lib/CodeGen/MachineInstrAnnot.cpp

   1 //===-- MachineInstrAnnot.cpp ---------------------------------------------===//
   2 //
   3 //  This file defines Annotations used to pass information between code
   4 //  generation phases.
   5 //
   6 //===----------------------------------------------------------------------===//
   7
   8 #include "llvm/CodeGen/MachineInstrAnnot.h"
   9 #include "llvm/Annotation.h"
  10 #include "llvm/iOther.h"
  11 #include "llvm/Type.h"
  12
  13 AnnotationID CallArgsDescriptor::AID(AnnotationManager::
  14                                      getID("CodeGen::CallArgsDescriptor"));
  15
  16 CallArgsDescriptor::CallArgsDescriptor(const CallInst* _callInstr,
  17                                        TmpInstruction* _retAddrReg,
  18                                        bool _isVarArgs, bool _noPrototype)
  19   : Annotation(AID),
  20     callInstr(_callInstr),
  21     funcPtr(isa<Function>(_callInstr->getCalledValue())
  22             ? NULL : _callInstr->getCalledValue()),
  23     retAddrReg(_retAddrReg),
  24     isVarArgs(_isVarArgs),
  25     noPrototype(_noPrototype)
  26 {
  27   unsigned int numArgs = callInstr->getNumOperands();
  28   argInfoVec.reserve(numArgs);
  29   assert(callInstr->getOperand(0) == callInstr->getCalledValue()
  30          && "Operand 0 is ignored in the loop below!");
  31   for (unsigned int i=1; i < numArgs; ++i)
  32     argInfoVec.push_back(CallArgInfo(callInstr->getOperand(i)));
  33 }
  34
  35
  36 const CallInst*
  37 CallArgsDescriptor::getReturnValue() const
  38 {
  39   return (callInstr->getType() == Type::VoidTy? NULL : callInstr);
  40 }