Coverage Report

Created: 2021-08-24 07:12

/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/include/clang/Basic/CodeGenOptions.h
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//===--- CodeGenOptions.h ---------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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//  This file defines the CodeGenOptions interface.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_BASIC_CODEGENOPTIONS_H
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#define LLVM_CLANG_BASIC_CODEGENOPTIONS_H
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#include "clang/Basic/DebugInfoOptions.h"
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#include "clang/Basic/Sanitizers.h"
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#include "clang/Basic/XRayInstr.h"
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#include "llvm/ADT/FloatingPointMode.h"
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#include "llvm/Support/CodeGen.h"
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#include "llvm/Support/Regex.h"
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#include "llvm/Target/TargetOptions.h"
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#include "llvm/Transforms/Instrumentation/AddressSanitizerOptions.h"
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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namespace clang {
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/// Bitfields of CodeGenOptions, split out from CodeGenOptions to ensure
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/// that this large collection of bitfields is a trivial class type.
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class CodeGenOptionsBase {
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  friend class CompilerInvocation;
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public:
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#define CODEGENOPT(Name, Bits, Default) unsigned Name : Bits;
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#define ENUM_CODEGENOPT(Name, Type, Bits, Default)
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#include "clang/Basic/CodeGenOptions.def"
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protected:
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#define CODEGENOPT(Name, Bits, Default)
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#define ENUM_CODEGENOPT(Name, Type, Bits, Default) unsigned Name : Bits;
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#include "clang/Basic/CodeGenOptions.def"
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};
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/// CodeGenOptions - Track various options which control how the code
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/// is optimized and passed to the backend.
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class CodeGenOptions : public CodeGenOptionsBase {
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public:
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  enum InliningMethod {
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    NormalInlining,     // Use the standard function inlining pass.
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    OnlyHintInlining,   // Inline only (implicitly) hinted functions.
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    OnlyAlwaysInlining  // Only run the always inlining pass.
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  };
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  enum VectorLibrary {
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    NoLibrary,         // Don't use any vector library.
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    Accelerate,        // Use the Accelerate framework.
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    LIBMVEC,           // GLIBC vector math library.
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    MASSV,             // IBM MASS vector library.
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    SVML,              // Intel short vector math library.
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    Darwin_libsystem_m // Use Darwin's libsytem_m vector functions.
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  };
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  enum ObjCDispatchMethodKind {
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    Legacy = 0,
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    NonLegacy = 1,
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    Mixed = 2
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  };
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  enum TLSModel {
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    GeneralDynamicTLSModel,
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    LocalDynamicTLSModel,
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    InitialExecTLSModel,
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    LocalExecTLSModel
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  };
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  enum StructReturnConventionKind {
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    SRCK_Default,  // No special option was passed.
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    SRCK_OnStack,  // Small structs on the stack (-fpcc-struct-return).
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    SRCK_InRegs    // Small structs in registers (-freg-struct-return).
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  };
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  enum ProfileInstrKind {
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    ProfileNone,       // Profile instrumentation is turned off.
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    ProfileClangInstr, // Clang instrumentation to generate execution counts
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                       // to use with PGO.
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    ProfileIRInstr,    // IR level PGO instrumentation in LLVM.
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    ProfileCSIRInstr, // IR level PGO context sensitive instrumentation in LLVM.
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  };
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  enum EmbedBitcodeKind {
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    Embed_Off,      // No embedded bitcode.
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    Embed_All,      // Embed both bitcode and commandline in the output.
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    Embed_Bitcode,  // Embed just the bitcode in the output.
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    Embed_Marker    // Embed a marker as a placeholder for bitcode.
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  };
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  // This field stores one of the allowed values for the option
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  // -fbasic-block-sections=.  The allowed values with this option are:
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  // {"labels", "all", "list=<file>", "none"}.
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  //
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  // "labels":      Only generate basic block symbols (labels) for all basic
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  //                blocks, do not generate unique sections for basic blocks.
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  //                Use the machine basic block id in the symbol name to
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  //                associate profile info from virtual address to machine
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  //                basic block.
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  // "all" :        Generate basic block sections for all basic blocks.
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  // "list=<file>": Generate basic block sections for a subset of basic blocks.
