forked from OSchip/llvm-project
parent
d75c0438a1
commit
491a52cf22
|
@ -1,72 +0,0 @@
|
|||
//===-- MachineInstrAnnot.cpp ---------------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This file defines Annotations used to pass information between code
|
||||
// generation phases.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "../Target/SparcV9/MachineInstrAnnot.h"
|
||||
#include "../Target/SparcV9/SparcV9TmpInstr.h"
|
||||
#include "llvm/CodeGen/MachineCodeForInstruction.h"
|
||||
#include "llvm/Instructions.h"
|
||||
#include "llvm/Type.h"
|
||||
using namespace llvm;
|
||||
|
||||
CallArgsDescriptor::CallArgsDescriptor(CallInst* _callInstr,
|
||||
TmpInstruction* _retAddrReg,
|
||||
bool _isVarArgs, bool _noPrototype)
|
||||
: callInstr(_callInstr),
|
||||
funcPtr(isa<Function>(_callInstr->getCalledValue())
|
||||
? NULL : _callInstr->getCalledValue()),
|
||||
retAddrReg(_retAddrReg),
|
||||
isVarArgs(_isVarArgs),
|
||||
noPrototype(_noPrototype) {
|
||||
unsigned int numArgs = callInstr->getNumOperands();
|
||||
argInfoVec.reserve(numArgs);
|
||||
assert(callInstr->getOperand(0) == callInstr->getCalledValue()
|
||||
&& "Operand 0 is ignored in the loop below!");
|
||||
for (unsigned int i=1; i < numArgs; ++i)
|
||||
argInfoVec.push_back(CallArgInfo(callInstr->getOperand(i)));
|
||||
|
||||
// Enter this object in the MachineCodeForInstr object of the CallInst.
|
||||
// This transfers ownership of this object.
|
||||
MachineCodeForInstruction::get(callInstr).setCallArgsDescriptor(this);
|
||||
}
|
||||
|
||||
CallInst *CallArgsDescriptor::getReturnValue() const {
|
||||
return (callInstr->getType() == Type::VoidTy? NULL : callInstr);
|
||||
}
|
||||
|
||||
// Mechanism to get the descriptor for a CALL MachineInstr.
|
||||
// We get the LLVM CallInstr from the ret. addr. register argument
|
||||
// of the CALL MachineInstr (which is explicit operand #3 for indirect
|
||||
// calls or the last implicit operand for direct calls). We then get
|
||||
// the CallArgsDescriptor from the MachineCodeForInstruction object for
|
||||
// the CallInstr.
|
||||
// This is roundabout but avoids adding a new map or annotation just
|
||||
// to keep track of CallArgsDescriptors.
|
||||
//
|
||||
CallArgsDescriptor *CallArgsDescriptor::get(const MachineInstr* MI) {
|
||||
const TmpInstruction* retAddrReg =
|
||||
cast<TmpInstruction>(isa<Function>(MI->getOperand(0).getVRegValue())
|
||||
? MI->getImplicitRef(MI->getNumImplicitRefs()-1)
|
||||
: MI->getOperand(2).getVRegValue());
|
||||
|
||||
assert(retAddrReg->getNumOperands() == 1 &&
|
||||
isa<CallInst>(retAddrReg->getOperand(0)) &&
|
||||
"Location of callInstr arg for CALL instr. changed? FIX THIS CODE!");
|
||||
|
||||
const CallInst* callInstr = cast<CallInst>(retAddrReg->getOperand(0));
|
||||
|
||||
CallArgsDescriptor* desc =
|
||||
MachineCodeForInstruction::get(callInstr).getCallArgsDescriptor();
|
||||
assert(desc->getCallInst()==callInstr && "Incorrect call args descriptor?");
|
||||
return desc;
|
||||
}
|
Loading…
Reference in New Issue