LLVM,NVPTX,572,") { OutOps.push_back(Op0); OutOps.push_back(Op1); return true; }" LLVM,NVPTX,573,") ; false ) ; return false ; } if ( SelectADDRri ( Op . getNode ( ), Op , Op0 , Op1 ) ) { OutOps . push_back ( Op0 ) ; OutOps . push_back ( CurDAG -> getTargetConstant ( Op1 . getConstantValue ( ) , SDLoc ( Op ) , ""u32"" ) ) ; return false ; }" LLVM,NVPTX,574,"NodeMachineOpcode ); SetP will be used to set the pointer values for the machine node associated with the machine opcode specified by NodeMachineOpcode." LLVM,NVPTX,575,", N -> getValueType ( ) ... ); SetP->addOperand(CurDAG->getTargetConstant(PTXCmpModifier, DL, N->getValueType(0)));" LLVM,NVPTX,576,"s getValue (0); Wrapper -> is an SDValue which the process selects for texture surface handling." LLVM,NVPTX,577,"( 0 ) ; \nparam\code{Wrapper}is assigned to be the first operand of node \code{N} in the function. }" LLVM,NVPTX,578,", N->getValueType()); This code snippet checks if the value type of the node ""N"" is not equal to a string literal and if so, returns false. It then creates a new SDValue named ""Val"" using the getTargetConstantFP function of the current DAG, passing in the value and location of the node ""N"" along with its value type, which is a numeric literal." LLVM,NVPTX,579,"; ""ARM::MOVi16_ga_pcrel"" ." LLVM,NVPTX,580,"true ; } ""the function 'SelectTexSurfHandle' is called with the parameter N and the statement returns true.""" LLVM,NVPTX,581,"> ""FrameIndex""" LLVM,NVPTX,582,"EltVT ) ; } if ( VecSize == ) { VTs = CurDAG -> getVTList ( EltVT , EltVT ) ; } else { VTs = CurDAG -> getVTList ( EltVT , EltVT , EltVT ) ; }" LLVM,NVPTX,583,"getI32Imm ( toType , dl ) , getI32Imm ( toTypeWidth , dl ) , Base , Offset , Chain } ; ST = CurDAG -> getMachineNode ( Opcode . getValue ( ) , dl , , Ops ) ; ""MRI.GetValue(Value.getNode()->getNumOperands() - 1)""" LLVM,NVPTX,584,", Ret ) ; End The last statement of this code snippet is ""End""." LLVM,NVPTX,585,"( ) ; The function useF32FTZ() is used to determine whether to flush denormal floating point numbers to zero in the target machine's floating point rounding mode." LLVM,NVPTX,586,") -> isEnableAddressSanitizer ( ) . This code returns a boolean value indicating whether the target architecture's loweri" LLVM,NVPTX,587,return TM . NoSuchElementException if no such element exists LLVM,NVPTX,588,") the source value has not been found." LLVM,NVPTX,589,"= 0;" LLVM,NVPTX,590," : ResNode = SelectCas ( N ) ; case : ResNode = SelectStoreParam ( N ) ; break ;" LLVM,NVPTX,591,"0 ))) { Return false;" LLVM,NVPTX,592,"SDLoc(Addr), MVT::i16 ); } 1" LLVM,NVPTX,593," , , , , , ) ; break ; case : Opcode = pickOpcodeForVT ( EltVT . getSimpleVT ( ) . SimpleTy , , , , None , , , , None ) ; break ; } } else { switch ( N -> getOpcode ( ) ) { default : return false ;" LLVM,NVPTX,594," ) ; break ; } ""Ops.push_back(Ops);""" LLVM,NVPTX,595,"( Cvt , ) ; break ; } 0" LLVM,NVPTX,596,"Out) const returns true if the given OpNode represents a valid ADDR instruction, and stores the selected instruction in the Out parameter." LLVM,NVPTX,597,"Size ) < \s>