llvm-6502/lib/Support/Triple.cpp
Daniel Dunbar ed6878842b Add comment re: clang dependency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81393 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09 23:01:25 +00:00

416 lines
11 KiB
C++

//===--- 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/Twine.h"
#include <cassert>
#include <cstring>
using namespace llvm;
//
const char *Triple::getArchTypeName(ArchType Kind) {
switch (Kind) {
case InvalidArch: return "<invalid>";
case UnknownArch: return "unknown";
case alpha: return "alpha";
case arm: return "arm";
case bfin: return "bfin";
case cellspu: return "cellspu";
case mips: return "mips";
case mipsel: return "mipsel";
case msp430: return "msp430";
case pic16: return "pic16";
case ppc64: return "powerpc64";
case ppc: return "powerpc";
case sparc: return "sparc";
case systemz: return "s390x";
case tce: return "tce";
case thumb: return "thumb";
case x86: return "i386";
case x86_64: return "x86_64";
case xcore: return "xcore";
}
return "<invalid>";
}
const char *Triple::getArchTypePrefix(ArchType Kind) {
switch (Kind) {
default:
return 0;
case alpha: return "alpha";
case arm:
case thumb: return "arm";
case bfin: return "bfin";
case cellspu: return "spu";
case ppc64:
case ppc: return "ppc";
case sparc: return "sparc";
case x86:
case x86_64: return "x86";
case xcore: return "xcore";
}
}
const char *Triple::getVendorTypeName(VendorType Kind) {
switch (Kind) {
case UnknownVendor: return "unknown";
case Apple: return "apple";
case PC: return "pc";
}
return "<invalid>";
}
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 Linux: return "linux";
case MinGW32: return "mingw32";
case MinGW64: return "mingw64";
case NetBSD: return "netbsd";
case OpenBSD: return "openbsd";
case Solaris: return "solaris";
case Win32: return "win32";
}
return "<invalid>";
}
Triple::ArchType Triple::getArchTypeForLLVMName(const StringRef &Name) {
if (Name == "alpha")
return alpha;
if (Name == "arm")
return arm;
if (Name == "bfin")
return bfin;
if (Name == "cellspu")
return cellspu;
if (Name == "mips")
return mips;
if (Name == "mipsel")
return mipsel;
if (Name == "msp430")
return msp430;
if (Name == "pic16")
return pic16;
if (Name == "ppc64")
return ppc64;
if (Name == "ppc")
return ppc;
if (Name == "sparc")
return sparc;
if (Name == "systemz")
return systemz;
if (Name == "tce")
return tce;
if (Name == "thumb")
return thumb;
if (Name == "x86")
return x86;
if (Name == "x86-64")
return x86_64;
if (Name == "xcore")
return xcore;
return UnknownArch;
}
Triple::ArchType Triple::getArchTypeForDarwinArchName(const 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.
if (Str == "ppc" || Str == "ppc601" || Str == "ppc603" || Str == "ppc604" ||
Str == "ppc604e" || Str == "ppc750" || Str == "ppc7400" ||
Str == "ppc7450" || Str == "ppc970")
return Triple::ppc;
if (Str == "ppc64")
return Triple::ppc64;
if (Str == "i386" || Str == "i486" || Str == "i486SX" || Str == "pentium" ||
Str == "i586" || Str == "pentpro" || Str == "i686" || Str == "pentIIm3" ||
Str == "pentIIm5" || Str == "pentium4")
return Triple::x86;
if (Str == "x86_64")
return Triple::x86_64;
// This is derived from the driver driver.
if (Str == "arm" || Str == "armv4t" || Str == "armv5" || Str == "xscale" ||
Str == "armv6" || Str == "armv7")
return Triple::arm;
return Triple::UnknownArch;
}
//
void Triple::Parse() const {
assert(!isInitialized() && "Invalid parse call.");
StringRef ArchName = getArchName();
StringRef VendorName = getVendorName();
StringRef OSName = getOSName();
if (ArchName.size() == 4 && ArchName[0] == 'i' &&
ArchName[2] == '8' && ArchName[3] == '6' &&
ArchName[1] - '3' < 6) // i[3-9]86
Arch = x86;
else if (ArchName == "amd64" || ArchName == "x86_64")
Arch = x86_64;
else if (ArchName == "bfin")
Arch = bfin;
else if (ArchName == "pic16")
Arch = pic16;
else if (ArchName == "powerpc")
Arch = ppc;
else if (ArchName == "powerpc64")
Arch = ppc64;
else if (ArchName == "arm" ||
ArchName.startswith("armv") ||
ArchName == "xscale")
Arch = arm;
else if (ArchName == "thumb" ||
ArchName.startswith("thumbv"))
Arch = thumb;
else if (ArchName.startswith("alpha"))
Arch = alpha;
else if (ArchName == "spu" || ArchName == "cellspu")
Arch = cellspu;
else if (ArchName == "msp430")
Arch = msp430;
else if (ArchName == "mips" || ArchName == "mipsallegrex")
Arch = mips;
else if (ArchName == "mipsel" || ArchName == "mipsallegrexel" ||
ArchName == "psp")
Arch = mipsel;
else if (ArchName == "sparc")
Arch = sparc;
else if (ArchName == "s390x")
Arch = systemz;
else if (ArchName == "tce")
Arch = tce;
else if (ArchName == "xcore")
Arch = xcore;
else
Arch = UnknownArch;
// Handle some exceptional cases where the OS / environment components are
// stuck into the vendor field.
