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| author | Tobias Grosser <grosser@fim.uni-passau.de> | 2010-07-16 05:59:45 +0000 |
|---|---|---|
| committer | Tobias Grosser <grosser@fim.uni-passau.de> | 2010-07-16 05:59:45 +0000 |
| commit | 74c740052a143027bbc2d14594d6188e2e597fa1 (patch) | |
| tree | f6aeb9bab22b70a139c6998196090592387a474e /test/Transforms | |
| parent | 9a7b37b8a35e60494cde8b2bb6b6cab587836c7a (diff) | |
| download | llvm-74c740052a143027bbc2d14594d6188e2e597fa1.tar.gz llvm-74c740052a143027bbc2d14594d6188e2e597fa1.tar.bz2 llvm-74c740052a143027bbc2d14594d6188e2e597fa1.tar.xz | |
LoopSimplify does not update domfrontier correctly.
This fixes PR7649.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108513 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/LoopSimplify/2010-07-15-IncorrectDomFrontierUpdate.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/LoopSimplify/2010-07-15-IncorrectDomFrontierUpdate.ll b/test/Transforms/LoopSimplify/2010-07-15-IncorrectDomFrontierUpdate.ll new file mode 100644 index 0000000000..2a1ee7d1a7 --- /dev/null +++ b/test/Transforms/LoopSimplify/2010-07-15-IncorrectDomFrontierUpdate.ll @@ -0,0 +1,20 @@ +; RUN: opt < %s -domfrontier -loopsimplify -domfrontier -verify-dom-info -analyze + + +define void @a() nounwind { +entry: + br i1 undef, label %bb37, label %bb1.i + +bb1.i: ; preds = %bb1.i, %bb + %indvar = phi i64 [ %indvar.next, %bb1.i ], [ 0, %entry ] ; <i64> [#uses=1] + %indvar.next = add i64 %indvar, 1 ; <i64> [#uses=2] + %exitcond = icmp eq i64 %indvar.next, 576 ; <i1> [#uses=1] + br i1 %exitcond, label %bb37, label %bb1.i + +bb37: ; preds = %bb1.i, %bb + br label %return + + +return: ; preds = %bb39 + ret void +} |