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+//===-- llvm/ADT/Triple.h - Target triple helper class ----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ADT_TRIPLE_H
+#define LLVM_ADT_TRIPLE_H
+
+#include "llvm/ADT/Twine.h"
+
+// Some system headers or GCC predefined macros conflict with identifiers in
+// this file. Undefine them here.
+#undef NetBSD
+#undef mips
+#undef sparc
+
+namespace llvm {
+
+/// Triple - Helper class for working with autoconf configuration names. For
+/// historical reasons, we also call these 'triples' (they used to contain
+/// exactly three fields).
+///
+/// Configuration names are strings in the canonical form:
+/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM
+/// or
+/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM-ENVIRONMENT
+///
+/// This class is used for clients which want to support arbitrary
+/// configuration names, but also want to implement certain special
+/// behavior for particular configurations. This class isolates the mapping
+/// from the components of the configuration name to well known IDs.
+///
+/// At its core the Triple class is designed to be a wrapper for a triple
+/// string; the constructor does not change or normalize the triple string.
+/// Clients that need to handle the non-canonical triples that users often
+/// specify should use the normalize method.
+///
+/// See autoconf/config.guess for a glimpse into what configuration names
+/// look like in practice.
+class Triple {
+public:
+ enum ArchType {
+ UnknownArch,
+
+ arm, // ARM (little endian): arm, armv.*, xscale
+ armeb, // ARM (big endian): armeb
+ aarch64, // AArch64 (little endian): aarch64
+ aarch64_be, // AArch64 (big endian): aarch64_be
+ arc, // ARC: Synopsys ARC
+ avr, // AVR: Atmel AVR microcontroller
+ bpfel, // eBPF or extended BPF or 64-bit BPF (little endian)
+ bpfeb, // eBPF or extended BPF or 64-bit BPF (big endian)
+ hexagon, // Hexagon: hexagon
+ mips, // MIPS: mips, mipsallegrex
+ mipsel, // MIPSEL: mipsel, mipsallegrexel
+ mips64, // MIPS64: mips64
+ mips64el, // MIPS64EL: mips64el
+ msp430, // MSP430: msp430
+ nios2, // NIOSII: nios2
+ ppc, // PPC: powerpc
+ ppc64, // PPC64: powerpc64, ppu
+ ppc64le, // PPC64LE: powerpc64le
+ r600, // R600: AMD GPUs HD2XXX - HD6XXX
+ amdgcn, // AMDGCN: AMD GCN GPUs
+ riscv32, // RISC-V (32-bit): riscv32
+ riscv64, // RISC-V (64-bit): riscv64
+ sparc, // Sparc: sparc
+ sparcv9, // Sparcv9: Sparcv9
+ sparcel, // Sparc: (endianness = little). NB: 'Sparcle' is a CPU variant
+ systemz, // SystemZ: s390x
+ tce, // TCE (http://tce.cs.tut.fi/): tce
+ tcele, // TCE little endian (http://tce.cs.tut.fi/): tcele
+ thumb, // Thumb (little endian): thumb, thumbv.*
+ thumbeb, // Thumb (big endian): thumbeb
+ x86, // X86: i[3-9]86
+ x86_64, // X86-64: amd64, x86_64
+ xcore, // XCore: xcore
+ nvptx, // NVPTX: 32-bit
+ nvptx64, // NVPTX: 64-bit
