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197 lines
5.0 KiB
C
197 lines
5.0 KiB
C
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//===-- 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 <string>
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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 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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/// See autoconf/config.guess for a glimpse into what they look like
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/// in 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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x86, // i?86
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ppc, // powerpc
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ppc64, // powerpc64
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x86_64, // amd64, x86_64
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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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Darwin,
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FreeBSD,
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Linux
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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(const char *Str) : Data(Str), Arch(InvalidArch) {}
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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 &getTriple() const { return Data; }
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// FIXME: Invent a lightweight string representation for these to
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// use.
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/// getArchName - Get the architecture (first) component of the
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/// triple.
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std::string getArchName() const;
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/// getVendorName - Get the vendor (second) component of the triple.
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std::string getVendorName() const;
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/// getOSName - Get the operating system (third) component of the
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/// triple.
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std::string 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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std::string 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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std::string getOSAndEnvironmentName() const;
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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 std::string &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(const std::string &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(const std::string &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(const std::string &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(const std::string &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(const std::string &Str);
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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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/// 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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};
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} // End llvm namespace
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#endif
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