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| author | Nick Lewycky <nicholas@mxc.ca> | 2009-08-19 06:24:33 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2009-08-19 06:24:33 +0000 |
| commit | 3417e8f185e9d866df6a604976237e2f0a5e5deb (patch) | |
| tree | cc01c44ca0a1990250eed863d471211cbc8498bd /lib/Transforms/Utils/SSI.cpp | |
| parent | 663c2d2580e6e9b2435785c7e5a2de18758860a3 (diff) | |
Be more careful when modifying PHI nodes. Patch by Andre Tavares.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79407 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/SSI.cpp')
| -rw-r--r-- | lib/Transforms/Utils/SSI.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Utils/SSI.cpp b/lib/Transforms/Utils/SSI.cpp index 7bb9495f3c..b4e683417c 100644 --- a/lib/Transforms/Utils/SSI.cpp +++ b/lib/Transforms/Utils/SSI.cpp @@ -316,7 +316,8 @@ void SSI::fixPhis() { for (unsigned i = 0, e = PN->getNumIncomingValues(); i < e; ++i) { PHINode *PN_father; if ((PN_father = dyn_cast<PHINode>(PN->getIncomingValue(i))) && - PN->getParent() == PN_father->getParent()) { + PN->getParent() == PN_father->getParent() && + !DT_->dominates(PN->getParent(), PN->getIncomingBlock(i))) { BasicBlock *BB = PN->getIncomingBlock(i); int pos = PN_father->getBasicBlockIndex(BB); PN->setIncomingValue(i, PN_father->getIncomingValue(pos)); |