diff options
Diffstat (limited to 'llvm/lib/Analysis/TargetLibraryInfo.cpp')
| -rw-r--r-- | llvm/lib/Analysis/TargetLibraryInfo.cpp | 1658 |
1 files changed, 1658 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp new file mode 100644 index 000000000000..ef139d3257d2 --- /dev/null +++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp @@ -0,0 +1,1658 @@ +//===-- TargetLibraryInfo.cpp - Runtime library information ----------------==// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file implements the TargetLibraryInfo class. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Analysis/TargetLibraryInfo.h" +#include "llvm/ADT/Triple.h" +#include "llvm/IR/Constants.h" +#include "llvm/Support/CommandLine.h" +using namespace llvm; + +static cl::opt<TargetLibraryInfoImpl::VectorLibrary> ClVectorLibrary( + "vector-library", cl::Hidden, cl::desc("Vector functions library"), + cl::init(TargetLibraryInfoImpl::NoLibrary), + cl::values(clEnumValN(TargetLibraryInfoImpl::NoLibrary, "none", + "No vector functions library"), + clEnumValN(TargetLibraryInfoImpl::Accelerate, "Accelerate", + "Accelerate framework"), + clEnumValN(TargetLibraryInfoImpl::MASSV, "MASSV", + "IBM MASS vector library"), + clEnumValN(TargetLibraryInfoImpl::SVML, "SVML", + "Intel SVML library"))); + +StringRef const TargetLibraryInfoImpl::StandardNames[LibFunc::NumLibFuncs] = { +#define TLI_DEFINE_STRING +#include "llvm/Analysis/TargetLibraryInfo.def" +}; + +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; +} + +static bool hasBcmp(const Triple &TT) { + // Posix removed support from bcmp() in 2001, but the glibc and several + // implementations of the libc still have it. + if (TT.isOSLinux()) + return TT.isGNUEnvironment() || TT.isMusl(); + // Both NetBSD and OpenBSD are planning to remove the function. Windows does + // not have it. + return TT.isOSFreeBSD() || TT.isOSSolaris() || TT.isOSDarwin(); +} + +/// 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(TargetLibraryInfoImpl &TLI, const Triple &T, + ArrayRef<StringRef> StandardNames) { + // Verify that the StandardNames array is in alphabetical order. + assert(std::is_sorted(StandardNames.begin(), StandardNames.end(), + [](StringRef LHS, StringRef RHS) { + return LHS < RHS; + }) && + "TargetLibraryInfoImpl function names must be sorted"); + + // Set IO unlocked variants as unavailable + // Set them as available per system below + TLI.setUnavailable(LibFunc_getchar_unlocked); + TLI.setUnavailable(LibFunc_putc_unlocked); + TLI.setUnavailable(LibFunc_putchar_unlocked); + TLI.setUnavailable(LibFunc_fputc_unlocked); + TLI.setUnavailable(LibFunc_fgetc_unlocked); + TLI.setUnavailable(LibFunc_fread_unlocked); + TLI.setUnavailable(LibFunc_fwrite_unlocked); + TLI.setUnavailable(LibFunc_fputs_unlocked); + TLI.setUnavailable(LibFunc_fgets_unlocked); + + bool ShouldExtI32Param = false, ShouldExtI32Return = false, + ShouldSignExtI32Param = false; + // PowerPC64, Sparc64, SystemZ need signext/zeroext on i32 parameters and + // returns corresponding to C-level ints and unsigned ints. + if (T.isPPC64() || T.getArch() == Triple::sparcv9 || + T.getArch() == Triple::systemz) { + ShouldExtI32Param = true; + ShouldExtI32Return = true; + } + // Mips, on the other hand, needs signext on i32 parameters corresponding + // to both signed and unsigned ints. + if (T.isMIPS()) { + ShouldSignExtI32Param = true; + } + TLI.setShouldExtI32Param(ShouldExtI32Param); + TLI.setShouldExtI32Return(ShouldExtI32Return); + TLI.setShouldSignExtI32Param(ShouldSignExtI32Param); + + if (T.getArch() == Triple::r600 || + T.getArch() == Triple::amdgcn) { + TLI.setUnavailable(LibFunc_ldexp); + TLI.setUnavailable(LibFunc_ldexpf); + TLI.setUnavailable(LibFunc_ldexpl); + TLI.setUnavailable(LibFunc_exp10); + TLI.setUnavailable(LibFunc_exp10f); + TLI.setUnavailable(LibFunc_exp10l); + TLI.setUnavailable(LibFunc_log10); + TLI.setUnavailable(LibFunc_log10f); + TLI.setUnavailable(LibFunc_log10l); + } + + // There are no library implementations of mempcy and memset for AMD gpus and + // these can be difficult to lower in the backend. + if (T.getArch() == Triple::r600 || + T.getArch() == Triple::amdgcn) { + 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. + // All versions of watchOS support it. + if (T.isMacOSX()) { + // available IO unlocked variants on Mac OS X + TLI.setAvailable(LibFunc_getc_unlocked); + TLI.setAvailable(LibFunc_getchar_unlocked); + TLI.setAvailable(LibFunc_putc_unlocked); + TLI.setAvailable(LibFunc_putchar_unlocked); + + 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 if (!T.isWatchOS()) { + 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 (!hasBcmp(T)) + TLI.setUnavailable(LibFunc_bcmp); + + 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, TCE, and Emscripten. + if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce && + T.getOS() != Triple::Emscripten) { + TLI.setUnavailable(LibFunc_iprintf); + TLI.setUnavailable(LibFunc_siprintf); + TLI.setUnavailable(LibFunc_fiprintf); + } + + // __small_printf and friends are only available on Emscripten. + if (T.getOS() != Triple::Emscripten) { + TLI.setUnavailable(LibFunc_small_printf); + TLI.setUnavailable(LibFunc_small_sprintf); + TLI.setUnavailable(LibFunc_small_fprintf); + } + + if (T.isOSWindows() && !T.isOSCygMing()) { + // XXX: The earliest documentation available at the moment is for VS2015/VC19: + // https://docs.microsoft.com/en-us/cpp/c-runtime-library/floating-point-support?view=vs-2015 + // XXX: In order to use an MSVCRT older than VC19, + // the specific library version must be explicit in the target triple, + // e.g., x86_64-pc-windows-msvc18. + bool hasPartialC99 = true; + if (T.isKnownWindowsMSVCEnvironment()) { + unsigned Major, Minor, Micro; + T.getEnvironmentVersion(Major, Minor, Micro); + hasPartialC99 = (Major == 0 || Major >= 19); + } + + // Latest targets support C89 math functions, in part. + bool isARM = (T.getArch() == Triple::aarch64 || + T.getArch() == Triple::arm); + bool hasPartialFloat = (isARM || + T.getArch() == Triple::x86_64); + + // Win32 does not support float