1; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -instcombine -S | FileCheck %s 2 3target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" 4 5; CHECK-LABEL: @foo( 6define void @foo(float* noalias %a, float* noalias %b, float* noalias %c, i32 %N) { 7entry: 8 %cmp.4 = icmp sgt i32 %N, 0 9 br i1 %cmp.4, label %for.body.preheader, label %for.end 10 11for.body.preheader: ; preds = %entry 12 br label %for.body 13 14for.body: ; preds = %for.body.preheader, %for.body 15 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] 16 17; Check that we don't lose !nontemporal hint when attempting vectorizing of loads. 18; CHECK: load {{.*}} align 4, !nontemporal !0 19 %arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv 20 %0 = load float, float* %arrayidx, align 4, !nontemporal !0 21 22; Check that we don't introduce !nontemporal hint when the original scalar loads didn't have it. 23; CHECK: load {{.*}} align 4{{$}} 24 %arrayidx2 = getelementptr inbounds float, float* %c, i64 %indvars.iv 25 %1 = load float, float* %arrayidx2, align 4 26 %add = fadd float %0, %1 27 28; Check that we don't lose !nontemporal hint when attempting vectorizing of stores. 29; CHECK: store {{.*}} align 4, !nontemporal !0 30 %arrayidx4 = getelementptr inbounds float, float* %a, i64 %indvars.iv 31 store float %add, float* %arrayidx4, align 4, !nontemporal !0 32 33 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 34 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 35 %exitcond = icmp eq i32 %lftr.wideiv, %N 36 br i1 %exitcond, label %for.end.loopexit, label %for.body 37 38for.end.loopexit: ; preds = %for.body 39 br label %for.end 40 41for.end: ; preds = %for.end.loopexit, %entry 42; CHECK: ret void 43 ret void 44} 45 46!0 = !{i32 1} 47