Add a new file containing just TmpInstruction and its implementation.

Many other pieces of the SparcV9 backend want to use TmpInstruction, but
don't need any other instruction selector baggage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15469 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/SparcV9/SparcV9TmpInstr.cpp

@@ -0,0 +1,60 @@
+//===- SparcV9TmpInstr.cpp - SparcV9 Intermediate Value class -------------===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+// Methods of class for temporary intermediate values used within the current
+// SparcV9 backend.
+//	
+//===----------------------------------------------------------------------===//
+
+#include "SparcV9TmpInstr.h"
+#include "Support/LeakDetector.h"
+
+namespace llvm {
+
+TmpInstruction::TmpInstruction(Value *s1, Value *s2, const std::string &name)
+  : Instruction(s1->getType(), Instruction::UserOp1, name) {
+  Operands.push_back(Use(s1, this));  // s1 must be non-null
+  if (s2)
+    Operands.push_back(Use(s2, this));
+
+  // TmpInstructions should not be garbage checked.
+  LeakDetector::removeGarbageObject(this);
+}
+
+TmpInstruction::TmpInstruction(MachineCodeForInstruction& mcfi,
+                               Value *s1, Value *s2, const std::string &name)
+  : Instruction(s1->getType(), Instruction::UserOp1, name) {
+  mcfi.addTemp(this);
+
+  Operands.push_back(Use(s1, this));  // s1 must be non-null
+  if (s2)
+    Operands.push_back(Use(s2, this));
+
+  // TmpInstructions should not be garbage checked.
+  LeakDetector::removeGarbageObject(this);
+}
+
+// Constructor that requires the type of the temporary to be specified.
+// Both S1 and S2 may be NULL.
+TmpInstruction::TmpInstruction(MachineCodeForInstruction& mcfi,
+                               const Type *Ty, Value *s1, Value* s2,
+                               const std::string &name)
+  : Instruction(Ty, Instruction::UserOp1, name) {
+  mcfi.addTemp(this);
+
+  if (s1) 
+    Operands.push_back(Use(s1, this));
+  if (s2)
+    Operands.push_back(Use(s2, this));
+
+  // TmpInstructions should not be garbage checked.
+  LeakDetector::removeGarbageObject(this);
+}
+
+} // end namespace llvm

lib/Target/SparcV9/SparcV9TmpInstr.h

@@ -0,0 +1,72 @@
+//===-- SparcV9TmpInstr.h ---------------------------------------*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+// Definition of class for temporary intermediate values used within the current
+// SparcV9 backend.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SPARCV9TMPINSTR_H
+#define SPARCV9TMPINSTR_H
+
+#include "llvm/Instruction.h"
+#include "llvm/CodeGen/MachineCodeForInstruction.h"
+
+namespace llvm {
+
+/// TmpInstruction - This class represents temporary intermediate
+/// values used within the SparcV9 machine code for an LLVM instruction.
+/// 
+class TmpInstruction : public Instruction {
+  TmpInstruction(const TmpInstruction &TI)
+    : Instruction(TI.getType(), TI.getOpcode()) {
+    if (!TI.Operands.empty()) {
+      Operands.push_back(Use(TI.Operands[0], this));
+      if (TI.Operands.size() == 2)
+        Operands.push_back(Use(TI.Operands[1], this));
+      else
+        assert(0 && "Bad # operands to TmpInstruction!");
+    }
+  }
+public:
+  // Constructor that uses the type of S1 as the type of the temporary.
+  // s1 must be a valid value.  s2 may be NULL.
+  TmpInstruction(MachineCodeForInstruction &mcfi,
+                 Value *s1, Value *s2 = 0, const std::string &name = "");
+                 
+  // Constructor that uses the type of S1 as the type of the temporary,
+  // but does not require a MachineCodeForInstruction.
+  // s1 must be a valid value.  s2 may be NULL.
+  TmpInstruction(Value *s1, Value *s2 = 0, const std::string &name = "");
+
+  // Constructor that requires the type of the temporary to be specified.
+  // Both S1 and S2 may be NULL.
+  TmpInstruction(MachineCodeForInstruction& mcfi,
+                 const Type *Ty, Value *s1 = 0, Value* s2 = 0,
+                 const std::string &name = "");
+  
+  virtual Instruction *clone() const {
+    assert(0 && "Cannot clone TmpInstructions!");
+    return 0;
+  }
+  virtual const char *getOpcodeName() const { return "TmpInstruction"; }
+  
+  // Methods for support type inquiry through isa, cast, and dyn_cast:
+  static inline bool classof(const TmpInstruction *) { return true; }
+  static inline bool classof(const Instruction *I) {
+    return (I->getOpcode() == Instruction::UserOp1);
+  }
+  static inline bool classof(const Value *V) {
+    return isa<Instruction>(V) && classof(cast<Instruction>(V));
+  }
+};
+
+} // End llvm namespace
+
+#endif