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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/X86/2004-02-12-Memcpy.ll | |
| parent | 66b17ba0d263442b8b4e82aaa08acc0df85e1787 (diff) | |
| download | external_llvm-1887c1c2f99903d13406e723f2dcbab4511e3f49.zip external_llvm-1887c1c2f99903d13406e723f2dcbab4511e3f49.tar.gz external_llvm-1887c1c2f99903d13406e723f2dcbab4511e3f49.tar.bz2 | |
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/X86/2004-02-12-Memcpy.ll')
| -rw-r--r-- | test/CodeGen/X86/2004-02-12-Memcpy.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/test/CodeGen/X86/2004-02-12-Memcpy.ll b/test/CodeGen/X86/2004-02-12-Memcpy.ll index 59364c1..56bb21c 100644 --- a/test/CodeGen/X86/2004-02-12-Memcpy.ll +++ b/test/CodeGen/X86/2004-02-12-Memcpy.ll @@ -1,11 +1,11 @@ -; RUN: llvm-as < %s | llc -march=x86 -mtriple=i686-pc-linux-gnu | grep movs | count 3 +; RUN: llvm-as < %s | llc -march=x86 -mtriple=i686-pc-linux-gnu | grep movs | count 1 @A = global [32 x i32] zeroinitializer @B = global [32 x i32] zeroinitializer declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) -define void @main() { +define void @main() nounwind { ; dword copy call void @llvm.memcpy.i32(i8* bitcast ([32 x i32]* @A to i8*), i8* bitcast ([32 x i32]* @B to i8*), |