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  //                The functions and the machine basic block ids are specified
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  //                in the file.
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  // "none":        Disable sections/labels for basic blocks.
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  std::string BBSections;
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  // If set, override the default value of MCAsmInfo::BinutilsVersion. If
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  // DisableIntegratedAS is specified, the assembly output will consider GNU as
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  // support. "none" means that all ELF features can be used, regardless of
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  // binutils support.
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  std::string BinutilsVersion;
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  enum class FramePointerKind {
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    None,        // Omit all frame pointers.
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    NonLeaf,     // Keep non-leaf frame pointers.
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    All,         // Keep all frame pointers.
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  };
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  enum FiniteLoopsKind {
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    Language, // Not specified, use language standard.
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    Always,   // All loops are assumed to be finite.
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    Never,    // No loop is assumed to be finite.
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  };
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  /// The code model to use (-mcmodel).
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  std::string CodeModel;
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  /// The filename with path we use for coverage data files. The runtime
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  /// allows further manipulation with the GCOV_PREFIX and GCOV_PREFIX_STRIP
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  /// environment variables.
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  std::string CoverageDataFile;
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  /// The filename with path we use for coverage notes files.
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  std::string CoverageNotesFile;
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  /// Regexes separated by a semi-colon to filter the files to instrument.
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  std::string ProfileFilterFiles;
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  /// Regexes separated by a semi-colon to filter the files to not instrument.
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  std::string ProfileExcludeFiles;
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  /// The version string to put into coverage files.
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  char CoverageVersion[4];
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  /// Enable additional debugging information.
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  std::string DebugPass;
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  /// The string to embed in debug information as the current working directory.
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  std::string DebugCompilationDir;
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  /// The string to embed in coverage mapping as the current working directory.
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  std::string CoverageCompilationDir;
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  /// The string to embed in the debug information for the compile unit, if
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  /// non-empty.
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  std::string DwarfDebugFlags;
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  /// The string containing the commandline for the llvm.commandline metadata,
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  /// if non-empty.
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  std::string RecordCommandLine;
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  std::map<std::string, std::string> DebugPrefixMap;
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  std::map<std::string, std::string> CoveragePrefixMap;
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  /// The ABI to use for passing floating point arguments.
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  std::string FloatABI;
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  /// The file to use for dumping bug report by `Debugify` for original
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  /// debug info.
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  std::string DIBugsReportFilePath;
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  /// The floating-point denormal mode to use.
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  llvm::DenormalMode FPDenormalMode = llvm::DenormalMode::getIEEE();
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  /// The floating-point denormal mode to use, for float.
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  llvm::DenormalMode FP32DenormalMode = llvm::DenormalMode::getIEEE();
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  /// The float precision limit to use, if non-empty.
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  std::string LimitFloatPrecision;
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  struct BitcodeFileToLink {
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    /// The filename of the bitcode file to link in.
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    std::string Filename;
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    /// If true, we set attributes functions in the bitcode library according to
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    /// our CodeGenOptions, much as we set attrs on functions that we generate
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    /// ourselves.
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    bool PropagateAttrs = false;
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    /// If true, we use LLVM module internalizer.
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    bool Internalize = false;
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    /// Bitwise combination of llvm::Linker::Flags, passed to the LLVM linker.
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    unsigned LinkFlags = 0;
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  };
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  /// The files specified here are linked in to the module before optimizations.
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  std::vector<BitcodeFileToLink> LinkBitcodeFiles;
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  /// The user provided name for the "main file", if non-empty. This is useful
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  /// in situations where the input file name does not match the original input
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  /// file, for example with -save-temps.
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  std::string MainFileName;
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  /// The name for the split debug info file used for the DW_AT_[GNU_]dwo_name
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  /// attribute in the skeleton CU.
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  std::string SplitDwarfFile;
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  /// Output filename for the split debug info, not used in the skeleton CU.
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  std::string SplitDwarfOutput;
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  /// The name of the relocation model to use.
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  llvm::Reloc::Model RelocationModel;
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  /// If not an empty string, trap intrinsics are lowered to calls to this
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  /// function instead of to trap instructions.
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  std::string TrapFuncName;
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  /// A list of dependent libraries.
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  std::vector<std::string> DependentLibraries;
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  /// A list of linker options to embed in the object file.
