llvm-6502/lib/Support/Triple.cpp
Chris Lattner dfc17f75e8 add a couple of helpers to the Triple class for decoding
the darwin version string.  This should help consolidate
the variety of weird functions we have scattered around the
codebase that do stuff like this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78792 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12 06:19:40 +00:00

318 lines
8.3 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 ppc64: return "powerpc64";
case ppc: return "powerpc";
case sparc: return "sparc";
case systemz: return "s390x";
case thumb: return "thumb";
case x86: return "i386";
case x86_64: return "x86_64";
case xcore: return "xcore";
}
return "<invalid>";
}
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 NetBSD: return "netbsd";
case OpenBSD: return "openbsd";
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 == "ppc64")
return ppc64;
if (Name == "ppc")
return ppc;
if (Name == "sparc")
return sparc;
if (Name == "systemz")
return systemz;
if (Name == "thumb")
return thumb;
if (Name == "x86")
return x86;
if (Name == "x86_64")
return x86_64;
if (Name == "xcore")
return xcore;
return UnknownArch;
}
//
void Triple::Parse() const {
assert(!isInitialized() && "Invalid parse call.");
StringRef ArchName = getArchName();
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 == "powerpc")
Arch = ppc;
else if (ArchName == "powerpc64")
Arch = ppc64;
else if (ArchName == "arm" ||
ArchName.startswith("armv"))
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 == "bfin")
Arch = bfin;
else
Arch = UnknownArch;
StringRef VendorName = getVendorName();
if (VendorName == "apple")
Vendor = Apple;
else if (VendorName == "pc")
Vendor = PC;
else
Vendor = UnknownVendor;
StringRef OSName = getOSName();
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("netbsd"))
OS = NetBSD;
else if (OSName.startswith("openbsd"))
OS = OpenBSD;
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);
}