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| author | Chen Li <meloli87@gmail.com> | 2015-08-07 19:30:12 +0000 |
|---|---|---|
| committer | Chen Li <meloli87@gmail.com> | 2015-08-07 19:30:12 +0000 |
| commit | eafbc9dc474e99c95f0625f44aadc1bb64790795 (patch) | |
| tree | b4684c137e63933382d67da4a64d5e8f4ca0eb7b /llvm/lib/Transforms/Utils/Local.cpp | |
| parent | c1c1f534ecf0660da82ecd967970dabbfdb4e06a (diff) | |
| download | llvm-eafbc9dc474e99c95f0625f44aadc1bb64790795.zip llvm-eafbc9dc474e99c95f0625f44aadc1bb64790795.tar.gz llvm-eafbc9dc474e99c95f0625f44aadc1bb64790795.tar.bz2 | |
[ConstantFoldTerminator] Preserve make.implicit metadata when converting SwitchInst to BranchInst
Summary: llvm::ConstantFoldTerminator function can convert SwitchInst with single case (and default) to a conditional BranchInst. This patch adds support to preserve make.implicit metadata on this conversion.
Reviewers: sanjoy, weimingz, chenli
Subscribers: mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D11841
llvm-svn: 244348
Diffstat (limited to 'llvm/lib/Transforms/Utils/Local.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/Local.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp index 3483032..310aab4 100644 --- a/llvm/lib/Transforms/Utils/Local.cpp +++ b/llvm/lib/Transforms/Utils/Local.cpp @@ -229,6 +229,11 @@ bool llvm::ConstantFoldTerminator(BasicBlock *BB, bool DeleteDeadConditions, SIDef->getValue().getZExtValue())); } + // Update make.implicit metadata to the newly-created conditional branch. + MDNode *MakeImplicitMD = SI->getMetadata(LLVMContext::MD_make_implicit); + if (MakeImplicitMD) + NewBr->setMetadata(LLVMContext::MD_make_implicit, MakeImplicitMD); + // Delete the old switch. SI->eraseFromParent(); return true; |