/// initialize - Initialize the set of available library functions based on the
/// specified target triple.  This should be carefully written so that a missing
/// target triple gets a sane set of defaults.
static void initialize(TargetLibraryInfo &TLI, const Triple &T) {
  initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry());

  
  // memset_pattern16 is only available on iOS 3.0 and Mac OS/X 10.5 and later.
  if (T.isMacOSX()) {
    if (T.isMacOSXVersionLT(10, 5))
      TLI.setUnavailable(LibFunc::memset_pattern16);
  } else if (T.getOS() == Triple::IOS) {
    if (T.isOSVersionLT(3, 0))
      TLI.setUnavailable(LibFunc::memset_pattern16);
  } else {
    TLI.setUnavailable(LibFunc::memset_pattern16);
  }

  if (T.isMacOSX() && T.getArch() == Triple::x86 &&
      !T.isMacOSXVersionLT(10, 7)) {
    // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
    // we don't care about) have two versions; on recent OSX, the one we want
    // has a $UNIX2003 suffix. The two implementations are identical except
    // for the return value in some edge cases.  However, we don't want to
    // generate code that depends on the old symbols.
    TLI.setAvailableWithName(LibFunc::fwrite, "fwrite$UNIX2003");
    TLI.setAvailableWithName(LibFunc::fputs, "fputs$UNIX2003");
  }

  // iprintf and friends are only available on XCore and TCE.
  if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) {
    TLI.setUnavailable(LibFunc::iprintf);
    TLI.setUnavailable(LibFunc::siprintf);
    TLI.setUnavailable(LibFunc::fiprintf);
  }
}
Ejemplo n.º 2
0
/// initialize - Initialize the set of available library functions based on the
/// specified target triple.  This should be carefully written so that a missing
/// target triple gets a sane set of defaults.
static void initialize(TargetLibraryInfo &TLI, const Triple &T) {
  initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry());

  
  // memset_pattern16 is only available on iOS 3.0 and Mac OS/X 10.5 and later.
  if (T.getOS() != Triple::Darwin || T.getDarwinMajorNumber() < 9)
    TLI.setUnavailable(LibFunc::memset_pattern16);

  // iprintf and friends are only available on XCore.
  if (T.getArch() != Triple::xcore) {
    TLI.setUnavailable(LibFunc::iprintf);
    TLI.setUnavailable(LibFunc::siprintf);
    TLI.setUnavailable(LibFunc::fiprintf);
  }
}
Ejemplo n.º 3
0
void llvmutil_addtargetspecificpasses(PassManagerBase * fpm, TargetMachine * TM) {
    TargetLibraryInfo * TLI = new TargetLibraryInfo(Triple(TM->getTargetTriple()));
#if defined(TERRA_ENABLE_CUDA) && defined(__APPLE__)
    //currently there isn't a seperate pathway for optimization when code will be running on CUDA
    //so we need to avoid generating functions that don't exist there like memset_pattern16 for all code
    //we only do this if cuda is enabled on OSX where the problem occurs to avoid slowing down other code
    TLI->setUnavailable(LibFunc::memset_pattern16);
#endif
    fpm->add(TLI);
    DataLayout * TD = new DataLayout(*TM->getDataLayout());
#if LLVM_VERSION <= 34
    fpm->add(TD);
#else
    fpm->add(new DataLayoutPass(*TD));
#endif
    
#if LLVM_VERSION == 32
    fpm->add(new TargetTransformInfo(TM->getScalarTargetTransformInfo(),
                                     TM->getVectorTargetTransformInfo()));
#elif LLVM_VERSION >= 33
    TM->addAnalysisPasses(*fpm);
#endif
}
Ejemplo n.º 4
0
/// initialize - Initialize the set of available library functions based on the
/// specified target triple.  This should be carefully written so that a missing
/// target triple gets a sane set of defaults.
static void initialize(TargetLibraryInfo &TLI, const Triple &T,
                       const char **StandardNames) {
  initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry());

