forked from OSchip/llvm-project
475 lines
12 KiB
C++
475 lines
12 KiB
C++
//===--- Triple.cpp - Target triple helper class --------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/Triple.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/Twine.h"
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#include <cassert>
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#include <cstring>
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using namespace llvm;
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//
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const char *Triple::getArchTypeName(ArchType Kind) {
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switch (Kind) {
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case InvalidArch: return "<invalid>";
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case UnknownArch: return "unknown";
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case alpha: return "alpha";
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case arm: return "arm";
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case bfin: return "bfin";
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case cellspu: return "cellspu";
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case mips: return "mips";
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case mipsel: return "mipsel";
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case msp430: return "msp430";
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case pic16: return "pic16";
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case ppc64: return "powerpc64";
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case ppc: return "powerpc";
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case sparc: return "sparc";
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case sparcv9: return "sparcv9";
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case systemz: return "s390x";
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case tce: return "tce";
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case thumb: return "thumb";
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case x86: return "i386";
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case x86_64: return "x86_64";
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case xcore: return "xcore";
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case mblaze: return "mblaze";
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}
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return "<invalid>";
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}
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const char *Triple::getArchTypePrefix(ArchType Kind) {
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switch (Kind) {
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default:
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return 0;
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case alpha: return "alpha";
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case arm:
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case thumb: return "arm";
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case bfin: return "bfin";
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case cellspu: return "spu";
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case ppc64:
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case ppc: return "ppc";
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case mblaze: return "mblaze";
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case sparcv9:
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case sparc: return "sparc";
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case x86:
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case x86_64: return "x86";
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case xcore: return "xcore";
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}
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}
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const char *Triple::getVendorTypeName(VendorType Kind) {
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switch (Kind) {
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case UnknownVendor: return "unknown";
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case Apple: return "apple";
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case PC: return "pc";
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}
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return "<invalid>";
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}
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const char *Triple::getOSTypeName(OSType Kind) {
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switch (Kind) {
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case UnknownOS: return "unknown";
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case AuroraUX: return "auroraux";
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case Cygwin: return "cygwin";
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case Darwin: return "darwin";
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case DragonFly: return "dragonfly";
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case FreeBSD: return "freebsd";
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case Linux: return "linux";
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case Lv2: return "lv2";
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case MinGW32: return "mingw32";
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case MinGW64: return "mingw64";
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case NetBSD: return "netbsd";
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case OpenBSD: return "openbsd";
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case Psp: return "psp";
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case Solaris: return "solaris";
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case Win32: return "win32";
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case Haiku: return "haiku";
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}
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return "<invalid>";
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}
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Triple::ArchType Triple::getArchTypeForLLVMName(StringRef Name) {
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if (Name == "alpha")
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return alpha;
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if (Name == "arm")
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return arm;
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if (Name == "bfin")
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return bfin;
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if (Name == "cellspu")
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return cellspu;
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if (Name == "mips")
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return mips;
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if (Name == "mipsel")
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return mipsel;
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if (Name == "msp430")
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return msp430;
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if (Name == "pic16")
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return pic16;
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if (Name == "ppc64")
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return ppc64;
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if (Name == "ppc")
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return ppc;
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if (Name == "mblaze")
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return mblaze;
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if (Name == "sparc")
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return sparc;
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if (Name == "sparcv9")
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return sparcv9;
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if (Name == "systemz")
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return systemz;
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if (Name == "tce")
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return tce;
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if (Name == "thumb")
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return thumb;
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if (Name == "x86")
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return x86;
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if (Name == "x86-64")
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return x86_64;
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if (Name == "xcore")
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return xcore;
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return UnknownArch;
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}
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Triple::ArchType Triple::getArchTypeForDarwinArchName(StringRef Str) {
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// See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for
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// archs which Darwin doesn't use.
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// The matching this routine does is fairly pointless, since it is neither the
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// complete architecture list, nor a reasonable subset. The problem is that
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// historically the driver driver accepts this and also ties its -march=
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// handling to the architecture name, so we need to be careful before removing
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// support for it.
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// This code must be kept in sync with Clang's Darwin specific argument
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// translation.
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if (Str == "ppc" || Str == "ppc601" || Str == "ppc603" || Str == "ppc604" ||
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Str == "ppc604e" || Str == "ppc750" || Str == "ppc7400" ||
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Str == "ppc7450" || Str == "ppc970")
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return Triple::ppc;
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if (Str == "ppc64")
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return Triple::ppc64;
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if (Str == "i386" || Str == "i486" || Str == "i486SX" || Str == "pentium" ||
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Str == "i586" || Str == "pentpro" || Str == "i686" || Str == "pentIIm3" ||
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Str == "pentIIm5" || Str == "pentium4")
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return Triple::x86;
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if (Str == "x86_64")
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return Triple::x86_64;
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// This is derived from the driver driver.
