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Make dominates(A,B) work with post dominators. Patch contributed by

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Naveen Neelakantam, thanks!

llvm-svn: 21543
This commit is contained in:
Chris Lattner 2005-04-25 20:50:33 +00:00
parent 95c14163f6
commit 3aff97254e
1 changed files with 7 additions and 2 deletions
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9
lib/VMCore/Dominators.cpp
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@ -245,8 +245,13 @@ bool DominatorSetBase::dominates(Instruction *A, Instruction *B) const {
BasicBlock::iterator I = BBA->begin();
for (; &*I != A && &*I != B; ++I) /*empty*/;
// A dominates B if it is found first in the basic block...
return &*I == A;
if(!IsPostDominators) {
// A dominates B if it is found first in the basic block.
return &*I == A;
} else {
// A post-dominates B if B is found first in the basic block.
return &*I == B;
}
}