[llvm-commits] [llvm] r94013 - in /llvm/trunk: include/llvm/Pass.h lib/Analysis/BasicAliasAnalysis.cpp

[Chris Lattner]

Author: lattner
Date: Wed Jan 20 13:26:14 2010
New Revision: 94013

URL: http://llvm.org/viewvc/llvm-project?rev=94013&view=rev
Log:
add some new methods to adjust this pointers.  Not used yet.

Modified:
    llvm/trunk/include/llvm/Pass.h
    llvm/trunk/lib/Analysis/BasicAliasAnalysis.cpp

Modified: llvm/trunk/include/llvm/Pass.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Pass.h?rev=94013&r1=94012&r2=94013&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Pass.h (original)
+++ llvm/trunk/include/llvm/Pass.h Wed Jan 20 13:26:14 2010
@@ -145,6 +145,14 @@
   ///
   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;

Modified: llvm/trunk/lib/Analysis/BasicAliasAnalysis.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/BasicAliasAnalysis.cpp?rev=94013&r1=94012&r2=94013&view=diff

==============================================================================
--- llvm/trunk/lib/Analysis/BasicAliasAnalysis.cpp (original)
+++ llvm/trunk/lib/Analysis/BasicAliasAnalysis.cpp Wed Jan 20 13:26:14 2010
@@ -153,6 +153,16 @@
 
     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 @@
     /// 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;