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Diffstat (limited to 'test/Transforms/LoopVectorize/tbaa-nodep.ll')
| -rw-r--r-- | test/Transforms/LoopVectorize/tbaa-nodep.ll | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/test/Transforms/LoopVectorize/tbaa-nodep.ll b/test/Transforms/LoopVectorize/tbaa-nodep.ll new file mode 100644 index 0000000..5cd104c --- /dev/null +++ b/test/Transforms/LoopVectorize/tbaa-nodep.ll @@ -0,0 +1,102 @@ +; 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* %b, i64 %indvars.iv + %0 = load float* %arrayidx, align 4, !tbaa !0 + %conv = fptosi float %0 to i32 + %arrayidx2 = getelementptr inbounds 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>* %{{.*}}, 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>* %{{.*}}, 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* %b, i64 %indvars.iv + %0 = load float* %arrayidx, align 4, !tbaa !0 + %arrayidx2 = getelementptr inbounds i32* %a, i64 %indvars.iv + %1 = load i32* %arrayidx2, align 4, !tbaa !4 + %conv = sitofp i32 %1 to float + %mul = fmul float %0, %conv + %arrayidx4 = getelementptr inbounds 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>* %{{.*}}, 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>* %{{.*}}, 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 = metadata !{metadata !1, metadata !1, i64 0} +!1 = metadata !{metadata !"float", metadata !2, i64 0} +!2 = metadata !{metadata !"omnipotent char", metadata !3, i64 0} +!3 = metadata !{metadata !"Simple C/C++ TBAA"} +!4 = metadata !{metadata !5, metadata !5, i64 0} +!5 = metadata !{metadata !"int", metadata !2, i64 0} + |