#ifndef NDEBUG
  // Verify that the StandardNames array is in alphabetical order.
  for (unsigned F = 1; F < LibFunc::NumLibFuncs; ++F) {
    if (strcmp(StandardNames[F-1], StandardNames[F]) >= 0)
      llvm_unreachable("TargetLibraryInfo function names must be sorted");
  }
#endif // !NDEBUG
  
  // memset_pattern16 is only available on iOS 3.0 and Mac OS/X 10.5 and later.
  if (T.isMacOSX()) {
    if (T.isMacOSXVersionLT(10, 5))
      TLI.setUnavailable(LibFunc::memset_pattern16);
  } else if (T.getOS() == Triple::IOS) {
    if (T.isOSVersionLT(3, 0))
      TLI.setUnavailable(LibFunc::memset_pattern16);
  } else {
    TLI.setUnavailable(LibFunc::memset_pattern16);
  }

  if (T.isMacOSX() && T.getArch() == Triple::x86 &&
      !T.isMacOSXVersionLT(10, 7)) {
    // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
    // we don't care about) have two versions; on recent OSX, the one we want
    // has a $UNIX2003 suffix. The two implementations are identical except
    // for the return value in some edge cases.  However, we don't want to
    // generate code that depends on the old symbols.
    TLI.setAvailableWithName(LibFunc::fwrite, "fwrite$UNIX2003");
    TLI.setAvailableWithName(LibFunc::fputs, "fputs$UNIX2003");
  }

  // iprintf and friends are only available on XCore and TCE.
  if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) {
    TLI.setUnavailable(LibFunc::iprintf);
    TLI.setUnavailable(LibFunc::siprintf);
    TLI.setUnavailable(LibFunc::fiprintf);
  }

  if (T.getOS() == Triple::Win32) {
    // Win32 does not support long double
    TLI.setUnavailable(LibFunc::acosl);
    TLI.setUnavailable(LibFunc::asinl);
    TLI.setUnavailable(LibFunc::atanl);
    TLI.setUnavailable(LibFunc::atan2l);
    TLI.setUnavailable(LibFunc::ceill);
    TLI.setUnavailable(LibFunc::copysignl);
    TLI.setUnavailable(LibFunc::cosl);
    TLI.setUnavailable(LibFunc::coshl);
    TLI.setUnavailable(LibFunc::expl);
    TLI.setUnavailable(LibFunc::fabsf); // Win32 and Win64 both lack fabsf
    TLI.setUnavailable(LibFunc::fabsl);
    TLI.setUnavailable(LibFunc::floorl);
    TLI.setUnavailable(LibFunc::fmodl);
    TLI.setUnavailable(LibFunc::logl);
    TLI.setUnavailable(LibFunc::powl);
    TLI.setUnavailable(LibFunc::sinl);
    TLI.setUnavailable(LibFunc::sinhl);
    TLI.setUnavailable(LibFunc::sqrtl);
    TLI.setUnavailable(LibFunc::tanl);
    TLI.setUnavailable(LibFunc::tanhl);

