llvm/llvm/lib/CodeGen/RegAllocPriorityAdvisor.cpp

//===- RegAllocPriorityAdvisor.cpp - live ranges priority advisor ---------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Implementation of the default priority advisor and of the Analysis pass.
//
//===----------------------------------------------------------------------===//

#include "RegAllocPriorityAdvisor.h"
#include "RegAllocGreedy.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/VirtRegMap.h"
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"

usingnamespacellvm;

static cl::opt<RegAllocPriorityAdvisorAnalysis::AdvisorMode> Mode(
    "regalloc-enable-priority-advisor", cl::Hidden,
    cl::init(RegAllocPriorityAdvisorAnalysis::AdvisorMode::Default),
    cl::desc("Enable regalloc advisor mode"),
    cl::values(
        clEnumValN(RegAllocPriorityAdvisorAnalysis::AdvisorMode::Default,
                   "default", "Default"),
        clEnumValN(RegAllocPriorityAdvisorAnalysis::AdvisorMode::Release,
                   "release", "precompiled"),
        clEnumValN(RegAllocPriorityAdvisorAnalysis::AdvisorMode::Development,
                   "development", "for training")));

char RegAllocPriorityAdvisorAnalysis::ID = …;
INITIALIZE_PASS(…)

namespace {
class DefaultPriorityAdvisorAnalysis final
    : public RegAllocPriorityAdvisorAnalysis { … };
} // namespace

template <> Pass *llvm::callDefaultCtor<RegAllocPriorityAdvisorAnalysis>() { … }

StringRef RegAllocPriorityAdvisorAnalysis::getPassName() const { … }

RegAllocPriorityAdvisor::RegAllocPriorityAdvisor(const MachineFunction &MF,
                                                 const RAGreedy &RA,
                                                 SlotIndexes *const Indexes)
    : … { … }