; RUN: opt < %s -tbaa -basicaa -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -simplifycfg -S | FileCheck %s ; RUN: opt < %s -basicaa -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -simplifycfg -S | FileCheck %s --check-prefix=CHECK-NOTBAA target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" ; Function Attrs: nounwind uwtable define i32 @test1(i32* nocapture %a, float* nocapture readonly %b) #0 { entry: br label %for.body for.body: ; preds = %for.body, %entry %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] %arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv %0 = load float, float* %arrayidx, align 4, !tbaa !0 %conv = fptosi float %0 to i32 %arrayidx2 = getelementptr inbounds i32, i32* %a, i64 %indvars.iv store i32 %conv, i32* %arrayidx2, align 4, !tbaa !4 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 %exitcond = icmp eq i64 %indvars.iv.next, 1600 br i1 %exitcond, label %for.end, label %for.body for.end: ; preds = %for.body ret i32 0 ; TBAA partitions the accesses in this loop, so it can be vectorized without ; runtime checks. ; CHECK-LABEL: @test1 ; CHECK: entry: ; CHECK-NEXT: br label %vector.body ; CHECK: vector.body: ; CHECK: load <4 x float>, <4 x float>* %{{.*}}, align 4, !tbaa ; CHECK: store <4 x i32> %{{.*}}, <4 x i32>* %{{.*}}, align 4, !tbaa ; CHECK: ret i32 0 ; CHECK-NOTBAA-LABEL: @test1 ; CHECK-NOTBAA: icmp uge i32* ; CHECK-NOTBAA: load <4 x float>, <4 x float>* %{{.*}}, align 4, !tbaa ; CHECK-NOTBAA: store <4 x i32> %{{.*}}, <4 x i32>* %{{.*}}, align 4, !tbaa ; CHECK-NOTBAA: ret i32 0 } ; Function Attrs: nounwind uwtable define i32 @test2(i32* nocapture readonly %a, float* nocapture readonly %b, float* nocapture %c) #0 { entry: br label %for.body for.body: ; preds = %for.body, %entry %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] %arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv %0 = load float, float* %arrayidx, align 4, !tbaa !0 %arrayidx2 = getelementptr inbounds i32, i32* %a, i64 %indvars.iv %1 = load i32, i32* %arrayidx2, align 4, !tbaa !4 %conv = sitofp i32 %1 to float %mul = fmul float %0, %conv %arrayidx4 = getelementptr inbounds float, float* %c, i64 %indvars.iv store float %mul, float* %arrayidx4, align 4, !tbaa !0 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 %exitcond = icmp eq i64 %indvars.iv.next, 1600 br i1 %exitcond, label %for.end, label %for.body for.end: ; preds = %for.body ret i32 0 ; This test is like the first, except here there is still one runtime check ; required. Without TBAA, however, two checks are required. ; CHECK-LABEL: @test2 ; CHECK: icmp uge float* ; CHECK: icmp uge float* ; CHECK-NOT: icmp uge i32* ; CHECK: load <4 x float>, <4 x float>* %{{.*}}, align 4, !tbaa ; CHECK: store <4 x float> %{{.*}}, <4 x float>* %{{.*}}, align 4, !tbaa ; CHECK: ret i32 0 ; CHECK-NOTBAA-LABEL: @test2 ; CHECK-NOTBAA: icmp uge float* ; CHECK-NOTBAA: icmp uge float* ; CHECK-NOTBAA-DAG: icmp uge float* ; CHECK-NOTBAA-DAG: icmp uge i32* ; CHECK-NOTBAA: load <4 x float>, <4 x float>* %{{.*}}, align 4, !tbaa ; CHECK-NOTBAA: store <4 x float> %{{.*}}, <4 x float>* %{{.*}}, align 4, !tbaa ; CHECK-NOTBAA: ret i32 0 } attributes #0 = { nounwind uwtable } !0 = !{!1, !1, i64 0} !1 = !{!"float", !2, i64 0} !2 = !{!"omnipotent char", !3, i64 0} !3 = !{!"Simple C/C++ TBAA"} !4 = !{!5, !5, i64 0} !5 = !{!"int", !2, i64 0}