    // Win32 only has C89 math
    TLI.setUnavailable(LibFunc::acosh);
    TLI.setUnavailable(LibFunc::acoshf);
    TLI.setUnavailable(LibFunc::acoshl);
    TLI.setUnavailable(LibFunc::asinh);
    TLI.setUnavailable(LibFunc::asinhf);
    TLI.setUnavailable(LibFunc::asinhl);
    TLI.setUnavailable(LibFunc::atanh);
    TLI.setUnavailable(LibFunc::atanhf);
    TLI.setUnavailable(LibFunc::atanhl);
    TLI.setUnavailable(LibFunc::cbrt);
    TLI.setUnavailable(LibFunc::cbrtf);
    TLI.setUnavailable(LibFunc::cbrtl);
    TLI.setUnavailable(LibFunc::exp10);
    TLI.setUnavailable(LibFunc::exp10f);
    TLI.setUnavailable(LibFunc::exp10l);
    TLI.setUnavailable(LibFunc::exp2);
    TLI.setUnavailable(LibFunc::exp2f);
    TLI.setUnavailable(LibFunc::exp2l);
    TLI.setUnavailable(LibFunc::expm1);
    TLI.setUnavailable(LibFunc::expm1f);
    TLI.setUnavailable(LibFunc::expm1l);
    TLI.setUnavailable(LibFunc::log2);
    TLI.setUnavailable(LibFunc::log2f);
    TLI.setUnavailable(LibFunc::log2l);
    TLI.setUnavailable(LibFunc::log1p);
    TLI.setUnavailable(LibFunc::log1pf);
    TLI.setUnavailable(LibFunc::log1pl);
    TLI.setUnavailable(LibFunc::logb);
    TLI.setUnavailable(LibFunc::logbf);
    TLI.setUnavailable(LibFunc::logbl);
    TLI.setUnavailable(LibFunc::nearbyint);
    TLI.setUnavailable(LibFunc::nearbyintf);
    TLI.setUnavailable(LibFunc::nearbyintl);
    TLI.setUnavailable(LibFunc::rint);
    TLI.setUnavailable(LibFunc::rintf);
    TLI.setUnavailable(LibFunc::rintl);
    TLI.setUnavailable(LibFunc::round);
    TLI.setUnavailable(LibFunc::roundf);
    TLI.setUnavailable(LibFunc::roundl);
    TLI.setUnavailable(LibFunc::trunc);
    TLI.setUnavailable(LibFunc::truncf);
    TLI.setUnavailable(LibFunc::truncl);

    // Win32 provides some C99 math with mangled names
    TLI.setAvailableWithName(LibFunc::copysign, "_copysign");

    if (T.getArch() == Triple::x86) {
      // Win32 on x86 implements single-precision math functions as macros
      TLI.setUnavailable(LibFunc::acosf);
      TLI.setUnavailable(LibFunc::asinf);
      TLI.setUnavailable(LibFunc::atanf);
      TLI.setUnavailable(LibFunc::atan2f);
      TLI.setUnavailable(LibFunc::ceilf);
      TLI.setUnavailable(LibFunc::copysignf);
      TLI.setUnavailable(LibFunc::cosf);
      TLI.setUnavailable(LibFunc::coshf);
      TLI.setUnavailable(LibFunc::expf);
      TLI.setUnavailable(LibFunc::floorf);
      TLI.setUnavailable(LibFunc::fmodf);
      TLI.setUnavailable(LibFunc::logf);
      TLI.setUnavailable(LibFunc::powf);
      TLI.setUnavailable(LibFunc::sinf);
      TLI.setUnavailable(LibFunc::sinhf);
      TLI.setUnavailable(LibFunc::sqrtf);
      TLI.setUnavailable(LibFunc::tanf);
      TLI.setUnavailable(LibFunc::tanhf);
    }
  }
}
Ejemplo n.º 5
0
/// initialize - Initialize the set of available library functions based on the
/// specified target triple.  This should be carefully written so that a missing
/// target triple gets a sane set of defaults.
static void initialize(TargetLibraryInfo &TLI, const Triple &T,
                       const char **StandardNames) {
  initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry());

#ifndef NDEBUG
  // Verify that the StandardNames array is in alphabetical order.
  for (unsigned F = 1; F < LibFunc::NumLibFuncs; ++F) {
    if (strcmp(StandardNames[F-1], StandardNames[F]) >= 0)
      llvm_unreachable("TargetLibraryInfo function names must be sorted");
  }
#endif // !NDEBUG
  
  // memset_pattern16 is only available on iOS 3.0 and Mac OS/X 10.5 and later.
  if (T.isMacOSX()) {
    if (T.isMacOSXVersionLT(10, 5))
      TLI.setUnavailable(LibFunc::memset_pattern16);
  } else if (T.isiOS()) {
    if (T.isOSVersionLT(3, 0))
      TLI.setUnavailable(LibFunc::memset_pattern16);
  } else {
    TLI.setUnavailable(LibFunc::memset_pattern16);
  }

  if (T.isMacOSX() && T.getArch() == Triple::x86 &&
      !T.isMacOSXVersionLT(10, 7)) {
    // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
    // we don't care about) have two versions; on recent OSX, the one we want
    // has a $UNIX2003 suffix. The two implementations are identical except
    // for the return value in some edge cases.  However, we don't want to
    // generate code that depends on the old symbols.
    TLI.setAvailableWithName(LibFunc::fwrite, "fwrite$UNIX2003");
    TLI.setAvailableWithName(LibFunc::fputs, "fputs$UNIX2003");
  }

