From b4ac2858dad1f6e892c8bfe981a6cf32e9a385f8 Mon Sep 17 00:00:00 2001 From: Dale Johannesen Date: Thu, 18 Nov 2010 01:35:23 +0000 Subject: 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 --- test/CodeGen/X86/memset64-on-x86-32.ll | 2 +- test/CodeGen/X86/misaligned-memset.ll | 15 +++++++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) create mode 100644 test/CodeGen/X86/misaligned-memset.ll (limited to 'test/CodeGen/X86') diff --git a/test/CodeGen/X86/memset64-on-x86-32.ll b/test/CodeGen/X86/memset64-on-x86-32.ll index c0cd271d98..3f069b4a1a 100644 --- a/test/CodeGen/X86/memset64-on-x86-32.ll +++ b/test/CodeGen/X86/memset64-on-x86-32.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -mtriple=i386-apple-darwin -mcpu=nehalem | grep movaps | count 5 +; RUN: llc < %s -mtriple=i386-apple-darwin -mcpu=nehalem | grep movups | count 5 ; RUN: llc < %s -mtriple=i386-apple-darwin -mcpu=core2 | grep movl | count 20 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=core2 | grep movq | count 10 diff --git a/test/CodeGen/X86/misaligned-memset.ll b/test/CodeGen/X86/misaligned-memset.ll new file mode 100644 index 0000000000..21f8bf2bf2 --- /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 -- cgit v1.2.3