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| author | Jun Ma <JunMa@linux.alibaba.com> | 2021-09-27 20:39:05 +0800 |
|---|---|---|
| committer | Jun Ma <JunMa@linux.alibaba.com> | 2021-09-27 20:39:05 +0800 |
| commit | 3a998c06a8e93989319238e12b56a731198cc1c2 (patch) | |
| tree | b73fc514c107f0611472e5f2f541add738dfc9d4 /llvm/lib/Transforms/Utils/Local.cpp | |
| parent | e2eb651cfc7f5af355013e469640f38dca62b21c (diff) | |
| download | llvm-3a998c06a8e93989319238e12b56a731198cc1c2.zip llvm-3a998c06a8e93989319238e12b56a731198cc1c2.tar.gz llvm-3a998c06a8e93989319238e12b56a731198cc1c2.tar.bz2 | |
Revert "Recommit "Revert "[CVP] processSwitch: Remove default case when switch cover all possible values."""
This reverts commit 8ba2adcf9e54b34ba8efa73ac0d81a1192e4f614.
Diffstat (limited to 'llvm/lib/Transforms/Utils/Local.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/Local.cpp | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp index 5aeafb7..0274eef 100644 --- a/llvm/lib/Transforms/Utils/Local.cpp +++ b/llvm/lib/Transforms/Utils/Local.cpp @@ -2182,26 +2182,6 @@ void llvm::changeToCall(InvokeInst *II, DomTreeUpdater *DTU) { DTU->applyUpdates({{DominatorTree::Delete, BB, UnwindDestBB}}); } -void llvm::createUnreachableSwitchDefault(SwitchInst *Switch, - DomTreeUpdater *DTU) { - LLVM_DEBUG(dbgs() << "SimplifyCFG: switch default is dead.\n"); - auto *BB = Switch->getParent(); - auto *OrigDefaultBlock = Switch->getDefaultDest(); - OrigDefaultBlock->removePredecessor(BB); - BasicBlock *NewDefaultBlock = BasicBlock::Create( - BB->getContext(), BB->getName() + ".unreachabledefault", BB->getParent(), - OrigDefaultBlock); - new UnreachableInst(Switch->getContext(), NewDefaultBlock); - Switch->setDefaultDest(&*NewDefaultBlock); - if (DTU) { - SmallVector<DominatorTree::UpdateType, 2> Updates; - Updates.push_back({DominatorTree::Insert, BB, &*NewDefaultBlock}); - if (!is_contained(successors(BB), OrigDefaultBlock)) - Updates.push_back({DominatorTree::Delete, BB, &*OrigDefaultBlock}); - DTU->applyUpdates(Updates); - } -} - BasicBlock *llvm::changeToInvokeAndSplitBasicBlock(CallInst *CI, BasicBlock *UnwindEdge, DomTreeUpdater *DTU) { |