Added a representation of the machine instructions generated

for a VM instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 22 insertions, 4 deletions

diff --git a/include/llvm/Instruction.h b/include/llvm/Instruction.h
index 6b6d31a..fefc1a4 100644
--- a/include/llvm/Instruction.h
+++ b/include/llvm/Instruction.h
@@ -8,16 +8,20 @@
 #ifndef LLVM_INSTRUCTION_H
 #define LLVM_INSTRUCTION_H
 
+#include <vector>
 #include "llvm/User.h"
 
 class Type;
 class BasicBlock;
 class Method;
+class MachineInstr;		// do not include header file MachineInstr.h
+class MachineCodeForVMInstr;
 
 class Instruction : public User {
   BasicBlock *Parent;
   unsigned iType;      // InstructionType
 
+  MachineCodeForVMInstr* machineInstrVec;
   friend class ValueHolder<Instruction,BasicBlock,Method>;
   inline void setParent(BasicBlock *P) { Parent = P; }
 
@@ -27,20 +31,28 @@ public:
 
   // Specialize setName to handle symbol table majik...
   virtual void setName(const string &name);
-
+  
   // clone() - Create a copy of 'this' instruction that is identical in all ways
   // except the following:
   //   * The instruction has no parent
   //   * The instruction has no name
   //
   virtual Instruction *clone() const = 0;
-
+  
+  // Add a machine instruction used to implement this instruction
+  //
+  void addMachineInstruction(MachineInstr* minstr);
+  
   // Accessor methods...
   //
   inline const BasicBlock *getParent() const { return Parent; }
   inline       BasicBlock *getParent()       { return Parent; }
   virtual bool hasSideEffects() const { return false; }  // Memory & Call insts
-
+  inline       MachineCodeForVMInstr&
+		getMachineInstrVec() 	     { return *machineInstrVec; }
+  const vector<Value*>&
+		getTempValuesForMachineCode() const;
+  
   // ---------------------------------------------------------------------------
   // Subclass classification... getInstType() returns a member of 
   // one of the enums that is coming soon (down below)...
@@ -65,7 +77,13 @@ public:
   // isPHINode() - This is used frequently enough to allow it to exist
   inline bool isPHINode() const { return iType == PHINode; }
 
-
+  // dropAllReferences() - This function is in charge of "letting go" of all
+  // objects that this Instruction refers to.  This first lets go of all
+  // references to hidden values generated code for this instruction,
+  // and then drops all references to its operands.
+  // 
+  void dropAllReferences();
+  
   //----------------------------------------------------------------------
   // Exported enumerations...
   //