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Add an AliasSetTracker::copyValue method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16343 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -221,7 +221,8 @@ private:
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void removeFromTracker(AliasSetTracker &AST);
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void addPointer(AliasSetTracker &AST, HashNodePair &Entry, unsigned Size);
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void addPointer(AliasSetTracker &AST, HashNodePair &Entry, unsigned Size,
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bool KnownMustAlias = false);
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void addCallSite(CallSite CS, AliasAnalysis &AA);
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void setVolatile() { Volatile = true; }
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@ -286,15 +287,8 @@ public:
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bool remove(Instruction *I);
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void remove(AliasSet &AS);
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/// deleteValue method - This method is used to remove a pointer value from
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/// the AliasSetTracker entirely. It should be used when an instruction is
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/// deleted from the program to update the AST. If you don't use this, you
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/// would have dangling pointers to deleted instructions.
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///
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void deleteValue(Value *PtrVal);
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/// getAliasSets - Return the alias sets that are active.
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///
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const ilist<AliasSet> &getAliasSets() const { return AliasSets; }
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/// getAliasSetForPointer - Return the alias set that the specified pointer
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@ -313,6 +307,22 @@ public:
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/// this tracker.
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AliasAnalysis &getAliasAnalysis() const { return AA; }
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/// deleteValue method - This method is used to remove a pointer value from
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/// the AliasSetTracker entirely. It should be used when an instruction is
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/// deleted from the program to update the AST. If you don't use this, you
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/// would have dangling pointers to deleted instructions.
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///
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void deleteValue(Value *PtrVal);
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/// copyValue - This method should be used whenever a preexisting value in the
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/// program is copied or cloned, introducing a new value. Note that it is ok
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/// for clients that use this method to introduce the same value multiple
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/// times: if the tracker already knows about a value, it will ignore the
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/// request.
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///
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void copyValue(Value *From, Value *To);
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typedef ilist<AliasSet>::iterator iterator;
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typedef ilist<AliasSet>::const_iterator const_iterator;
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