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| author | Duncan Sands <baldrick@free.fr> | 2010-11-17 10:23:23 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2010-11-17 10:23:23 +0000 |
| commit | 23a19572b2839ee3a6a3520d60d62a465cec7d53 (patch) | |
| tree | c2c21d4d19c1585eb138cca7ce5279c97b01a7ee /lib/Analysis/Lint.cpp | |
| parent | baa45f7298c266f0f89b17e50e9d98709dde84d7 (diff) | |
| download | external_llvm-23a19572b2839ee3a6a3520d60d62a465cec7d53.zip external_llvm-23a19572b2839ee3a6a3520d60d62a465cec7d53.tar.gz external_llvm-23a19572b2839ee3a6a3520d60d62a465cec7d53.tar.bz2 | |
Now that hasConstantValue has been made simpler, it may return the
phi node itself if it occurs in an unreachable basic block. Protect
against this. Hopefully this will fix some more buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119493 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/Lint.cpp')
| -rw-r--r-- | lib/Analysis/Lint.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Analysis/Lint.cpp b/lib/Analysis/Lint.cpp index e5e7cd3..0cdb4b1 100644 --- a/lib/Analysis/Lint.cpp +++ b/lib/Analysis/Lint.cpp @@ -583,7 +583,8 @@ Value *Lint::findValueImpl(Value *V, bool OffsetOk, } } else if (PHINode *PN = dyn_cast<PHINode>(V)) { if (Value *W = PN->hasConstantValue()) - return findValueImpl(W, OffsetOk, Visited); + if (W != V) + return findValueImpl(W, OffsetOk, Visited); } else if (CastInst *CI = dyn_cast<CastInst>(V)) { if (CI->isNoopCast(TD ? TD->getIntPtrType(V->getContext()) : Type::getInt64Ty(V->getContext()))) |