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Add support for gathering sets of must aliases

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llvm-svn: 6971
This commit is contained in:
Chris Lattner 2003-06-29 00:23:11 +00:00
parent 7b5077de46
commit 4b3d2c7c90
1 changed files with 9 additions and 0 deletions
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9
include/llvm/Analysis/AliasAnalysis.h
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@ -76,6 +76,15 @@ public:
return MayAlias;
}
/// getMustAliases - If there are any pointers known that must alias this
/// pointer, return them now. This allows alias-set based alias analyses to
/// perform a form a value numbering (which is exposed by load-vn). If an
/// alias analysis supports this, it should ADD any must aliased pointers to
/// the specified vector.
///
virtual void getMustAliases(Value *P, std::vector<Value*> &RetVals) {}
//===--------------------------------------------------------------------===//
/// Simple mod/ref information...
///