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| author | Bill Wendling <isanbard@gmail.com> | 2010-07-08 22:38:02 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2010-07-08 22:38:02 +0000 |
| commit | c930cbcada7c62bb474019f4ce21bd6387d1c3f5 (patch) | |
| tree | 23916f51b78f63ebb57dcb71a32a8394029c5ddf /test/CodeGen/X86/leaf-fp-elim.ll | |
| parent | 7cc4f9cd282165940e121745aa5762bb69a98b9b (diff) | |
| download | external_llvm-c930cbcada7c62bb474019f4ce21bd6387d1c3f5.zip external_llvm-c930cbcada7c62bb474019f4ce21bd6387d1c3f5.tar.gz external_llvm-c930cbcada7c62bb474019f4ce21bd6387d1c3f5.tar.bz2 | |
Extension of r107506. Make sure that we don't mark a function as having a call
if the inline ASM doesn't need a stack frame.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107922 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/leaf-fp-elim.ll')
| -rw-r--r-- | test/CodeGen/X86/leaf-fp-elim.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/CodeGen/X86/leaf-fp-elim.ll b/test/CodeGen/X86/leaf-fp-elim.ll new file mode 100644 index 0000000..607dc72 --- /dev/null +++ b/test/CodeGen/X86/leaf-fp-elim.ll @@ -0,0 +1,30 @@ +; RUN: llc < %s -disable-non-leaf-fp-elim -relocation-model=pic -mtriple=x86_64-apple-darwin | FileCheck %s +; <rdar://problem/8170192> +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" +target triple = "x86_64-apple-darwin11.0" + +@msg = internal global i8* null ; <i8**> [#uses=1] +@.str = private constant [2 x i8] c"x\00", align 1 ; <[2 x i8]*> [#uses=1] + +define void @test(i8* %p) nounwind optsize ssp { + +; No stack frame, please. +; CHECK: _test +; CHECK-NOT: pushq %rbp +; CHECK-NOT: movq %rsp, %rbp +; CHECK: InlineAsm Start + +entry: + %0 = icmp eq i8* %p, null ; <i1> [#uses=1] + br i1 %0, label %return, label %bb + +bb: ; preds = %entry + tail call void asm "mov $1, $0", "=*m,{cx},~{dirflag},~{fpsr},~{flags}"(i8** @msg, i8* getelementptr inbounds ([2 x i8]* @.str, i64 0, i64 0)) nounwind + tail call void @llvm.trap() + unreachable + +return: ; preds = %entry + ret void +} + +declare void @llvm.trap() nounwind |