First cut at the Code Generator using the TableGen methodology.

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

diff --git a/include/llvm/iOperators.h b/include/llvm/iOperators.h
index ba64b0faec1ffffd74b13153d2d79627cb399aa2..a211a68a15b11f582ce53057ce959c50a5efddb4 100644 (file)
--- a/include/llvm/iOperators.h
+++ b/include/llvm/iOperators.h
@@ -1,34 +1,59 @@
-//===-- llvm/iBinary.h - Binary Operator node definitions --------*- C++ -*--=//
+//===-- llvm/iOperators.h - Binary Operator node definitions ----*- C++ -*-===//
 //
-// This file contains the declarations of all of the Binary Operator classes.
+// This file contains the declarations of the Binary Operator classes.
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_IBINARY_H
-#define LLVM_IBINARY_H
+#ifndef LLVM_IOPERATORS_H
+#define LLVM_IOPERATORS_H
 
 #include "llvm/InstrTypes.h"
 
-//===----------------------------------------------------------------------===//
-//                 Classes to represent Binary operators
-//===----------------------------------------------------------------------===//
-//
-// All of these classes are subclasses of the BinaryOperator class...
-//
-
-class GenericBinaryInst : public BinaryOperator {
-public:
-  GenericBinaryInst(BinaryOps Opcode, Value *S1, Value *S2, 
-                   const std::string &Name = "")
-    : BinaryOperator(Opcode, S1, S2, Name) {
-  }
-};
-
+/// SetCondInst class - Represent a setCC operator, where CC is eq, ne, lt, gt,
+/// le, or ge.
+///
 class SetCondInst : public BinaryOperator {
   BinaryOps OpType;
 public:
-  SetCondInst(BinaryOps opType, Value *S1, Value *S2, 
-             const std::string &Name = "");
+  SetCondInst(BinaryOps Opcode, Value *LHS, Value *RHS,
+             const std::string &Name = "", Instruction *InsertBefore = 0);
+
+  /// getInverseCondition - Return the inverse of the current condition opcode.
+  /// For example seteq -> setne, setgt -> setle, setlt -> setge, etc...
+  ///
+  BinaryOps getInverseCondition() const {
+    return getInverseCondition(getOpcode());
+  }
+
+  /// getInverseCondition - Static version that you can use without an
+  /// instruction available.
+  ///
+  static BinaryOps getInverseCondition(BinaryOps Opcode);
+
+  /// getSwappedCondition - Return the condition opcode that would be the result
+  /// of exchanging the two operands of the setcc instruction without changing
+  /// the result produced.  Thus, seteq->seteq, setle->setge, setlt->setgt, etc.
+  ///
+  BinaryOps getSwappedCondition() const {
+    return getSwappedCondition(getOpcode());
+  }
+
+  /// getSwappedCondition - Static version that you can use without an
+  /// instruction available.
+  ///
+  static BinaryOps getSwappedCondition(BinaryOps Opcode);
+
+
+  // Methods for support type inquiry through isa, cast, and dyn_cast:
+  static inline bool classof(const SetCondInst *) { return true; }
+  static inline bool classof(const Instruction *I) {
+    return I->getOpcode() == SetEQ || I->getOpcode() == SetNE ||
+           I->getOpcode() == SetLE || I->getOpcode() == SetGE ||
+           I->getOpcode() == SetLT || I->getOpcode() == SetGT;
+  }
+  static inline bool classof(const Value *V) {
+    return isa<Instruction>(V) && classof(cast<Instruction>(V));
+  }
 };
 
 #endif