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add some new methods to adjust this pointers. Not used yet.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94013 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-01-20 19:26:14 +00:00
parent 61186cd3a3
commit 2033097b1f
2 changed files with 28 additions and 0 deletions
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8
include/llvm/Pass.h
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@ -145,6 +145,14 @@ public:
///
virtual void releaseMemory();
/// getAdjustedAnalysisPointer - This method is used when a pass implements
/// an analysis interface through multiple inheritance. If needed, it should
/// override this to adjust the this pointer as needed for the specified pass
/// info.
virtual void *getAdjustedAnalysisPointer(const PassInfo *PI) {
return this;
}
/// verifyAnalysis() - This member can be implemented by a analysis pass to
/// check state of analysis information.
virtual void verifyAnalysis() const;

20
lib/Analysis/BasicAliasAnalysis.cpp
View File

@ -153,6 +153,16 @@ namespace {
virtual void deleteValue(Value *V) {}
virtual void copyValue(Value *From, Value *To) {}
/// getAdjustedAnalysisPointer - This method is used when a pass implements
/// an analysis interface through multiple inheritance. If needed, it should
/// override this to adjust the this pointer as needed for the specified pass
/// info.
virtual void *getAdjustedAnalysisPointer(const PassInfo *PI) {
if (PI->isPassID(&AliasAnalysis::ID))
return (AliasAnalysis*)this;
return this;
}
};
} // End of anonymous namespace
@ -192,6 +202,16 @@ namespace {
/// global) or not.
bool pointsToConstantMemory(const Value *P);
/// getAdjustedAnalysisPointer - This method is used when a pass implements
/// an analysis interface through multiple inheritance. If needed, it should
/// override this to adjust the this pointer as needed for the specified pass
/// info.
virtual void *getAdjustedAnalysisPointer(const PassInfo *PI) {
if (PI->isPassID(&AliasAnalysis::ID))
return (AliasAnalysis*)this;
return this;
}
private:
// VisitedPHIs - Track PHI nodes visited by a aliasCheck() call.
SmallPtrSet<const Value*, 16> VisitedPHIs;