llvm/llvm/lib/Target/X86/X86ArgumentStackSlotRebase.cpp

//===---- X86ArgumentStackSlotRebase.cpp - rebase argument stack slot -----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This pass replace the frame register with a GPR virtual register and set
// the stack offset for each instruction which reference argument from stack.
//
//===----------------------------------------------------------------------===//

#include "X86.h"
#include "X86InstrBuilder.h"
#include "X86MachineFunctionInfo.h"
#include "X86RegisterInfo.h"
#include "X86Subtarget.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/Function.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"

usingnamespacellvm;

#define DEBUG_TYPE …

namespace {

class X86ArgumentStackSlotPass : public MachineFunctionPass { … };

} // end anonymous namespace

char X86ArgumentStackSlotPass::ID = …;

INITIALIZE_PASS(…)

FunctionPass *llvm::createX86ArgumentStackSlotPass() { … }

static Register getArgBaseReg(MachineFunction &MF) { … }

bool X86ArgumentStackSlotPass::runOnMachineFunction(MachineFunction &MF) { … }