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| author | Evan Cheng <evan.cheng@apple.com> | 2008-08-21 21:00:15 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-08-21 21:00:15 +0000 |
| commit | 1887c1c2f99903d13406e723f2dcbab4511e3f49 (patch) | |
| tree | a41725c80694a8834cd1eb9557d175b2880cb389 /test/CodeGen/X86/memset64-on-x86-32.ll | |
| parent | 66b17ba0d263442b8b4e82aaa08acc0df85e1787 (diff) | |
| download | llvm-1887c1c2f99903d13406e723f2dcbab4511e3f49.tar.gz llvm-1887c1c2f99903d13406e723f2dcbab4511e3f49.tar.bz2 llvm-1887c1c2f99903d13406e723f2dcbab4511e3f49.tar.xz | |
Fix a number of byval / memcpy / memset related codegen issues.
1. x86-64 byval alignment should be max of 8 and alignment of type. Previously the code was not doing what the commit message was saying.
2. Do not use byte repeat move and store operations. These are slow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55139 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/memset64-on-x86-32.ll')
| -rw-r--r-- | test/CodeGen/X86/memset64-on-x86-32.ll | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/test/CodeGen/X86/memset64-on-x86-32.ll b/test/CodeGen/X86/memset64-on-x86-32.ll index 7045c0faf0..d76d4d4792 100644 --- a/test/CodeGen/X86/memset64-on-x86-32.ll +++ b/test/CodeGen/X86/memset64-on-x86-32.ll @@ -1,12 +1,10 @@ -; RUN: llvm-as < %s | llc -march=x86 | grep stosb +; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin | grep stosl +; RUN: llvm-as < %s | llc -mtriple=x86_64-apple-darwin | grep movq | count 10 -target triple = "i386-apple-darwin9" - %struct.S = type { [80 x i8] } - -define %struct.S* @bork() { +define void @bork() nounwind { entry: - call void @llvm.memset.i64( i8* null, i8 0, i64 80, i32 1 ) - ret %struct.S* null + call void @llvm.memset.i64( i8* null, i8 0, i64 80, i32 4 ) + ret void } declare void @llvm.memset.i64(i8*, i8, i64, i32) nounwind |