clang/test/CodeGen/preserve-call-conv.c

   1 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm < %s | FileCheck %s --check-prefixes=CHECK,LINUX
   2 // RUN: %clang_cc1 -triple arm64-unknown-unknown -emit-llvm < %s | FileCheck %s --check-prefixes=CHECK,LINUX
   3
   4 // RUN: %clang_cc1 -triple x86_64-unknown-windows-msvc -emit-llvm %s -o - | FileCheck %s
   5 // RUN: %clang_cc1 -triple aarch64-unknown-windows-msvc -emit-llvm %s -o - | FileCheck %s
   6 // RUN: %clang_cc1 -triple thumbv7-unknown-windows-msvc -emit-llvm %s -o - | FileCheck %s
   7
   8 // Check that the preserve_most calling convention attribute at the source level
   9 // is lowered to the corresponding calling convention attrribute at the LLVM IR
  10 // level.
  11 void foo(void) __attribute__((preserve_most)) {
  12   // CHECK-LABEL: define {{(dso_local )?}}preserve_mostcc void @foo()
  13 }
  14
  15 // Check that the preserve_most calling convention attribute at the source level
  16 // is lowered to the corresponding calling convention attrribute at the LLVM IR
  17 // level.
  18 void boo(void) __attribute__((preserve_all)) {
  19   // CHECK-LABEL: define {{(dso_local )?}}preserve_allcc void @boo()
  20 }
  21
  22 // Check that the preserve_none calling convention attribute at the source level
  23 // is lowered to the corresponding calling convention attrribute at the LLVM IR
  24 // level.
  25 void bar(void) __attribute__((preserve_none)) {
  26   // LINUX-LABEL: define {{(dso_local )?}}preserve_nonecc void @bar()
  27 }