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| Current File : //usr/src/contrib/llvm/lib/Support/Triple.cpp |
//===--- Triple.cpp - Target triple helper class --------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/Triple.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/ErrorHandling.h"
#include <cstring>
using namespace llvm;
const char *Triple::getArchTypeName(ArchType Kind) {
switch (Kind) {
case UnknownArch: return "unknown";
case arm: return "arm";
case cellspu: return "cellspu";
case hexagon: return "hexagon";
case mips: return "mips";
case mipsel: return "mipsel";
case mips64: return "mips64";
case mips64el:return "mips64el";
case msp430: return "msp430";
case ppc64: return "powerpc64";
case ppc: return "powerpc";
case r600: return "r600";
case sparc: return "sparc";
case sparcv9: return "sparcv9";
case tce: return "tce";
case thumb: return "thumb";
case x86: return "i386";
case x86_64: return "x86_64";
case xcore: return "xcore";
case mblaze: return "mblaze";
case ptx32: return "ptx32";
case ptx64: return "ptx64";
case le32: return "le32";
case amdil: return "amdil";
}
llvm_unreachable("Invalid ArchType!");
}
const char *Triple::getArchTypePrefix(ArchType Kind) {
switch (Kind) {
default:
return 0;
case arm:
case thumb: return "arm";
case cellspu: return "spu";
case ppc64:
case ppc: return "ppc";
case mblaze: return "mblaze";
case hexagon: return "hexagon";
case r600: return "r600";
case sparcv9:
case sparc: return "sparc";
case x86:
case x86_64: return "x86";
case xcore: return "xcore";
case ptx32: return "ptx";
case ptx64: return "ptx";
case le32: return "le32";
case amdil: return "amdil";
}
}
const char *Triple::getVendorTypeName(VendorType Kind) {
switch (Kind) {
case UnknownVendor: return "unknown";
case Apple: return "apple";
case PC: return "pc";
case SCEI: return "scei";
case BGP: return "bgp";
case BGQ: return "bgq";
}
llvm_unreachable("Invalid VendorType!");
}
const char *Triple::getOSTypeName(OSType Kind) {
switch (Kind) {
case UnknownOS: return "unknown";
case AuroraUX: return "auroraux";
case Cygwin: return "cygwin";
case Darwin: return "darwin";
case DragonFly: return "dragonfly";
case FreeBSD: return "freebsd";
case IOS: return "ios";
case KFreeBSD: return "kfreebsd";
case Linux: return "linux";
case Lv2: return "lv2";
case MacOSX: return "macosx";
case MinGW32: return "mingw32";
case NetBSD: return "netbsd";
case OpenBSD: return "openbsd";
case Solaris: return "solaris";
case Win32: return "win32";
case Haiku: return "haiku";
case Minix: return "minix";
case RTEMS: return "rtems";
case NativeClient: return "nacl";
case CNK: return "cnk";
}
llvm_unreachable("Invalid OSType");
}
const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
switch (Kind) {
case UnknownEnvironment: return "unknown";
case GNU: return "gnu";
case GNUEABIHF: return "gnueabihf";
case GNUEABI: return "gnueabi";
case EABI: return "eabi";
case MachO: return "macho";
case ANDROIDEABI: return "androideabi";
}
llvm_unreachable("Invalid EnvironmentType!");
}
Triple::ArchType Triple::getArchTypeForLLVMName(StringRef Name) {
return StringSwitch<Triple::ArchType>(Name)
.Case("arm", arm)
.Case("cellspu", cellspu)
.Case("mips", mips)
.Case("mipsel", mipsel)
.Case("mips64", mips64)
.Case("mips64el", mips64el)
.Case("msp430", msp430)
.Case("ppc64", ppc64)
.Case("ppc32", ppc)
.Case("ppc", ppc)
.Case("mblaze", mblaze)
.Case("r600", r600)
.Case("hexagon", hexagon)
.Case("sparc", sparc)
.Case("sparcv9", sparcv9)
.Case("tce", tce)
.Case("thumb", thumb)
.Case("x86", x86)
.Case("x86-64", x86_64)
.Case("xcore", xcore)
.Case("ptx32", ptx32)
.Case("ptx64", ptx64)
.Case("le32", le32)
.Case("amdil", amdil)
.Default(UnknownArch);
}
Triple::ArchType Triple::getArchTypeForDarwinArchName(StringRef Str) {
// See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for
// archs which Darwin doesn't use.
