| ; RUN: opt < %s -basicaa -memcpyopt -dse -S | 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 |