  // iprintf and friends are only available on XCore and TCE.
  if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) {
    TLI.setUnavailable(LibFunc::iprintf);
    TLI.setUnavailable(LibFunc::siprintf);
    TLI.setUnavailable(LibFunc::fiprintf);
  }

  if (T.getOS() == Triple::Win32) {
    // Win32 does not support long double
    TLI.setUnavailable(LibFunc::acosl);
    TLI.setUnavailable(LibFunc::asinl);
    TLI.setUnavailable(LibFunc::atanl);
    TLI.setUnavailable(LibFunc::atan2l);
    TLI.setUnavailable(LibFunc::ceill);
    TLI.setUnavailable(LibFunc::copysignl);
    TLI.setUnavailable(LibFunc::cosl);
    TLI.setUnavailable(LibFunc::coshl);
    TLI.setUnavailable(LibFunc::expl);
    TLI.setUnavailable(LibFunc::fabsf); // Win32 and Win64 both lack fabsf
    TLI.setUnavailable(LibFunc::fabsl);
    TLI.setUnavailable(LibFunc::floorl);
    TLI.setUnavailable(LibFunc::fmodl);
    TLI.setUnavailable(LibFunc::frexpl);
    TLI.setUnavailable(LibFunc::logl);
    TLI.setUnavailable(LibFunc::modfl);
    TLI.setUnavailable(LibFunc::powl);
    TLI.setUnavailable(LibFunc::sinl);
    TLI.setUnavailable(LibFunc::sinhl);
    TLI.setUnavailable(LibFunc::sqrtl);
    TLI.setUnavailable(LibFunc::tanl);
    TLI.setUnavailable(LibFunc::tanhl);

    // Win32 only has C89 math
    TLI.setUnavailable(LibFunc::acosh);
    TLI.setUnavailable(LibFunc::acoshf);
    TLI.setUnavailable(LibFunc::acoshl);
    TLI.setUnavailable(LibFunc::asinh);
    TLI.setUnavailable(LibFunc::asinhf);
    TLI.setUnavailable(LibFunc::asinhl);
    TLI.setUnavailable(LibFunc::atanh);
    TLI.setUnavailable(LibFunc::atanhf);
    TLI.setUnavailable(LibFunc::atanhl);
    TLI.setUnavailable(LibFunc::cbrt);
    TLI.setUnavailable(LibFunc::cbrtf);
    TLI.setUnavailable(LibFunc::cbrtl);
    TLI.setUnavailable(LibFunc::exp10);
    TLI.setUnavailable(LibFunc::exp10f);
    TLI.setUnavailable(LibFunc::exp10l);
    TLI.setUnavailable(LibFunc::exp2);
    TLI.setUnavailable(LibFunc::exp2f);
    TLI.setUnavailable(LibFunc::exp2l);
    TLI.setUnavailable(LibFunc::expm1);
    TLI.setUnavailable(LibFunc::expm1f);
    TLI.setUnavailable(LibFunc::expm1l);
    TLI.setUnavailable(LibFunc::log2);
    TLI.setUnavailable(LibFunc::log2f);
    TLI.setUnavailable(LibFunc::log2l);
    TLI.setUnavailable(LibFunc::log1p);
    TLI.setUnavailable(LibFunc::log1pf);
    TLI.setUnavailable(LibFunc::log1pl);
    TLI.setUnavailable(LibFunc::logb);
    TLI.setUnavailable(LibFunc::logbf);
    TLI.setUnavailable(LibFunc::logbl);
    TLI.setUnavailable(LibFunc::nearbyint);
    TLI.setUnavailable(LibFunc::nearbyintf);
    TLI.setUnavailable(LibFunc::nearbyintl);
    TLI.setUnavailable(LibFunc::rint);
    TLI.setUnavailable(LibFunc::rintf);
    TLI.setUnavailable(LibFunc::rintl);
    TLI.setUnavailable(LibFunc::round);
    TLI.setUnavailable(LibFunc::roundf);
    TLI.setUnavailable(LibFunc::roundl);
    TLI.setUnavailable(LibFunc::trunc);
    TLI.setUnavailable(LibFunc::truncf);
    TLI.setUnavailable(LibFunc::truncl);