// The matching this routine does is fairly pointless, since it is neither the
// complete architecture list, nor a reasonable subset. The problem is that
// historically the driver driver accepts this and also ties its -march=
// handling to the architecture name, so we need to be careful before removing
// support for it.
// This code must be kept in sync with Clang's Darwin specific argument
// translation.
return StringSwitch<ArchType>(Str)
.Cases("ppc", "ppc601", "ppc603", "ppc604", "ppc604e", Triple::ppc)
.Cases("ppc750", "ppc7400", "ppc7450", "ppc970", Triple::ppc)
.Case("ppc64", Triple::ppc64)
.Cases("i386", "i486", "i486SX", "i586", "i686", Triple::x86)
.Cases("pentium", "pentpro", "pentIIm3", "pentIIm5", "pentium4",
Triple::x86)
.Case("x86_64", Triple::x86_64)
// This is derived from the driver driver.
.Cases("arm", "armv4t", "armv5", "armv6", Triple::arm)
.Cases("armv7", "armv7f", "armv7k", "armv7s", "xscale", Triple::arm)
.Case("r600", Triple::r600)
.Case("ptx32", Triple::ptx32)
.Case("ptx64", Triple::ptx64)
.Case("amdil", Triple::amdil)
.Default(Triple::UnknownArch);
}
// Returns architecture name that is understood by the target assembler.
const char *Triple::getArchNameForAssembler() {
if (!isOSDarwin() && getVendor() != Triple::Apple)
return NULL;
return StringSwitch<const char*>(getArchName())
.Case("i386", "i386")
.Case("x86_64", "x86_64")
.Case("powerpc", "ppc")
.Case("powerpc64", "ppc64")
.Cases("mblaze", "microblaze", "mblaze")
.Case("arm", "arm")
.Cases("armv4t", "thumbv4t", "armv4t")
.Cases("armv5", "armv5e", "thumbv5", "thumbv5e", "armv5")
.Cases("armv6", "thumbv6", "armv6")
.Cases("armv7", "thumbv7", "armv7")
.Case("r600", "r600")
.Case("ptx32", "ptx32")
.Case("ptx64", "ptx64")
.Case("le32", "le32")
.Case("amdil", "amdil")
.Default(NULL);
}
static Triple::ArchType parseArch(StringRef ArchName) {
return StringSwitch<Triple::ArchType>(ArchName)
.Cases("i386", "i486", "i586", "i686", Triple::x86)
// FIXME: Do we need to support these?
.Cases("i786", "i886", "i986", Triple::x86)
.Cases("amd64", "x86_64", Triple::x86_64)
.Case("powerpc", Triple::ppc)
.Cases("powerpc64", "ppu", Triple::ppc64)
.Case("mblaze", Triple::mblaze)
.Cases("arm", "xscale", Triple::arm)
// FIXME: It would be good to replace these with explicit names for all the
// various suffixes supported.
