diff options
Diffstat (limited to 'lib/Transforms/Utils')
| -rw-r--r-- | lib/Transforms/Utils/LowerInvoke.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/LowerInvoke.cpp b/lib/Transforms/Utils/LowerInvoke.cpp index 54724b5..0f664e1 100644 --- a/lib/Transforms/Utils/LowerInvoke.cpp +++ b/lib/Transforms/Utils/LowerInvoke.cpp @@ -334,6 +334,12 @@ splitLiveRangesLiveAcrossInvokes(std::vector<InvokeInst*> &Invokes) { cast<Instruction>(Inst->use_back())->getParent() == BB && !isa<PHINode>(Inst->use_back())) continue; + // If this is an alloca in the entry block, it's not a real register + // value. + if (AllocaInst *AI = dyn_cast<AllocaInst>(Inst)) + if (isa<ConstantInt>(AI->getArraySize()) && BB == F->begin()) + continue; + // Avoid iterator invalidation by copying users to a temporary vector. std::vector<Instruction*> Users; for (Value::use_iterator UI = Inst->use_begin(), E = Inst->use_end(); |