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Fix logical error in TD pass: we should clear Mod/Ref bits of each caller

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before inlining their graphs into a function.  To support this,
added flags to CloneFlags to strip/keep Mod/Ref bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4836 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vikram S. Adve
2002-11-27 17:41:13 +00:00
parent e127a14991
commit 61ff02982f
3 changed files with 17 additions and 8 deletions
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9
lib/Analysis/DataStructure/DataStructure.cpp
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@ -598,9 +598,14 @@ DSNodeHandle DSGraph::cloneInto(const DSGraph &G,
Nodes[i]->remapLinks(OldNodeMap);
// Remove alloca markers as specified
if (CloneFlags & StripAllocaBit)
if (CloneFlags & (StripAllocaBit | StripModRefBits)) {
unsigned short clearBits = (CloneFlags & StripAllocaBit
? DSNode::AllocaNode : 0)
| (CloneFlags & StripModRefBits
? (DSNode::Modified | DSNode::Read) : 0);
for (unsigned i = FN, e = Nodes.size(); i != e; ++i)
Nodes[i]->NodeType &= ~DSNode::AllocaNode;
Nodes[i]->NodeType &= ~clearBits;
}
// Copy the value map... and merge all of the global nodes...
for (std::map<Value*, DSNodeHandle>::const_iterator I = G.ScalarMap.begin(),