1 ; RUN: opt < %s -basicaa -memcpyopt -dse -S | grep {call.*initialize} | not grep memtmp 2 ; PR2077 3 4 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" 5 target triple = "i386-pc-linux-gnu" 6 7 %0 = type { x86_fp80, x86_fp80 } 8 9 define internal fastcc void @initialize(%0* noalias sret %agg.result) nounwind { 10 entry: 11 %agg.result.03 = getelementptr %0* %agg.result, i32 0, i32 0 12 store x86_fp80 0xK00000000000000000000, x86_fp80* %agg.result.03 13 %agg.result.15 = getelementptr %0* %agg.result, i32 0, i32 1 14 store x86_fp80 0xK00000000000000000000, x86_fp80* %agg.result.15 15 ret void 16 } 17 18 declare fastcc x86_fp80 @passed_uninitialized(%0*) nounwind 19 20 define fastcc void @badly_optimized() nounwind { 21 entry: 22 %z = alloca %0 23 %tmp = alloca %0 24 %memtmp = alloca %0, align 8 25 call fastcc void @initialize(%0* noalias sret %memtmp) 26 %tmp1 = bitcast %0* %tmp to i8* 27 %memtmp2 = bitcast %0* %memtmp to i8* 28 call void @llvm.memcpy.p0i8.p0i8.i32(i8* %tmp1, i8* %memtmp2, i32 24, i32 8, i1 false) 29 %z3 = bitcast %0* %z to i8* 30 %tmp4 = bitcast %0* %tmp to i8* 31 call void @llvm.memcpy.p0i8.p0i8.i32(i8* %z3, i8* %tmp4, i32 24, i32 8, i1 false) 32 %tmp5 = call fastcc x86_fp80 @passed_uninitialized(%0* %z) 33 ret void 34 } 35 36 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind 37