C89 math functions, in general. + if (!hasPartialFloat) { + TLI.setUnavailable(LibFunc_acosf); + TLI.setUnavailable(LibFunc_asinf); + TLI.setUnavailable(LibFunc_atan2f); + TLI.setUnavailable(LibFunc_atanf); + TLI.setUnavailable(LibFunc_ceilf); + TLI.setUnavailable(LibFunc_cosf); + TLI.setUnavailable(LibFunc_coshf); + TLI.setUnavailable(LibFunc_expf); + TLI.setUnavailable(LibFunc_floorf); + TLI.setUnavailable(LibFunc_fmodf); + TLI.setUnavailable(LibFunc_log10f); + TLI.setUnavailable(LibFunc_logf); + TLI.setUnavailable(LibFunc_modff); + TLI.setUnavailable(LibFunc_powf); + TLI.setUnavailable(LibFunc_sinf); + TLI.setUnavailable(LibFunc_sinhf); + TLI.setUnavailable(LibFunc_sqrtf); + TLI.setUnavailable(LibFunc_tanf); + TLI.setUnavailable(LibFunc_tanhf); + } + if (!isARM) + TLI.setUnavailable(LibFunc_fabsf); + TLI.setUnavailable(LibFunc_frexpf); + TLI.setUnavailable(LibFunc_ldexpf); + + // Win32 does not support long double C89 math functions. + TLI.setUnavailable(LibFunc_acosl); + TLI.setUnavailable(LibFunc_asinl); + TLI.setUnavailable(LibFunc_atan2l); + TLI.setUnavailable(LibFunc_atanl); + TLI.setUnavailable(LibFunc_ceill); + TLI.setUnavailable(LibFunc_cosl); + TLI.setUnavailable(LibFunc_coshl); + TLI.setUnavailable(LibFunc_expl); + TLI.setUnavailable(LibFunc_fabsl); + TLI.setUnavailable(LibFunc_floorl); + TLI.setUnavailable(LibFunc_fmodl); + TLI.setUnavailable(LibFunc_frexpl); + TLI.setUnavailable(LibFunc_ldexpl); + TLI.setUnavailable(LibFunc_log10l); + 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 does not fully support C99 math functions. + if (!hasPartialC99) { + TLI.setUnavailable(LibFunc_acosh); + TLI.setUnavailable(LibFunc_acoshf); + TLI.setUnavailable(LibFunc_asinh); + TLI.setUnavailable(LibFunc_asinhf); + TLI.setUnavailable(LibFunc_atanh); + TLI.setUnavailable(LibFunc_atanhf); + TLI.setAvailableWithName(LibFunc_cabs, "_cabs"); + TLI.setUnavailable(LibFunc_cabsf); + TLI.setUnavailable(LibFunc_cbrt); + TLI.setUnavailable(LibFunc_cbrtf); + TLI.setAvailableWithName(LibFunc_copysign, "_copysign"); + TLI.setAvailableWithName(LibFunc_copysignf, "_copysignf"); + TLI.setUnavailable(LibFunc_exp2); + TLI.setUnavailable(LibFunc_exp2f); + TLI.setUnavailable(LibFunc_expm1); + TLI.setUnavailable(LibFunc_expm1f); + TLI.setUnavailable(LibFunc_fmax); + TLI.setUnavailable(LibFunc_fmaxf); + TLI.setUnavailable(LibFunc_fmin); + TLI.setUnavailable(LibFunc_fminf); + TLI.setUnavailable(LibFunc_log1p); + TLI.setUnavailable(LibFunc_log1pf); + TLI.setUnavailable(LibFunc_log2); + TLI.setUnavailable(LibFunc_log2f); + TLI.setAvailableWithName(LibFunc_logb, "_logb"); + if (hasPartialFloat) + TLI.setAvailableWithName(LibFunc_logbf, "_logbf"); + else + TLI.setUnavailable(LibFunc_logbf); + TLI.setUnavailable(LibFunc_rint); + TLI.setUnavailable(LibFunc_rintf); + TLI.setUnavailable(LibFunc_round); + TLI.setUnavailable(LibFunc_roundf); + TLI.setUnavailable(LibFunc_trunc); + TLI.setUnavailable(LibFunc_truncf); + } + + // Win32 does not support long double C99 math functions. + TLI.setUnavailable(LibFunc_acoshl); + TLI.setUnavailable(LibFunc_asinhl); + TLI.setUnavailable(LibFunc_atanhl); + TLI.setUnavailable(LibFunc_cabsl); + TLI.setUnavailable(LibFunc_cbrtl); + TLI.setUnavailable(LibFunc_copysignl); + TLI.setUnavailable(LibFunc_exp2l); + TLI.setUnavailable(LibFunc_expm1l); + TLI.setUnavailable(LibFunc_fmaxl); + TLI.setUnavailable(LibFunc_fminl); + TLI.setUnavailable(LibFunc_log1pl); + TLI.setUnavailable(LibFunc_log2l); + TLI.setUnavailable(LibFunc_logbl); + TLI.setUnavailable(LibFunc_nearbyintl); + TLI.setUnavailable(LibFunc_rintl); + TLI.setUnavailable(LibFunc_roundl); + TLI.setUnavailable(LibFunc_truncl); + + // Win32 does not support 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_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); + } + + 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: + case Triple::TvOS: + case Triple::WatchOS: + TLI.setUnavailable(LibFunc_exp10l); + if (!T.isWatchOS() && (T.isOSVersionLT(7, 0) || + (T.isOSVersionLT(9, 0) && + (T.getArch() == Triple::x86 || + T.getArch() == Triple::x86_64)))) { + 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. + LLVM_FALLTHROUGH; + 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/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::TvOS: + case Triple::WatchOS: + 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/head/lib/libc/string/ffsll.c + // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html + switch (T.getOS()) { + case Triple::Darwin: + case Triple::MacOSX: + case Triple::IOS: + case Triple::TvOS: + case Triple::WatchOS: + case Triple::FreeBSD: + case Triple::Linux: + break; + default: + TLI.setUnavailable(LibFunc_ffsll); + } + + // The following functions are available on at least FreeBSD: + // http://svn.freebsd.org/base/head/lib/libc/string/fls.c + // http://svn.freebsd.org/base/head/lib/libc/string/flsl.c + // http://svn.freebsd.org/base/head/lib/libc/string/flsll.c + if (!T.isOSFreeBSD()) { + TLI.setUnavailable(LibFunc_fls); + TLI.setUnavailable(LibFunc_flsl); + TLI.setUnavailable(LibFunc_flsll); + } + + // The following functions are only available on GNU/Linux (using glibc). + // Linux variants without glibc (eg: bionic, musl) may have some subset. + if (!T.isOSLinux() || !T.isGNUEnvironment()) { + 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); + // But, Android and musl have memalign. + if (!T.isAndroid() && !T.isMusl()) + 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); + + // Relaxed math functions are included in math-finite.h on Linux (GLIBC). + TLI.setUnavailable(LibFunc_acos_finite); + TLI.setUnavailable(LibFunc_acosf_finite); + TLI.setUnavailable(LibFunc_acosl_finite); + TLI.setUnavailable(LibFunc_acosh_finite); + TLI.setUnavailable(LibFunc_acoshf_finite); + TLI.setUnavailable(LibFunc_acoshl_finite); + TLI.setUnavailable(LibFunc_asin_finite); + TLI.setUnavailable(LibFunc_asinf_finite); + TLI.setUnavailable(LibFunc_asinl_finite); + TLI.setUnavailable(LibFunc_atan2_finite); + TLI.setUnavailable(LibFunc_atan2f_finite); + TLI.setUnavailable(LibFunc_atan2l_finite); + TLI.setUnavailable(LibFunc_atanh_finite); + TLI.setUnavailable(LibFunc_atanhf_finite); + TLI.setUnavailable(LibFunc_atanhl_finite); + TLI.setUnavailable(LibFunc_cosh_finite); + TLI.setUnavailable(LibFunc_coshf_finite); + TLI.setUnavailable(LibFunc_coshl_finite); + TLI.setUnavailable(LibFunc_exp10_finite); + TLI.setUnavailable(LibFunc_exp10f_finite); + TLI.setUnavailable(LibFunc_exp10l_finite); + TLI.setUnavailable(LibFunc_exp2_finite); + TLI.setUnavailable(LibFunc_exp2f_finite); + TLI.setUnavailable(LibFunc_exp2l_finite); + TLI.setUnavailable(LibFunc_exp_finite); + TLI.setUnavailable(LibFunc_expf_finite); + TLI.setUnavailable(LibFunc_expl_finite); + TLI.setUnavailable(LibFunc_log10_finite); + TLI.setUnavailable(LibFunc_log10f_finite); + TLI.setUnavailable(LibFunc_log10l_finite); + TLI.setUnavailable(LibFunc_log2_finite); + TLI.setUnavailable(LibFunc_log2f_finite); + TLI.setUnavailable(LibFunc_log2l_finite); + TLI.setUnavailable(LibFunc_log_finite); + TLI.setUnavailable(LibFunc_logf_finite); + TLI.setUnavailable(LibFunc_logl_finite); + TLI.setUnavailable(LibFunc_pow_finite); + TLI.setUnavailable(LibFunc_powf_finite); + TLI.setUnavailable(LibFunc_powl_finite); + TLI.setUnavailable(LibFunc_sinh_finite); + TLI.setUnavailable(LibFunc_sinhf_finite); + TLI.setUnavailable(LibFunc_sinhl_finite); + } + + if ((T.isOSLinux() && T.isGNUEnvironment()) || + (T.isAndroid() && !T.isAndroidVersionLT(28))) { + // available IO unlocked variants on GNU/Linux and Android P or later + TLI.setAvailable(LibFunc_getc_unlocked); + TLI.setAvailable(LibFunc_getchar_unlocked); + TLI.setAvailable(LibFunc_putc_unlocked); + TLI.setAvailable(LibFunc_putchar_unlocked); + TLI.setAvailable(LibFunc_fputc_unlocked); + TLI.setAvailable(LibFunc_fgetc_unlocked); + TLI.setAvailable(LibFunc_fread_unlocked); + TLI.setAvailable(LibFunc_fwrite_unlocked); + TLI.setAvailable(LibFunc_fputs_unlocked); + TLI.setAvailable(LibFunc_fgets_unlocked); + } + + // As currently implemented in clang, NVPTX code has no standard library to + // speak of. Headers provide a standard-ish library implementation, but many + // of the signatures are wrong -- for example, many libm functions are not + // extern "C". + // + // libdevice, an IR library provided by nvidia, is linked in by the front-end, + // but only used functions are provided to llvm. Moreover, most of the + // functions in libdevice don't map precisely to standard library functions. + // + // FIXME: Having no standard library prevents e.g. many fastmath + // optimizations, so this situation should be fixed. + if (T.isNVPTX()) { + TLI.disableAllFunctions(); + TLI.setAvailable(LibFunc_nvvm_reflect); + } else { + TLI.setUnavailable(LibFunc_nvvm_reflect); + } + + TLI.addVectorizableFunctionsFromVecLib(ClVectorLibrary); +} + +TargetLibraryInfoImpl::TargetLibraryInfoImpl() { + // Default to everything being available. + memset(AvailableArray, -1, sizeof(AvailableArray)); + + initialize(*this, Triple(), StandardNames); +} + +TargetLibraryInfoImpl::TargetLibraryInfoImpl(const Triple &T) { + // Default to everything being available. + memset(AvailableArray, -1, sizeof(AvailableArray)); + + initialize(*this, T, StandardNames); +} + +TargetLibraryInfoImpl::TargetLibraryInfoImpl(const TargetLibraryInfoImpl &TLI) + : CustomNames(TLI.CustomNames), ShouldExtI32Param(TLI.ShouldExtI32Param), + ShouldExtI32Return(TLI.ShouldExtI32Return), + ShouldSignExtI32Param(TLI.ShouldSignExtI32Param) { + memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray)); + VectorDescs = TLI.VectorDescs; + ScalarDescs = TLI.ScalarDescs; +} + +TargetLibraryInfoImpl::TargetLibraryInfoImpl(TargetLibraryInfoImpl &&TLI) + : CustomNames(std::move(TLI.CustomNames)), + ShouldExtI32Param(TLI.ShouldExtI32Param), + ShouldExtI32Return(TLI.ShouldExtI32Return), + ShouldSignExtI32Param(TLI.ShouldSignExtI32Param) { + std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray), + AvailableArray); + VectorDescs = TLI.VectorDescs; + ScalarDescs = TLI.ScalarDescs; +} + +TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(const TargetLibraryInfoImpl &TLI) { + CustomNames = TLI.CustomNames; + ShouldExtI32Param = TLI.ShouldExtI32Param; + ShouldExtI32Return = TLI.ShouldExtI32Return; + ShouldSignExtI32Param = TLI.ShouldSignExtI32Param; + memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray)); + return *this; +} + +TargetLibraryInfoImpl &TargetLibraryInfoImpl::operator=(TargetLibraryInfoImpl &&TLI) { + CustomNames = std::move(TLI.CustomNames); + ShouldExtI32Param = TLI.ShouldExtI32Param; + ShouldExtI32Return = TLI.ShouldExtI32Return; + ShouldSignExtI32Param = TLI.ShouldSignExtI32Param; + std::move(std::begin(TLI.AvailableArray), std::end(TLI.AvailableArray), + AvailableArray); + return *this; +} + +static StringRef sanitizeFunctionName(StringRef 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 StringRef(); + + // Check for \01 prefix that is used to mangle __asm declarations and + // strip it if present. + return GlobalValue::dropLLVMManglingEscape(funcName); +} + +bool TargetLibraryInfoImpl::getLibFunc(StringRef funcName, + LibFunc &F) const { + StringRef const *Start = &StandardNames[0]; + StringRef const *End = &StandardNames[NumLibFuncs]; + + funcName = sanitizeFunctionName(funcName); + if (funcName.empty()) + return false; + + StringRef const *I = std::lower_bound( + Start, End, funcName, [](StringRef LHS, StringRef RHS) { + return LHS < RHS; + }); + if (I != End && *I == funcName) { + F = (LibFunc)(I - Start); + return true; + } + return false; +} + +bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy, + LibFunc F, + const DataLayout *DL) const { + LLVMContext &Ctx = FTy.getContext(); + Type *PCharTy = Type::getInt8PtrTy(Ctx); + Type *SizeTTy = DL ? DL->getIntPtrType(Ctx, /*AS=*/0) : nullptr; + auto IsSizeTTy = [SizeTTy](Type *Ty) { + return SizeTTy ? Ty == SizeTTy : Ty->isIntegerTy(); + }; + unsigned NumParams = FTy.getNumParams(); + + switch (F) { + case LibFunc_execl: + case LibFunc_execlp: + case LibFunc_execle: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy() && + FTy.getReturnType()->isIntegerTy(32)); + case