    // Win32 provides some C99 math with mangled names
    TLI.setAvailableWithName(LibFunc::copysign, "_copysign");

    if (T.getArch() == Triple::x86) {
      // Win32 on x86 implements single-precision math functions as macros
      TLI.setUnavailable(LibFunc::acosf);
      TLI.setUnavailable(LibFunc::asinf);
      TLI.setUnavailable(LibFunc::atanf);
      TLI.setUnavailable(LibFunc::atan2f);
      TLI.setUnavailable(LibFunc::ceilf);
      TLI.setUnavailable(LibFunc::copysignf);
      TLI.setUnavailable(LibFunc::cosf);
      TLI.setUnavailable(LibFunc::coshf);
      TLI.setUnavailable(LibFunc::expf);
      TLI.setUnavailable(LibFunc::floorf);
      TLI.setUnavailable(LibFunc::fmodf);
      TLI.setUnavailable(LibFunc::logf);
      TLI.setUnavailable(LibFunc::powf);
      TLI.setUnavailable(LibFunc::sinf);
      TLI.setUnavailable(LibFunc::sinhf);
      TLI.setUnavailable(LibFunc::sqrtf);
      TLI.setUnavailable(LibFunc::tanf);
      TLI.setUnavailable(LibFunc::tanhf);
    }

    // Win32 does *not* provide provide these functions, but they are
    // generally available on POSIX-compliant systems:
    TLI.setUnavailable(LibFunc::access);
    TLI.setUnavailable(LibFunc::bcmp);
    TLI.setUnavailable(LibFunc::bcopy);
    TLI.setUnavailable(LibFunc::bzero);
    TLI.setUnavailable(LibFunc::chmod);
    TLI.setUnavailable(LibFunc::chown);
    TLI.setUnavailable(LibFunc::closedir);
    TLI.setUnavailable(LibFunc::ctermid);
    TLI.setUnavailable(LibFunc::fdopen);
    TLI.setUnavailable(LibFunc::ffs);
    TLI.setUnavailable(LibFunc::fileno);
    TLI.setUnavailable(LibFunc::flockfile);
    TLI.setUnavailable(LibFunc::fseeko);
    TLI.setUnavailable(LibFunc::fstat);
    TLI.setUnavailable(LibFunc::fstatvfs);
    TLI.setUnavailable(LibFunc::ftello);
    TLI.setUnavailable(LibFunc::ftrylockfile);
    TLI.setUnavailable(LibFunc::funlockfile);
    TLI.setUnavailable(LibFunc::getc_unlocked);
    TLI.setUnavailable(LibFunc::getitimer);
    TLI.setUnavailable(LibFunc::getlogin_r);
    TLI.setUnavailable(LibFunc::getpwnam);
    TLI.setUnavailable(LibFunc::gettimeofday);
    TLI.setUnavailable(LibFunc::htonl);
    TLI.setUnavailable(LibFunc::htons);
    TLI.setUnavailable(LibFunc::lchown);
    TLI.setUnavailable(LibFunc::lstat);
    TLI.setUnavailable(LibFunc::memccpy);
    TLI.setUnavailable(LibFunc::mkdir);
    TLI.setUnavailable(LibFunc::ntohl);
    TLI.setUnavailable(LibFunc::ntohs);
    TLI.setUnavailable(LibFunc::open);
    TLI.setUnavailable(LibFunc::opendir);
    TLI.setUnavailable(LibFunc::pclose);
    TLI.setUnavailable(LibFunc::popen);
    TLI.setUnavailable(LibFunc::pread);
    TLI.setUnavailable(LibFunc::pwrite);
    TLI.setUnavailable(LibFunc::read);
    TLI.setUnavailable(LibFunc::readlink);
    TLI.setUnavailable(LibFunc::realpath);
    TLI.setUnavailable(LibFunc::rmdir);
    TLI.setUnavailable(LibFunc::setitimer);
    TLI.setUnavailable(LibFunc::stat);
    TLI.setUnavailable(LibFunc::statvfs);
    TLI.setUnavailable(LibFunc::stpcpy);
    TLI.setUnavailable(LibFunc::stpncpy);
    TLI.setUnavailable(LibFunc::strcasecmp);
    TLI.setUnavailable(LibFunc::strncasecmp);
    TLI.setUnavailable(LibFunc::times);
    TLI.setUnavailable(LibFunc::uname);
    TLI.setUnavailable(LibFunc::unlink);
    TLI.setUnavailable(LibFunc::unsetenv);
    TLI.setUnavailable(LibFunc::utime);
    TLI.setUnavailable(LibFunc::utimes);
    TLI.setUnavailable(LibFunc::write);

