Delete LoopPass::runOnFunctionBody. It was never used or implemented.

[oota-llvm.git] / include / llvm / Instruction.h

diff --git a/include/llvm/Instruction.h b/include/llvm/Instruction.h
index 9a7f769a94f9c5bb8fd3f13aadac6bc73435ffb7..7d946e85a6d006b325b6f6dea25752bf7950f009 100644 (file)
--- a/include/llvm/Instruction.h
+++ b/include/llvm/Instruction.h
@@ -40,14 +40,6 @@ public:
   // Out of line virtual method, so the vtable, etc has a home.
   ~Instruction();
   
-  /// mayWriteToMemory - Return true if this instruction may modify memory.
-  ///
-  bool mayWriteToMemory() const;
-
-  /// mayReadFromMemory - Return true if this instruction may read memory.
-  ///
-  bool mayReadFromMemory() const;
-  
   /// clone() - Create a copy of 'this' instruction that is identical in all
   /// ways except the following:
   ///   * The instruction has no parent
@@ -101,6 +93,10 @@ public:
   /// immediately before the specified instruction.
   void insertBefore(Instruction *InsertPos);
 
+  /// insertAfter - Insert an unlinked instructions into a basic block
+  /// immediately after the specified instruction.
+  void insertAfter(Instruction *InsertPos);
+
   /// moveBefore - Unlink this instruction from its current basic block and
   /// insert it into the basic block that MovePos lives in, right before
   /// MovePos.
@@ -140,8 +136,7 @@ public:
     return getOpcode() == Shl || getOpcode() == LShr;
   }
 
-  /// isLogicalShift - Return true if this is a logical shift left or a logical
-  /// shift right.
+  /// isArithmeticShift - Return true if this is an arithmetic shift right.
   inline bool isArithmeticShift() const {
     return getOpcode() == AShr;
   }
@@ -178,6 +173,24 @@ public:
   }
   static bool isTrapping(unsigned op);
 
+  /// mayWriteToMemory - Return true if this instruction may modify memory.
+  ///
+  bool mayWriteToMemory() const;
+
+  /// mayReadFromMemory - Return true if this instruction may read memory.
+  ///
+  bool mayReadFromMemory() const;
+
+  /// mayThrow - Return true if this instruction may throw an exception.
+  ///
+  bool mayThrow() const;
+
+  /// mayHaveSideEffects - Return true if the instruction may have side effects.
+  ///
+  bool mayHaveSideEffects() const {
+    return mayWriteToMemory() || mayThrow();
+  }
+
   /// Methods for support type inquiry through isa, cast, and dyn_cast:
   static inline bool classof(const Instruction *) { return true; }
   static inline bool classof(const Value *V) {
@@ -223,6 +236,18 @@ public:
   };
 };
 
+// Instruction* is only 4-byte aligned.
+template<>
+class PointerLikeTypeTraits<Instruction*> {
+  typedef Instruction* 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
 
 #endif