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Diffstat (limited to 'test/CodeGen/X86/win32_sret.ll')
| -rw-r--r-- | test/CodeGen/X86/win32_sret.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGen/X86/win32_sret.ll b/test/CodeGen/X86/win32_sret.ll new file mode 100644 index 0000000000..878c6db992 --- /dev/null +++ b/test/CodeGen/X86/win32_sret.ll @@ -0,0 +1,28 @@ +; RUN: llc < %s -mtriple=i686-pc-win32 | FileCheck %s -check-prefix=WIN_X32 +; RUN: llc < %s -mtriple=i686-pc-mingw32 | FileCheck %s -check-prefix=MINGW_X32 +; RUN: llc < %s -mtriple=i386-pc-linux | FileCheck %s -check-prefix=LINUX +; RUN: llc < %s -O0 -mtriple=i686-pc-win32 | FileCheck %s -check-prefix=WIN_X32 +; RUN: llc < %s -O0 -mtriple=i686-pc-mingw32 | FileCheck %s -check-prefix=MINGW_X32 +; RUN: llc < %s -O0 -mtriple=i386-pc-linux | FileCheck %s -check-prefix=LINUX + +; The SysV ABI used by most Unixes and Mingw on x86 specifies that an sret pointer +; is callee-cleanup. However, in MSVC's cdecl calling convention, sret pointer +; arguments are caller-cleanup like normal arguments. + +define void @sret1(i8* sret) nounwind { +entry: +; WIN_X32: {{ret$}} +; MINGW_X32: ret $4 +; LINUX: ret $4 + ret void +} + +define void @sret2(i32* sret %x, i32 %y) nounwind { +entry: +; WIN_X32: {{ret$}} +; MINGW_X32: ret $4 +; LINUX: ret $4 + store i32 %y, i32* %x + ret void +} + |