    // Win32 does *not* provide provide these functions, but they are
    // specified by C99:
    TLI.setUnavailable(LibFunc::atoll);
    TLI.setUnavailable(LibFunc::frexpf);
    TLI.setUnavailable(LibFunc::llabs);
  }

  // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and
  // Linux (GLIBC):
  // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html
  // http://svn.freebsd.org/base/user/eri/pf45/head/lib/libc/string/ffsl.c
  // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html
  switch (T.getOS()) {
  case Triple::Darwin:
  case Triple::MacOSX:
  case Triple::IOS:
  case Triple::FreeBSD:
  case Triple::Linux:
    break;
  default:
    TLI.setUnavailable(LibFunc::ffsl);
  }

  // ffsll is available on at least FreeBSD and Linux (GLIBC):
  // http://svn.freebsd.org/base/user/eri/pf45/head/lib/libc/string/ffsll.c
  // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html
  switch (T.getOS()) {
  case Triple::FreeBSD:
  case Triple::Linux:
    break;
  default:
    TLI.setUnavailable(LibFunc::ffsll);
  }

  // The following functions are available on at least Linux:
  if (!T.isOSLinux()) {
    TLI.setUnavailable(LibFunc::dunder_strdup);
    TLI.setUnavailable(LibFunc::dunder_strtok_r);
    TLI.setUnavailable(LibFunc::dunder_isoc99_scanf);
    TLI.setUnavailable(LibFunc::dunder_isoc99_sscanf);
    TLI.setUnavailable(LibFunc::under_IO_getc);
    TLI.setUnavailable(LibFunc::under_IO_putc);
    TLI.setUnavailable(LibFunc::memalign);
    TLI.setUnavailable(LibFunc::fopen64);
    TLI.setUnavailable(LibFunc::fseeko64);
    TLI.setUnavailable(LibFunc::fstat64);
    TLI.setUnavailable(LibFunc::fstatvfs64);
    TLI.setUnavailable(LibFunc::ftello64);
    TLI.setUnavailable(LibFunc::lstat64);
    TLI.setUnavailable(LibFunc::open64);
    TLI.setUnavailable(LibFunc::stat64);
    TLI.setUnavailable(LibFunc::statvfs64);
    TLI.setUnavailable(LibFunc::tmpfile64);
  }
}
Ejemplo n.º 6
0
/// initialize - Initialize the set of available library functions based on the
/// specified target triple.  This should be carefully written so that a missing
/// target triple gets a sane set of defaults.
static void initialize(TargetLibraryInfo &TLI, const Triple &T,
                       const char **StandardNames) {
    initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry());

#ifndef NDEBUG
    // Verify that the StandardNames array is in alphabetical order.
    for (unsigned F = 1; F < LibFunc::NumLibFuncs; ++F) {
        if (strcmp(StandardNames[F-1], StandardNames[F]) >= 0)
            llvm_unreachable("TargetLibraryInfo function names must be sorted");
    }
#endif // !NDEBUG