.StartsWith("armv", Triple::arm)
.Case("thumb", Triple::thumb)
.StartsWith("thumbv", Triple::thumb)
.Cases("spu", "cellspu", Triple::cellspu)
.Case("msp430", Triple::msp430)
.Cases("mips", "mipseb", "mipsallegrex", Triple::mips)
.Cases("mipsel", "mipsallegrexel", Triple::mipsel)
.Cases("mips64", "mips64eb", Triple::mips64)
.Case("mips64el", Triple::mips64el)
.Case("r600", Triple::r600)
.Case("hexagon", Triple::hexagon)
.Case("sparc", Triple::sparc)
.Case("sparcv9", Triple::sparcv9)
.Case("tce", Triple::tce)
.Case("xcore", Triple::xcore)
.Case("ptx32", Triple::ptx32)
.Case("ptx64", Triple::ptx64)
.Case("le32", Triple::le32)
.Case("amdil", Triple::amdil)
.Default(Triple::UnknownArch);
}
static Triple::VendorType parseVendor(StringRef VendorName) {
return StringSwitch<Triple::VendorType>(VendorName)
.Case("apple", Triple::Apple)
.Case("pc", Triple::PC)
.Case("scei", Triple::SCEI)
.Case("bgp", Triple::BGP)
.Case("bgq", Triple::BGQ)
.Default(Triple::UnknownVendor);
}
static Triple::OSType parseOS(StringRef OSName) {
return StringSwitch<Triple::OSType>(OSName)
.StartsWith("auroraux", Triple::AuroraUX)
.StartsWith("cygwin", Triple::Cygwin)
.StartsWith("darwin", Triple::Darwin)
.StartsWith("dragonfly", Triple::DragonFly)
.StartsWith("freebsd", Triple::FreeBSD)
.StartsWith("ios", Triple::IOS)
.StartsWith("kfreebsd", Triple::KFreeBSD)
.StartsWith("linux", Triple::Linux)
.StartsWith("lv2", Triple::Lv2)
.StartsWith("macosx", Triple::MacOSX)
.StartsWith("mingw32", Triple::MinGW32)
.StartsWith("netbsd", Triple::NetBSD)
.StartsWith("openbsd", Triple::OpenBSD)
.StartsWith("solaris", Triple::Solaris)
.StartsWith("win32", Triple::Win32)
.StartsWith("haiku", Triple::Haiku)
.StartsWith("minix", Triple::Minix)
.StartsWith("rtems", Triple::RTEMS)
.StartsWith("nacl", Triple::NativeClient)
.StartsWith("cnk", Triple::CNK)
.Default(Triple::UnknownOS);
}
static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
return StringSwitch<Triple::EnvironmentType>(EnvironmentName)
.StartsWith("eabi", Triple::EABI)
.StartsWith("gnueabihf", Triple::GNUEABIHF)
.StartsWith("gnueabi", Triple::GNUEABI)
.StartsWith("gnu", Triple::GNU)
.StartsWith("macho", Triple::MachO)
.StartsWith("androideabi", Triple::ANDROIDEABI)
.Default(Triple::UnknownEnvironment);
}
/// \brief Construct a triple from the string representation provided.
///
/// This stores the string representation and parses the various pieces into
/// enum members.
Triple::Triple(const Twine &Str)
: Data(Str.str()),
Arch(parseArch(getArchName())),
Vendor(parseVendor(getVendorName())),
OS(parseOS(getOSName())),
Environment(parseEnvironment(getEnvironmentName())) {
}
/// \brief Construct a triple from string representations of the architecture,
/// vendor, and OS.
///
/// This joins each argument into a canonical string representation and parses
/// them into enum members. It leaves the environment unknown and omits it from
/// the string representation.
Triple::Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr)
: Data((ArchStr + Twine('-') + VendorStr + Twine('-') + OSStr).str()),
Arch(parseArch(ArchStr.str())),
Vendor(parseVendor(VendorStr.str())),
OS(parseOS(OSStr.str())),
Environment() {
}
/// \brief Construct a triple from string representations of the architecture,
/// vendor, OS, and environment.
///
/// This joins each argument into a canonical string representation and parses
/// them into enum members.
Triple::Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr,
const Twine &EnvironmentStr)
: Data((ArchStr + Twine('-') + VendorStr + Twine('-') + OSStr + Twine('-') +
EnvironmentStr).str()),
Arch(parseArch(ArchStr.str())),
Vendor(parseVendor(VendorStr.str())),
OS(parseOS(OSStr.str())),
Environment(parseEnvironment(EnvironmentStr.str())) {
}
std::string Triple::normalize(StringRef Str) {
// Parse into components.
