X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FTargetLibraryInfo.cpp;h=6ec0b1f929c8ae3fb8c2d5c2cf8c6459e6e50f45;hb=de04c485787ae207b035a6850e6449495ff8e65d;hp=3a9ace4c52ebaf19130ed5f5f45e5e3349bfff46;hpb=6098c6b56be5a8e3c7ac5273110589f251b03573;p=oota-llvm.git diff --git a/lib/Target/TargetLibraryInfo.cpp b/lib/Target/TargetLibraryInfo.cpp index 3a9ace4c52e..6ec0b1f929c 100644 --- a/lib/Target/TargetLibraryInfo.cpp +++ b/lib/Target/TargetLibraryInfo.cpp @@ -24,8 +24,12 @@ void TargetLibraryInfo::anchor() { } const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = { + "_IO_getc", + "_IO_putc", "_ZdaPv", + "_ZdaPvRKSt9nothrow_t", "_ZdlPv", + "_ZdlPvRKSt9nothrow_t", "_Znaj", "_ZnajRKSt9nothrow_t", "_Znam", @@ -34,12 +38,27 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "_ZnwjRKSt9nothrow_t", "_Znwm", "_ZnwmRKSt9nothrow_t", + "__cospi", + "__cospif", "__cxa_atexit", "__cxa_guard_abort", "__cxa_guard_acquire", "__cxa_guard_release", + "__isoc99_scanf", + "__isoc99_sscanf", "__memcpy_chk", + "__sincospi_stret", + "__sincospif_stret", + "__sinpi", + "__sinpif", + "__sqrt_finite", + "__sqrtf_finite", + "__sqrtl_finite", + "__strdup", + "__strndup", + "__strtok_r", "abs", + "access", "acos", "acosf", "acosh", @@ -61,6 +80,13 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "atanhf", "atanhl", "atanl", + "atof", + "atoi", + "atol", + "atoll", + "bcmp", + "bcopy", + "bzero", "calloc", "cbrt", "cbrtf", @@ -68,6 +94,10 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "ceil", "ceilf", "ceill", + "chmod", + "chown", + "clearerr", + "closedir", "copysign", "copysignf", "copysignl", @@ -77,6 +107,7 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "coshf", "coshl", "cosl", + "ctermid", "exp", "exp10", "exp10f", @@ -92,25 +123,76 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "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", @@ -127,31 +209,64 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "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", @@ -159,18 +274,28 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "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", @@ -182,24 +307,63 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "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", - "valloc" + "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.isMacOSX() && T.getOS() != Triple::IOS) + 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.getOS() == Triple::IOS && 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. @@ -214,18 +378,36 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T, 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. + + // 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.getOS() == Triple::IOS) { + } 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 @@ -244,7 +426,7 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T, TLI.setUnavailable(LibFunc::fiprintf); } - if (T.getOS() == Triple::Win32) { + if (T.isKnownWindowsMSVCEnvironment()) { // Win32 does not support long double TLI.setUnavailable(LibFunc::acosl); TLI.setUnavailable(LibFunc::asinl); @@ -258,8 +440,14 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T, 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); @@ -280,9 +468,6 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T, 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); @@ -326,6 +511,8 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T, 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); @@ -336,19 +523,108 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T, 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 + // 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 llabs. It is defined in ISO/IEC 9899:1999, - // but Visual C++ does not support it. + // 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 @@ -375,6 +651,27 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T, 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); + } } @@ -398,11 +695,40 @@ TargetLibraryInfo::TargetLibraryInfo(const TargetLibraryInfo &TLI) 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]; - const char **I = std::lower_bound(Start, End, funcName); + + // 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;