diff options
| author | Gabor Greif <ggreif@gmail.com> | 2009-01-23 19:40:15 +0000 |
|---|---|---|
| committer | Gabor Greif <ggreif@gmail.com> | 2009-01-23 19:40:15 +0000 |
| commit | a36791da41cf4f635e50077b290676b873836bda (patch) | |
| tree | 93f751d2adbba6056d4f2e16b04288a5864f238d /lib/Transforms/Scalar/CodeGenPrepare.cpp | |
| parent | 60789e419e04c260e36af9a1add5ad316313e490 (diff) | |
Simplify the logic of getting hold of a PHI predecessor block.
There is now a direct way from value-use-iterator to incoming block in PHINode's API.
This way we avoid the iterator->index->iterator trip, and especially the costly
getOperandNo() invocation. Additionally there is now an assertion that the iterator
really refers to one of the PHI's Uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62869 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/CodeGenPrepare.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/CodeGenPrepare.cpp | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/CodeGenPrepare.cpp b/lib/Transforms/Scalar/CodeGenPrepare.cpp index 59c6586532..0a1c641e2b 100644 --- a/lib/Transforms/Scalar/CodeGenPrepare.cpp +++ b/lib/Transforms/Scalar/CodeGenPrepare.cpp @@ -459,8 +459,7 @@ static bool OptimizeNoopCopyExpression(CastInst *CI, const TargetLowering &TLI){ // appropriate predecessor block. BasicBlock *UserBB = User->getParent(); if (PHINode *PN = dyn_cast<PHINode>(User)) { - unsigned OpVal = UI.getOperandNo()/2; - UserBB = PN->getIncomingBlock(OpVal); + UserBB = PN->getIncomingBlock(UI); } // Preincrement use iterator so we don't invalidate it. |