+ le32, // le32: generic little-endian 32-bit CPU (PNaCl)
+ le64, // le64: generic little-endian 64-bit CPU (PNaCl)
+ amdil, // AMDIL
+ amdil64, // AMDIL with 64-bit pointers
+ hsail, // AMD HSAIL
+ hsail64, // AMD HSAIL with 64-bit pointers
+ spir, // SPIR: standard portable IR for OpenCL 32-bit version
+ spir64, // SPIR: standard portable IR for OpenCL 64-bit version
+ kalimba, // Kalimba: generic kalimba
+ shave, // SHAVE: Movidius vector VLIW processors
+ lanai, // Lanai: Lanai 32-bit
+ wasm32, // WebAssembly with 32-bit pointers
+ wasm64, // WebAssembly with 64-bit pointers
+ renderscript32, // 32-bit RenderScript
+ renderscript64, // 64-bit RenderScript
+ LastArchType = renderscript64
+ };
+ enum SubArchType {
+ NoSubArch,
+
+ ARMSubArch_v8_3a,
+ ARMSubArch_v8_2a,
+ ARMSubArch_v8_1a,
+ ARMSubArch_v8,
+ ARMSubArch_v8r,
+ ARMSubArch_v8m_baseline,
+ ARMSubArch_v8m_mainline,
+ ARMSubArch_v7,
+ ARMSubArch_v7em,
+ ARMSubArch_v7m,
+ ARMSubArch_v7s,
+ ARMSubArch_v7k,
+ ARMSubArch_v7ve,
+ ARMSubArch_v6,
+ ARMSubArch_v6m,
+ ARMSubArch_v6k,
+ ARMSubArch_v6t2,
+ ARMSubArch_v5,
+ ARMSubArch_v5te,
+ ARMSubArch_v4t,
+
+ KalimbaSubArch_v3,
+ KalimbaSubArch_v4,
+ KalimbaSubArch_v5
+ };
+ enum VendorType {
+ UnknownVendor,
+
+ Apple,
+ PC,
+ SCEI,
+ BGP,
+ BGQ,
+ Freescale,
+ IBM,
+ ImaginationTechnologies,
+ MipsTechnologies,
+ NVIDIA,
+ CSR,
+ Myriad,
+ AMD,
+ Mesa,
+ SUSE,
+ LastVendorType = SUSE
+ };
+ enum OSType {
+ UnknownOS,
+
+ Ananas,
+ CloudABI,
+ Darwin,
+ DragonFly,
+ FreeBSD,
+ Fuchsia,
+ IOS,
+ KFreeBSD,
+ Linux,
+ Lv2, // PS3
+ MacOSX,
+ NetBSD,
+ OpenBSD,
+ Solaris,
+ Win32,
+ Haiku,
+ Minix,
+ RTEMS,
+ NaCl, // Native Client
+ CNK, // BG/P Compute-Node Kernel
+ AIX,
+ CUDA, // NVIDIA CUDA
+ NVCL, // NVIDIA OpenCL
+ AMDHSA, // AMD HSA Runtime
+ PS4,
+ ELFIAMCU,
+ TvOS, // Apple tvOS
+ WatchOS, // Apple watchOS
+ Mesa3D,
+ Contiki,
+ AMDPAL, // AMD PAL Runtime
+ LastOSType = AMDPAL
+ };
+ enum EnvironmentType {
+ UnknownEnvironment,
+
+ GNU,
+ GNUABIN32,
+ GNUABI64,
+ GNUEABI,
+ GNUEABIHF,
+ GNUX32,
+ CODE16,
+ EABI,
+ EABIHF,
+ Android,
+ Musl,
+ MuslEABI,
+ MuslEABIHF,
+
+ MSVC,
+ Itanium,
+ Cygnus,
+ CoreCLR,
+ Simulator, // Simulator variants of other systems, e.g., Apple's iOS
+ LastEnvironmentType = Simulator
+ };
+ enum ObjectFormatType {
+ UnknownObjectFormat,
+
+ COFF,
+ ELF,
+ MachO,
+ Wasm,
+ };
+
+private:
+ std::string Data;
+
+ /// The parsed arch type.
+ ArchType Arch;
+
+ /// The parsed subarchitecture type.
+ SubArchType SubArch;
+
+ /// The parsed vendor type.
+ VendorType Vendor;
+
+ /// The parsed OS type.
+ OSType OS;
+
+ /// The parsed Environment type.
+ EnvironmentType Environment;
+
+ /// The object format type.
+ ObjectFormatType ObjectFormat;
+
+public:
+ /// @name Constructors
+ /// @{
+
+ /// Default constructor is the same as an empty string and leaves all
+ /// triple fields unknown.