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  std::vector<std::string> LinkerOptions;
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  /// Name of the profile file to use as output for -fprofile-instr-generate,
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  /// -fprofile-generate, and -fcs-profile-generate.
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  std::string InstrProfileOutput;
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  /// Name of the profile file to use with -fprofile-sample-use.
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  std::string SampleProfileFile;
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  /// Name of the profile file to use as output for with -fmemory-profile.
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  std::string MemoryProfileOutput;
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  /// Name of the profile file to use as input for -fprofile-instr-use
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  std::string ProfileInstrumentUsePath;
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  /// Name of the profile remapping file to apply to the profile data supplied
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  /// by -fprofile-sample-use or -fprofile-instr-use.
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  std::string ProfileRemappingFile;
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  /// Name of the function summary index file to use for ThinLTO function
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  /// importing.
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  std::string ThinLTOIndexFile;
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  /// Name of a file that can optionally be written with minimized bitcode
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  /// to be used as input for the ThinLTO thin link step, which only needs
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  /// the summary and module symbol table (and not, e.g. any debug metadata).
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  std::string ThinLinkBitcodeFile;
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  /// Prefix to use for -save-temps output.
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  std::string SaveTempsFilePrefix;
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  /// Name of file passed with -fcuda-include-gpubinary option to forward to
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  /// CUDA runtime back-end for incorporating them into host-side object file.
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  std::string CudaGpuBinaryFileName;
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  /// The name of the file to which the backend should save YAML optimization
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  /// records.
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  std::string OptRecordFile;
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  /// The regex that filters the passes that should be saved to the optimization
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  /// records.
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  std::string OptRecordPasses;
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  /// The format used for serializing remarks (default: YAML)
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  std::string OptRecordFormat;
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  /// The name of the partition that symbols are assigned to, specified with
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  /// -fsymbol-partition (see https://lld.llvm.org/Partitions.html).
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  std::string SymbolPartition;
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  enum RemarkKind {
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    RK_Missing,            // Remark argument not present on the command line.
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    RK_Enabled,            // Remark enabled via '-Rgroup'.
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    RK_EnabledEverything,  // Remark enabled via '-Reverything'.
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    RK_Disabled,           // Remark disabled via '-Rno-group'.
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    RK_DisabledEverything, // Remark disabled via '-Rno-everything'.
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    RK_WithPattern,        // Remark pattern specified via '-Rgroup=regexp'.
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  };
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  /// Optimization remark with an optional regular expression pattern.
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  struct OptRemark {
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    RemarkKind Kind;
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    std::string Pattern;
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    std::shared_ptr<llvm::Regex> Regex;
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    /// By default, optimization remark is missing.
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993k
    OptRemark() : Kind(RK_Missing), Pattern(""), Regex(nullptr) {}
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    /// Returns true iff the optimization remark holds a valid regular
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    /// expression.
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6.35M
    bool hasValidPattern() const { return Regex != nullptr; }
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301
    /// Matches the given string against the regex, if there is some.
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5.08M
    bool patternMatches(StringRef String) const {
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5.08M
      return hasValidPattern() && 
Regex->match(String)1.14k
;
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5.08M
    }
305
  };
306
307
  /// Selected optimizations for which we should enable optimization remarks.
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  /// Transformation passes whose name matches the contained (optional) regular
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  /// expression (and support this feature), will emit a diagnostic whenever
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  /// they perform a transformation.
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  OptRemark OptimizationRemark;
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  /// Selected optimizations for which we should enable missed optimization
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  /// remarks. Transformation passes whose name matches the contained (optional)
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  /// regular expression (and support this feature), will emit a diagnostic
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  /// whenever they tried but failed to perform a transformation.
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  OptRemark OptimizationRemarkMissed;
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  /// Selected optimizations for which we should enable optimization analyses.
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  /// Transformation passes whose name matches the contained (optional) regular
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  /// expression (and support this feature), will emit a diagnostic whenever
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  /// they want to explain why they decided to apply or not apply a given
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  /// transformation.
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  OptRemark OptimizationRemarkAnalysis;
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  /// Set of files defining the rules for the symbol rewriting.