    // memset_pattern16 is only available on iOS 3.0 and Mac OS/X 10.5 and later.
    if (T.isMacOSX()) {
        if (T.isMacOSXVersionLT(10, 5))
            TLI.setUnavailable(LibFunc::memset_pattern16);
    } else if (T.getOS() == Triple::IOS) {
        if (T.isOSVersionLT(3, 0))
            TLI.setUnavailable(LibFunc::memset_pattern16);
    } else {
        TLI.setUnavailable(LibFunc::memset_pattern16);
    }

    if (T.isMacOSX() && T.getArch() == Triple::x86 &&
            !T.isMacOSXVersionLT(10, 7)) {
        // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
        // we don't care about) have two versions; on recent OSX, the one we want
        // has a $UNIX2003 suffix. The two implementations are identical except
        // for the return value in some edge cases.  However, we don't want to
        // generate code that depends on the old symbols.
        TLI.setAvailableWithName(LibFunc::fwrite, "fwrite$UNIX2003");
        TLI.setAvailableWithName(LibFunc::fputs, "fputs$UNIX2003");
    }

    // iprintf and friends are only available on XCore and TCE.
    if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) {
        TLI.setUnavailable(LibFunc::iprintf);
        TLI.setUnavailable(LibFunc::siprintf);
        TLI.setUnavailable(LibFunc::fiprintf);
    }

    if (T.getOS() == Triple::Win32) {
        // Win32 does not support long double
        TLI.setUnavailable(LibFunc::acosl);
        TLI.setUnavailable(LibFunc::asinl);
        TLI.setUnavailable(LibFunc::atanl);
        TLI.setUnavailable(LibFunc::atan2l);
        TLI.setUnavailable(LibFunc::ceill);
        TLI.setUnavailable(LibFunc::copysignl);
        TLI.setUnavailable(LibFunc::cosl);
        TLI.setUnavailable(LibFunc::coshl);
        TLI.setUnavailable(LibFunc::expl);
        TLI.setUnavailable(LibFunc::fabsf); // Win32 and Win64 both lack fabsf
        TLI.setUnavailable(LibFunc::fabsl);
        TLI.setUnavailable(LibFunc::floorl);
        TLI.setUnavailable(LibFunc::fmodl);
        TLI.setUnavailable(LibFunc::logl);
        TLI.setUnavailable(LibFunc::powl);
        TLI.setUnavailable(LibFunc::sinl);
        TLI.setUnavailable(LibFunc::sinhl);
        TLI.setUnavailable(LibFunc::sqrtl);
        TLI.setUnavailable(LibFunc::tanl);
        TLI.setUnavailable(LibFunc::tanhl);

