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| author | Chris Lattner <sabre@nondot.org> | 2009-09-21 22:39:35 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-09-21 22:39:35 +0000 |
| commit | 850c9178dc5bc8a49fc41c7cf606bfdd7cd1de3a (patch) | |
| tree | d86cf57731ec7c70dd453d44ae8c65590b91414a /test/Transforms/Mem2Reg | |
| parent | 75c7c995b7ed5a5b7527a80d2bbc2b60720b1312 (diff) | |
| download | external_llvm-850c9178dc5bc8a49fc41c7cf606bfdd7cd1de3a.zip external_llvm-850c9178dc5bc8a49fc41c7cf606bfdd7cd1de3a.tar.gz external_llvm-850c9178dc5bc8a49fc41c7cf606bfdd7cd1de3a.tar.bz2 | |
Fix PR5023: The instruction form of DominatorTree::dominates did not
take into consideration that the result of an invoke is only valid in
the normal dest, not the unwind dest. This caused 'PHINode::hasConstantValue'
to return true in an invalid situation, causing mem2reg to delete a phi that
was actually needed. This caused a crash building 483.xalancbmk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82491 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/Mem2Reg')
| -rw-r--r-- | test/Transforms/Mem2Reg/crash.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/Mem2Reg/crash.ll b/test/Transforms/Mem2Reg/crash.ll new file mode 100644 index 0000000..ce795aa --- /dev/null +++ b/test/Transforms/Mem2Reg/crash.ll @@ -0,0 +1,24 @@ +; RUN: opt < %s -mem2reg -S +; PR5023 + +declare i32 @bar() + +define i32 @foo() { +entry: + %whichFlag = alloca i32 + %A = invoke i32 @bar() + to label %invcont2 unwind label %lpad86 + +invcont2: + store i32 %A, i32* %whichFlag + br label %bb15 + +bb15: + %B = load i32* %whichFlag + ret i32 %B + +lpad86: + br label %bb15 + +} + |