llvm-6502/include/llvm/ADT/Triple.h
2012-12-07 00:01:53 +00:00

441 lines
13 KiB
C++

//===-- 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 mips
#undef sparc
namespace llvm {
/// Triple - Helper class for working with target triples.
///
/// Target triples 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
/// 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.
///
/// 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 triples look like in
/// practice.
class Triple {
public:
enum ArchType {
UnknownArch,
arm, // ARM; arm, armv.*, xscale
hexagon, // Hexagon: hexagon
mips, // MIPS: mips, mipsallegrex
mipsel, // MIPSEL: mipsel, mipsallegrexel
mips64, // MIPS64: mips64
mips64el,// MIPS64EL: mips64el
msp430, // MSP430: msp430
ppc, // PPC: powerpc
ppc64, // PPC64: powerpc64, ppu
r600, // R600: AMD GPUs HD2XXX - HD6XXX
sparc, // Sparc: sparc
sparcv9, // Sparcv9: Sparcv9
tce, // TCE (http://tce.cs.tut.fi/): tce
thumb, // Thumb: thumb, thumbv.*
x86, // X86: i[3-9]86
x86_64, // X86-64: amd64, x86_64
xcore, // XCore: xcore
mblaze, // MBlaze: mblaze
nvptx, // NVPTX: 32-bit
nvptx64, // NVPTX: 64-bit
le32, // le32: generic little-endian 32-bit CPU (PNaCl / Emscripten)
amdil, // amdil: amd IL
spir, // SPIR: standard portable IR for OpenCL 32-bit version
spir64 // SPIR: standard portable IR for OpenCL 64-bit version
};
enum VendorType {
UnknownVendor,
Apple,
PC,
SCEI,
BGP,
BGQ,
Freescale,
IBM
};
enum OSType {
UnknownOS,
AuroraUX,
Cygwin,
Darwin,
DragonFly,
FreeBSD,
IOS,
KFreeBSD,
Linux,
Lv2, // PS3
MacOSX,
MinGW32, // i*86-pc-mingw32, *-w64-mingw32
NetBSD,
OpenBSD,
Solaris,
Win32,
Haiku,
Minix,
RTEMS,
NaCl, // Native Client
CNK, // BG/P Compute-Node Kernel
Bitrig,
AIX
};
enum EnvironmentType {
UnknownEnvironment,
GNU,
GNUEABI,
GNUEABIHF,
EABI,
MachO,
Android,
ELF
};
private:
std::string Data;
/// The parsed arch type.
ArchType Arch;
/// The parsed vendor type.
VendorType Vendor;
/// The parsed OS type.
OSType OS;
/// The parsed Environment type.
EnvironmentType Environment;
public:
/// @name Constructors
/// @{
/// \brief Default constructor is the same as an empty string and leaves all
/// triple fields unknown.
Triple() : Data(), Arch(), Vendor(), OS(), Environment() {}
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);
/// @}
/// @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);
/// @}
/// @name Typed Component Access
/// @{
/// getArch - Get the parsed architecture type of this triple.
ArchType getArch() const { return Arch; }
/// 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; }
/// 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 triples.
void getiOSVersion(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
/// @{
/// \brief 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;
/// \brief Test whether the architecture is 32-bit
///
/// Note that this tests for 32-bit pointer width, and nothing else.
bool isArch32Bit() const;
/// \brief 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;
}
/// isMacOSXVersionLT - Comparison function for checking OS X version
/// compatibility, which handles supporting skewed version numbering schemes
/// used by the "darwin" triples.
unsigned 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;
}
/// isOSDarwin - Is this a "Darwin" OS (OS X or iOS).
bool isOSDarwin() const {
return isMacOSX() || getOS() == Triple::IOS;
}
/// \brief Tests for either Cygwin or MinGW OS
bool isOSCygMing() const {
return getOS() == Triple::Cygwin || getOS() == Triple::MinGW32;
}
/// isOSWindows - Is this a "Windows" OS.
bool isOSWindows() const {
return getOS() == Triple::Win32 || isOSCygMing();
}
/// \brief Tests whether the OS is NaCl (Native Client)
bool isOSNaCl() const {
return getOS() == Triple::NaCl;
}
/// \brief Tests whether the OS uses the ELF binary format.
bool isOSBinFormatELF() const {
return !isOSDarwin() && !isOSWindows();
}
/// \brief Tests whether the OS uses the COFF binary format.
bool isOSBinFormatCOFF() const {
return isOSWindows();
}
/// \brief Tests whether the environment is MachO.
// FIXME: Should this be an OSBinFormat predicate?
bool isEnvironmentMachO() const {
return getEnvironment() == Triple::MachO || isOSDarwin();
}
/// @}
/// @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);
/// 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);
/// getArchNameForAssembler - Get an architecture name that is understood by
/// the target assembler.
const char *getArchNameForAssembler();
/// @}
/// @name Helpers to build variants of a particular triple.
/// @{
/// \brief 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;
/// \brief 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;
/// @}
/// @name Static helpers for IDs.
/// @{
/// getArchTypeName - Get the canonical name for the \p Kind architecture.
static const char *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 const char *getArchTypePrefix(ArchType Kind);
/// getVendorTypeName - Get the canonical name for the \p Kind vendor.
static const char *getVendorTypeName(VendorType Kind);
/// getOSTypeName - Get the canonical name for the \p Kind operating system.
static const char *getOSTypeName(OSType Kind);
/// getEnvironmentTypeName - Get the canonical name for the \p Kind
/// environment.
static const char *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