[llvm-commits] [llvm] r67984 - /llvm/trunk/include/llvm/Value.h

[Chris Lattner]

Author: lattner
Date: Sun Mar 29 00:45:43 2009
New Revision: 67984

URL: http://llvm.org/viewvc/llvm-project?rev=67984&view=rev
Log:
Value* only has 2 bits free as well.

Modified:
    llvm/trunk/include/llvm/Value.h

Modified: llvm/trunk/include/llvm/Value.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Value.h?rev=67984&r1=67983&r2=67984&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Value.h (original)
+++ llvm/trunk/include/llvm/Value.h Sun Mar 29 00:45:43 2009
@@ -303,6 +303,19 @@
   return isa<GlobalVariable>(Val) || isa<Function>(Val) ||
          isa<GlobalAlias>(Val);
 }
+  
+  
+// Value* is only 4-byte aligned.
+template<>
+class PointerLikeTypeTraits<Value*> {
+  typedef Value* PT;
+public:
+  static inline void *getAsVoidPointer(PT P) { return P; }
+  static inline PT getFromVoidPointer(void *P) {
+    return static_cast<PT>(P);
+  }
+  enum { NumLowBitsAvailable = 2 };
+};
 
 } // End llvm namespace