SmallVector<StringRef, 4> Components;
Str.split(Components, "-");
// If the first component corresponds to a known architecture, preferentially
// use it for the architecture. If the second component corresponds to a
// known vendor, preferentially use it for the vendor, etc. This avoids silly
// component movement when a component parses as (eg) both a valid arch and a
// valid os.
ArchType Arch = UnknownArch;
if (Components.size() > 0)
Arch = parseArch(Components[0]);
VendorType Vendor = UnknownVendor;
if (Components.size() > 1)
Vendor = parseVendor(Components[1]);
OSType OS = UnknownOS;
if (Components.size() > 2)
OS = parseOS(Components[2]);
EnvironmentType Environment = UnknownEnvironment;
if (Components.size() > 3)
Environment = parseEnvironment(Components[3]);
// Note which components are already in their final position. These will not
// be moved.
bool Found[4];
Found[0] = Arch != UnknownArch;
Found[1] = Vendor != UnknownVendor;
Found[2] = OS != UnknownOS;
Found[3] = Environment != UnknownEnvironment;
// If they are not there already, permute the components into their canonical
// positions by seeing if they parse as a valid architecture, and if so moving
// the component to the architecture position etc.
for (unsigned Pos = 0; Pos != array_lengthof(Found); ++Pos) {
if (Found[Pos])
continue; // Already in the canonical position.
for (unsigned Idx = 0; Idx != Components.size(); ++Idx) {
// Do not reparse any components that already matched.
if (Idx < array_lengthof(Found) && Found[Idx])
continue;
// Does this component parse as valid for the target position?
bool Valid = false;
StringRef Comp = Components[Idx];
switch (Pos) {
default: llvm_unreachable("unexpected component type!");
case 0:
Arch = parseArch(Comp);
Valid = Arch != UnknownArch;
break;
case 1:
Vendor = parseVendor(Comp);
Valid = Vendor != UnknownVendor;
break;
case 2:
OS = parseOS(Comp);
Valid = OS != UnknownOS;
break;
case 3:
Environment = parseEnvironment(Comp);
Valid = Environment != UnknownEnvironment;
break;
}
if (!Valid)
continue; // Nope, try the next component.
// Move the component to the target position, pushing any non-fixed
// components that are in the way to the right. This tends to give
// good results in the common cases of a forgotten vendor component
// or a wrongly positioned environment.
if (Pos < Idx) {
// Insert left, pushing the existing components to the right. For
// example, a-b-i386 -> i386-a-b when moving i386 to the front.
StringRef CurrentComponent(""); // The empty component.
// Replace the component we are moving with an empty component.
std::swap(CurrentComponent, Components[Idx]);
// Insert the component being moved at Pos, displacing any existing
// components to the right.
for (unsigned i = Pos; !CurrentComponent.empty(); ++i) {
// Skip over any fixed components.
while (i < array_lengthof(Found) && Found[i])
++i;
// Place the component at the new position, getting the component
// that was at this position - it will be moved right.
std::swap(CurrentComponent, Components[i]);
}
} else if (Pos > Idx) {
// Push right by inserting empty components until the component at Idx
// reaches the target position Pos. For example, pc-a -> -pc-a when
// moving pc to the second position.
do {
// Insert one empty component at Idx.
StringRef CurrentComponent(""); // The empty component.
for (unsigned i = Idx; i < Components.size();) {
// Place the component at the new position, getting the component
// that was at this position - it will be moved right.
std::swap(CurrentComponent, Components[i]);
// If it was placed on top of an empty component then we are done.
if (CurrentComponent.empty())
break;
// Advance to the next component, skipping any fixed components.
while (++i < array_lengthof(Found) && Found[i])
;
}
// The last component was pushed off the end - append it.
if (!CurrentComponent.empty())
Components.push_back(CurrentComponent);
// Advance Idx to the component's new position.
while (++Idx < array_lengthof(Found) && Found[Idx])
;
} while (Idx < Pos); // Add more until the final position is reached.
