From 6b118a2122f8f7da954fbfbcdec05c331e3fd625 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 24 Jul 2009 18:12:25 +0000
Subject: [PATCH] Add specific classes for Add, Sub, and Mul, for convenience.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76981 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Operator.h | 51 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/include/llvm/Operator.h b/include/llvm/Operator.h
index 541f13d8591..452e1292c78 100644
--- a/include/llvm/Operator.h
+++ b/include/llvm/Operator.h
@@ -101,6 +101,57 @@ public:
   }
 };
 
+/// AddOperator - Utility class for integer addition operators.
+///
+class AddOperator : public OverflowingBinaryOperator {
+public:
+  static inline bool classof(const AddOperator *) { return true; }
+  static inline bool classof(const Instruction *I) {
+    return I->getOpcode() == Instruction::Add;
+  }
+  static inline bool classof(const ConstantExpr *CE) {
+    return CE->getOpcode() == Instruction::Add;
+  }
+  static inline bool classof(const Value *V) {
+    return (isa<Instruction>(V) && classof(cast<Instruction>(V))) ||
+           (isa<ConstantExpr>(V) && classof(cast<ConstantExpr>(V)));
+  }
+};
+
+/// SubOperator - Utility class for integer subtraction operators.
+///
+class SubOperator : public OverflowingBinaryOperator {
+public:
+  static inline bool classof(const SubOperator *) { return true; }
+  static inline bool classof(const Instruction *I) {
+    return I->getOpcode() == Instruction::Sub;
+  }
+  static inline bool classof(const ConstantExpr *CE) {
+    return CE->getOpcode() == Instruction::Sub;
+  }
+  static inline bool classof(const Value *V) {
+    return (isa<Instruction>(V) && classof(cast<Instruction>(V))) ||
+           (isa<ConstantExpr>(V) && classof(cast<ConstantExpr>(V)));
+  }
+};
+
+/// MulOperator - Utility class for integer multiplication operators.
+///
+class MulOperator : public OverflowingBinaryOperator {
+public:
+  static inline bool classof(const MulOperator *) { return true; }
+  static inline bool classof(const Instruction *I) {
+    return I->getOpcode() == Instruction::Mul;
+  }
+  static inline bool classof(const ConstantExpr *CE) {
+    return CE->getOpcode() == Instruction::Mul;
+  }
+  static inline bool classof(const Value *V) {
+    return (isa<Instruction>(V) && classof(cast<Instruction>(V))) ||
+           (isa<ConstantExpr>(V) && classof(cast<ConstantExpr>(V)));
+  }
+};
+
 /// SDivOperator - An Operator with opcode Instruction::SDiv.
 ///
 class SDivOperator : public Operator {