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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143164 91177308-0d34-0410-b5e6-96231b3b80d8
382 lines
11 KiB
C++
382 lines
11 KiB
C++
//===-- llvm/ADT/Triple.h - Target triple helper class ----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ADT_TRIPLE_H
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#define LLVM_ADT_TRIPLE_H
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#include "llvm/ADT/Twine.h"
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// Some system headers or GCC predefined macros conflict with identifiers in
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// this file. Undefine them here.
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#undef mips
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#undef sparc
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namespace llvm {
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/// Triple - Helper class for working with target triples.
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///
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/// Target triples are strings in the canonical form:
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/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM
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/// or
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/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM-ENVIRONMENT
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///
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/// This class is used for clients which want to support arbitrary
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/// target triples, but also want to implement certain special
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/// behavior for particular targets. This class isolates the mapping
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/// from the components of the target triple to well known IDs.
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///
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/// At its core the Triple class is designed to be a wrapper for a triple
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/// string; the constructor does not change or normalize the triple string.
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/// Clients that need to handle the non-canonical triples that users often
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/// specify should use the normalize method.
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///
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/// See autoconf/config.guess for a glimpse into what triples look like in
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/// practice.
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class Triple {
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public:
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enum ArchType {
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UnknownArch,
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arm, // ARM; arm, armv.*, xscale
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cellspu, // CellSPU: spu, cellspu
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mips, // MIPS: mips, mipsallegrex
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mipsel, // MIPSEL: mipsel, mipsallegrexel, psp
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mips64, // MIPS64: mips64
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mips64el,// MIPS64EL: mips64el
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msp430, // MSP430: msp430
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ppc, // PPC: powerpc
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ppc64, // PPC64: powerpc64, ppu
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sparc, // Sparc: sparc
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sparcv9, // Sparcv9: Sparcv9
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tce, // TCE (http://tce.cs.tut.fi/): tce
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thumb, // Thumb: thumb, thumbv.*
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x86, // X86: i[3-9]86
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x86_64, // X86-64: amd64, x86_64
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xcore, // XCore: xcore
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mblaze, // MBlaze: mblaze
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ptx32, // PTX: ptx (32-bit)
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ptx64, // PTX: ptx (64-bit)
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le32, // le32: generic little-endian 32-bit CPU (PNaCl / Emscripten)
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amdil, // amdil: amd IL
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InvalidArch
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};
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enum VendorType {
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UnknownVendor,
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Apple,
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PC,
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SCEI
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};
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enum OSType {
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UnknownOS,
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AuroraUX,
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Cygwin,
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Darwin,
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DragonFly,
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FreeBSD,
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IOS,
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KFreeBSD,
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Linux,
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Lv2, // PS3
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MacOSX,
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MinGW32, // i*86-pc-mingw32, *-w64-mingw32
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NetBSD,
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OpenBSD,
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Psp,
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Solaris,
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Win32,
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Haiku,
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Minix,
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RTEMS,
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NativeClient
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};
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enum EnvironmentType {
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UnknownEnvironment,
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GNU,
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GNUEABI,
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EABI,
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MachO
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};
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private:
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std::string Data;
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/// The parsed arch type (or InvalidArch if uninitialized).
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mutable ArchType Arch;
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/// The parsed vendor type.
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mutable VendorType Vendor;
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/// The parsed OS type.
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mutable OSType OS;
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/// The parsed Environment type.
