llvm/llvm/lib/CodeGen/LiveStacks.cpp

//===-- LiveStacks.cpp - Live Stack Slot Analysis -------------------------===//
//
// 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 file implements the live stack slot analysis pass. It is analogous to
// live interval analysis except it's analyzing liveness of stack slots rather
// than registers.
//
//===----------------------------------------------------------------------===//

#include "llvm/CodeGen/LiveStacks.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/InitializePasses.h"
usingnamespacellvm;

#define DEBUG_TYPE …

char LiveStacks::ID = …;
INITIALIZE_PASS_BEGIN(LiveStacks, DEBUG_TYPE,
                "Live Stack Slot Analysis", false, false)
INITIALIZE_PASS_DEPENDENCY(SlotIndexesWrapperPass)
INITIALIZE_PASS_END(LiveStacks, DEBUG_TYPE,
                "Live Stack Slot Analysis", false, false)

char &llvm::LiveStacksID = …;

void LiveStacks::getAnalysisUsage(AnalysisUsage &AU) const { … }

void LiveStacks::releaseMemory() { … }

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

LiveInterval &
LiveStacks::getOrCreateInterval(int Slot, const TargetRegisterClass *RC) { … }

/// print - Implement the dump method.
void LiveStacks::print(raw_ostream &OS, const Module*) const { … }