diff options
Diffstat (limited to 'include/llvm/Use.h')
| -rw-r--r-- | include/llvm/Use.h | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/include/llvm/Use.h b/include/llvm/Use.h index ccbdd7f..a496325 100644 --- a/include/llvm/Use.h +++ b/include/llvm/Use.h @@ -60,6 +60,10 @@ public: /// that also works with less standard-compliant compilers void swap(Use &RHS); + // A type for the word following an array of hung-off Uses in memory, which is + // a pointer back to their User with the bottom bit set. + typedef PointerIntPair<User*, 1, unsigned> UserRef; + private: /// Copy ctor - do not implement Use(const Use &U); @@ -108,13 +112,16 @@ public: Use *getNext() const { return Next; } + /// initTags - initialize the waymarking tags on an array of Uses, so that + /// getUser() can find the User from any of those Uses. + static Use *initTags(Use *Start, Use *Stop); + /// zap - This is used to destroy Use operands when the number of operands of /// a User changes. static void zap(Use *Start, const Use *Stop, bool del = false); private: const Use* getImpliedUser() const; - static Use *initTags(Use *Start, Use *Stop); Value *Val; Use *Next; @@ -136,7 +143,6 @@ private: } friend class Value; - friend class User; }; // simplify_type - Allow clients to treat uses just like values when using @@ -208,15 +214,6 @@ public: unsigned getOperandNo() const; }; -//===----------------------------------------------------------------------===// -// AugmentedUse layout struct -//===----------------------------------------------------------------------===// - -struct AugmentedUse : public Use { - PointerIntPair<User*, 1, unsigned> ref; - AugmentedUse(); // not implemented -}; - } // End llvm namespace #endif |