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if (Str == "arm" || Str == "armv4t" || Str == "armv5" || Str == "xscale" ||
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Str == "armv6" || Str == "armv7")
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return Triple::arm;
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return Triple::UnknownArch;
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}
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// Returns architecture name that is unsderstood by the target assembler.
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const char *Triple::getArchNameForAssembler() {
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if (getOS() != Triple::Darwin && getVendor() != Triple::Apple)
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return NULL;
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StringRef Str = getArchName();
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if (Str == "i386")
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return "i386";
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if (Str == "x86_64")
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return "x86_64";
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if (Str == "powerpc")
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return "ppc";
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if (Str == "powerpc64")
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return "ppc64";
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if (Str == "mblaze" || Str == "microblaze")
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return "mblaze";
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if (Str == "arm")
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return "arm";
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if (Str == "armv4t" || Str == "thumbv4t")
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return "armv4t";
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if (Str == "armv5" || Str == "armv5e" || Str == "thumbv5" || Str == "thumbv5e")
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return "armv5";
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if (Str == "armv6" || Str == "thumbv6")
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return "armv6";
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if (Str == "armv7" || Str == "thumbv7")
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return "armv7";
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return NULL;
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}
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//
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void Triple::Parse() const {
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assert(!isInitialized() && "Invalid parse call.");
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StringRef ArchName = getArchName();
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StringRef VendorName = getVendorName();
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StringRef OSName = getOSName();
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if (ArchName.size() == 4 && ArchName[0] == 'i' &&
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ArchName[2] == '8' && ArchName[3] == '6' &&
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ArchName[1] - '3' < 6) // i[3-9]86
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Arch = x86;
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else if (ArchName == "amd64" || ArchName == "x86_64")
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Arch = x86_64;
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else if (ArchName == "bfin")
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Arch = bfin;
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else if (ArchName == "pic16")
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Arch = pic16;
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else if (ArchName == "powerpc")
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Arch = ppc;
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else if ((ArchName == "powerpc64") || (ArchName == "ppu"))
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Arch = ppc64;
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else if (ArchName == "mblaze")
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Arch = mblaze;
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else if (ArchName == "arm" ||
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ArchName.startswith("armv") ||
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ArchName == "xscale")
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Arch = arm;
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else if (ArchName == "thumb" ||
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ArchName.startswith("thumbv"))
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Arch = thumb;
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else if (ArchName.startswith("alpha"))
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Arch = alpha;
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else if (ArchName == "spu" || ArchName == "cellspu")
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Arch = cellspu;
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else if (ArchName == "msp430")
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Arch = msp430;
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else if (ArchName == "mips" || ArchName == "mipsallegrex")
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Arch = mips;
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else if (ArchName == "mipsel" || ArchName == "mipsallegrexel" ||
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ArchName == "psp")
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Arch = mipsel;
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else if (ArchName == "sparc")
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Arch = sparc;
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else if (ArchName == "sparcv9")
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Arch = sparcv9;
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else if (ArchName == "s390x")
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Arch = systemz;
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else if (ArchName == "tce")
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Arch = tce;
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else if (ArchName == "xcore")
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Arch = xcore;
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else
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Arch = UnknownArch;
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// Handle some exceptional cases where the OS / environment components are
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// stuck into the vendor field.
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if (StringRef(getTriple()).count('-') == 1) {
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StringRef VendorName = getVendorName();
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if (VendorName.startswith("mingw32")) { // 'i386-mingw32', etc.
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Vendor = PC;
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OS = MinGW32;
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return;
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}
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// arm-elf is another example, but we don't currently parse anything about
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// the environment.