LibFunc_execv: + case LibFunc_execvp: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy() && + FTy.getReturnType()->isIntegerTy(32)); + case LibFunc_execvP: + case LibFunc_execvpe: + case LibFunc_execve: + return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy() && + FTy.getParamType(2)->isPointerTy() && + FTy.getReturnType()->isIntegerTy(32)); + case LibFunc_strlen: + return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() && + FTy.getReturnType()->isIntegerTy()); + + case LibFunc_strchr: + case LibFunc_strrchr: + return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0) == FTy.getReturnType() && + FTy.getParamType(1)->isIntegerTy()); + + case LibFunc_strtol: + case LibFunc_strtod: + case LibFunc_strtof: + case LibFunc_strtoul: + case LibFunc_strtoll: + case LibFunc_strtold: + case LibFunc_strtoull: + return ((NumParams == 2 || NumParams == 3) && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_strcat_chk: + --NumParams; + if (!IsSizeTTy(FTy.getParamType(NumParams))) + return false; + LLVM_FALLTHROUGH; + case LibFunc_strcat: + return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0) == FTy.getReturnType() && + FTy.getParamType(1) == FTy.getReturnType()); + + case LibFunc_strncat_chk: + --NumParams; + if (!IsSizeTTy(FTy.getParamType(NumParams))) + return false; + LLVM_FALLTHROUGH; + case LibFunc_strncat: + return (NumParams == 3 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0) == FTy.getReturnType() && + FTy.getParamType(1) == FTy.getReturnType() && + IsSizeTTy(FTy.getParamType(2))); + + case LibFunc_strcpy_chk: + case LibFunc_stpcpy_chk: + --NumParams; + if (!IsSizeTTy(FTy.getParamType(NumParams))) + return false; + LLVM_FALLTHROUGH; + case LibFunc_strcpy: + case LibFunc_stpcpy: + return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(0) && + FTy.getParamType(0) == FTy.getParamType(1) && + FTy.getParamType(0) == PCharTy); + + case LibFunc_strlcat_chk: + case LibFunc_strlcpy_chk: + --NumParams; + if (!IsSizeTTy(FTy.getParamType(NumParams))) + return false; + LLVM_FALLTHROUGH; + case LibFunc_strlcat: + case LibFunc_strlcpy: + return NumParams == 3 && IsSizeTTy(FTy.getReturnType()) && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy() && + IsSizeTTy(FTy.getParamType(2)); + + case LibFunc_strncpy_chk: + case LibFunc_stpncpy_chk: + --NumParams; + if (!IsSizeTTy(FTy.getParamType(NumParams))) + return false; + LLVM_FALLTHROUGH; + case LibFunc_strncpy: + case LibFunc_stpncpy: + return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) && + FTy.getParamType(0) == FTy.getParamType(1) && + FTy.getParamType(0) == PCharTy && + IsSizeTTy(FTy.getParamType(2))); + + case LibFunc_strxfrm: + return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + + case LibFunc_strcmp: + return (NumParams == 2 && FTy.getReturnType()->isIntegerTy(32) && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(0) == FTy.getParamType(1)); + + case LibFunc_strncmp: + return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(0) == FTy.getParamType(1) && + IsSizeTTy(FTy.getParamType(2))); + + case LibFunc_strspn: + case LibFunc_strcspn: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(0) == FTy.getParamType(1) && + FTy.getReturnType()->isIntegerTy()); + + case LibFunc_strcoll: + case LibFunc_strcasecmp: + case LibFunc_strncasecmp: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + + case LibFunc_strstr: + return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + + case LibFunc_strpbrk: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getReturnType() == FTy.getParamType(0) && + FTy.getParamType(0) == FTy.getParamType(1)); + + case LibFunc_strtok: + case LibFunc_strtok_r: + return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_scanf: + case LibFunc_setbuf: + case LibFunc_setvbuf: + return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy()); + case LibFunc_strdup: + case LibFunc_strndup: + return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0)->isPointerTy()); + case LibFunc_sscanf: + case LibFunc_stat: + case LibFunc_statvfs: + case LibFunc_siprintf: + case LibFunc_small_sprintf: + case LibFunc_sprintf: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy() && + FTy.getReturnType()->isIntegerTy(32)); + + case LibFunc_sprintf_chk: + return NumParams == 4 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isIntegerTy(32) && + IsSizeTTy(FTy.getParamType(2)) && + FTy.getParamType(3)->isPointerTy() && + FTy.getReturnType()->isIntegerTy(32); + + case LibFunc_snprintf: + return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(2)->isPointerTy() && + FTy.getReturnType()->isIntegerTy(32)); + + case LibFunc_snprintf_chk: + return NumParams == 5 && FTy.getParamType(0)->isPointerTy() && + IsSizeTTy(FTy.getParamType(1)) && + FTy.getParamType(2)->isIntegerTy(32) && + IsSizeTTy(FTy.getParamType(3)) && + FTy.getParamType(4)->isPointerTy() && + FTy.getReturnType()->isIntegerTy(32); + + case LibFunc_setitimer: + return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() && + FTy.getParamType(2)->isPointerTy()); + case LibFunc_system: + return (NumParams == 1 && FTy.getParamType(0)->isPointerTy()); + case LibFunc_malloc: + return (NumParams == 1 && FTy.getReturnType()->isPointerTy()); + case LibFunc_memcmp: + return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + + case LibFunc_memchr: + case LibFunc_memrchr: + return (NumParams == 3 && FTy.getReturnType()->isPointerTy() && + FTy.getReturnType() == FTy.getParamType(0) && + FTy.getParamType(1)->isIntegerTy(32) && + IsSizeTTy(FTy.getParamType(2))); + case LibFunc_modf: + case LibFunc_modff: + case LibFunc_modfl: + return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy()); + + case LibFunc_memcpy_chk: + case LibFunc_memmove_chk: + --NumParams; + if (!IsSizeTTy(FTy.getParamType(NumParams))) + return false; + LLVM_FALLTHROUGH; + case LibFunc_memcpy: + case LibFunc_mempcpy: + case LibFunc_memmove: + return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy() && + IsSizeTTy(FTy.getParamType(2))); + + case LibFunc_memset_chk: + --NumParams; + if (!IsSizeTTy(FTy.getParamType(NumParams))) + return false; + LLVM_FALLTHROUGH; + case LibFunc_memset: + return (NumParams == 3 && FTy.getReturnType() == FTy.getParamType(0) && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isIntegerTy() && + IsSizeTTy(FTy.getParamType(2))); + + case LibFunc_memccpy_chk: + --NumParams; + if (!IsSizeTTy(FTy.getParamType(NumParams))) + return false; + LLVM_FALLTHROUGH; + case LibFunc_memccpy: + return (NumParams >= 2 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_memalign: + return (FTy.getReturnType()->isPointerTy()); + case LibFunc_realloc: + case LibFunc_reallocf: + return (NumParams == 2 && FTy.getReturnType() == PCharTy && + FTy.getParamType(0) == FTy.getReturnType() && + IsSizeTTy(FTy.getParamType(1))); + case LibFunc_read: + return (NumParams == 3 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_rewind: + case LibFunc_rmdir: + case LibFunc_remove: + case LibFunc_realpath: + return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy()); + case LibFunc_rename: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_readlink: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_write: + return (NumParams == 3 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_bcopy: + case LibFunc_bcmp: + return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_bzero: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy()); + case LibFunc_calloc: + return (NumParams == 2 && FTy.getReturnType()->isPointerTy()); + + case LibFunc_atof: + case LibFunc_atoi: + case LibFunc_atol: + case LibFunc_atoll: + case LibFunc_ferror: + case LibFunc_getenv: + case LibFunc_getpwnam: + case LibFunc_iprintf: + case LibFunc_small_printf: + case LibFunc_pclose: + case LibFunc_perror: + case LibFunc_printf: + case LibFunc_puts: + case LibFunc_uname: + case LibFunc_under_IO_getc: + case LibFunc_unlink: + case LibFunc_unsetenv: + return (NumParams == 1 && FTy.getParamType(0)->isPointerTy()); + + case LibFunc_access: + case LibFunc_chmod: + case LibFunc_chown: + case LibFunc_clearerr: + case LibFunc_closedir: + case LibFunc_ctermid: + case LibFunc_fclose: + case LibFunc_feof: + case LibFunc_fflush: + case LibFunc_fgetc: + case LibFunc_fgetc_unlocked: + case LibFunc_fileno: + case LibFunc_flockfile: + case LibFunc_free: + case LibFunc_fseek: + case LibFunc_fseeko64: + case LibFunc_fseeko: + case LibFunc_fsetpos: + case LibFunc_ftell: + case LibFunc_ftello64: + case LibFunc_ftello: + case LibFunc_ftrylockfile: + case LibFunc_funlockfile: + case LibFunc_getc: + case LibFunc_getc_unlocked: + case LibFunc_getlogin_r: + case LibFunc_mkdir: + case LibFunc_mktime: + case LibFunc_times: + return (NumParams != 0 && FTy.getParamType(0)->isPointerTy()); + + case LibFunc_fopen: + return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_fork: + return (NumParams == 0 && FTy.getReturnType()->isIntegerTy(32)); + case LibFunc_fdopen: + return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_fputc: + case LibFunc_fputc_unlocked: + case LibFunc_fstat: + case LibFunc_frexp: + case LibFunc_frexpf: + case LibFunc_frexpl: + case LibFunc_fstatvfs: + return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_fgets: + case LibFunc_fgets_unlocked: + return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(2)->isPointerTy()); + case LibFunc_fread: + case LibFunc_fread_unlocked: + return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(3)->isPointerTy()); + case LibFunc_fwrite: + case LibFunc_fwrite_unlocked: + return (NumParams == 4 && FTy.getReturnType()->isIntegerTy() && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isIntegerTy() && + FTy.getParamType(2)->isIntegerTy() && + FTy.getParamType(3)->isPointerTy()); + case LibFunc_fputs: + case LibFunc_fputs_unlocked: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_fscanf: + case LibFunc_fiprintf: + case LibFunc_small_fprintf: + case LibFunc_fprintf: + return (NumParams >= 2 && FTy.getReturnType()->isIntegerTy() && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_fgetpos: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_getchar: + case LibFunc_getchar_unlocked: + return (NumParams == 0 && FTy.getReturnType()->isIntegerTy()); + case LibFunc_gets: + return (NumParams == 1 && FTy.getParamType(0) == PCharTy); + case LibFunc_getitimer: + return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_ungetc: + return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_utime: + case LibFunc_utimes: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_putc: + case LibFunc_putc_unlocked: + return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_pread: + case LibFunc_pwrite: + return (NumParams == 4 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_popen: + return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_vscanf: + return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_vsscanf: + return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() && + FTy.getParamType(2)->isPointerTy()); + case LibFunc_vfscanf: + return (NumParams == 3 && FTy.getParamType(1)->isPointerTy() && + FTy.getParamType(2)->isPointerTy()); + case LibFunc_valloc: + return (FTy.getReturnType()->isPointerTy()); + case LibFunc_vprintf: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy()); + case LibFunc_vfprintf: + case LibFunc_vsprintf: + return (NumParams == 3 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_vsprintf_chk: + return NumParams == 5 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isIntegerTy(32) && + IsSizeTTy(FTy.getParamType(2)) && FTy.getParamType(3)->isPointerTy(); + case LibFunc_vsnprintf: + return (NumParams == 4 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(2)->isPointerTy()); + case LibFunc_vsnprintf_chk: + return NumParams == 6 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(2)->isIntegerTy(32) && + IsSizeTTy(FTy.getParamType(3)) && FTy.getParamType(4)->isPointerTy(); + case LibFunc_open: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy()); + case LibFunc_opendir: + return (NumParams == 1 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0)->isPointerTy()); + case