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mutable EnvironmentType Environment;
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bool isInitialized() const { return Arch != InvalidArch; }
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static ArchType ParseArch(StringRef ArchName);
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static VendorType ParseVendor(StringRef VendorName);
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static OSType ParseOS(StringRef OSName);
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static EnvironmentType ParseEnvironment(StringRef EnvironmentName);
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void Parse() const;
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public:
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/// @name Constructors
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/// @{
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Triple() : Data(), Arch(InvalidArch) {}
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explicit Triple(const Twine &Str) : Data(Str.str()), Arch(InvalidArch) {}
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Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr)
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: Data((ArchStr + Twine('-') + VendorStr + Twine('-') + OSStr).str()),
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Arch(InvalidArch) {
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}
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Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr,
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const Twine &EnvironmentStr)
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: Data((ArchStr + Twine('-') + VendorStr + Twine('-') + OSStr + Twine('-') +
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EnvironmentStr).str()), Arch(InvalidArch) {
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}
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/// @}
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/// @name Normalization
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/// @{
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/// normalize - Turn an arbitrary machine specification into the canonical
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/// triple form (or something sensible that the Triple class understands if
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/// nothing better can reasonably be done). In particular, it handles the
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/// common case in which otherwise valid components are in the wrong order.
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static std::string normalize(StringRef Str);
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/// @}
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/// @name Typed Component Access
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/// @{
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/// getArch - Get the parsed architecture type of this triple.
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ArchType getArch() const {
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if (!isInitialized()) Parse();
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return Arch;
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}
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/// getVendor - Get the parsed vendor type of this triple.
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VendorType getVendor() const {
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if (!isInitialized()) Parse();
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return Vendor;
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}
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/// getOS - Get the parsed operating system type of this triple.
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OSType getOS() const {
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if (!isInitialized()) Parse();
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return OS;
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}
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/// hasEnvironment - Does this triple have the optional environment
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/// (fourth) component?
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bool hasEnvironment() const {
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return getEnvironmentName() != "";
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}
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/// getEnvironment - Get the parsed environment type of this triple.
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EnvironmentType getEnvironment() const {
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if (!isInitialized()) Parse();
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return Environment;
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}
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/// @}
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/// @name Direct Component Access
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/// @{
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const std::string &str() const { return Data; }
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const std::string &getTriple() const { return Data; }
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/// getArchName - Get the architecture (first) component of the
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/// triple.
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StringRef getArchName() const;
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/// getVendorName - Get the vendor (second) component of the triple.
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StringRef getVendorName() const;
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/// getOSName - Get the operating system (third) component of the
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/// triple.
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StringRef getOSName() const;
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/// getEnvironmentName - Get the optional environment (fourth)
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/// component of the triple, or "" if empty.
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StringRef getEnvironmentName() const;
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/// getOSAndEnvironmentName - Get the operating system and optional
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/// environment components as a single string (separated by a '-'
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/// if the environment component is present).
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StringRef getOSAndEnvironmentName() const;
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/// getOSVersion - Parse the version number from the OS name component of the
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/// triple, if present.
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///
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/// For example, "fooos1.2.3" would return (1, 2, 3).
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///
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/// If an entry is not defined, it will be returned as 0.
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void getOSVersion(unsigned &Major, unsigned &Minor, unsigned &Micro) const;
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/// getOSMajorVersion - Return just the major version number, this is
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/// specialized because it is a common query.
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unsigned getOSMajorVersion() const {
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unsigned Maj, Min, Micro;
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getOSVersion(Maj, Min, Micro);
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return Maj;
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}
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/// isOSVersionLT - Helper function for doing comparisons against version
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/// numbers included in the target triple.
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bool isOSVersionLT(unsigned Major, unsigned Minor = 0,
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unsigned Micro = 0) const {
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unsigned LHS[3];
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getOSVersion(LHS[0], LHS[1], LHS[2]);
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if (LHS[0] != Major)
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return LHS[0] < Major;
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if (LHS[1] != Minor)
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return LHS[1] < Minor;
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if (LHS[2] != Micro)
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return LHS[1] < Micro;
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return false;
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}
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/// isMacOSX - Is this a Mac OS X triple. For legacy reasons, we support both
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/// "darwin" and "osx" as OS X triples.
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bool isMacOSX() const {
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return getOS() == Triple::Darwin || getOS() == Triple::MacOSX;
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}
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/// isOSDarwin - Is this a "Darwin" OS (OS X or iOS).
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bool isOSDarwin() const {
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return isMacOSX() || getOS() == Triple::IOS;
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}
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/// isOSWindows - Is this a "Windows" OS.
