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| author | Owen Anderson <resistor@mac.com> | 2008-02-04 02:59:58 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2008-02-04 02:59:58 +0000 |
| commit | 6f7a52d300617fd2aca4cd48e328cfe7904be006 (patch) | |
| tree | 2166575dec37341d57d0e0b4789bc3fa372dd439 /test/Transforms | |
| parent | f2a5f012f3ff7ac1bfdaf0ef56aba0111f12822d (diff) | |
| download | external_llvm-6f7a52d300617fd2aca4cd48e328cfe7904be006.zip external_llvm-6f7a52d300617fd2aca4cd48e328cfe7904be006.tar.gz external_llvm-6f7a52d300617fd2aca4cd48e328cfe7904be006.tar.bz2 | |
Allow GVN to hack on memcpy's, making them open to further optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46693 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/GVN/memcpy.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/GVN/memcpy.ll b/test/Transforms/GVN/memcpy.ll new file mode 100644 index 0000000..a91e12d --- /dev/null +++ b/test/Transforms/GVN/memcpy.ll @@ -0,0 +1,22 @@ +; RUN: llvm-as < %s | opt -gvn -dse | llvm-dis | not grep {i8* %agg.result21, i8* %tmp219} + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "i686-apple-darwin9" + +define void @ccosl({ x86_fp80, x86_fp80 }* sret %agg.result, x86_fp80 %z.0, x86_fp80 %z.1) nounwind { +entry: + %tmp2 = alloca { x86_fp80, x86_fp80 } ; <{ x86_fp80, x86_fp80 }*> [#uses=1] + %memtmp = alloca { x86_fp80, x86_fp80 }, align 16 ; <{ x86_fp80, x86_fp80 }*> [#uses=2] + %tmp5 = sub x86_fp80 0xK80000000000000000000, %z.1 ; <x86_fp80> [#uses=1] + call void @ccoshl( { x86_fp80, x86_fp80 }* sret %memtmp, x86_fp80 %tmp5, x86_fp80 %z.0 ) nounwind + %tmp219 = bitcast { x86_fp80, x86_fp80 }* %tmp2 to i8* ; <i8*> [#uses=2] + %memtmp20 = bitcast { x86_fp80, x86_fp80 }* %memtmp to i8* ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* %tmp219, i8* %memtmp20, i32 32, i32 16 ) + %agg.result21 = bitcast { x86_fp80, x86_fp80 }* %agg.result to i8* ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* %agg.result21, i8* %tmp219, i32 32, i32 16 ) + ret void +} + +declare void @ccoshl({ x86_fp80, x86_fp80 }* sret , x86_fp80, x86_fp80) nounwind + +declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) nounwind |