text: /*
   * Copyright 2004-2018 Cray Inc.
   * Other additional copyright holders may be indicated within.
   * 
   * The entirety of this work is licensed under the Apache License,
   * Version 2.0 (the "License"); you may not use this file except
   * in compliance with the License.
   * 
   * You may obtain a copy of the License at
   * 
   *     http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef _LLVMUTIL_H_
  #define _LLVMUTIL_H_
  
  #ifdef HAVE_LLVM
  
  #include <utility>
  
  #include "llvmVer.h"
  
  #include "llvm/IR/IRBuilder.h"
  
  struct PromotedPair {
    llvm::Value* a;
    llvm::Value* b;
    bool isSigned;
    PromotedPair(llvm::Value* a, llvm::Value* b, bool isSigned)
      : a(a), b(b), isSigned(isSigned)
    {
    }
  };
  
  llvm::Constant* codegenSizeofLLVM(llvm::Type* type);
  llvm::AllocaInst* makeAlloca(llvm::Type* type, const char* name, llvm::Instruction* insertBefore, unsigned n=1, unsigned align=0);
  
  llvm::Value* createTempVarLLVM(llvm::IRBuilder<>* irBuilder, llvm::Type* type, const char* name);
  llvm::Value *convertValueToType(llvm::IRBuilder<> *irBuilder, const llvm::DataLayout& targetData, llvm::Value *value, llvm::Type *newType, bool isSigned = false, bool force = false);
  PromotedPair convertValuesToLarger(llvm::IRBuilder<> *irBuilder, llvm::Value *value1, llvm::Value *value2, bool isSigned1 = false, bool isSigned2 = false);
  
  int64_t getTypeSizeInBytes(const llvm::DataLayout& layout, llvm::Type* ty);
  bool isTypeSizeSmallerThan(const llvm::DataLayout& layout, llvm::Type* ty, uint64_t max_size_bytes);
  uint64_t getTypeFieldNext(const llvm::DataLayout& layout, llvm::Type* ty, uint64_t offset);
  
  #if HAVE_LLVM_VER >= 60
  #define TOOL_OUTPUT_FILE ToolOutputFile
  #else
  #define TOOL_OUTPUT_FILE tool_output_file
  #endif
  
  // uncomment to enable prototype Region Vectorizer integration
  //#define HAVE_LLVM_RV
  
  #endif //HAVE_LLVM
  
  #endif //LLVMUTIL_H
  