}
assert(Pos < Components.size() && Components[Pos] == Comp &&
"Component moved wrong!");
Found[Pos] = true;
break;
}
}
// Special case logic goes here. At this point Arch, Vendor and OS have the
// correct values for the computed components.
// Stick the corrected components back together to form the normalized string.
std::string Normalized;
for (unsigned i = 0, e = Components.size(); i != e; ++i) {
if (i) Normalized += '-';
Normalized += Components[i];
}
return Normalized;
}
StringRef Triple::getArchName() const {
return StringRef(Data).split('-').first; // Isolate first component
}
StringRef Triple::getVendorName() const {
StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
return Tmp.split('-').first; // Isolate second component
}
StringRef Triple::getOSName() const {
StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
Tmp = Tmp.split('-').second; // Strip second component
return Tmp.split('-').first; // Isolate third component
}
StringRef Triple::getEnvironmentName() const {
StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
Tmp = Tmp.split('-').second; // Strip second component
return Tmp.split('-').second; // Strip third component
}
StringRef Triple::getOSAndEnvironmentName() const {
StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
return Tmp.split('-').second; // Strip second component
}
static unsigned EatNumber(StringRef &Str) {
assert(!Str.empty() && Str[0] >= '0' && Str[0] <= '9' && "Not a number");
unsigned Result = 0;
do {
// Consume the leading digit.
Result = Result*10 + (Str[0] - '0');
// Eat the digit.
Str = Str.substr(1);
} while (!Str.empty() && Str[0] >= '0' && Str[0] <= '9');
return Result;
}
void Triple::getOSVersion(unsigned &Major, unsigned &Minor,
unsigned &Micro) const {
StringRef OSName = getOSName();
// Assume that the OS portion of the triple starts with the canonical name.
StringRef OSTypeName = getOSTypeName(getOS());
if (OSName.startswith(OSTypeName))
OSName = OSName.substr(OSTypeName.size());
// Any unset version defaults to 0.
Major = Minor = Micro = 0;
// Parse up to three components.
unsigned *Components[3] = { &Major, &Minor, &Micro };
for (unsigned i = 0; i != 3; ++i) {
if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
break;
// Consume the leading number.
*Components[i] = EatNumber(OSName);
// Consume the separator, if present.
if (OSName.startswith("."))
OSName = OSName.substr(1);
}
}
bool Triple::getMacOSXVersion(unsigned &Major, unsigned &Minor,
unsigned &Micro) const {
getOSVersion(Major, Minor, Micro);
switch (getOS()) {
default: llvm_unreachable("unexpected OS for Darwin triple");
case Darwin:
// Default to darwin8, i.e., MacOSX 10.4.
if (Major == 0)
Major = 8;
// Darwin version numbers are skewed from OS X versions.
if (Major < 4)
return false;
Micro = 0;
Minor = Major - 4;
Major = 10;
break;
case MacOSX:
// Default to 10.4.
if (Major == 0) {
Major = 10;
Minor = 4;
}
if (Major != 10)
return false;
break;
case IOS:
// Ignore the version from the triple. This is only handled because the
// the clang driver combines OS X and IOS support into a common Darwin
// toolchain that wants to know the OS X version number even when targeting
// IOS.
Major = 10;
Minor = 4;
Micro = 0;
break;
}
return true;
}
void Triple::setTriple(const Twine &Str) {
*this = Triple(Str);
}
void Triple::setArch(ArchType Kind) {
setArchName(getArchTypeName(Kind));
}
void Triple::setVendor(VendorType Kind) {
setVendorName(getVendorTypeName(Kind));
}
void Triple::setOS(OSType Kind) {
setOSName(getOSTypeName(Kind));
}
void Triple::setEnvironment(EnvironmentType Kind) {
setEnvironmentName(getEnvironmentTypeName(Kind));
}
void Triple::setArchName(StringRef Str) {
// Work around a miscompilation bug for Twines in gcc 4.0.3.