+ Triple()
+ : Data(), Arch(), SubArch(), Vendor(), OS(), Environment(),
+ ObjectFormat() {}
+
+ explicit Triple(const Twine &Str);
+ Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr);
+ Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr,
+ const Twine &EnvironmentStr);
+
+ bool operator==(const Triple &Other) const {
+ return Arch == Other.Arch && SubArch == Other.SubArch &&
+ Vendor == Other.Vendor && OS == Other.OS &&
+ Environment == Other.Environment &&
+ ObjectFormat == Other.ObjectFormat;
+ }
+
+ bool operator!=(const Triple &Other) const {
+ return !(*this == Other);
+ }
+
+ /// @}
+ /// @name Normalization
+ /// @{
+
+ /// normalize - Turn an arbitrary machine specification into the canonical
+ /// triple form (or something sensible that the Triple class understands if
+ /// nothing better can reasonably be done). In particular, it handles the
+ /// common case in which otherwise valid components are in the wrong order.
+ static std::string normalize(StringRef Str);
+
+ /// Return the normalized form of this triple's string.
+ std::string normalize() const { return normalize(Data); }
+
+ /// @}
+ /// @name Typed Component Access
+ /// @{
+
+ /// getArch - Get the parsed architecture type of this triple.
+ ArchType getArch() const { return Arch; }
+
+ /// getSubArch - get the parsed subarchitecture type for this triple.
+ SubArchType getSubArch() const { return SubArch; }
+
+ /// getVendor - Get the parsed vendor type of this triple.
+ VendorType getVendor() const { return Vendor; }
+
+ /// getOS - Get the parsed operating system type of this triple.
+ OSType getOS() const { return OS; }
+
+ /// hasEnvironment - Does this triple have the optional environment
+ /// (fourth) component?
+ bool hasEnvironment() const {
+ return getEnvironmentName() != "";
+ }
+
+ /// getEnvironment - Get the parsed environment type of this triple.
+ EnvironmentType getEnvironment() const { return Environment; }
+
+ /// Parse the version number from the OS name component of the
+ /// triple, if present.
+ ///
+ /// For example, "fooos1.2.3" would return (1, 2, 3).
+ ///
+ /// If an entry is not defined, it will be returned as 0.
+ void getEnvironmentVersion(unsigned &Major, unsigned &Minor,
+ unsigned &Micro) const;
+
+ /// getFormat - Get the object format for this triple.
+ ObjectFormatType getObjectFormat() const { return ObjectFormat; }
+
+ /// getOSVersion - Parse the version number from the OS name component of the
+ /// triple, if present.
+ ///
+ /// For example, "fooos1.2.3" would return (1, 2, 3).
+ ///
+ /// If an entry is not defined, it will be returned as 0.
+ void getOSVersion(unsigned &Major, unsigned &Minor, unsigned &Micro) const;
+
+ /// getOSMajorVersion - Return just the major version number, this is
+ /// specialized because it is a common query.
+ unsigned getOSMajorVersion() const {
+ unsigned Maj, Min, Micro;
+ getOSVersion(Maj, Min, Micro);
+ return Maj;
+ }
+
+ /// getMacOSXVersion - Parse the version number as with getOSVersion and then
+ /// translate generic "darwin" versions to the corresponding OS X versions.
+ /// This may also be called with IOS triples but the OS X version number is
+ /// just set to a constant 10.4.0 in that case. Returns true if successful.
+ bool getMacOSXVersion(unsigned &Major, unsigned &Minor,
+ unsigned &Micro) const;
+
+ /// getiOSVersion - Parse the version number as with getOSVersion. This should
+ /// only be called with IOS or generic triples.
+ void getiOSVersion(unsigned &Major, unsigned &Minor,
+ unsigned &Micro) const;
+
+ /// getWatchOSVersion - Parse the version number as with getOSVersion. This
+ /// should only be called with WatchOS or generic triples.
+ void getWatchOSVersion(unsigned &Major, unsigned &Minor,
+ unsigned &Micro) const;
+
+ /// @}
+ /// @name Direct Component Access
+ /// @{
+
+ const std::string &str() const { return Data; }
+
+ const std::string &getTriple() const { return Data; }
+
+ /// getArchName - Get the architecture (first) component of the
+ /// triple.