LibFunc_tmpfile: + return (FTy.getReturnType()->isPointerTy()); + case LibFunc_htonl: + case LibFunc_ntohl: + return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) && + FTy.getReturnType() == FTy.getParamType(0)); + case LibFunc_htons: + case LibFunc_ntohs: + return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(16) && + FTy.getReturnType() == FTy.getParamType(0)); + case LibFunc_lstat: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_lchown: + return (NumParams == 3 && FTy.getParamType(0)->isPointerTy()); + case LibFunc_qsort: + return (NumParams == 4 && FTy.getParamType(3)->isPointerTy()); + case LibFunc_dunder_strdup: + case LibFunc_dunder_strndup: + return (NumParams >= 1 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0)->isPointerTy()); + case LibFunc_dunder_strtok_r: + return (NumParams == 3 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_under_IO_putc: + return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_dunder_isoc99_scanf: + return (NumParams >= 1 && FTy.getParamType(0)->isPointerTy()); + case LibFunc_stat64: + case LibFunc_lstat64: + case LibFunc_statvfs64: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_dunder_isoc99_sscanf: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_fopen64: + return (NumParams == 2 && FTy.getReturnType()->isPointerTy() && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + case LibFunc_tmpfile64: + return (FTy.getReturnType()->isPointerTy()); + case LibFunc_fstat64: + case LibFunc_fstatvfs64: + return (NumParams == 2 && FTy.getParamType(1)->isPointerTy()); + case LibFunc_open64: + return (NumParams >= 2 && FTy.getParamType(0)->isPointerTy()); + case LibFunc_gettimeofday: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy()); + + // new(unsigned int); + case LibFunc_Znwj: + // new(unsigned long); + case LibFunc_Znwm: + // new[](unsigned int); + case LibFunc_Znaj: + // new[](unsigned long); + case LibFunc_Znam: + // new(unsigned int); + case LibFunc_msvc_new_int: + // new(unsigned long long); + case LibFunc_msvc_new_longlong: + // new[](unsigned int); + case LibFunc_msvc_new_array_int: + // new[](unsigned long long); + case LibFunc_msvc_new_array_longlong: + return (NumParams == 1 && FTy.getReturnType()->isPointerTy()); + + // new(unsigned int, nothrow); + case LibFunc_ZnwjRKSt9nothrow_t: + // new(unsigned long, nothrow); + case LibFunc_ZnwmRKSt9nothrow_t: + // new[](unsigned int, nothrow); + case LibFunc_ZnajRKSt9nothrow_t: + // new[](unsigned long, nothrow); + case LibFunc_ZnamRKSt9nothrow_t: + // new(unsigned int, nothrow); + case LibFunc_msvc_new_int_nothrow: + // new(unsigned long long, nothrow); + case LibFunc_msvc_new_longlong_nothrow: + // new[](unsigned int, nothrow); + case LibFunc_msvc_new_array_int_nothrow: + // new[](unsigned long long, nothrow); + case LibFunc_msvc_new_array_longlong_nothrow: + // new(unsigned int, align_val_t) + case LibFunc_ZnwjSt11align_val_t: + // new(unsigned long, align_val_t) + case LibFunc_ZnwmSt11align_val_t: + // new[](unsigned int, align_val_t) + case LibFunc_ZnajSt11align_val_t: + // new[](unsigned long, align_val_t) + case LibFunc_ZnamSt11align_val_t: + return (NumParams == 2 && FTy.getReturnType()->isPointerTy()); + + // new(unsigned int, align_val_t, nothrow) + case LibFunc_ZnwjSt11align_val_tRKSt9nothrow_t: + // new(unsigned long, align_val_t, nothrow) + case LibFunc_ZnwmSt11align_val_tRKSt9nothrow_t: + // new[](unsigned int, align_val_t, nothrow) + case LibFunc_ZnajSt11align_val_tRKSt9nothrow_t: + // new[](unsigned long, align_val_t, nothrow) + case LibFunc_ZnamSt11align_val_tRKSt9nothrow_t: + return (NumParams == 3 && FTy.getReturnType()->isPointerTy()); + + // void operator delete[](void*); + case LibFunc_ZdaPv: + // void operator delete(void*); + case LibFunc_ZdlPv: + // void operator delete[](void*); + case LibFunc_msvc_delete_array_ptr32: + // void operator delete[](void*); + case LibFunc_msvc_delete_array_ptr64: + // void operator delete(void*); + case LibFunc_msvc_delete_ptr32: + // void operator delete(void*); + case LibFunc_msvc_delete_ptr64: + return (NumParams == 1 && FTy.getParamType(0)->isPointerTy()); + + // void operator delete[](void*, nothrow); + case LibFunc_ZdaPvRKSt9nothrow_t: + // void operator delete[](void*, unsigned int); + case LibFunc_ZdaPvj: + // void operator delete[](void*, unsigned long); + case LibFunc_ZdaPvm: + // void operator delete(void*, nothrow); + case LibFunc_ZdlPvRKSt9nothrow_t: + // void operator delete(void*, unsigned int); + case LibFunc_ZdlPvj: + // void operator delete(void*, unsigned long); + case LibFunc_ZdlPvm: + // void operator delete(void*, align_val_t) + case LibFunc_ZdlPvSt11align_val_t: + // void operator delete[](void*, align_val_t) + case LibFunc_ZdaPvSt11align_val_t: + // void operator delete[](void*, unsigned int); + case LibFunc_msvc_delete_array_ptr32_int: + // void operator delete[](void*, nothrow); + case LibFunc_msvc_delete_array_ptr32_nothrow: + // void operator delete[](void*, unsigned long long); + case LibFunc_msvc_delete_array_ptr64_longlong: + // void operator delete[](void*, nothrow); + case LibFunc_msvc_delete_array_ptr64_nothrow: + // void operator delete(void*, unsigned int); + case LibFunc_msvc_delete_ptr32_int: + // void operator delete(void*, nothrow); + case LibFunc_msvc_delete_ptr32_nothrow: + // void operator delete(void*, unsigned long long); + case LibFunc_msvc_delete_ptr64_longlong: + // void operator delete(void*, nothrow); + case LibFunc_msvc_delete_ptr64_nothrow: + return (NumParams == 2 && FTy.getParamType(0)->isPointerTy()); + + // void operator delete(void*, align_val_t, nothrow) + case LibFunc_ZdlPvSt11align_val_tRKSt9nothrow_t: + // void operator delete[](void*, align_val_t, nothrow) + case LibFunc_ZdaPvSt11align_val_tRKSt9nothrow_t: + return (NumParams == 3 && FTy.getParamType(0)->isPointerTy()); + + case LibFunc_memset_pattern16: + return (!FTy.isVarArg() && NumParams == 3 && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy() && + FTy.getParamType(2)->isIntegerTy()); + + case LibFunc_cxa_guard_abort: + case LibFunc_cxa_guard_acquire: + case LibFunc_cxa_guard_release: + case LibFunc_nvvm_reflect: + return (NumParams == 1 && FTy.getParamType(0)->isPointerTy()); + + case LibFunc_sincospi_stret: + case LibFunc_sincospif_stret: + return (NumParams == 1 && FTy.getParamType(0)->isFloatingPointTy()); + + case LibFunc_acos: + case LibFunc_acos_finite: + case LibFunc_acosf: + case LibFunc_acosf_finite: + case LibFunc_acosh: + case LibFunc_acosh_finite: + case LibFunc_acoshf: + case LibFunc_acoshf_finite: + case LibFunc_acoshl: + case LibFunc_acoshl_finite: + case LibFunc_acosl: + case LibFunc_acosl_finite: + case LibFunc_asin: + case LibFunc_asin_finite: + case LibFunc_asinf: + case LibFunc_asinf_finite: + case LibFunc_asinh: + case LibFunc_asinhf: + case LibFunc_asinhl: + case LibFunc_asinl: + case LibFunc_asinl_finite: + case LibFunc_atan: + case LibFunc_atanf: + case LibFunc_atanh: + case LibFunc_atanh_finite: + case LibFunc_atanhf: + case LibFunc_atanhf_finite: + case LibFunc_atanhl: + case LibFunc_atanhl_finite: + case LibFunc_atanl: + case LibFunc_cbrt: + case LibFunc_cbrtf: + case LibFunc_cbrtl: + case LibFunc_ceil: + case LibFunc_ceilf: + case LibFunc_ceill: + case LibFunc_cos: + case LibFunc_cosf: + case LibFunc_cosh: + case LibFunc_cosh_finite: + case LibFunc_coshf: + case LibFunc_coshf_finite: + case LibFunc_coshl: + case LibFunc_coshl_finite: + case LibFunc_cosl: + case LibFunc_exp10: + case LibFunc_exp10_finite: + case LibFunc_exp10f: + case LibFunc_exp10f_finite: + case LibFunc_exp10l: + case LibFunc_exp10l_finite: + case LibFunc_exp2: + case LibFunc_exp2_finite: + case LibFunc_exp2f: + case LibFunc_exp2f_finite: + case LibFunc_exp2l: + case LibFunc_exp2l_finite: + case LibFunc_exp: + case LibFunc_exp_finite: + case LibFunc_expf: + case LibFunc_expf_finite: + case LibFunc_expl: + case LibFunc_expl_finite: + case LibFunc_expm1: + case LibFunc_expm1f: + case LibFunc_expm1l: + case LibFunc_fabs: + case LibFunc_fabsf: + case LibFunc_fabsl: + case LibFunc_floor: + case LibFunc_floorf: + case LibFunc_floorl: + case LibFunc_log10: + case LibFunc_log10_finite: + case LibFunc_log10f: + case LibFunc_log10f_finite: + case LibFunc_log10l: + case LibFunc_log10l_finite: + case LibFunc_log1p: + case LibFunc_log1pf: + case LibFunc_log1pl: + case LibFunc_log2: + case LibFunc_log2_finite: + case LibFunc_log2f: + case LibFunc_log2f_finite: + case LibFunc_log2l: + case LibFunc_log2l_finite: + case LibFunc_log: + case LibFunc_log_finite: + case LibFunc_logb: + case LibFunc_logbf: + case LibFunc_logbl: + case LibFunc_logf: + case LibFunc_logf_finite: + case LibFunc_logl: + case LibFunc_logl_finite: + case LibFunc_nearbyint: + case LibFunc_nearbyintf: + case LibFunc_nearbyintl: + case LibFunc_rint: + case LibFunc_rintf: + case LibFunc_rintl: + case LibFunc_round: + case LibFunc_roundf: + case LibFunc_roundl: + case LibFunc_sin: + case LibFunc_sinf: + case LibFunc_sinh: + case LibFunc_sinh_finite: + case LibFunc_sinhf: + case LibFunc_sinhf_finite: + case LibFunc_sinhl: + case LibFunc_sinhl_finite: + case LibFunc_sinl: + case LibFunc_sqrt: + case LibFunc_sqrt_finite: + case LibFunc_sqrtf: + case LibFunc_sqrtf_finite: + case LibFunc_sqrtl: + case LibFunc_sqrtl_finite: + case LibFunc_tan: + case LibFunc_tanf: + case LibFunc_tanh: + case LibFunc_tanhf: + case LibFunc_tanhl: + case LibFunc_tanl: + case LibFunc_trunc: + case LibFunc_truncf: + case LibFunc_truncl: + return (NumParams == 1 && FTy.getReturnType()->isFloatingPointTy() && + FTy.getReturnType() == FTy.getParamType(0)); + + case LibFunc_atan2: + case LibFunc_atan2_finite: + case LibFunc_atan2f: + case LibFunc_atan2f_finite: + case LibFunc_atan2l: + case LibFunc_atan2l_finite: + case LibFunc_fmin: + case LibFunc_fminf: + case LibFunc_fminl: + case LibFunc_fmax: + case LibFunc_fmaxf: + case LibFunc_fmaxl: + case LibFunc_fmod: + case LibFunc_fmodf: + case LibFunc_fmodl: + case LibFunc_copysign: + case LibFunc_copysignf: + case LibFunc_copysignl: + case LibFunc_pow: + case LibFunc_pow_finite: + case LibFunc_powf: + case LibFunc_powf_finite: + case LibFunc_powl: + case LibFunc_powl_finite: + return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() && + FTy.getReturnType() == FTy.getParamType(0) && + FTy.getReturnType() == FTy.getParamType(1)); + + case LibFunc_ldexp: + case LibFunc_ldexpf: + case LibFunc_ldexpl: + return (NumParams == 2 && FTy.getReturnType()->isFloatingPointTy() && + FTy.getReturnType() == FTy.getParamType(0) && + FTy.getParamType(1)->isIntegerTy(32)); + + case LibFunc_ffs: + case LibFunc_ffsl: + case LibFunc_ffsll: + case LibFunc_fls: + case LibFunc_flsl: + case LibFunc_flsll: + return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) && + FTy.getParamType(0)->isIntegerTy()); + + case LibFunc_isdigit: + case LibFunc_isascii: + case LibFunc_toascii: + case LibFunc_putchar: + case LibFunc_putchar_unlocked: + return (NumParams == 1 && FTy.getReturnType()->isIntegerTy(32) && + FTy.getReturnType() == FTy.getParamType(0)); + + case LibFunc_abs: + case LibFunc_labs: + case LibFunc_llabs: + return (NumParams == 1 && FTy.getReturnType()->isIntegerTy() && + FTy.getReturnType() == FTy.getParamType(0)); + + case LibFunc_cxa_atexit: + return (NumParams == 3 && FTy.getReturnType()->isIntegerTy() && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1)->isPointerTy() && + FTy.getParamType(2)->isPointerTy()); + + case LibFunc_sinpi: + case LibFunc_cospi: + return (NumParams == 1 && FTy.getReturnType()->isDoubleTy() && + FTy.getReturnType() == FTy.getParamType(0)); + + case LibFunc_sinpif: + case LibFunc_cospif: + return (NumParams == 1 && FTy.getReturnType()->isFloatTy() && + FTy.getReturnType() == FTy.getParamType(0)); + + case LibFunc_strnlen: + return (NumParams == 2 && FTy.getReturnType() == FTy.getParamType(1) && + FTy.getParamType(0) == PCharTy && + FTy.getParamType(1) == SizeTTy); + + case LibFunc_posix_memalign: + return (NumParams == 3 && FTy.getReturnType()->isIntegerTy(32) && + FTy.getParamType(0)->isPointerTy() && + FTy.getParamType(1) == SizeTTy && FTy.getParamType(2) == SizeTTy); + + case