forked from OSchip/llvm-project
51 lines
1.7 KiB
LLVM
51 lines
1.7 KiB
LLVM
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; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \
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; RUN: | FileCheck %s
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;; Test to make sure the dump shows the src and dst
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;; instructions (including call instructions).
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;;
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;; void bar(float * restrict A);
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;; void foo(float * restrict A, int n) {
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;; for (int i = 0; i < n; i++) {
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;; A[i] = i;
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;; bar(A);
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;; }
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;; }
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; CHECK-LABEL: foo
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; CHECK: Src: store float %conv, float* %arrayidx, align 4 --> Dst: store float %conv, float* %arrayidx, align 4
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; CHECK-NEXT: da analyze - none!
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; CHECK-NEXT: Src: store float %conv, float* %arrayidx, align 4 --> Dst: call void @bar(float* %A)
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; CHECK-NEXT: da analyze - confused!
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; CHECK-NEXT: Src: call void @bar(float* %A) --> Dst: call void @bar(float* %A)
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; CHECK-NEXT: da analyze - confused!
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define void @foo(float* noalias %A, i32 signext %n) {
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entry:
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%cmp1 = icmp slt i32 0, %n
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br i1 %cmp1, label %for.body.lr.ph, label %for.end
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for.body.lr.ph: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.lr.ph, %for.body
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%i.02 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
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%conv = sitofp i32 %i.02 to float
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%idxprom = zext i32 %i.02 to i64
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%arrayidx = getelementptr inbounds float, float* %A, i64 %idxprom
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store float %conv, float* %arrayidx, align 4
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call void @bar(float* %A) #3
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%inc = add nuw nsw i32 %i.02, 1
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%cmp = icmp slt i32 %inc, %n
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br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge
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for.cond.for.end_crit_edge: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.cond.for.end_crit_edge, %entry
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ret void
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}
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declare void @bar(float*)
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