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293 lines
8.4 KiB
C++
293 lines
8.4 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/StringRef.h"
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#include <string>
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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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class StringRef;
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class Twine;
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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 format of:
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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; it does not normally change or normalize the triple string, instead
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/// it provides additional APIs to parse normalized parts out of the triple.
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///
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/// One curiosity this implies is that for some odd triples the results of,
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/// e.g., getOSName() can be very different from the result of getOS(). For
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/// example, for 'i386-mingw32', getOS() will return MinGW32, but since
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/// getOSName() is purely based on the string structure that will return the
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/// empty string.
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///
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/// Clients should generally avoid using getOSName() and related APIs unless
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/// they are familiar with the triple format (this is particularly true when
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/// rewriting a triple).
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///
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/// See autoconf/config.guess for a glimpse into what they 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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alpha, // Alpha: alpha
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arm, // ARM; arm, armv.*, xscale
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bfin, // Blackfin: bfin
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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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msp430, // MSP430: msp430
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pic16, // PIC16: pic16
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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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systemz, // SystemZ: s390x
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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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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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};
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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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Linux,
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Lv2, // PS3
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MinGW32,
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MinGW64,
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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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};
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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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bool isInitialized() const { return Arch != InvalidArch; }
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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(StringRef Str) : Data(Str), Arch(InvalidArch) {}
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explicit Triple(StringRef ArchStr, StringRef VendorStr, StringRef OSStr)
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: Data(ArchStr), Arch(InvalidArch) {
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Data += '-';
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Data += VendorStr;
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Data += '-';
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Data += OSStr;
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}
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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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/// @}
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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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/// getDarwinNumber - Parse the 'darwin number' out of the specific target
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/// triple. For example, if we have darwin8.5 return 8,5,0. If any entry is
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/// not defined, return 0's. This requires that the triple have an OSType of
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/// darwin before it is called.
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void getDarwinNumber(unsigned &Maj, unsigned &Min, unsigned &Revision) const;
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/// getDarwinMajorNumber - Return just the major version number, this is
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/// specialized because it is a common query.
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unsigned getDarwinMajorNumber() const {
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unsigned Maj, Min, Rev;
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getDarwinNumber(Maj, Min, Rev);
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return Maj;
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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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/// 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 vendor.
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static const char *getOSTypeName(OSType 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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