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comment cleanup, use moveBefore instead of removeFromParent+insertBefore.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129319 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2011-04-11 23:24:57 +00:00
parent bd2907356d
commit c8fbc34869
1 changed files with 5 additions and 9 deletions
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14
lib/Transforms/Utils/SimplifyCFG.cpp
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@ -1401,10 +1401,9 @@ static bool SimplifyCondBranchToTwoReturns(BranchInst *BI) {
return true;
}
/// FoldBranchToCommonDest - If this basic block is ONLY a setcc and a branch,
/// and if a predecessor branches to us and one of our successors, fold the
/// setcc into the predecessor and use logical operations to pick the right
/// destination.
/// FoldBranchToCommonDest - If this basic block is simple enough, and if a
/// predecessor branches to us and one of our successors, fold the block into
/// the predecessor and use logical operations to pick the right destination.
bool llvm::FoldBranchToCommonDest(BranchInst *BI) {
BasicBlock *BB = BI->getParent();
Instruction *Cond = dyn_cast<Instruction>(BI->getCondition());
@ -1588,11 +1587,8 @@ bool llvm::FoldBranchToCommonDest(BranchInst *BI) {
// Move dbg value intrinsics in PredBlock.
for (SmallVector<DbgInfoIntrinsic *, 8>::iterator DBI = DbgValues.begin(),
DBE = DbgValues.end(); DBI != DBE; ++DBI) {
DbgInfoIntrinsic *DB = *DBI;
DB->removeFromParent();
DB->insertBefore(PBI);
}
DBE = DbgValues.end(); DBI != DBE; ++DBI)
(*DBI)->moveBefore(PBI);
return true;
}
return false;