        // Win32 only has C89 math
        TLI.setUnavailable(LibFunc::acosh);
        TLI.setUnavailable(LibFunc::acoshf);
        TLI.setUnavailable(LibFunc::acoshl);
        TLI.setUnavailable(LibFunc::asinh);
        TLI.setUnavailable(LibFunc::asinhf);
        TLI.setUnavailable(LibFunc::asinhl);
        TLI.setUnavailable(LibFunc::atanh);
        TLI.setUnavailable(LibFunc::atanhf);
        TLI.setUnavailable(LibFunc::atanhl);
        TLI.setUnavailable(LibFunc::cbrt);
        TLI.setUnavailable(LibFunc::cbrtf);
        TLI.setUnavailable(LibFunc::cbrtl);
        TLI.setUnavailable(LibFunc::exp10);
        TLI.setUnavailable(LibFunc::exp10f);
        TLI.setUnavailable(LibFunc::exp10l);
        TLI.setUnavailable(LibFunc::exp2);
        TLI.setUnavailable(LibFunc::exp2f);
        TLI.setUnavailable(LibFunc::exp2l);
        TLI.setUnavailable(LibFunc::expm1);
        TLI.setUnavailable(LibFunc::expm1f);
        TLI.setUnavailable(LibFunc::expm1l);
        TLI.setUnavailable(LibFunc::log2);
        TLI.setUnavailable(LibFunc::log2f);
        TLI.setUnavailable(LibFunc::log2l);
        TLI.setUnavailable(LibFunc::log1p);
        TLI.setUnavailable(LibFunc::log1pf);
        TLI.setUnavailable(LibFunc::log1pl);
        TLI.setUnavailable(LibFunc::logb);
        TLI.setUnavailable(LibFunc::logbf);
        TLI.setUnavailable(LibFunc::logbl);
        TLI.setUnavailable(LibFunc::nearbyint);
        TLI.setUnavailable(LibFunc::nearbyintf);
        TLI.setUnavailable(LibFunc::nearbyintl);
        TLI.setUnavailable(LibFunc::rint);
        TLI.setUnavailable(LibFunc::rintf);
        TLI.setUnavailable(LibFunc::rintl);
        TLI.setUnavailable(LibFunc::round);
        TLI.setUnavailable(LibFunc::roundf);
        TLI.setUnavailable(LibFunc::roundl);
        TLI.setUnavailable(LibFunc::trunc);
        TLI.setUnavailable(LibFunc::truncf);
        TLI.setUnavailable(LibFunc::truncl);

        // Win32 provides some C99 math with mangled names
        TLI.setAvailableWithName(LibFunc::copysign, "_copysign");

        if (T.getArch() == Triple::x86) {
            // Win32 on x86 implements single-precision math functions as macros
            TLI.setUnavailable(LibFunc::acosf);
            TLI.setUnavailable(LibFunc::asinf);
            TLI.setUnavailable(LibFunc::atanf);
            TLI.setUnavailable(LibFunc::atan2f);
            TLI.setUnavailable(LibFunc::ceilf);
            TLI.setUnavailable(LibFunc::copysignf);
            TLI.setUnavailable(LibFunc::cosf);
            TLI.setUnavailable(LibFunc::coshf);
            TLI.setUnavailable(LibFunc::expf);
            TLI.setUnavailable(LibFunc::floorf);
            TLI.setUnavailable(LibFunc::fmodf);
            TLI.setUnavailable(LibFunc::logf);
            TLI.setUnavailable(LibFunc::powf);
            TLI.setUnavailable(LibFunc::sinf);
            TLI.setUnavailable(LibFunc::sinhf);
            TLI.setUnavailable(LibFunc::sqrtf);
            TLI.setUnavailable(LibFunc::tanf);
            TLI.setUnavailable(LibFunc::tanhf);
        }

        // Win32 does *not* provide stpcpy.  It is provided on POSIX systems:
        // http://pubs.opengroup.org/onlinepubs/9699919799/functions/stpcpy.html
        TLI.setUnavailable(LibFunc::stpcpy);

        // Win32 does *not* provide ffs.  It is provided on POSIX systems:
        // http://pubs.opengroup.org/onlinepubs/009695399/functions/ffs.html
        TLI.setUnavailable(LibFunc::ffs);

        // Win32 does *not* provide llabs.  It is defined in ISO/IEC 9899:1999,
        // but Visual C++ does not support it.
        TLI.setUnavailable(LibFunc::llabs);
    }

    // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and
    // Linux (GLIBC):
    // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html
    // http://svn.freebsd.org/base/user/eri/pf45/head/lib/libc/string/ffsl.c
    // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html
    switch (T.getOS()) {
    case Triple::Darwin:
    case Triple::MacOSX:
    case Triple::IOS:
    case Triple::FreeBSD:
    case Triple::Linux:
        break;
    default:
        TLI.setUnavailable(LibFunc::ffsl);
    }

    // ffsll is available on at least FreeBSD and Linux (GLIBC):
    // http://svn.freebsd.org/base/user/eri/pf45/head/lib/libc/string/ffsll.c
    // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html
    switch (T.getOS()) {
    case Triple::FreeBSD:
    case Triple::Linux:
        break;
    default:
        TLI.setUnavailable(LibFunc::ffsll);
    }
}