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| author | Chris Lattner <sabre@nondot.org> | 2005-09-27 21:33:12 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-09-27 21:33:12 +0000 |
| commit | e285f5ed8f15de7be2c2000d8ee464d36c788b1d (patch) | |
| tree | 441d4262e4f2740be11280d296fad8a64ca2e745 /llvm/lib/Transforms/Scalar/LowerInvoke.cpp | |
| parent | 87eb24930006dbe32ef9159d58834a7a00121543 (diff) | |
| download | bcm5719-llvm-e285f5ed8f15de7be2c2000d8ee464d36c788b1d.tar.gz bcm5719-llvm-e285f5ed8f15de7be2c2000d8ee464d36c788b1d.zip | |
Avoid spilling stack slots... to stack slots.
llvm-svn: 23478
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LowerInvoke.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LowerInvoke.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/LowerInvoke.cpp b/llvm/lib/Transforms/Scalar/LowerInvoke.cpp index 54724b5f1ac..0f664e151f9 100644 --- a/llvm/lib/Transforms/Scalar/LowerInvoke.cpp +++ b/llvm/lib/Transforms/Scalar/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(); |