+ StringRef getArchName() const;
+
+ /// getVendorName - Get the vendor (second) component of the triple.
+ StringRef getVendorName() const;
+
+ /// getOSName - Get the operating system (third) component of the
+ /// triple.
+ StringRef getOSName() const;
+
+ /// getEnvironmentName - Get the optional environment (fourth)
+ /// component of the triple, or "" if empty.
+ StringRef getEnvironmentName() const;
+
+ /// getOSAndEnvironmentName - Get the operating system and optional
+ /// environment components as a single string (separated by a '-'
+ /// if the environment component is present).
+ StringRef getOSAndEnvironmentName() const;
+
+ /// @}
+ /// @name Convenience Predicates
+ /// @{
+
+ /// Test whether the architecture is 64-bit
+ ///
+ /// Note that this tests for 64-bit pointer width, and nothing else. Note
+ /// that we intentionally expose only three predicates, 64-bit, 32-bit, and
+ /// 16-bit. The inner details of pointer width for particular architectures
+ /// is not summed up in the triple, and so only a coarse grained predicate
+ /// system is provided.
+ bool isArch64Bit() const;
+
+ /// Test whether the architecture is 32-bit
+ ///
+ /// Note that this tests for 32-bit pointer width, and nothing else.
+ bool isArch32Bit() const;
+
+ /// Test whether the architecture is 16-bit
+ ///
+ /// Note that this tests for 16-bit pointer width, and nothing else.
+ bool isArch16Bit() const;
+
+ /// isOSVersionLT - Helper function for doing comparisons against version
+ /// numbers included in the target triple.
+ bool isOSVersionLT(unsigned Major, unsigned Minor = 0,
+ unsigned Micro = 0) const {
+ unsigned LHS[3];
+ getOSVersion(LHS[0], LHS[1], LHS[2]);
+
+ if (LHS[0] != Major)
+ return LHS[0] < Major;
+ if (LHS[1] != Minor)
+ return LHS[1] < Minor;
+ if (LHS[2] != Micro)
+ return LHS[1] < Micro;
+
+ return false;
+ }
+
+ bool isOSVersionLT(const Triple &Other) const {
+ unsigned RHS[3];
+ Other.getOSVersion(RHS[0], RHS[1], RHS[2]);
+ return isOSVersionLT(RHS[0], RHS[1], RHS[2]);
+ }
+
+ /// isMacOSXVersionLT - Comparison function for checking OS X version
+ /// compatibility, which handles supporting skewed version numbering schemes
+ /// used by the "darwin" triples.
+ bool isMacOSXVersionLT(unsigned Major, unsigned Minor = 0,
+ unsigned Micro = 0) const {
+ assert(isMacOSX() && "Not an OS X triple!");
+
+ // If this is OS X, expect a sane version number.
+ if (getOS() == Triple::MacOSX)
+ return isOSVersionLT(Major, Minor, Micro);
+
+ // Otherwise, compare to the "Darwin" number.
+ assert(Major == 10 && "Unexpected major version");
+ return isOSVersionLT(Minor + 4, Micro, 0);
+ }
+
+ /// isMacOSX - Is this a Mac OS X triple. For legacy reasons, we support both
+ /// "darwin" and "osx" as OS X triples.
+ bool isMacOSX() const {
+ return getOS() == Triple::Darwin || getOS() == Triple::MacOSX;
+ }
+
+ /// Is this an iOS triple.
+ /// Note: This identifies tvOS as a variant of iOS. If that ever
+ /// changes, i.e., if the two operating systems diverge or their version
+ /// numbers get out of sync, that will need to be changed.
+ /// watchOS has completely different version numbers so it is not included.
+ bool isiOS() const {
+ return getOS() == Triple::IOS || isTvOS();
+ }
+
+ /// Is this an Apple tvOS triple.
+ bool isTvOS() const {
+ return getOS() == Triple::TvOS;
+ }
+
+ /// Is this an Apple watchOS triple.
+ bool isWatchOS() const {
+ return getOS() == Triple::WatchOS;
+ }
+
+ bool isWatchABI() const {
+ return getSubArch() == Triple::ARMSubArch_v7k;
+ }
+
+ /// isOSDarwin - Is this a "Darwin" OS (OS X, iOS, or watchOS).
