llvm/llvm/lib/CodeGen/SafeStackLayout.cpp

//===- SafeStackLayout.cpp - SafeStack frame layout -----------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

#include "SafeStackLayout.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>

usingnamespacellvm;
usingnamespacellvm::safestack;

#define DEBUG_TYPE …

static cl::opt<bool> ClLayout("safe-stack-layout",
                              cl::desc("enable safe stack layout"), cl::Hidden,
                              cl::init(true));

LLVM_DUMP_METHOD void StackLayout::print(raw_ostream &OS) { … }

void StackLayout::addObject(const Value *V, unsigned Size, Align Alignment,
                            const StackLifetime::LiveRange &Range) { … }

static unsigned AdjustStackOffset(unsigned Offset, unsigned Size,
                                  Align Alignment) { … }

void StackLayout::layoutObject(StackObject &Obj) { … }

void StackLayout::computeLayout() { … }