derek.holloway
7502bf64a4
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75 lines
2.7 KiB
LLVM
75 lines
2.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
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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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; DependenceAnalysis used to run into a heap buffer overflow on this testcase.
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; See https://github.com/llvm/llvm-project/issues/31196 for details.
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define void @barney(ptr nocapture %arg, i32 %arg1) {
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; CHECK-LABEL: 'barney'
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; CHECK-NEXT: Src: store i32 7, ptr %getelementptr, align 4 --> Dst: store i32 7, ptr %getelementptr, align 4
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; CHECK-NEXT: da analyze - output [* * * *]!
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;
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bb:
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%icmp = icmp sgt i32 %arg1, 0
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br i1 %icmp, label %bb2, label %bb31
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bb2: ; preds = %bb28, %bb
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%phi = phi i32 [ %add29, %bb28 ], [ 0, %bb ]
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br label %bb3
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bb3: ; preds = %bb25, %bb2
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%phi4 = phi i32 [ %add26, %bb25 ], [ 0, %bb2 ]
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br label %bb5
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bb5: ; preds = %bb22, %bb3
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%phi6 = phi i32 [ -1, %bb3 ], [ %add23, %bb22 ]
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%add7 = add nsw i32 %phi6, %phi4
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br label %bb8
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bb8: ; preds = %bb19, %bb5
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%phi9 = phi i32 [ -1, %bb5 ], [ %add20, %bb19 ]
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%add10 = add nsw i32 %phi9, %phi
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br label %bb11
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bb11: ; preds = %bb11, %bb8
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%phi12 = phi i32 [ %add7, %bb8 ], [ %add14, %bb11 ]
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%icmp13 = icmp slt i32 %phi12, 0
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%add14 = add nsw i32 %phi12, %arg1
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br i1 %icmp13, label %bb11, label %bb15
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bb15: ; preds = %bb15, %bb11
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%phi16 = phi i32 [ %add18, %bb15 ], [ %add10, %bb11 ]
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%icmp17 = icmp slt i32 %phi16, 0
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%add18 = add nsw i32 %phi16, %arg1
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br i1 %icmp17, label %bb15, label %bb19
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bb19: ; preds = %bb15
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%mul = mul nsw i32 %phi16, %arg1
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%add = add nsw i32 %mul, %phi12
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%sext = sext i32 %add to i64
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%getelementptr = getelementptr inbounds i32, ptr %arg, i64 %sext
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store i32 7, ptr %getelementptr, align 4
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%add20 = add nsw i32 %phi9, 1
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%icmp21 = icmp eq i32 %add20, 2
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br i1 %icmp21, label %bb22, label %bb8
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bb22: ; preds = %bb19
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%add23 = add nsw i32 %phi6, 1
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%icmp24 = icmp eq i32 %add23, 2
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br i1 %icmp24, label %bb25, label %bb5
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bb25: ; preds = %bb22
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%add26 = add nuw nsw i32 %phi4, 1
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%icmp27 = icmp eq i32 %add26, %arg1
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br i1 %icmp27, label %bb28, label %bb3
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bb28: ; preds = %bb25
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%add29 = add nuw nsw i32 %phi, 1
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%icmp30 = icmp eq i32 %add29, %arg1
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br i1 %icmp30, label %bb31, label %bb2
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bb31: ; preds = %bb28, %bb
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ret void
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}
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