+ bool isOSDarwin() const {
+ return isMacOSX() || isiOS() || isWatchOS();
+ }
+
+ bool isSimulatorEnvironment() const {
+ return getEnvironment() == Triple::Simulator;
+ }
+
+ bool isOSNetBSD() const {
+ return getOS() == Triple::NetBSD;
+ }
+
+ bool isOSOpenBSD() const {
+ return getOS() == Triple::OpenBSD;
+ }
+
+ bool isOSFreeBSD() const {
+ return getOS() == Triple::FreeBSD;
+ }
+
+ bool isOSFuchsia() const {
+ return getOS() == Triple::Fuchsia;
+ }
+
+ bool isOSDragonFly() const { return getOS() == Triple::DragonFly; }
+
+ bool isOSSolaris() const {
+ return getOS() == Triple::Solaris;
+ }
+
+ bool isOSIAMCU() const {
+ return getOS() == Triple::ELFIAMCU;
+ }
+
+ bool isOSUnknown() const { return getOS() == Triple::UnknownOS; }
+
+ bool isGNUEnvironment() const {
+ EnvironmentType Env = getEnvironment();
+ return Env == Triple::GNU || Env == Triple::GNUABIN32 ||
+ Env == Triple::GNUABI64 || Env == Triple::GNUEABI ||
+ Env == Triple::GNUEABIHF || Env == Triple::GNUX32;
+ }
+
+ bool isOSContiki() const {
+ return getOS() == Triple::Contiki;
+ }
+
+ /// Tests whether the OS is Haiku.
+ bool isOSHaiku() const {
+ return getOS() == Triple::Haiku;
+ }
+
+ /// Checks if the environment could be MSVC.
+ bool isWindowsMSVCEnvironment() const {
+ return getOS() == Triple::Win32 &&
+ (getEnvironment() == Triple::UnknownEnvironment ||
+ getEnvironment() == Triple::MSVC);
+ }
+
+ /// Checks if the environment is MSVC.
+ bool isKnownWindowsMSVCEnvironment() const {
+ return getOS() == Triple::Win32 && getEnvironment() == Triple::MSVC;
+ }
+
+ bool isWindowsCoreCLREnvironment() const {
+ return getOS() == Triple::Win32 && getEnvironment() == Triple::CoreCLR;
+ }
+
+ bool isWindowsItaniumEnvironment() const {
+ return getOS() == Triple::Win32 && getEnvironment() == Triple::Itanium;
+ }
+
+ bool isWindowsCygwinEnvironment() const {
+ return getOS() == Triple::Win32 && getEnvironment() == Triple::Cygnus;
+ }
+
+ bool isWindowsGNUEnvironment() const {
+ return getOS() == Triple::Win32 && getEnvironment() == Triple::GNU;
+ }
+
+ /// Tests for either Cygwin or MinGW OS
+ bool isOSCygMing() const {
+ return isWindowsCygwinEnvironment() || isWindowsGNUEnvironment();
+ }
+
+ /// Is this a "Windows" OS targeting a "MSVCRT.dll" environment.
+ bool isOSMSVCRT() const {
+ return isWindowsMSVCEnvironment() || isWindowsGNUEnvironment() ||
+ isWindowsItaniumEnvironment();
+ }
+
+ /// Tests whether the OS is Windows.
+ bool isOSWindows() const {
+ return getOS() == Triple::Win32;
+ }
+
+ /// Tests whether the OS is NaCl (Native Client)
+ bool isOSNaCl() const {
+ return getOS() == Triple::NaCl;
+ }
+
+ /// Tests whether the OS is Linux.
+ bool isOSLinux() const {
+ return getOS() == Triple::Linux;
+ }
+
+ /// Tests whether the OS is kFreeBSD.
+ bool isOSKFreeBSD() const {
+ return getOS() == Triple::KFreeBSD;
+ }
+
+ /// Tests whether the OS uses glibc.