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  std::vector<std::string> RewriteMapFiles;
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  /// Set of sanitizer checks that are non-fatal (i.e. execution should be
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  /// continued when possible).
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  SanitizerSet SanitizeRecover;
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  /// Set of sanitizer checks that trap rather than diagnose.
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  SanitizerSet SanitizeTrap;
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  /// List of backend command-line options for -fembed-bitcode.
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  std::vector<uint8_t> CmdArgs;
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  /// A list of all -fno-builtin-* function names (e.g., memset).
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  std::vector<std::string> NoBuiltinFuncs;
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342
  std::vector<std::string> Reciprocals;
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  /// The preferred width for auto-vectorization transforms. This is intended to
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  /// override default transforms based on the width of the architected vector
346
  /// registers.
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  std::string PreferVectorWidth;
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  /// Set of XRay instrumentation kinds to emit.
350
  XRayInstrSet XRayInstrumentationBundle;
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  std::vector<std::string> DefaultFunctionAttrs;
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  /// List of dynamic shared object files to be loaded as pass plugins.
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  std::vector<std::string> PassPlugins;
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  /// Path to allowlist file specifying which objects
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  /// (files, functions) should exclusively be instrumented
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  /// by sanitizer coverage pass.
360
  std::vector<std::string> SanitizeCoverageAllowlistFiles;
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362
  /// The guard style used for stack protector to get a initial value, this
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  /// value usually be gotten from TLS or get from __stack_chk_guard, or some
364
  /// other styles we may implement in the future.
365
  std::string StackProtectorGuard;
366
367
  /// The TLS base register when StackProtectorGuard is "tls", or register used
368
  /// to store the stack canary for "sysreg".
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  /// On x86 this can be "fs" or "gs".
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  /// On AArch64 this can only be "sp_el0".
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  std::string StackProtectorGuardReg;
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  /// Path to ignorelist file specifying which objects
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  /// (files, functions) listed for instrumentation by sanitizer
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  /// coverage pass should actually not be instrumented.
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  std::vector<std::string> SanitizeCoverageIgnorelistFiles;
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  /// Name of the stack usage file (i.e., .su file) if user passes
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  /// -fstack-usage. If empty, it can be implied that -fstack-usage is not
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  /// passed on the command line.
381
  std::string StackUsageOutput;
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  /// Executable and command-line used to create a given CompilerInvocation.
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  /// Most of the time this will be the full -cc1 command.
385
  const char *Argv0 = nullptr;
386
  ArrayRef<const char *> CommandLineArgs;
387
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  /// The minimum hotness value a diagnostic needs in order to be included in
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  /// optimization diagnostics.
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  ///
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  /// The threshold is an Optional value, which maps to one of the 3 states:
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  /// 1. 0            => threshold disabled. All remarks will be printed.
393
  /// 2. positive int => manual threshold by user. Remarks with hotness exceed
394
  ///                    threshold will be printed.
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  /// 3. None         => 'auto' threshold by user. The actual value is not
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  ///                    available at command line, but will be synced with
397
  ///                    hotness threshold from profile summary during
398
  ///                    compilation.
399
  ///
400
  /// If threshold option is not specified, it is disabled by default.
401
  Optional<uint64_t> DiagnosticsHotnessThreshold = 0;
402
403
public:
404
  // Define accessors/mutators for code generation options of enumeration type.
