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Diffstat (limited to 'test/Transforms/MemCpyOpt/2008-02-24-MultipleUseofSRet.ll')
| -rw-r--r-- | test/Transforms/MemCpyOpt/2008-02-24-MultipleUseofSRet.ll | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/test/Transforms/MemCpyOpt/2008-02-24-MultipleUseofSRet.ll b/test/Transforms/MemCpyOpt/2008-02-24-MultipleUseofSRet.ll new file mode 100644 index 0000000000..30d0a6dbeb --- /dev/null +++ b/test/Transforms/MemCpyOpt/2008-02-24-MultipleUseofSRet.ll @@ -0,0 +1,34 @@ +; RUN: llvm-as < %s | opt -memcpyopt -dse | llvm-dis | grep {call.*initialize} | not grep memtmp +; PR2077 + +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-f80:32:32" +target triple = "i386-pc-linux-gnu" + +define internal fastcc void @initialize({ x86_fp80, x86_fp80 }* noalias sret %agg.result) nounwind { +entry: + %agg.result.03 = getelementptr { x86_fp80, x86_fp80 }* %agg.result, i32 0, i32 0 ; <x86_fp80*> [#uses=1] + store x86_fp80 0xK00000000000000000000, x86_fp80* %agg.result.03 + %agg.result.15 = getelementptr { x86_fp80, x86_fp80 }* %agg.result, i32 0, i32 1 ; <x86_fp80*> [#uses=1] + store x86_fp80 0xK00000000000000000000, x86_fp80* %agg.result.15 + ret void +} + +declare fastcc x86_fp80 @passed_uninitialized({ x86_fp80, x86_fp80 }* %x) nounwind + +define fastcc void @badly_optimized() nounwind { +entry: + %z = alloca { x86_fp80, x86_fp80 } ; <{ x86_fp80, x86_fp80 }*> [#uses=2] + %tmp = alloca { x86_fp80, x86_fp80 } ; <{ x86_fp80, x86_fp80 }*> [#uses=2] + %memtmp = alloca { x86_fp80, x86_fp80 }, align 8 ; <{ x86_fp80, x86_fp80 }*> [#uses=2] + call fastcc void @initialize( { x86_fp80, x86_fp80 }* noalias sret %memtmp ) + %tmp1 = bitcast { x86_fp80, x86_fp80 }* %tmp to i8* ; <i8*> [#uses=1] + %memtmp2 = bitcast { x86_fp80, x86_fp80 }* %memtmp to i8* ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* %tmp1, i8* %memtmp2, i32 24, i32 8 ) + %z3 = bitcast { x86_fp80, x86_fp80 }* %z to i8* ; <i8*> [#uses=1] + %tmp4 = bitcast { x86_fp80, x86_fp80 }* %tmp to i8* ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* %z3, i8* %tmp4, i32 24, i32 8 ) + %tmp5 = call fastcc x86_fp80 @passed_uninitialized( { x86_fp80, x86_fp80 }* %z ) ; <x86_fp80> [#uses=0] + ret void +} + +declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) nounwind |