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Tidy up BasicBlock::getFirstNonPHI, and change a bunch of places to

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use it instead of duplicating its functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51499 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2008-05-23 21:05:58 +00:00
parent ee335e35ac
commit 02dea8b39f
16 changed files with 38 additions and 62 deletions
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3
lib/Transforms/Scalar/JumpThreading.cpp
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@@ -116,9 +116,8 @@ BasicBlock *JumpThreading::FactorCommonPHIPreds(PHINode *PN, Constant *CstVal) {
/// getJumpThreadDuplicationCost - Return the cost of duplicating this block to
/// thread across it.
static unsigned getJumpThreadDuplicationCost(const BasicBlock *BB) {
BasicBlock::const_iterator I = BB->begin();
/// Ignore PHI nodes, these will be flattened when duplication happens.
while (isa<PHINode>(*I)) ++I;
BasicBlock::const_iterator I = BB->getFirstNonPHI();
// Sum up the cost of each instruction until we get to the terminator. Don't
// include the terminator because the copy won't include it.