diff options
Diffstat (limited to 'lib/Target/TargetLibraryInfo.cpp')
| -rw-r--r-- | lib/Target/TargetLibraryInfo.cpp | 753 |
1 files changed, 0 insertions, 753 deletions
diff --git a/lib/Target/TargetLibraryInfo.cpp b/lib/Target/TargetLibraryInfo.cpp deleted file mode 100644 index bca56b5..0000000 --- a/lib/Target/TargetLibraryInfo.cpp +++ /dev/null @@ -1,753 +0,0 @@ -//===-- TargetLibraryInfo.cpp - Runtime library information ----------------==// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements the TargetLibraryInfo class. -// -//===----------------------------------------------------------------------===// - -#include "llvm/Target/TargetLibraryInfo.h" -#include "llvm/ADT/Triple.h" -using namespace llvm; - -// Register the default implementation. -INITIALIZE_PASS(TargetLibraryInfo, "targetlibinfo", - "Target Library Information", false, true) -char TargetLibraryInfo::ID = 0; - -void TargetLibraryInfo::anchor() { } - -const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = - { - "_IO_getc", - "_IO_putc", - "_ZdaPv", - "_ZdaPvRKSt9nothrow_t", - "_ZdaPvj", - "_ZdaPvm", - "_ZdlPv", - "_ZdlPvRKSt9nothrow_t", - "_ZdlPvj", - "_ZdlPvm", - "_Znaj", - "_ZnajRKSt9nothrow_t", - "_Znam", - "_ZnamRKSt9nothrow_t", - "_Znwj", - "_ZnwjRKSt9nothrow_t", - "_Znwm", - "_ZnwmRKSt9nothrow_t", - "__cospi", - "__cospif", - "__cxa_atexit", - "__cxa_guard_abort", - "__cxa_guard_acquire", - "__cxa_guard_release", - "__isoc99_scanf", - "__isoc99_sscanf", - "__memcpy_chk", - "__memmove_chk", - "__memset_chk", - "__sincospi_stret", - "__sincospif_stret", - "__sinpi", - "__sinpif", - "__sqrt_finite", - "__sqrtf_finite", - "__sqrtl_finite", - "__stpcpy_chk", - "__stpncpy_chk", - "__strcpy_chk", - "__strdup", - "__strncpy_chk", - "__strndup", - "__strtok_r", - "abs", - "access", - "acos", - "acosf", - "acosh", - "acoshf", - "acoshl", - "acosl", - "asin", - "asinf", - "asinh", - "asinhf", - "asinhl", - "asinl", - "atan", - "atan2", - "atan2f", - "atan2l", - "atanf", - "atanh", - "atanhf", - "atanhl", - "atanl", - "atof", - "atoi", - "atol", - "atoll", - "bcmp", - "bcopy", - "bzero", - "calloc", - "cbrt", - "cbrtf", - "cbrtl", - "ceil", - "ceilf", - "ceill", - "chmod", - "chown", - "clearerr", - "closedir", - "copysign", - "copysignf", - "copysignl", - "cos", - "cosf", - "cosh", - "coshf", - "coshl", - "cosl", - "ctermid", - "exp", - "exp10", - "exp10f", - "exp10l", - "exp2", - "exp2f", - "exp2l", - "expf", - "expl", - "expm1", - "expm1f", - "expm1l", - "fabs", - "fabsf", - "fabsl", - "fclose", - "fdopen", - "feof", - "ferror", - "fflush", - "ffs", - "ffsl", - "ffsll", - "fgetc", - "fgetpos", - "fgets", - "fileno", - "fiprintf", - "flockfile", - "floor", - "floorf", - "floorl", - "fmax", - "fmaxf", - "fmaxl", - "fmin", - "fminf", - "fminl", - "fmod", - "fmodf", - "fmodl", - "fopen", - "fopen64", - "fprintf", - "fputc", - "fputs", - "fread", - "free", - "frexp", - "frexpf", - "frexpl", - "fscanf", - "fseek", - "fseeko", - "fseeko64", - "fsetpos", - "fstat", - "fstat64", - "fstatvfs", - "fstatvfs64", - "ftell", - "ftello", - "ftello64", - "ftrylockfile", - "funlockfile", - "fwrite", - "getc", - "getc_unlocked", - "getchar", - "getenv", - "getitimer", - "getlogin_r", - "getpwnam", - "gets", - "gettimeofday", - "htonl", - "htons", - "iprintf", - "isascii", - "isdigit", - "labs", - "lchown", - "ldexp", - "ldexpf", - "ldexpl", - "llabs", - "log", - "log10", - "log10f", - "log10l", - "log1p", - "log1pf", - "log1pl", - "log2", - "log2f", - "log2l", - "logb", - "logbf", - "logbl", - "logf", - "logl", - "lstat", - "lstat64", - "malloc", - "memalign", - "memccpy", - "memchr", - "memcmp", - "memcpy", - "memmove", - "memrchr", - "memset", - "memset_pattern16", - "mkdir", - "mktime", - "modf", - "modff", - "modfl", - "nearbyint", - "nearbyintf", - "nearbyintl", - "ntohl", - "ntohs", - "open", - "open64", - "opendir", - "pclose", - "perror", - "popen", - "posix_memalign", - "pow", - "powf", - "powl", - "pread", - "printf", - "putc", - "putchar", - "puts", - "pwrite", - "qsort", - "read", - "readlink", - "realloc", - "reallocf", - "realpath", - "remove", - "rename", - "rewind", - "rint", - "rintf", - "rintl", - "rmdir", - "round", - "roundf", - "roundl", - "scanf", - "setbuf", - "setitimer", - "setvbuf", - "sin", - "sinf", - "sinh", - "sinhf", - "sinhl", - "sinl", - "siprintf", - "snprintf", - "sprintf", - "sqrt", - "sqrtf", - "sqrtl", - "sscanf", - "stat", - "stat64", - "statvfs", - "statvfs64", - "stpcpy", - "stpncpy", - "strcasecmp", - "strcat", - "strchr", - "strcmp", - "strcoll", - "strcpy", - "strcspn", - "strdup", - "strlen", - "strncasecmp", - "strncat", - "strncmp", - "strncpy", - "strndup", - "strnlen", - "strpbrk", - "strrchr", - "strspn", - "strstr", - "strtod", - "strtof", - "strtok", - "strtok_r", - "strtol", - "strtold", - "strtoll", - "strtoul", - "strtoull", - "strxfrm", - "system", - "tan", - "tanf", - "tanh", - "tanhf", - "tanhl", - "tanl", - "times", - "tmpfile", - "tmpfile64", - "toascii", - "trunc", - "truncf", - "truncl", - "uname", - "ungetc", - "unlink", - "unsetenv", - "utime", - "utimes", - "valloc", - "vfprintf", - "vfscanf", - "vprintf", - "vscanf", - "vsnprintf", - "vsprintf", - "vsscanf", - "write" - }; - -static bool hasSinCosPiStret(const Triple &T) { - // Only Darwin variants have _stret versions of combined trig functions. - if (!T.isOSDarwin()) - return false; - - // The ABI is rather complicated on x86, so don't do anything special there. - if (T.getArch() == Triple::x86) - return false; - - if (T.isMacOSX() && T.isMacOSXVersionLT(10, 9)) - return false; - - if (T.isiOS() && T.isOSVersionLT(7, 0)) - return false; - - return true; -} - -/// 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 - - // There are no library implementations of mempcy and memset for r600 and - // these can be difficult to lower in the backend. - if (T.getArch() == Triple::r600) { - TLI.setUnavailable(LibFunc::memcpy); - TLI.setUnavailable(LibFunc::memset); - TLI.setUnavailable(LibFunc::memset_pattern16); - return; - } - - // 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 (!hasSinCosPiStret(T)) { - TLI.setUnavailable(LibFunc::sinpi); - TLI.setUnavailable(LibFunc::sinpif); - TLI.setUnavailable(LibFunc::cospi); - TLI.setUnavailable(LibFunc::cospif); - TLI.setUnavailable(LibFunc::sincospi_stret); - TLI.setUnavailable(LibFunc::sincospif_stret); - } - - 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.isOSWindows() && !T.isOSCygMing()) { - // 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::fmaxl); - TLI.setUnavailable(LibFunc::fminl); - TLI.setUnavailable(LibFunc::fmodl); - TLI.setUnavailable(LibFunc::frexpl); - TLI.setUnavailable(LibFunc::ldexpf); - TLI.setUnavailable(LibFunc::ldexpl); - 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::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::fminf); - TLI.setUnavailable(LibFunc::fmaxf); - 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); - } - - switch (T.getOS()) { - case Triple::MacOSX: - // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0 - // and their names are __exp10 and __exp10f. exp10l is not available on - // OS X or iOS. - TLI.setUnavailable(LibFunc::exp10l); - if (T.isMacOSXVersionLT(10, 9)) { - TLI.setUnavailable(LibFunc::exp10); - TLI.setUnavailable(LibFunc::exp10f); - } else { - TLI.setAvailableWithName(LibFunc::exp10, "__exp10"); - TLI.setAvailableWithName(LibFunc::exp10f, "__exp10f"); - } - break; - case Triple::IOS: - TLI.setUnavailable(LibFunc::exp10l); - if (T.isOSVersionLT(7, 0)) { - TLI.setUnavailable(LibFunc::exp10); - TLI.setUnavailable(LibFunc::exp10f); - } else { - TLI.setAvailableWithName(LibFunc::exp10, "__exp10"); - TLI.setAvailableWithName(LibFunc::exp10f, "__exp10f"); - } - break; - case Triple::Linux: - // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely - // buggy prior to glibc version 2.18. Until this version is widely deployed - // or we have a reasonable detection strategy, we cannot use exp10 reliably - // on Linux. - // - // Fall through to disable all of them. - default: - TLI.setUnavailable(LibFunc::exp10); - TLI.setUnavailable(LibFunc::exp10f); - TLI.setUnavailable(LibFunc::exp10l); - } - - // 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); - } -} - - -TargetLibraryInfo::TargetLibraryInfo() : ImmutablePass(ID) { - // Default to everything being available. - memset(AvailableArray, -1, sizeof(AvailableArray)); - - initialize(*this, Triple(), StandardNames); -} - -TargetLibraryInfo::TargetLibraryInfo(const Triple &T) : ImmutablePass(ID) { - // Default to everything being available. - memset(AvailableArray, -1, sizeof(AvailableArray)); - - initialize(*this, T, StandardNames); -} - -TargetLibraryInfo::TargetLibraryInfo(const TargetLibraryInfo &TLI) - : ImmutablePass(ID) { - memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray)); - CustomNames = TLI.CustomNames; -} - -namespace { -struct StringComparator { - /// Compare two strings and return true if LHS is lexicographically less than - /// RHS. Requires that RHS doesn't contain any zero bytes. - bool operator()(const char *LHS, StringRef RHS) const { - // Compare prefixes with strncmp. If prefixes match we know that LHS is - // greater or equal to RHS as RHS can't contain any '\0'. - return std::strncmp(LHS, RHS.data(), RHS.size()) < 0; - } - - // Provided for compatibility with MSVC's debug mode. - bool operator()(StringRef LHS, const char *RHS) const { return LHS < RHS; } - bool operator()(StringRef LHS, StringRef RHS) const { return LHS < RHS; } - bool operator()(const char *LHS, const char *RHS) const { - return std::strcmp(LHS, RHS) < 0; - } -}; -} - -bool TargetLibraryInfo::getLibFunc(StringRef funcName, - LibFunc::Func &F) const { - const char **Start = &StandardNames[0]; - const char **End = &StandardNames[LibFunc::NumLibFuncs]; - - // Filter out empty names and names containing null bytes, those can't be in - // our table. - if (funcName.empty() || funcName.find('\0') != StringRef::npos) - return false; - - // Check for \01 prefix that is used to mangle __asm declarations and - // strip it if present. - if (funcName.front() == '\01') - funcName = funcName.substr(1); - const char **I = std::lower_bound(Start, End, funcName, StringComparator()); - if (I != End && *I == funcName) { - F = (LibFunc::Func)(I - Start); - return true; - } - return false; -} - -/// disableAllFunctions - This disables all builtins, which is used for options -/// like -fno-builtin. -void TargetLibraryInfo::disableAllFunctions() { - memset(AvailableArray, 0, sizeof(AvailableArray)); -} |