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//===- PTXRegisterInfo.cpp - PTX Register Information ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the PTX implementation of the TargetRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#include "PTX.h"
#include "PTXRegisterInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#define GET_REGINFO_MC_DESC
#define GET_REGINFO_TARGET_DESC
#include "PTXGenRegisterInfo.inc"
using namespace llvm;
PTXRegisterInfo::PTXRegisterInfo(PTXTargetMachine &TM,
const TargetInstrInfo &TII)
: PTXGenRegisterInfo() {
}
void PTXRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj,
RegScavenger *RS) const {
unsigned Index;
MachineInstr& MI = *II;
Index = 0;
while (!MI.getOperand(Index).isFI()) {
++Index;
assert(Index < MI.getNumOperands() &&
"Instr does not have a FrameIndex operand!");
}
int FrameIndex = MI.getOperand(Index).getIndex();
DEBUG(dbgs() << "eliminateFrameIndex: " << MI);
DEBUG(dbgs() << "- SPAdj: " << SPAdj << "\n");
DEBUG(dbgs() << "- FrameIndex: " << FrameIndex << "\n");
// This frame index is post stack slot re-use assignments
MI.getOperand(Index).ChangeToImmediate(FrameIndex);
}
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