diff options
| author | Chris Lattner <sabre@nondot.org> | 2004-12-12 22:22:18 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-12-12 22:22:18 +0000 |
| commit | 4e51ccdd38338c93b189b1e21e50e597f698c034 (patch) | |
| tree | 03146e231e3b23e724420aa8d70798f67ec39f96 /lib/Transforms | |
| parent | 188839a2193005e6ee48b1189402d71edcd2a456 (diff) | |
Remove some more set operations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18840 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/ADCE.cpp | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/lib/Transforms/Scalar/ADCE.cpp b/lib/Transforms/Scalar/ADCE.cpp index c7d349932c..fde1308aba 100644 --- a/lib/Transforms/Scalar/ADCE.cpp +++ b/lib/Transforms/Scalar/ADCE.cpp @@ -283,10 +283,8 @@ bool ADCE::doADCE() { BasicBlock *BB = I->getParent(); if (!ReachableBBs.count(BB)) continue; - if (!AliveBlocks.count(BB)) { // Basic block not alive yet... - AliveBlocks.insert(BB); // Block is now ALIVE! + if (AliveBlocks.insert(BB).second) // Basic block not alive yet. markBlockAlive(BB); // Make it so now! - } // PHI nodes are a special case, because the incoming values are actually // defined in the predecessor nodes of this block, meaning that the PHI @@ -294,10 +292,8 @@ bool ADCE::doADCE() { // if (PHINode *PN = dyn_cast<PHINode>(I)) for (pred_iterator PI = pred_begin(BB), PE = pred_end(BB); PI != PE; ++PI) - if (!AliveBlocks.count(*PI)) { - AliveBlocks.insert(BB); // Block is now ALIVE! + if (AliveBlocks.insert(*PI).second) // Block is now ALIVE! markBlockAlive(*PI); - } // Loop over all of the operands of the live instruction, making sure that // they are known to be alive as well... |