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Revert last checkin. Note that PHI nodes can use basic blocks also!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5956 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-04-26 17:38:26 +00:00
parent 90117cbb6f
commit 6ad5a31324
1 changed files with 8 additions and 1 deletions
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9
include/llvm/Support/CFG.h
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@ -26,7 +26,14 @@ public:
typedef PredIterator<_Ptr,_USE_iterator> _Self;
typedef typename super::pointer pointer;
inline void advancePastConstants() {
// Loop to ignore non terminator uses (for example PHI nodes)...
while (It != BB->use_end() && !isa<TerminatorInst>(*It))
++It;
}
inline PredIterator(_Ptr *bb) : BB(bb), It(bb->use_begin()) {
advancePastConstants();
}
inline PredIterator(_Ptr *bb, bool) : BB(bb), It(bb->use_end()) {}
@ -41,7 +48,7 @@ public:
inline _Self& operator++() { // Preincrement
assert(It != BB->use_end() && "pred_iterator out of range!");
++It;
++It; advancePastConstants();
return *this;
}