405
#define CODEGENOPT(Name, Bits, Default)
406
#define ENUM_CODEGENOPT(Name, Type, Bits, Default) \
407
6.83M
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getProfileUse() const
Line
Count
Source
407
222k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getDebugInfo() const
Line
Count
Source
407
4.12M
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getCompressDebugSections() const
Line
Count
Source
407
20.0k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getFramePointer() const
Line
Count
Source
407
447k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getEmbedBitcode() const
Line
Count
Source
407
19.9k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getObjCDispatchMethod() const
Line
Count
Source
407
11.6k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getProfileInstr() const
Line
Count
Source
407
1.35M
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getStructReturnConvention() const
Line
Count
Source
407
3.16k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getSanitizeAddressUseAfterReturn() const
Line
Count
Source
407
117
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getSanitizeAddressDtor() const
Line
Count
Source
407
117
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getFiniteLoops() const
Line
Count
Source
407
331k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getDebuggerTuning() const
Line
Count
Source
407
111k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getInlining() const
Line
Count
Source
407
152k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getVecLib() const
Line
Count
Source
407
24.3k
  Type get##Name() const { return static_cast<Type>(Name); } \
clang::CodeGenOptions::getDefaultTLSModel() const
Line
Count
Source
407
620
  Type get##Name() const { return static_cast<Type>(Name); } \
408
3.11M
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setCompressDebugSections(llvm::DebugCompressionType)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setFramePointer(clang::CodeGenOptions::FramePointerKind)
Line
Count
Source
408
219k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setEmbedBitcode(clang::CodeGenOptions::EmbedBitcodeKind)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setObjCDispatchMethod(clang::CodeGenOptions::ObjCDispatchMethodKind)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setProfileInstr(clang::CodeGenOptions::ProfileInstrKind)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setProfileUse(clang::CodeGenOptions::ProfileInstrKind)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setStructReturnConvention(clang::CodeGenOptions::StructReturnConventionKind)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setSanitizeAddressUseAfterReturn(llvm::AsanDetectStackUseAfterReturnMode)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setSanitizeAddressDtor(llvm::AsanDtorKind)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setFiniteLoops(clang::CodeGenOptions::FiniteLoopsKind)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setDebugInfo(clang::codegenoptions::DebugInfoKind)
Line
Count
Source
408
228k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setDebuggerTuning(llvm::DebuggerKind)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setInlining(clang::CodeGenOptions::InliningMethod)
Line
Count
Source
408
335k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setVecLib(clang::CodeGenOptions::VectorLibrary)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
clang::CodeGenOptions::setDefaultTLSModel(clang::CodeGenOptions::TLSModel)
Line
Count
Source
408
194k
  void set##Name(Type Value) { Name = static_cast<unsigned>(Value); }
409
#include "clang/Basic/CodeGenOptions.def"
410
411
  CodeGenOptions();
412
413
0
  const std::vector<std::string> &getNoBuiltinFuncs() const {
414
0
    return NoBuiltinFuncs;
415
0
  }
416
417
  /// Check if Clang profile instrumenation is on.
418
942k
  bool hasProfileClangInstr() const {
419
942k
    return getProfileInstr() == ProfileClangInstr;
420
942k
  }
421
422
  /// Check if IR level profile instrumentation is on.
423
20.1k
  bool hasProfileIRInstr() const {
424
20.1k
    return getProfileInstr() == ProfileIRInstr;
425
20.1k
  }
426
427
  /// Check if CS IR level profile instrumentation is on.
428
20.1k
  bool hasProfileCSIRInstr() const {
429
20.1k
    return getProfileInstr() == ProfileCSIRInstr;
430
20.1k
  }
431
432
  /// Check if Clang profile use is on.
433
45.6k
  bool hasProfileClangUse() const {
434
45.6k
    return getProfileUse() == ProfileClangInstr;
435
45.6k
  }
436
437
  /// Check if IR level profile use is on.
438
20.1k
  bool hasProfileIRUse() const {
439
20.1k
    return getProfileUse() == ProfileIRInstr ||
440
20.1k
           
getProfileUse() == ProfileCSIRInstr20.0k
;
441
20.1k
  }
442
443
  /// Check if CSIR profile use is on.
444
96
  bool hasProfileCSIRUse() const { return getProfileUse() == ProfileCSIRInstr; }
445
446
  /// Check if type and variable info should be emitted.
447
1.81M
  bool hasReducedDebugInfo() const {
448
1.81M
    return getDebugInfo() >= codegenoptions::DebugInfoConstructor;
449
1.81M
  }
450
451
  /// Check if maybe unused type info should be emitted.
452
2.14M
  bool hasMaybeUnusedDebugInfo() const {
453
2.14M
    return getDebugInfo() >= codegenoptions::UnusedTypeInfo;
454
2.14M
  }
455
456
  // Check if any one of SanitizeCoverage* is enabled.
457
156k
  bool hasSanitizeCoverage() const {
458
156k
    return SanitizeCoverageType || 
SanitizeCoverageIndirectCalls156k
||
459
156k
           
SanitizeCoverageTraceCmp156k
;
460
156k
  }
461
};
462
463
}  // end namespace clang
464
465
#endif