mirror of
https://github.com/c64scene-ar/llvm-6502.git
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efd7919618
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136552 91177308-0d34-0410-b5e6-96231b3b80d8
642 lines
19 KiB
C++
642 lines
19 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/STLExtras.h"
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#include <cstring>
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using namespace llvm;
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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 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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case ptx32: return "ptx32";
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case ptx64: return "ptx64";
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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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case ptx32: return "ptx";
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case ptx64: return "ptx";
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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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case SCEI: return "scei";
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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 IOS: return "ios";
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case KFreeBSD: return "kfreebsd";
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case Linux: return "linux";
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case Lv2: return "lv2";
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case MacOSX: return "macosx";
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case MinGW32: return "mingw32";
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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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case Minix: return "minix";
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case RTEMS: return "rtems";
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}
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return "<invalid>";
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}
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const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
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switch (Kind) {
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case UnknownEnvironment: return "unknown";
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case GNU: return "gnu";
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case GNUEABI: return "gnueabi";
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case EABI: return "eabi";
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case MachO: return "macho";
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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 == "ppc64")
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return ppc64;
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if (Name == "ppc32")
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return ppc;
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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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if (Name == "ptx32")
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return ptx32;
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if (Name == "ptx64")
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return ptx64;
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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" || Str == "armv7f" || Str == "armv7k" ||
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Str == "armv7s")
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return Triple::arm;
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if (Str == "ptx32")
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return Triple::ptx32;
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if (Str == "ptx64")
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return Triple::ptx64;
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return Triple::UnknownArch;
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}
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// Returns architecture name that is understood by the target assembler.
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const char *Triple::getArchNameForAssembler() {
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if (!isOSDarwin() && 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"
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|| 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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if (Str == "ptx32")
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return "ptx32";
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if (Str == "ptx64")
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return "ptx64";
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return NULL;
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}
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//
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Triple::ArchType Triple::ParseArch(StringRef ArchName) {
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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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return x86;
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else if (ArchName == "amd64" || ArchName == "x86_64")
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return x86_64;
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else if (ArchName == "bfin")
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return bfin;
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else if (ArchName == "powerpc")
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return ppc;
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else if ((ArchName == "powerpc64") || (ArchName == "ppu"))
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return ppc64;
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else if (ArchName == "mblaze")
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return 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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return arm;
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else if (ArchName == "thumb" ||
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ArchName.startswith("thumbv"))
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return thumb;
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else if (ArchName.startswith("alpha"))
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return alpha;
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else if (ArchName == "spu" || ArchName == "cellspu")
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return cellspu;
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else if (ArchName == "msp430")
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return msp430;
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else if (ArchName == "mips" || ArchName == "mipseb" ||
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ArchName == "mipsallegrex")
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return mips;
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else if (ArchName == "mipsel" || ArchName == "mipsallegrexel" ||
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ArchName == "psp")
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return mipsel;
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else if (ArchName == "sparc")
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return sparc;
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else if (ArchName == "sparcv9")
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return sparcv9;
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else if (ArchName == "s390x")
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return systemz;
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else if (ArchName == "tce")
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return tce;
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else if (ArchName == "xcore")
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return xcore;
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else if (ArchName == "ptx32")
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return ptx32;
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else if (ArchName == "ptx64")
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return ptx64;
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else
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return UnknownArch;
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}
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Triple::VendorType Triple::ParseVendor(StringRef VendorName) {
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if (VendorName == "apple")
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return Apple;
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else if (VendorName == "pc")
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return PC;
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else if (VendorName == "scei")
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return SCEI;
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else
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return UnknownVendor;
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}
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Triple::OSType Triple::ParseOS(StringRef OSName) {
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if (OSName.startswith("auroraux"))
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return AuroraUX;
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else if (OSName.startswith("cygwin"))
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return Cygwin;
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else if (OSName.startswith("darwin"))
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return Darwin;
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else if (OSName.startswith("dragonfly"))
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return DragonFly;
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else if (OSName.startswith("freebsd"))
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return FreeBSD;
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else if (OSName.startswith("ios"))
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return IOS;
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else if (OSName.startswith("kfreebsd"))
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return KFreeBSD;
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else if (OSName.startswith("linux"))
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return Linux;
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else if (OSName.startswith("lv2"))
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return Lv2;
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else if (OSName.startswith("macosx"))
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return MacOSX;
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else if (OSName.startswith("mingw32"))
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return MinGW32;
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else if (OSName.startswith("netbsd"))
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return NetBSD;
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else if (OSName.startswith("openbsd"))
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return OpenBSD;
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else if (OSName.startswith("psp"))
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return Psp;
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else if (OSName.startswith("solaris"))
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return Solaris;
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else if (OSName.startswith("win32"))
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return Win32;
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else if (OSName.startswith("haiku"))
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return Haiku;
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else if (OSName.startswith("minix"))
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return Minix;
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else if (OSName.startswith("rtems"))
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return RTEMS;
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else
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return UnknownOS;
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}
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Triple::EnvironmentType Triple::ParseEnvironment(StringRef EnvironmentName) {
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if (EnvironmentName.startswith("eabi"))
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return EABI;
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else if (EnvironmentName.startswith("gnueabi"))
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return GNUEABI;
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else if (EnvironmentName.startswith("gnu"))
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return GNU;
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else if (EnvironmentName.startswith("macho"))
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return MachO;
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else
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return UnknownEnvironment;
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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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Arch = ParseArch(getArchName());
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Vendor = ParseVendor(getVendorName());
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OS = ParseOS(getOSName());
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Environment = ParseEnvironment(getEnvironmentName());
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assert(isInitialized() && "Failed to initialize!");
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}
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std::string Triple::normalize(StringRef Str) {
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// Parse into components.
