llvm/clang/lib/Driver/ToolChains/Arch/AArch64.cpp

//===--- AArch64.cpp - AArch64 (not ARM) Helpers for Tools ------*- C++ -*-===//
//
// 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 "AArch64.h"
#include "../CommonArgs.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/Options.h"
#include "llvm/Option/ArgList.h"
#include "llvm/TargetParser/AArch64TargetParser.h"
#include "llvm/TargetParser/Host.h"

usingnamespaceclang::driver;
usingnamespaceclang::driver::tools;
usingnamespaceclang;
usingnamespacellvm::opt;

/// \returns true if the given triple can determine the default CPU type even
/// if -arch is not specified.
static bool isCPUDeterminedByTriple(const llvm::Triple &Triple) { … }

/// getAArch64TargetCPU - Get the (LLVM) name of the AArch64 cpu we are
/// targeting. Set \p A to the Arg corresponding to the -mcpu argument if it is
/// provided, or to nullptr otherwise.
std::string aarch64::getAArch64TargetCPU(const ArgList &Args,
                                         const llvm::Triple &Triple, Arg *&A) { … }

// Decode AArch64 features from string like +[no]featureA+[no]featureB+...
static bool DecodeAArch64Features(const Driver &D, StringRef text,
                                  llvm::AArch64::ExtensionSet &Extensions) { … }

// Check if the CPU name and feature modifiers in -mcpu are legal. If yes,
// decode CPU and feature.
static bool DecodeAArch64Mcpu(const Driver &D, StringRef Mcpu, StringRef &CPU,
                              llvm::AArch64::ExtensionSet &Extensions) { … }

static bool
getAArch64ArchFeaturesFromMarch(const Driver &D, StringRef March,
                                const ArgList &Args,
                                llvm::AArch64::ExtensionSet &Extensions) { … }

static bool
getAArch64ArchFeaturesFromMcpu(const Driver &D, StringRef Mcpu,
                               const ArgList &Args,
                               llvm::AArch64::ExtensionSet &Extensions) { … }

static bool
getAArch64MicroArchFeaturesFromMtune(const Driver &D, StringRef Mtune,
                                     const ArgList &Args,
                                     std::vector<StringRef> &Features) { … }

static bool
getAArch64MicroArchFeaturesFromMcpu(const Driver &D, StringRef Mcpu,
                                    const ArgList &Args,
                                    std::vector<StringRef> &Features) { … }

void aarch64::getAArch64TargetFeatures(const Driver &D,
                                       const llvm::Triple &Triple,
                                       const ArgList &Args,
                                       std::vector<StringRef> &Features,
                                       bool ForAS) { … }

void aarch64::setPAuthABIInTriple(const Driver &D, const ArgList &Args,
                                  llvm::Triple &Triple) { … }