| ; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -instcombine -S | FileCheck %s |
| |
| target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" |
| |
| ; CHECK-LABEL: @foo( |
| define void @foo(float* noalias %a, float* noalias %b, float* noalias %c, i32 %N) { |
| entry: |
| %cmp.4 = icmp sgt i32 %N, 0 |
| br i1 %cmp.4, label %for.body.preheader, label %for.end |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] |
| |
| ; Check that we don't lose !nontemporal hint when vectorizing loads. |
| ; CHECK: %wide.load{{[0-9]*}} = load <4 x float>, <4 x float>* %{{[0-9]+}}, align 4, !nontemporal !0 |
| %arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv |
| %0 = load float, float* %arrayidx, align 4, !nontemporal !0 |
| |
| ; Check that we don't introduce !nontemporal hint when the original scalar loads didn't have it. |
| ; CHECK: %wide.load{{[0-9]+}} = load <4 x float>, <4 x float>* %{{[0-9]+}}, align 4{{$}} |
| %arrayidx2 = getelementptr inbounds float, float* %c, i64 %indvars.iv |
| %1 = load float, float* %arrayidx2, align 4 |
| %add = fadd float %0, %1 |
| |
| ; Check that we don't lose !nontemporal hint when vectorizing stores. |
| ; CHECK: store <4 x float> %{{[0-9]+}}, <4 x float>* %{{[0-9]+}}, align 4, !nontemporal !0 |
| %arrayidx4 = getelementptr inbounds float, float* %a, i64 %indvars.iv |
| store float %add, float* %arrayidx4, align 4, !nontemporal !0 |
| |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, %N |
| br i1 %exitcond, label %for.end.loopexit, label %for.body |
| |
| for.end.loopexit: ; preds = %for.body |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ; CHECK: ret void |
| ret void |
| } |
| |
| !0 = !{i32 1} |