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SmallVector<StringRef, 4> Components;
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for (size_t First = 0, Last = 0; Last != StringRef::npos; First = Last + 1) {
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Last = Str.find('-', First);
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Components.push_back(Str.slice(First, Last));
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}
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// If the first component corresponds to a known architecture, preferentially
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// use it for the architecture. If the second component corresponds to a
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// known vendor, preferentially use it for the vendor, etc. This avoids silly
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// component movement when a component parses as (eg) both a valid arch and a
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// valid os.
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ArchType Arch = UnknownArch;
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if (Components.size() > 0)
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Arch = ParseArch(Components[0]);
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VendorType Vendor = UnknownVendor;
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if (Components.size() > 1)
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Vendor = ParseVendor(Components[1]);
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OSType OS = UnknownOS;
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if (Components.size() > 2)
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OS = ParseOS(Components[2]);
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EnvironmentType Environment = UnknownEnvironment;
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if (Components.size() > 3)
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Environment = ParseEnvironment(Components[3]);
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// Note which components are already in their final position. These will not
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// be moved.
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bool Found[4];
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Found[0] = Arch != UnknownArch;
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Found[1] = Vendor != UnknownVendor;
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Found[2] = OS != UnknownOS;
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Found[3] = Environment != UnknownEnvironment;
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// If they are not there already, permute the components into their canonical
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// positions by seeing if they parse as a valid architecture, and if so moving
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// the component to the architecture position etc.
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for (unsigned Pos = 0; Pos != array_lengthof(Found); ++Pos) {
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if (Found[Pos])
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continue; // Already in the canonical position.
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for (unsigned Idx = 0; Idx != Components.size(); ++Idx) {
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// Do not reparse any components that already matched.
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if (Idx < array_lengthof(Found) && Found[Idx])
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continue;
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// Does this component parse as valid for the target position?
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bool Valid = false;
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StringRef Comp = Components[Idx];
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switch (Pos) {
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default:
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assert(false && "unexpected component type!");
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case 0:
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Arch = ParseArch(Comp);
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Valid = Arch != UnknownArch;
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break;
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case 1:
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Vendor = ParseVendor(Comp);
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Valid = Vendor != UnknownVendor;
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break;
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case 2:
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OS = ParseOS(Comp);
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Valid = OS != UnknownOS;
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break;
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case 3:
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Environment = ParseEnvironment(Comp);
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Valid = Environment != UnknownEnvironment;
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break;
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}
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if (!Valid)
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continue; // Nope, try the next component.
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// Move the component to the target position, pushing any non-fixed
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// components that are in the way to the right. This tends to give
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// good results in the common cases of a forgotten vendor component
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// or a wrongly positioned environment.
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if (Pos < Idx) {
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// Insert left, pushing the existing components to the right. For
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// example, a-b-i386 -> i386-a-b when moving i386 to the front.
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StringRef CurrentComponent(""); // The empty component.
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// Replace the component we are moving with an empty component.
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std::swap(CurrentComponent, Components[Idx]);
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// Insert the component being moved at Pos, displacing any existing
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// components to the right.
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for (unsigned i = Pos; !CurrentComponent.empty(); ++i) {
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// Skip over any fixed components.
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while (i < array_lengthof(Found) && Found[i]) ++i;
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// Place the component at the new position, getting the component
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// that was at this position - it will be moved right.
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std::swap(CurrentComponent, Components[i]);
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}
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} else if (Pos > Idx) {
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// Push right by inserting empty components until the component at Idx
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// reaches the target position Pos. For example, pc-a -> -pc-a when
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// moving pc to the second position.
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do {
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// Insert one empty component at Idx.
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StringRef CurrentComponent(""); // The empty component.
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for (unsigned i = Idx; i < Components.size();) {
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// Place the component at the new position, getting the component
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// that was at this position - it will be moved right.
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std::swap(CurrentComponent, Components[i]);
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// If it was placed on top of an empty component then we are done.
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if (CurrentComponent.empty())
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break;
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// Advance to the next component, skipping any fixed components.
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while (++i < array_lengthof(Found) && Found[i])
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;
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}
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// The last component was pushed off the end - append it.
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if (!CurrentComponent.empty())
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Components.push_back(CurrentComponent);
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// Advance Idx to the component's new position.
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while (++Idx < array_lengthof(Found) && Found[Idx]) {}
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} while (Idx < Pos); // Add more until the final position is reached.
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}
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assert(Pos < Components.size() && Components[Pos] == Comp &&
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"Component moved wrong!");
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Found[Pos] = true;
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break;
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}
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}
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// Special case logic goes here. At this point Arch, Vendor and OS have the
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// correct values for the computed components.
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// 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);
|
|
}
|
|
}
|
|
|
|
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::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);
|
|
}
|