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| author | Dan Gohman <gohman@apple.com> | 2008-05-29 19:42:22 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-05-29 19:42:22 +0000 |
| commit | 21323f3a829df0e6d9b4566a551619a01e269ba6 (patch) | |
| tree | b1236f491c1de258e4588884afd05e23282dee2a /test/CodeGen/X86/memmove-4.ll | |
| parent | 0b85642898bd81209e56e8098c065e2975d455a0 (diff) | |
| download | external_llvm-21323f3a829df0e6d9b4566a551619a01e269ba6.zip external_llvm-21323f3a829df0e6d9b4566a551619a01e269ba6.tar.gz external_llvm-21323f3a829df0e6d9b4566a551619a01e269ba6.tar.bz2 | |
Expand small memmovs using inline code. Set the X86 threshold for expanding
memmove to a more plausible value, now that it's actually being used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51696 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/memmove-4.ll')
| -rw-r--r-- | test/CodeGen/X86/memmove-4.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/CodeGen/X86/memmove-4.ll b/test/CodeGen/X86/memmove-4.ll new file mode 100644 index 0000000..f23c7d5 --- /dev/null +++ b/test/CodeGen/X86/memmove-4.ll @@ -0,0 +1,12 @@ +; RUN: llvm-as < %s | llc | not grep call + +target triple = "i686-pc-linux-gnu" + +define void @a(i8* %a, i8* %b) nounwind { + %tmp2 = bitcast i8* %a to i8* + %tmp3 = bitcast i8* %b to i8* + tail call void @llvm.memmove.i32( i8* %tmp2, i8* %tmp3, i32 12, i32 4 ) + ret void +} + +declare void @llvm.memmove.i32(i8*, i8*, i32, i32) |