1 ; RUN: opt < %s -scalarrepl -S | FileCheck %s 2 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32" 3 target triple = "thumbv7-apple-darwin10" 4 5 ; CHECK: f 6 ; CHECK-NOT: alloca 7 ; CHECK: %[[A:[a-z0-9]*]] = and i128 undef, -16777216 8 ; CHECK: %[[B:[a-z0-9]*]] = bitcast i128 %[[A]] to <4 x float> 9 ; CHECK: %[[C:[a-z0-9]*]] = extractelement <4 x float> %[[B]], i32 0 10 ; CHECK: ret float %[[C]] 11 12 define float @f() nounwind ssp { 13 entry: 14 %a = alloca <4 x float>, align 16 15 %p = bitcast <4 x float>* %a to i8* 16 call void @llvm.memset.p0i8.i32(i8* %p, i8 0, i32 3, i32 16, i1 false) 17 %vec = load <4 x float>* %a, align 8 18 %val = extractelement <4 x float> %vec, i32 0 19 ret float %val 20 } 21 22 ; CHECK: g 23 ; CHECK-NOT: alloca 24 ; CHECK: and i128 25 26 define void @g() nounwind ssp { 27 entry: 28 %a = alloca { <4 x float> }, align 16 29 %p = bitcast { <4 x float> }* %a to i8* 30 call void @llvm.memset.p0i8.i32(i8* %p, i8 0, i32 16, i32 16, i1 false) 31 %q = bitcast { <4 x float> }* %a to [2 x <2 x float>]* 32 %arrayidx = getelementptr inbounds [2 x <2 x float>]* %q, i32 0, i32 0 33 store <2 x float> undef, <2 x float>* %arrayidx, align 8 34 ret void 35 } 36 37 declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind 38
