llvm/memset64-on-x86-32.ll at 828f704c10583827df322127192684a02dfce9df - llvm - Gitea: Git with a cup of tea

RPCSX/llvm

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Evan Cheng 1887c1c2f9 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

2008-08-21 21:00:15 +00:00

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LLVM

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 ; 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
 define void @bork() nounwind {
 entry:
         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