llvm/clang/lib/Basic/TargetInfo.cpp

//===--- TargetInfo.cpp - Information about Target machine ----------------===//
//
// 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 TargetInfo interface.
//
//===----------------------------------------------------------------------===//

#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/AddressSpaces.h"
#include "clang/Basic/CharInfo.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/DiagnosticFrontend.h"
#include "clang/Basic/LangOptions.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/TargetParser/TargetParser.h"
#include <cstdlib>
usingnamespaceclang;

static const LangASMap DefaultAddrSpaceMap = …;
// The fake address space map must have a distinct entry for each
// language-specific address space.
static const LangASMap FakeAddrSpaceMap = …;

// TargetInfo Constructor.
TargetInfo::TargetInfo(const llvm::Triple &T) : … { … }

// Out of line virtual dtor for TargetInfo.
TargetInfo::~TargetInfo() { … }

void TargetInfo::resetDataLayout(StringRef DL, const char *ULP) { … }

bool
TargetInfo::checkCFProtectionBranchSupported(DiagnosticsEngine &Diags) const { … }

CFBranchLabelSchemeKind TargetInfo::getDefaultCFBranchLabelScheme() const { … }

bool TargetInfo::checkCFBranchLabelSchemeSupported(
    const CFBranchLabelSchemeKind Scheme, DiagnosticsEngine &Diags) const { … }

bool
TargetInfo::checkCFProtectionReturnSupported(DiagnosticsEngine &Diags) const { … }

/// getTypeName - Return the user string for the specified integer type enum.
/// For example, SignedShort -> "short".
const char *TargetInfo::getTypeName(IntType T) { … }

/// getTypeConstantSuffix - Return the constant suffix for the specified
/// integer type enum. For example, SignedLong -> "L".
const char *TargetInfo::getTypeConstantSuffix(IntType T) const { … }

/// getTypeFormatModifier - Return the printf format modifier for the
/// specified integer type enum. For example, SignedLong -> "l".

const char *TargetInfo::getTypeFormatModifier(IntType T) { … }

/// getTypeWidth - Return the width (in bits) of the specified integer type
/// enum. For example, SignedInt -> getIntWidth().
unsigned TargetInfo::getTypeWidth(IntType T) const { … }

TargetInfo::IntType TargetInfo::getIntTypeByWidth(
    unsigned BitWidth, bool IsSigned) const { … }

TargetInfo::IntType TargetInfo::getLeastIntTypeByWidth(unsigned BitWidth,
                                                       bool IsSigned) const { … }

FloatModeKind TargetInfo::getRealTypeByWidth(unsigned BitWidth,
                                             FloatModeKind ExplicitType) const { … }

/// getTypeAlign - Return the alignment (in bits) of the specified integer type
/// enum. For example, SignedInt -> getIntAlign().
unsigned TargetInfo::getTypeAlign(IntType T) const { … }

/// isTypeSigned - Return whether an integer types is signed. Returns true if
/// the type is signed; false otherwise.
bool TargetInfo::isTypeSigned(IntType T) { … }

/// adjust - Set forced language options.
/// Apply changes to the target information with respect to certain
/// language options which change the target configuration and adjust
/// the language based on the target options where applicable.
void TargetInfo::adjust(DiagnosticsEngine &Diags, LangOptions &Opts) { … }

bool TargetInfo::initFeatureMap(
    llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU,
    const std::vector<std::string> &FeatureVec) const { … }

ParsedTargetAttr TargetInfo::parseTargetAttr(StringRef Features) const { … }

TargetInfo::CallingConvKind
TargetInfo::getCallingConvKind(bool ClangABICompat4) const { … }

bool TargetInfo::areDefaultedSMFStillPOD(const LangOptions &LangOpts) const { … }

LangAS TargetInfo::getOpenCLTypeAddrSpace(OpenCLTypeKind TK) const { … }

//===----------------------------------------------------------------------===//


static StringRef removeGCCRegisterPrefix(StringRef Name) { … }

/// isValidClobber - Returns whether the passed in string is
/// a valid clobber in an inline asm statement. This is used by
/// Sema.
bool TargetInfo::isValidClobber(StringRef Name) const { … }

/// isValidGCCRegisterName - Returns whether the passed in string
/// is a valid register name according to GCC. This is used by Sema for
/// inline asm statements.
bool TargetInfo::isValidGCCRegisterName(StringRef Name) const { … }

StringRef TargetInfo::getNormalizedGCCRegisterName(StringRef Name,
                                                   bool ReturnCanonical) const { … }

bool TargetInfo::validateOutputConstraint(ConstraintInfo &Info) const { … }

bool TargetInfo::resolveSymbolicName(const char *&Name,
                                     ArrayRef<ConstraintInfo> OutputConstraints,
                                     unsigned &Index) const { … }

bool TargetInfo::validateInputConstraint(
                              MutableArrayRef<ConstraintInfo> OutputConstraints,
                              ConstraintInfo &Info) const { … }

bool TargetInfo::validatePointerAuthKey(const llvm::APSInt &value) const { … }

void TargetInfo::CheckFixedPointBits() const { … }

void TargetInfo::copyAuxTarget(const TargetInfo *Aux) { … }