SmallString<64> Triple;
Triple += Str;
Triple += "-";
Triple += getVendorName();
Triple += "-";
Triple += getOSAndEnvironmentName();
setTriple(Triple.str());
}
void Triple::setVendorName(StringRef Str) {
setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
}
void Triple::setOSName(StringRef Str) {
if (hasEnvironment())
setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
"-" + getEnvironmentName());
else
setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
}
void Triple::setEnvironmentName(StringRef Str) {
setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
"-" + Str);
}
void Triple::setOSAndEnvironmentName(StringRef Str) {
setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
}
static unsigned getArchPointerBitWidth(llvm::Triple::ArchType Arch) {
switch (Arch) {
case llvm::Triple::UnknownArch:
return 0;
case llvm::Triple::msp430:
return 16;
case llvm::Triple::amdil:
case llvm::Triple::arm:
case llvm::Triple::cellspu:
case llvm::Triple::hexagon:
case llvm::Triple::le32:
case llvm::Triple::mblaze:
case llvm::Triple::mips:
case llvm::Triple::mipsel:
case llvm::Triple::ppc:
case llvm::Triple::ptx32:
case llvm::Triple::r600:
case llvm::Triple::sparc:
case llvm::Triple::tce:
case llvm::Triple::thumb:
case llvm::Triple::x86:
case llvm::Triple::xcore:
return 32;
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
case llvm::Triple::ppc64:
case llvm::Triple::ptx64:
case llvm::Triple::sparcv9:
case llvm::Triple::x86_64:
return 64;
}
llvm_unreachable("Invalid architecture value");
}
bool Triple::isArch64Bit() const {
return getArchPointerBitWidth(getArch()) == 64;
}
bool Triple::isArch32Bit() const {
return getArchPointerBitWidth(getArch()) == 32;
}
bool Triple::isArch16Bit() const {
return getArchPointerBitWidth(getArch()) == 16;
}
Triple Triple::get32BitArchVariant() const {
Triple T(*this);
switch (getArch()) {
case Triple::UnknownArch:
case Triple::msp430:
T.setArch(UnknownArch);
break;
case Triple::amdil:
case Triple::arm:
case Triple::cellspu:
case Triple::hexagon:
case Triple::le32:
case Triple::mblaze:
case Triple::mips:
case Triple::mipsel:
case Triple::ppc:
case Triple::ptx32:
case Triple::r600:
case Triple::sparc:
case Triple::tce:
case Triple::thumb:
case Triple::x86:
case Triple::xcore:
// Already 32-bit.
break;
case Triple::mips64: T.setArch(Triple::mips); break;
case Triple::mips64el: T.setArch(Triple::mipsel); break;
case Triple::ppc64: T.setArch(Triple::ppc); break;
case Triple::ptx64: T.setArch(Triple::ptx32); break;
case Triple::sparcv9: T.setArch(Triple::sparc); break;
case Triple::x86_64: T.setArch(Triple::x86); break;
}
return T;
}
Triple Triple::get64BitArchVariant() const {
Triple T(*this);
switch (getArch()) {
case Triple::UnknownArch:
case Triple::amdil:
case Triple::arm:
case Triple::cellspu:
case Triple::hexagon:
case Triple::le32:
case Triple::mblaze:
case Triple::msp430:
case Triple::r600:
case Triple::tce:
case Triple::thumb:
case Triple::xcore:
T.setArch(UnknownArch);
break;
case Triple::mips64:
case Triple::mips64el:
case Triple::ppc64:
case Triple::ptx64:
case Triple::sparcv9:
case Triple::x86_64:
// Already 64-bit.
break;
case Triple::mips: T.setArch(Triple::mips64); break;
case Triple::mipsel: T.setArch(Triple::mips64el); break;
case Triple::ppc: T.setArch(Triple::ppc64); break;
case Triple::ptx32: T.setArch(Triple::ptx64); break;
case Triple::sparc: T.setArch(Triple::sparcv9); break;
case Triple::x86: T.setArch(Triple::x86_64); break;
}
return T;
}