if (StringRef(getTriple()).count('-') == 1) {
StringRef VendorName = getVendorName();
if (VendorName.startswith("mingw32")) { // 'i386-mingw32', etc.
Vendor = PC;
OS = MinGW32;
return;
}
// arm-elf is another example, but we don't currently parse anything about
// the environment.
}
if (VendorName == "apple")
Vendor = Apple;
else if (VendorName == "pc")
Vendor = PC;
else
Vendor = UnknownVendor;
if (OSName.startswith("auroraux"))
OS = AuroraUX;
else if (OSName.startswith("cygwin"))
OS = Cygwin;
else if (OSName.startswith("darwin"))
OS = Darwin;
else if (OSName.startswith("dragonfly"))
OS = DragonFly;
else if (OSName.startswith("freebsd"))
OS = FreeBSD;
else if (OSName.startswith("linux"))
OS = Linux;
else if (OSName.startswith("mingw32"))
OS = MinGW32;
else if (OSName.startswith("mingw64"))
OS = MinGW64;
else if (OSName.startswith("netbsd"))
OS = NetBSD;
else if (OSName.startswith("openbsd"))
OS = OpenBSD;
else if (OSName.startswith("solaris"))
OS = Solaris;
else if (OSName.startswith("win32"))
OS = Win32;
else
OS = UnknownOS;
assert(isInitialized() && "Failed to initialize!");
}
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 = Str[0]-'0';
// Eat the digit.
Str = Str.substr(1);
// Handle "darwin11".
if (Result == 1 && !Str.empty() && Str[0] >= '0' && Str[0] <= '9') {
Result = Result*10 + (Str[0] - '0');
// Eat the digit.
Str = Str.substr(1);
}
return Result;
}
/// getDarwinNumber - Parse the 'darwin number' out of the specific target
/// triple. For example, if we have darwin8.5 return 8,5,0. If any entry is
/// not defined, return 0's. This requires that the triple have an OSType of
/// darwin before it is called.
void Triple::getDarwinNumber(unsigned &Maj, unsigned &Min,
unsigned &Revision) const {
assert(getOS() == Darwin && "Not a darwin target triple!");
StringRef OSName = getOSName();
assert(OSName.startswith("darwin") && "Unknown darwin target triple!");
// Strip off "darwin".
OSName = OSName.substr(6);
Maj = Min = Revision = 0;
if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
return;
// The major version is the first digit.
Maj = EatNumber(OSName);
if (OSName.empty()) return;
// Handle minor version: 10.4.9 -> darwin8.9.
if (OSName[0] != '.')
return;
// Eat the '.'.
OSName = OSName.substr(1);
if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
return;
Min = EatNumber(OSName);
if (OSName.empty()) return;
// Handle revision darwin8.9.1
if (OSName[0] != '.')
return;
// Eat the '.'.
OSName = OSName.substr(1);
if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
return;
Revision = EatNumber(OSName);
}
void Triple::setTriple(const Twine &Str) {
Data = Str.str();
Arch = InvalidArch;
}
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::setArchName(const StringRef &Str) {
setTriple(Str + "-" + getVendorName() + "-" + getOSAndEnvironmentName());
}
void Triple::setVendorName(const StringRef &Str) {
setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
}
void Triple::setOSName(const StringRef &Str) {
if (hasEnvironment())
setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
"-" + getEnvironmentName());
else
setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
}
void Triple::setEnvironmentName(const StringRef &Str) {
setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
"-" + Str);
}
void Triple::setOSAndEnvironmentName(const StringRef &Str) {
setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
}