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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 <string>
namespace llvm {
/// Triple - Helper class for working with target triples.
///
/// Target triples are strings in the format of:
/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM
/// or
/// ARCHITECTURE-VENDOR-OPERATING_SYSTEM-ENVIRONMENT
///
/// This class is used for clients which want to support arbitrary
/// target triples, but also want to implement certain special
/// behavior for particular targets. This class isolates the mapping
/// from the components of the target triple to well known IDs.
///
/// See autoconf/config.guess for a glimpse into what they look like
/// in practice.
class Triple {
public:
enum ArchType {
UnknownArch,
x86, // i?86
ppc, // powerpc
ppc64, // powerpc64
x86_64, // amd64, x86_64
InvalidArch
};
enum VendorType {
UnknownVendor,
Apple,
PC
};
enum OSType {
UnknownOS,
AuroraUX,
Darwin,
DragonFly,
FreeBSD,
Linux
};
private:
std::string Data;
/// The parsed arch type (or InvalidArch if uninitialized).
mutable ArchType Arch;
/// The parsed vendor type.
mutable VendorType Vendor;
/// The parsed OS type.
mutable OSType OS;
bool isInitialized() const { return Arch != InvalidArch; }
void Parse() const;
public:
/// @name Constructors
/// @{
Triple() : Data(""), Arch(InvalidArch) {}
explicit Triple(const char *Str) : Data(Str), Arch(InvalidArch) {}
explicit Triple(const char *ArchStr, const char *VendorStr, const char *OSStr)
: Data(ArchStr), Arch(InvalidArch) {
Data += '-';
Data += VendorStr;
Data += '-';
Data += OSStr;
}
/// @}
/// @name Typed Component Access
/// @{
/// getArch - Get the parsed architecture type of this triple.
ArchType getArch() const {
if (!isInitialized()) Parse();
return Arch;
}
/// getVendor - Get the parsed vendor type of this triple.
VendorType getVendor() const {
if (!isInitialized()) Parse();
return Vendor;
}
/// getOS - Get the parsed operating system type of this triple.
OSType getOS() const {
if (!isInitialized()) Parse();
return OS;
}
/// hasEnvironment - Does this triple have the optional environment
/// (fourth) component?
bool hasEnvironment() const {
return getEnvironmentName() != "";
}
/// @}
/// @name Direct Component Access
/// @{
const std::string &getTriple() const { return Data; }
// FIXME: Invent a lightweight string representation for these to
// use.
/// getArchName - Get the architecture (first) component of the
/// triple.
std::string getArchName() const;
/// getVendorName - Get the vendor (second) component of the triple.
std::string getVendorName() const;
/// getOSName - Get the operating system (third) component of the
/// triple.
std::string getOSName() const;
/// getEnvironmentName - Get the optional environment (fourth)
/// component of the triple, or "" if empty.
std::string getEnvironmentName() const;
/// getOSAndEnvironmentName - Get the operating system and optional
/// environment components as a single string (separated by a '-'
/// if the environment component is present).
std::string getOSAndEnvironmentName() const;
/// @}
/// @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);
/// setTriple - Set all components to the new triple \arg Str.
void setTriple(const std::string &Str);
/// setArchName - Set the architecture (first) component of the
/// triple by name.
void setArchName(const std::string &Str);
/// setVendorName - Set the vendor (second) component of the triple
/// by name.
void setVendorName(const std::string &Str);
/// setOSName - Set the operating system (third) component of the
/// triple by name.
void setOSName(const std::string &Str);
/// setEnvironmentName - Set the optional environment (fourth)
/// component of the triple by name.
void setEnvironmentName(const std::string &Str);
/// setOSAndEnvironmentName - Set the operating system and optional
/// environment components with a single string.
void setOSAndEnvironmentName(const std::string &Str);
/// @}
/// @name Static helpers for IDs.
/// @{
/// getArchTypeName - Get the canonical name for the \arg Kind
/// architecture.
static const char *getArchTypeName(ArchType Kind);
/// getVendorTypeName - Get the canonical name for the \arg Kind
/// vendor.
static const char *getVendorTypeName(VendorType Kind);
/// getOSTypeName - Get the canonical name for the \arg Kind vendor.
static const char *getOSTypeName(OSType Kind);
/// @}
};
} // End llvm namespace
#endif
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