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bool isOSWindows() const {
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return getOS() == Triple::Win32 || getOS() == Triple::Cygwin ||
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getOS() == Triple::MinGW32;
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}
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/// isMacOSXVersionLT - Comparison function for checking OS X version
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/// compatibility, which handles supporting skewed version numbering schemes
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/// used by the "darwin" triples.
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unsigned isMacOSXVersionLT(unsigned Major, unsigned Minor = 0,
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unsigned Micro = 0) const {
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assert(isMacOSX() && "Not an OS X triple!");
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// If this is OS X, expect a sane version number.
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if (getOS() == Triple::MacOSX)
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return isOSVersionLT(Major, Minor, Micro);
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// Otherwise, compare to the "Darwin" number.
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assert(Major == 10 && "Unexpected major version");
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return isOSVersionLT(Minor + 4, Micro, 0);
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}
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/// @}
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/// @name Mutators
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/// @{
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/// setArch - Set the architecture (first) component of the triple
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/// to a known type.
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void setArch(ArchType Kind);
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/// setVendor - Set the vendor (second) component of the triple to a
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/// known type.
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void setVendor(VendorType Kind);
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/// setOS - Set the operating system (third) component of the triple
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/// to a known type.
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void setOS(OSType Kind);
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/// setEnvironment - Set the environment (fourth) component of the triple
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/// to a known type.
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void setEnvironment(EnvironmentType Kind);
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/// setTriple - Set all components to the new triple \arg Str.
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void setTriple(const Twine &Str);
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/// setArchName - Set the architecture (first) component of the
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/// triple by name.
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void setArchName(StringRef Str);
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/// setVendorName - Set the vendor (second) component of the triple
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/// by name.
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void setVendorName(StringRef Str);
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/// setOSName - Set the operating system (third) component of the
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/// triple by name.
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void setOSName(StringRef Str);
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/// setEnvironmentName - Set the optional environment (fourth)
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/// component of the triple by name.
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void setEnvironmentName(StringRef Str);
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/// setOSAndEnvironmentName - Set the operating system and optional
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/// environment components with a single string.
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void setOSAndEnvironmentName(StringRef Str);
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/// getArchNameForAssembler - Get an architecture name that is understood by
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/// the target assembler.
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const char *getArchNameForAssembler();
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/// @}
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/// @name Static helpers for IDs.
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/// @{
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/// getArchTypeName - Get the canonical name for the \arg Kind
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/// architecture.
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static const char *getArchTypeName(ArchType Kind);
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/// getArchTypePrefix - Get the "prefix" canonical name for the \arg Kind
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/// architecture. This is the prefix used by the architecture specific
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/// builtins, and is suitable for passing to \see
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/// Intrinsic::getIntrinsicForGCCBuiltin().
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///
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/// \return - The architecture prefix, or 0 if none is defined.
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static const char *getArchTypePrefix(ArchType Kind);
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/// getVendorTypeName - Get the canonical name for the \arg Kind
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/// vendor.
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static const char *getVendorTypeName(VendorType Kind);
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/// getOSTypeName - Get the canonical name for the \arg Kind operating
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/// system.
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static const char *getOSTypeName(OSType Kind);
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/// getEnvironmentTypeName - Get the canonical name for the \arg Kind
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/// environment.
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static const char *getEnvironmentTypeName(EnvironmentType Kind);
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/// @}
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/// @name Static helpers for converting alternate architecture names.
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/// @{
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/// getArchTypeForLLVMName - The canonical type for the given LLVM
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/// architecture name (e.g., "x86").
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static ArchType getArchTypeForLLVMName(StringRef Str);
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/// getArchTypeForDarwinArchName - Get the architecture type for a "Darwin"
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/// architecture name, for example as accepted by "gcc -arch" (see also
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/// arch(3)).
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static ArchType getArchTypeForDarwinArchName(StringRef Str);
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/// @}
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};
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} // End llvm namespace
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#endif
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