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use splice instead of remove/insert to avoid some symtab operations

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llvm-svn: 22611
This commit is contained in:
Chris Lattner 2005-08-03 00:23:42 +00:00
parent adbd086f50
commit 0f4e0d19cc
1 changed files with 2 additions and 2 deletions
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4
lib/Transforms/Utils/SimplifyCFG.cpp
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@ -153,8 +153,8 @@ static bool TryToSimplifyUncondBranchFromEmptyBlock(BasicBlock *BB,
// *ONLY* had BB as a predecessor, and the PHI node is still valid // *ONLY* had BB as a predecessor, and the PHI node is still valid
// now. Simply move it into Succ, because we know that BB // now. Simply move it into Succ, because we know that BB
// strictly dominated Succ. // strictly dominated Succ.
BB->getInstList().remove(BB->begin()); Succ->getInstList().splice(Succ->begin(),
Succ->getInstList().push_front(PN); BB->getInstList(), BB->begin());
// We need to add new entries for the PHI node to account for // We need to add new entries for the PHI node to account for
// predecessors of Succ that the PHI node does not take into // predecessors of Succ that the PHI node does not take into