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Add flag that may be used to determine if dead nodes are used. It's temporary 

llvm-svn: 4620
This commit is contained in:
Chris Lattner 2002-11-08 01:22:26 +00:00
parent b0c9b37048
commit 90d5c39415
1 changed files with 4 additions and 1 deletions
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5
llvm/include/llvm/Analysis/DSNode.h
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@ -56,6 +56,9 @@ public:
Incomplete = 1 << 4, // This node may not be complete
Modified = 1 << 5, // This node is modified in this context
Read = 1 << 6, // This node is read in this context
#if 1
DEAD = 1 << 7, // This node is dead and should not be pointed to
#endif
};
/// NodeType - A union of the above bits. "Shadow" nodes do not add any flags
@ -208,11 +211,11 @@ private:
//===----------------------------------------------------------------------===//
// Define inline DSNodeHandle functions that depend on the definition of DSNode
//
inline void DSNodeHandle::setNode(DSNode *n) {
if (N) N->removeReferrer(this);
N = n;
if (N) N->addReferrer(this);
assert(!N || ((N->NodeType & DSNode::DEAD) == 0));
}
inline bool DSNodeHandle::hasLink(unsigned Num) const {