+ bool isOSGlibc() const {
+ return (getOS() == Triple::Linux || getOS() == Triple::KFreeBSD) &&
+ !isAndroid();
+ }
+
+ /// Tests whether the OS uses the ELF binary format.
+ bool isOSBinFormatELF() const {
+ return getObjectFormat() == Triple::ELF;
+ }
+
+ /// Tests whether the OS uses the COFF binary format.
+ bool isOSBinFormatCOFF() const {
+ return getObjectFormat() == Triple::COFF;
+ }
+
+ /// Tests whether the environment is MachO.
+ bool isOSBinFormatMachO() const {
+ return getObjectFormat() == Triple::MachO;
+ }
+
+ /// Tests whether the OS uses the Wasm binary format.
+ bool isOSBinFormatWasm() const {
+ return getObjectFormat() == Triple::Wasm;
+ }
+
+ /// Tests whether the target is the PS4 CPU
+ bool isPS4CPU() const {
+ return getArch() == Triple::x86_64 &&
+ getVendor() == Triple::SCEI &&
+ getOS() == Triple::PS4;
+ }
+
+ /// Tests whether the target is the PS4 platform
+ bool isPS4() const {
+ return getVendor() == Triple::SCEI &&
+ getOS() == Triple::PS4;
+ }
+
+ /// Tests whether the target is Android
+ bool isAndroid() const { return getEnvironment() == Triple::Android; }
+
+ bool isAndroidVersionLT(unsigned Major) const {
+ assert(isAndroid() && "Not an Android triple!");
+
+ unsigned Env[3];
+ getEnvironmentVersion(Env[0], Env[1], Env[2]);
+
+ // 64-bit targets did not exist before API level 21 (Lollipop).
+ if (isArch64Bit() && Env[0] < 21)
+ Env[0] = 21;
+
+ return Env[0] < Major;
+ }
+
+ /// Tests whether the environment is musl-libc
+ bool isMusl() const {
+ return getEnvironment() == Triple::Musl ||
+ getEnvironment() == Triple::MuslEABI ||
+ getEnvironment() == Triple::MuslEABIHF;
+ }
+
+ /// Tests whether the target is NVPTX (32- or 64-bit).
+ bool isNVPTX() const {
+ return getArch() == Triple::nvptx || getArch() == Triple::nvptx64;
+ }
+
+ /// Tests whether the target is Thumb (little and big endian).
+ bool isThumb() const {
+ return getArch() == Triple::thumb || getArch() == Triple::thumbeb;
+ }
+
+ /// Tests whether the target is ARM (little and big endian).
+ bool isARM() const {
+ return getArch() == Triple::arm || getArch() == Triple::armeb;
+ }
+
+ /// Tests whether the target is AArch64 (little and big endian).
+ bool isAArch64() const {
+ return getArch() == Triple::aarch64 || getArch() == Triple::aarch64_be;
+ }
+
+ /// Tests whether the target supports comdat
+ bool supportsCOMDAT() const {
+ return !isOSBinFormatMachO();
+ }
+
+ /// Tests whether the target uses emulated TLS as default.
+ bool hasDefaultEmulatedTLS() const {
+ return isAndroid() || isOSOpenBSD() || isWindowsCygwinEnvironment();
+ }
+
+ /// @}
+ /// @name Mutators
+ /// @{
+
+ /// setArch - Set the architecture (first) component of the triple
+ /// to a known type.
+ void setArch(ArchType Kind);
+
+ /// setVendor - Set the vendor (second) component of the triple to a
+ /// known type.
+ void setVendor(VendorType Kind);
+
+ /// setOS - Set the operating system (third) component of the triple
+ /// to a known type.
+ void setOS(OSType Kind);
+
+ /// setEnvironment - Set the environment (fourth) component of the triple
+ /// to a known type.
+ void setEnvironment(EnvironmentType Kind);
+
+ /// setObjectFormat - Set the object file format
+ void setObjectFormat(ObjectFormatType Kind);
+
+ /// setTriple - Set all components to the new triple \p Str.
+ void setTriple(const Twine &Str);
+
+ /// setArchName - Set the architecture (first) component of the
+ /// triple by name.
