This patch adds new functions to the SectionRef and ObjectFile interfaces to determin...

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

diff --git a/include/llvm/Instruction.h b/include/llvm/Instruction.h
index a386d1de42f5a0b1e478585e32a2d7f171ad57a1..c85eda28f42ed70b705553bae05cab6997e1b309 100644 (file)
--- a/include/llvm/Instruction.h
+++ b/include/llvm/Instruction.h
@@ -28,8 +28,8 @@ template<typename ValueSubClass, typename ItemParentClass>
   class SymbolTableListTraits;
 
 class Instruction : public User, public ilist_node<Instruction> {
-  void operator=(const Instruction &);     // Do not implement
-  Instruction(const Instruction &);        // Do not implement
+  void operator=(const Instruction &) LLVM_DELETED_FUNCTION;
+  Instruction(const Instruction &) LLVM_DELETED_FUNCTION;
 
   BasicBlock *Parent;
   DebugLoc DbgLoc;                         // 'dbg' Metadata cache.
@@ -281,6 +281,16 @@ public:
   /// ignores the SubclassOptionalData flags, which specify conditions
   /// under which the instruction's result is undefined.
   bool isIdenticalToWhenDefined(const Instruction *I) const;
+
+  /// When checking for operation equivalence (using isSameOperationAs) it is
+  /// sometimes useful to ignore certain attributes.
+  enum OperationEquivalenceFlags {
+    /// Check for equivalence ignoring load/store alignment.
+    CompareIgnoringAlignment = 1<<0,
+    /// Check for equivalence treating a type and a vector of that type
+    /// as equivalent.
+    CompareUsingScalarTypes = 1<<1
+  };
   
   /// This function determines if the specified instruction executes the same
   /// operation as the current one. This means that the opcodes, type, operand
@@ -290,7 +300,7 @@ public:
   /// @returns true if the specified instruction is the same operation as
   /// the current one.
   /// @brief Determine if one instruction is the same operation as another.
-  bool isSameOperationAs(const Instruction *I) const;
+  bool isSameOperationAs(const Instruction *I, unsigned flags = 0) const;
   
   /// isUsedOutsideOfBlock - Return true if there are any uses of this
   /// instruction in blocks other than the specified block.  Note that PHI nodes