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}
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if (VendorName == "apple")
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Vendor = Apple;
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else if (VendorName == "pc")
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Vendor = PC;
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else
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Vendor = UnknownVendor;
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if (OSName.startswith("auroraux"))
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OS = AuroraUX;
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else if (OSName.startswith("cygwin"))
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OS = Cygwin;
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else if (OSName.startswith("darwin"))
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OS = Darwin;
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else if (OSName.startswith("dragonfly"))
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OS = DragonFly;
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else if (OSName.startswith("freebsd"))
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OS = FreeBSD;
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else if (OSName.startswith("linux"))
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OS = Linux;
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else if (OSName.startswith("lv2"))
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OS = Lv2;
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else if (OSName.startswith("mingw32"))
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OS = MinGW32;
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else if (OSName.startswith("mingw64"))
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OS = MinGW64;
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else if (OSName.startswith("netbsd"))
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OS = NetBSD;
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else if (OSName.startswith("openbsd"))
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OS = OpenBSD;
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else if (OSName.startswith("psp"))
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OS = Psp;
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else if (OSName.startswith("solaris"))
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OS = Solaris;
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else if (OSName.startswith("win32"))
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OS = Win32;
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else if (OSName.startswith("haiku"))
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OS = Haiku;
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else
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OS = UnknownOS;
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assert(isInitialized() && "Failed to initialize!");
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}
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StringRef Triple::getArchName() const {
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return StringRef(Data).split('-').first; // Isolate first component
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}
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StringRef Triple::getVendorName() const {
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StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
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return Tmp.split('-').first; // Isolate second component
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}
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StringRef Triple::getOSName() const {
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StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
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Tmp = Tmp.split('-').second; // Strip second component
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return Tmp.split('-').first; // Isolate third component
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}
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StringRef Triple::getEnvironmentName() const {
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StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
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Tmp = Tmp.split('-').second; // Strip second component
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return Tmp.split('-').second; // Strip third component
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}
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StringRef Triple::getOSAndEnvironmentName() const {
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StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
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return Tmp.split('-').second; // Strip second component
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}
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static unsigned EatNumber(StringRef &Str) {
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assert(!Str.empty() && Str[0] >= '0' && Str[0] <= '9' && "Not a number");
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unsigned Result = Str[0]-'0';
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// Eat the digit.
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Str = Str.substr(1);
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// Handle "darwin11".
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if (Result == 1 && !Str.empty() && Str[0] >= '0' && Str[0] <= '9') {
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Result = Result*10 + (Str[0] - '0');
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// Eat the digit.
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Str = Str.substr(1);
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}
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return Result;
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}
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/// getDarwinNumber - Parse the 'darwin number' out of the specific target
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/// triple. For example, if we have darwin8.5 return 8,5,0. If any entry is
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/// not defined, return 0's. This requires that the triple have an OSType of
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/// darwin before it is called.
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void Triple::getDarwinNumber(unsigned &Maj, unsigned &Min,
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unsigned &Revision) const {
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assert(getOS() == Darwin && "Not a darwin target triple!");
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StringRef OSName = getOSName();
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assert(OSName.startswith("darwin") && "Unknown darwin target triple!");
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// Strip off "darwin".
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OSName = OSName.substr(6);
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Maj = Min = Revision = 0;
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if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
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return;
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// The major version is the first digit.
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Maj = EatNumber(OSName);
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if (OSName.empty()) return;
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// Handle minor version: 10.4.9 -> darwin8.9.
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if (OSName[0] != '.')
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return;
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// Eat the '.'.
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OSName = OSName.substr(1);
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if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
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return;
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Min = EatNumber(OSName);
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if (OSName.empty()) return;
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// Handle revision darwin8.9.1
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if (OSName[0] != '.')
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return;
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// Eat the '.'.
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OSName = OSName.substr(1);
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if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
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return;
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Revision = EatNumber(OSName);
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}
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void Triple::setTriple(const Twine &Str) {
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Data = Str.str();
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Arch = InvalidArch;
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}
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void Triple::setArch(ArchType Kind) {
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setArchName(getArchTypeName(Kind));
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}
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void Triple::setVendor(VendorType Kind) {
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setVendorName(getVendorTypeName(Kind));
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}
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void Triple::setOS(OSType Kind) {
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setOSName(getOSTypeName(Kind));
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}
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void Triple::setArchName(StringRef Str) {
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// Work around a miscompilation bug for Twines in gcc 4.0.3.
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SmallString<64> Triple;
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Triple += Str;
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Triple += "-";
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Triple += getVendorName();
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Triple += "-";
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Triple += getOSAndEnvironmentName();
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setTriple(Triple.str());
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}
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void Triple::setVendorName(StringRef Str) {
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setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
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}
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void Triple::setOSName(StringRef Str) {
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if (hasEnvironment())
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setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
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"-" + getEnvironmentName());
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else
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setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
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}
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void Triple::setEnvironmentName(StringRef Str) {
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setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
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"-" + Str);
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}
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void Triple::setOSAndEnvironmentName(StringRef Str) {
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setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
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}
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