LibFunc_wcslen: + return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() && + FTy.getReturnType()->isIntegerTy()); + + case LibFunc_cabs: + case LibFunc_cabsf: + case LibFunc_cabsl: { + Type* RetTy = FTy.getReturnType(); + if (!RetTy->isFloatingPointTy()) + return false; + + // NOTE: These prototypes are target specific and currently support + // "complex" passed as an array or discrete real & imaginary parameters. + // Add other calling conventions to enable libcall optimizations. + if (NumParams == 1) + return (FTy.getParamType(0)->isArrayTy() && + FTy.getParamType(0)->getArrayNumElements() == 2 && + FTy.getParamType(0)->getArrayElementType() == RetTy); + else if (NumParams == 2) + return (FTy.getParamType(0) == RetTy && FTy.getParamType(1) == RetTy); + else + return false; + } + case LibFunc::NumLibFuncs: + break; + } + + llvm_unreachable("Invalid libfunc"); +} + +bool TargetLibraryInfoImpl::getLibFunc(const Function &FDecl, + LibFunc &F) const { + // Intrinsics don't overlap w/libcalls; if our module has a large number of + // intrinsics, this ends up being an interesting compile time win since we + // avoid string normalization and comparison. + if (FDecl.isIntrinsic()) return false; + + const DataLayout *DL = + FDecl.getParent() ? &FDecl.getParent()->getDataLayout() : nullptr; + return getLibFunc(FDecl.getName(), F) && + isValidProtoForLibFunc(*FDecl.getFunctionType(), F, DL); +} + +void TargetLibraryInfoImpl::disableAllFunctions() { + memset(AvailableArray, 0, sizeof(AvailableArray)); +} + +static bool compareByScalarFnName(const VecDesc &LHS, const VecDesc &RHS) { + return LHS.ScalarFnName < RHS.ScalarFnName; +} + +static bool compareByVectorFnName(const VecDesc &LHS, const VecDesc &RHS) { + return LHS.VectorFnName < RHS.VectorFnName; +} + +static bool compareWithScalarFnName(const VecDesc &LHS, StringRef S) { + return LHS.ScalarFnName < S; +} + +static bool compareWithVectorFnName(const VecDesc &LHS, StringRef S) { + return LHS.VectorFnName < S; +} + +void TargetLibraryInfoImpl::addVectorizableFunctions(ArrayRef<VecDesc> Fns) { + VectorDescs.insert(VectorDescs.end(), Fns.begin(), Fns.end()); + llvm::sort(VectorDescs, compareByScalarFnName); + + ScalarDescs.insert(ScalarDescs.end(), Fns.begin(), Fns.end()); + llvm::sort(ScalarDescs, compareByVectorFnName); +} + +void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib( + enum VectorLibrary VecLib) { + switch (VecLib) { + case Accelerate: { + const VecDesc VecFuncs[] = { + #define TLI_DEFINE_ACCELERATE_VECFUNCS + #include "llvm/Analysis/VecFuncs.def" + }; + addVectorizableFunctions(VecFuncs); + break; + } + case MASSV: { + const VecDesc VecFuncs[] = { + #define TLI_DEFINE_MASSV_VECFUNCS + #include "llvm/Analysis/VecFuncs.def" + }; + addVectorizableFunctions(VecFuncs); + break; + } + case SVML: { + const VecDesc VecFuncs[] = { + #define TLI_DEFINE_SVML_VECFUNCS + #include "llvm/Analysis/VecFuncs.def" + }; + addVectorizableFunctions(VecFuncs); + break; + } + case NoLibrary: + break; + } +} + +bool TargetLibraryInfoImpl::isFunctionVectorizable(StringRef funcName) const { + funcName = sanitizeFunctionName(funcName); + if (funcName.empty()) + return false; + + std::vector<VecDesc>::const_iterator I = + llvm::lower_bound(VectorDescs, funcName, compareWithScalarFnName); + return I != VectorDescs.end() && StringRef(I->ScalarFnName) == funcName; +} + +StringRef TargetLibraryInfoImpl::getVectorizedFunction(StringRef F, + unsigned VF) const { + F = sanitizeFunctionName(F); + if (F.empty()) + return F; + std::vector<VecDesc>::const_iterator I = + llvm::lower_bound(VectorDescs, F, compareWithScalarFnName); + while (I != VectorDescs.end() && StringRef(I->ScalarFnName) == F) { + if (I->VectorizationFactor == VF) + return I->VectorFnName; + ++I; + } + return StringRef(); +} + +StringRef TargetLibraryInfoImpl::getScalarizedFunction(StringRef F, + unsigned &VF) const { + F = sanitizeFunctionName(F); + if (F.empty()) + return F; + + std::vector<VecDesc>::const_iterator I = + llvm::lower_bound(ScalarDescs, F, compareWithVectorFnName); + if (I == VectorDescs.end() || StringRef(I->VectorFnName) != F) + return StringRef(); + VF = I->VectorizationFactor; + return I->ScalarFnName; +} + +TargetLibraryInfo TargetLibraryAnalysis::run(Module &M, + ModuleAnalysisManager &) { + if (PresetInfoImpl) + return TargetLibraryInfo(*PresetInfoImpl); + + return TargetLibraryInfo(lookupInfoImpl(Triple(M.getTargetTriple()))); +} + +TargetLibraryInfo TargetLibraryAnalysis::run(Function &F, + FunctionAnalysisManager &) { + if (PresetInfoImpl) + return TargetLibraryInfo(*PresetInfoImpl); + + return TargetLibraryInfo( + lookupInfoImpl(Triple(F.getParent()->getTargetTriple()))); +} + +TargetLibraryInfoImpl &TargetLibraryAnalysis::lookupInfoImpl(const Triple &T) { + std::unique_ptr<TargetLibraryInfoImpl> &Impl = + Impls[T.normalize()]; + if (!Impl) + Impl.reset(new TargetLibraryInfoImpl(T)); + + return *Impl; +} + +unsigned TargetLibraryInfoImpl::getWCharSize(const Module &M) const { + if (auto *ShortWChar = cast_or_null<ConstantAsMetadata>( + M.getModuleFlag("wchar_size"))) + return cast<ConstantInt>(ShortWChar->getValue())->getZExtValue(); + return 0; +} + +TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass() + : ImmutablePass(ID), TLIImpl(), TLI(TLIImpl) { + initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry()); +} + +TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass(const Triple &T) + : ImmutablePass(ID), TLIImpl(T), TLI(TLIImpl) { + initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry()); +} + +TargetLibraryInfoWrapperPass::TargetLibraryInfoWrapperPass( + const TargetLibraryInfoImpl &TLIImpl) + : ImmutablePass(ID), TLIImpl(TLIImpl), TLI(this->TLIImpl) { + initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry()); +} + +AnalysisKey TargetLibraryAnalysis::Key; + +// Register the basic pass. +INITIALIZE_PASS(TargetLibraryInfoWrapperPass, "targetlibinfo", + "Target Library Information", false, true) +char TargetLibraryInfoWrapperPass::ID = 0; + +void TargetLibraryInfoWrapperPass::anchor() {} |