text: // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKBASIC %s
  // RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -emit-llvm -o - %s | FileCheck -check-prefix=CHECKCC %s
  
  int g0;
  // CHECKBASIC: @g0 = common global i32 0
  __thread int TL_WITH_ALIAS;
  // CHECKBASIC-DAG: @TL_WITH_ALIAS = thread_local global i32 0, align 4
  static int bar1 = 42;
  // CHECKBASIC: @bar1 = internal global i32 42
  
  extern int g1;
  extern int g1 __attribute((alias("g0")));
  // CHECKBASIC-DAG: @g1 = alias i32* @g0
  
  extern __thread int __libc_errno __attribute__ ((alias ("TL_WITH_ALIAS")));
  // CHECKBASIC-DAG: @__libc_errno = thread_local alias i32* @TL_WITH_ALIAS
  
  void f0(void) { }
  extern void f1(void);
  extern void f1(void) __attribute((alias("f0")));
  // CHECKBASIC-DAG: @f1 = alias void ()* @f0
  // CHECKBASIC-DAG: @test8_foo = weak alias bitcast (void ()* @test8_bar to void (...)*)
  // CHECKBASIC-DAG: @test8_zed = alias bitcast (void ()* @test8_bar to void (...)*)
  // CHECKBASIC-DAG: @test9_zed = alias void ()* @test9_bar
  // CHECKBASIC: define void @f0() [[NUW:#[0-9]+]] {
  
  // Make sure that aliases cause referenced values to be emitted.
  // PR3200
  static inline int foo1() { return 0; }
  // CHECKBASIC-LABEL: define internal i32 @foo1()
  int foo() __attribute__((alias("foo1")));
  int bar() __attribute__((alias("bar1")));
  
  extern int test6();
  void test7() { test6(); }  // test6 is emitted as extern.
  
  // test6 changes to alias.
  int test6() __attribute__((alias("test7")));
  
  static int inner(int a) { return 0; }
  static int inner_weak(int a) { return 0; }
  extern __typeof(inner) inner_a __attribute__((alias("inner")));
  static __typeof(inner_weak) inner_weak_a __attribute__((weakref, alias("inner_weak")));
  // CHECKCC: @inner_a = alias i32 (i32)* @inner
  // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner(i32 %a) [[NUW:#[0-9]+]] {
  
  int outer(int a) { return inner(a); }
  // CHECKCC: define arm_aapcs_vfpcc i32 @outer(i32 %a) [[NUW]] {
  // CHECKCC: call arm_aapcs_vfpcc  i32 @inner(i32 %{{.*}})
  
  int outer_weak(int a) { return inner_weak_a(a); }
  // CHECKCC: define arm_aapcs_vfpcc i32 @outer_weak(i32 %a) [[NUW]] {
  // CHECKCC: call arm_aapcs_vfpcc  i32 @inner_weak(i32 %{{.*}})
  // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner_weak(i32 %a) [[NUW]] {
  
  // CHECKBASIC: attributes [[NUW]] = { nounwind{{.*}} }
  
  // CHECKCC: attributes [[NUW]] = { nounwind{{.*}} }
  
  void test8_bar() {}
  void test8_foo() __attribute__((weak, alias("test8_bar")));
  void test8_zed() __attribute__((alias("test8_foo")));
  
  void test9_bar(void) { }
  void test9_zed(void) __attribute__((section("test")));
  void test9_zed(void) __attribute__((alias("test9_bar")));
  