[llvm-commits] CVS: llvm/include/llvm/Instruction.def iOther.h

[Chris Lattner]

Changes in directory llvm/include/llvm:

Instruction.def updated: 1.5 -> 1.6
iOther.h updated: 1.32 -> 1.33

---
Log message:

Add new VarArgInst class for the va_arg instruction


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Diffs of the changes:

Index: llvm/include/llvm/Instruction.def
diff -u llvm/include/llvm/Instruction.def:1.5 llvm/include/llvm/Instruction.def:1.6
--- llvm/include/llvm/Instruction.def:1.5	Tue Sep 10 10:27:31 2002
+++ llvm/include/llvm/Instruction.def	Wed May  7 21:42:50 2003
@@ -119,10 +119,11 @@
 
 HANDLE_OTHER_INST(29, Shl    , ShiftInst  )  // Shift operations
 HANDLE_OTHER_INST(30, Shr    , ShiftInst  )
+HANDLE_OTHER_INST(31, VarArg , VarArgInst )  // va_arg instruction
 
-HANDLE_OTHER_INST(31, UserOp1, Instruction)  // May be used internally in a pass
-HANDLE_OTHER_INST(32, UserOp2, Instruction)
-  LAST_OTHER_INST(32)
+HANDLE_OTHER_INST(32, UserOp1, Instruction)  // May be used internally in a pass
+HANDLE_OTHER_INST(33, UserOp2, Instruction)
+  LAST_OTHER_INST(33)
 
 #undef  FIRST_TERM_INST
 #undef HANDLE_TERM_INST


Index: llvm/include/llvm/iOther.h
diff -u llvm/include/llvm/iOther.h:1.32 llvm/include/llvm/iOther.h:1.33
--- llvm/include/llvm/iOther.h:1.32	Mon Feb 24 14:48:28 2003
+++ llvm/include/llvm/iOther.h	Wed May  7 21:42:50 2003
@@ -121,4 +121,40 @@
   }
 };
 
+
+//===----------------------------------------------------------------------===//
+//                               VarArgInst Class
+//===----------------------------------------------------------------------===//
+
+/// VarArgInst - This class represents the va_arg llvm instruction, which reads
+/// an argument of the destination type from the va_list operand pointed to by
+/// the only operand.
+///
+class VarArgInst : public Instruction {
+  VarArgInst(const VarArgInst &VAI) : Instruction(VAI.getType(), VarArg) {
+    Operands.reserve(1);
+    Operands.push_back(Use(VAI.Operands[0], this));
+  }
+public:
+  VarArgInst(Value *S, const Type *Ty, const std::string &Name = "",
+             Instruction *InsertBefore = 0)
+    : Instruction(Ty, VarArg, Name, InsertBefore) {
+    Operands.reserve(1);
+    Operands.push_back(Use(S, this));
+  }
+
+  virtual Instruction *clone() const { return new VarArgInst(*this); }
+
+  bool mayWriteToMemory() const { return true; }
+
+  // Methods for support type inquiry through isa, cast, and dyn_cast:
+  static inline bool classof(const VarArgInst *) { return true; }
+  static inline bool classof(const Instruction *I) {
+    return I->getOpcode() == VarArg;
+  }
+  static inline bool classof(const Value *V) {
+    return isa<Instruction>(V) && classof(cast<Instruction>(V));
+  }
+};
+
 #endif