mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-24 08:29:39 +00:00
f0f85eab04
*NOTE* In a recent version of posix, they added the restrict keyword to the arguments for this function. From some spelunking it seems that on some platforms, the call has restrict on its arguments and others it does not. Thus I left off the restrict keyword from the function prototype in the comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185501 91177308-0d34-0410-b5e6-96231b3b80d8
651 lines
17 KiB
C++
651 lines
17 KiB
C++
//===-- 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",
|
|
"_ZdlPv",
|
|
"_Znaj",
|
|
"_ZnajRKSt9nothrow_t",
|
|
"_Znam",
|
|
"_ZnamRKSt9nothrow_t",
|
|
"_Znwj",
|
|
"_ZnwjRKSt9nothrow_t",
|
|
"_Znwm",
|
|
"_ZnwmRKSt9nothrow_t",
|
|
"__cxa_atexit",
|
|
"__cxa_guard_abort",
|
|
"__cxa_guard_acquire",
|
|
"__cxa_guard_release",
|
|
"__isoc99_scanf",
|
|
"__isoc99_sscanf",
|
|
"__memcpy_chk",
|
|
"__sqrt_finite",
|
|
"__sqrtf_finite",
|
|
"__sqrtl_finite",
|
|
"__strdup",
|
|
"__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",
|
|
"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",
|
|
"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"
|
|
};
|
|
|
|
/// 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::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.getOS() != Triple::Linux) {
|
|
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));
|
|
}
|