+ void setArchName(StringRef Str);
+
+ /// setVendorName - Set the vendor (second) component of the triple
+ /// by name.
+ void setVendorName(StringRef Str);
+
+ /// setOSName - Set the operating system (third) component of the
+ /// triple by name.
+ void setOSName(StringRef Str);
+
+ /// setEnvironmentName - Set the optional environment (fourth)
+ /// component of the triple by name.
+ void setEnvironmentName(StringRef Str);
+
+ /// setOSAndEnvironmentName - Set the operating system and optional
+ /// environment components with a single string.
+ void setOSAndEnvironmentName(StringRef Str);
+
+ /// @}
+ /// @name Helpers to build variants of a particular triple.
+ /// @{
+
+ /// Form a triple with a 32-bit variant of the current architecture.
+ ///
+ /// This can be used to move across "families" of architectures where useful.
+ ///
+ /// \returns A new triple with a 32-bit architecture or an unknown
+ /// architecture if no such variant can be found.
+ llvm::Triple get32BitArchVariant() const;
+
+ /// Form a triple with a 64-bit variant of the current architecture.
+ ///
+ /// This can be used to move across "families" of architectures where useful.
+ ///
+ /// \returns A new triple with a 64-bit architecture or an unknown
+ /// architecture if no such variant can be found.
+ llvm::Triple get64BitArchVariant() const;
+
+ /// Form a triple with a big endian variant of the current architecture.
+ ///
+ /// This can be used to move across "families" of architectures where useful.
+ ///
+ /// \returns A new triple with a big endian architecture or an unknown
+ /// architecture if no such variant can be found.
+ llvm::Triple getBigEndianArchVariant() const;
+
+ /// Form a triple with a little endian variant of the current architecture.
+ ///
+ /// This can be used to move across "families" of architectures where useful.
+ ///
+ /// \returns A new triple with a little endian architecture or an unknown
+ /// architecture if no such variant can be found.
+ llvm::Triple getLittleEndianArchVariant() const;
+
+ /// Get the (LLVM) name of the minimum ARM CPU for the arch we are targeting.
+ ///
+ /// \param Arch the architecture name (e.g., "armv7s"). If it is an empty
+ /// string then the triple's arch name is used.
+ StringRef getARMCPUForArch(StringRef Arch = StringRef()) const;
+
+ /// Tests whether the target triple is little endian.
+ ///
+ /// \returns true if the triple is little endian, false otherwise.
+ bool isLittleEndian() const;
+
+ /// Test whether target triples are compatible.
+ bool isCompatibleWith(const Triple &Other) const;
+
+ /// Merge target triples.
+ std::string merge(const Triple &Other) const;
+
+ /// @}
+ /// @name Static helpers for IDs.
+ /// @{
+
+ /// getArchTypeName - Get the canonical name for the \p Kind architecture.
+ static StringRef getArchTypeName(ArchType Kind);
+
+ /// getArchTypePrefix - Get the "prefix" canonical name for the \p Kind
+ /// architecture. This is the prefix used by the architecture specific
+ /// builtins, and is suitable for passing to \see
+ /// Intrinsic::getIntrinsicForGCCBuiltin().
+ ///
+ /// \return - The architecture prefix, or 0 if none is defined.
+ static StringRef getArchTypePrefix(ArchType Kind);
+
+ /// getVendorTypeName - Get the canonical name for the \p Kind vendor.
+ static StringRef getVendorTypeName(VendorType Kind);
+
+ /// getOSTypeName - Get the canonical name for the \p Kind operating system.
+ static StringRef getOSTypeName(OSType Kind);
+
+ /// getEnvironmentTypeName - Get the canonical name for the \p Kind
+ /// environment.
+ static StringRef getEnvironmentTypeName(EnvironmentType Kind);
+
+ /// @}
+ /// @name Static helpers for converting alternate architecture names.
+ /// @{
+
+ /// getArchTypeForLLVMName - The canonical type for the given LLVM
+ /// architecture name (e.g., "x86").
+ static ArchType getArchTypeForLLVMName(StringRef Str);
+
+ /// @}
+};
+
+} // End llvm namespace
+
+
+#endif