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| author | Dale Johannesen <dalej@apple.com> | 2010-11-18 01:35:23 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2010-11-18 01:35:23 +0000 |
| commit | b4ac2858dad1f6e892c8bfe981a6cf32e9a385f8 (patch) | |
| tree | d48ffe72e2942b3bd88ca477a390ccfac48305f6 /test/CodeGen/X86/misaligned-memset.ll | |
| parent | 1b4886dd00578038c0ca70b3bab97382b89def26 (diff) | |
| download | external_llvm-b4ac2858dad1f6e892c8bfe981a6cf32e9a385f8.zip external_llvm-b4ac2858dad1f6e892c8bfe981a6cf32e9a385f8.tar.gz external_llvm-b4ac2858dad1f6e892c8bfe981a6cf32e9a385f8.tar.bz2 | |
Do not throw away alignment when generating the DAG for
memset; we may need it to decide between MOVAPS and MOVUPS
later. Adjust a test that was looking for wrong code.
PR 3866 / 8675131.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119605 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/misaligned-memset.ll')
| -rw-r--r-- | test/CodeGen/X86/misaligned-memset.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/X86/misaligned-memset.ll b/test/CodeGen/X86/misaligned-memset.ll new file mode 100644 index 0000000..21f8bf2 --- /dev/null +++ b/test/CodeGen/X86/misaligned-memset.ll @@ -0,0 +1,15 @@ +; RUN: llc -mtriple=x86_64-apple-darwin -mcpu=nehalem < %s | FileCheck %s + +@a = common global [3 x i64] zeroinitializer, align 16 + +define i32 @main() nounwind ssp { +; CHECK: movups +entry: + %retval = alloca i32, align 4 + store i32 0, i32* %retval + call void @llvm.memset.p0i8.i64(i8* bitcast (i64* getelementptr inbounds ([3 x i64]* @a, i32 0, i64 1) to i8*), i8 0, i64 16, i32 1, i1 false) + %0 = load i32* %retval + ret i32 %0 +} + +declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind |