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authorRoman Divacky <rdivacky@FreeBSD.org>2010-04-06 15:52:58 +0000
committerRoman Divacky <rdivacky@FreeBSD.org>2010-04-06 15:52:58 +0000
commit9f4a1da9a0a56a0b0a7f8249f34b3cdea6179c41 (patch)
tree0dd020f28a4846707f8d60717d9b2921ea187bd8 /lib/Transforms/Utils/BasicBlockUtils.cpp
parentb5efedaf2ab20d844d5a21cdef76b55acbf4f01c (diff)
Notes
Diffstat (limited to 'lib/Transforms/Utils/BasicBlockUtils.cpp')
-rw-r--r--lib/Transforms/Utils/BasicBlockUtils.cpp22
1 files changed, 10 insertions, 12 deletions
diff --git a/lib/Transforms/Utils/BasicBlockUtils.cpp b/lib/Transforms/Utils/BasicBlockUtils.cpp
index 1f62dabb2014b..2f1ae005a4fd7 100644
--- a/lib/Transforms/Utils/BasicBlockUtils.cpp
+++ b/lib/Transforms/Utils/BasicBlockUtils.cpp
@@ -336,21 +336,19 @@ BasicBlock *llvm::SplitBlock(BasicBlock *Old, Instruction *SplitPt, Pass *P) {
if (Loop *L = LI->getLoopFor(Old))
L->addBasicBlockToLoop(New, LI->getBase());
- if (DominatorTree *DT = P->getAnalysisIfAvailable<DominatorTree>())
- {
- // Old dominates New. New node domiantes all other nodes dominated by Old.
- DomTreeNode *OldNode = DT->getNode(Old);
- std::vector<DomTreeNode *> Children;
- for (DomTreeNode::iterator I = OldNode->begin(), E = OldNode->end();
- I != E; ++I)
- Children.push_back(*I);
-
- DomTreeNode *NewNode = DT->addNewBlock(New,Old);
-
+ if (DominatorTree *DT = P->getAnalysisIfAvailable<DominatorTree>()) {
+ // Old dominates New. New node domiantes all other nodes dominated by Old.
+ DomTreeNode *OldNode = DT->getNode(Old);
+ std::vector<DomTreeNode *> Children;
+ for (DomTreeNode::iterator I = OldNode->begin(), E = OldNode->end();
+ I != E; ++I)
+ Children.push_back(*I);
+
+ DomTreeNode *NewNode = DT->addNewBlock(New,Old);
for (std::vector<DomTreeNode *>::iterator I = Children.begin(),
E = Children.end(); I != E; ++I)
DT->changeImmediateDominator(*I, NewNode);
- }
+ }
if (DominanceFrontier *DF = P->getAnalysisIfAvailable<DominanceFrontier>())
DF->splitBlock(Old);