diff options
Diffstat (limited to 'llvm/lib/Analysis/TargetLibraryInfo.cpp')
| -rw-r--r-- | llvm/lib/Analysis/TargetLibraryInfo.cpp | 99 |
1 files changed, 64 insertions, 35 deletions
diff --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp index bc662d2..608ac66 100644 --- a/llvm/lib/Analysis/TargetLibraryInfo.cpp +++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp @@ -160,8 +160,25 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T, } if (T.isOSWindows() && !T.isOSCygMing()) { - if (T.getArch() == Triple::x86) { - // Win32 does not support float math functions, in general. + // 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 float math functions, in part. + bool hasPartialFloat = (T.getArch() == Triple::aarch64 || + T.getArch() == Triple::arm || + T.getArch() == Triple::x86_64); + + // Win32 does not support float math functions, in general. + if (!hasPartialFloat) { TLI.setUnavailable(LibFunc_acosf); TLI.setUnavailable(LibFunc_asinf); TLI.setUnavailable(LibFunc_atanf); @@ -172,8 +189,6 @@ static void initialize(TargetLibraryInfoImpl &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_log10f); @@ -185,11 +200,13 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T, TLI.setUnavailable(LibFunc_tanf); TLI.setUnavailable(LibFunc_tanhf); } - TLI.setUnavailable(LibFunc_fabsf); // Win32 and Win64 both lack fabsf + TLI.setUnavailable(LibFunc_fabsf); + TLI.setUnavailable(LibFunc_fmaxf); + TLI.setUnavailable(LibFunc_fminf); TLI.setUnavailable(LibFunc_frexpf); TLI.setUnavailable(LibFunc_ldexpf); - // Win32 does not support long double. + // Win32 does not support long double math functions. TLI.setUnavailable(LibFunc_acosl); TLI.setUnavailable(LibFunc_asinl); TLI.setUnavailable(LibFunc_atanl); @@ -207,6 +224,7 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T, TLI.setUnavailable(LibFunc_frexpl); TLI.setUnavailable(LibFunc_ldexpl); TLI.setUnavailable(LibFunc_logl); + TLI.setUnavailable(LibFunc_log10l); TLI.setUnavailable(LibFunc_modfl); TLI.setUnavailable(LibFunc_powl); TLI.setUnavailable(LibFunc_sinl); @@ -216,51 +234,62 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T, TLI.setUnavailable(LibFunc_tanhl); // Win32 does not fully support C99 math functions. - TLI.setUnavailable(LibFunc_acosh); + if (!hasPartialC99) { + TLI.setUnavailable(LibFunc_acosh); + TLI.setUnavailable(LibFunc_asinh); + TLI.setUnavailable(LibFunc_atanh); + TLI.setUnavailable(LibFunc_cbrt); + TLI.setUnavailable(LibFunc_exp2); + TLI.setUnavailable(LibFunc_expm1); + TLI.setUnavailable(LibFunc_log1p); + TLI.setUnavailable(LibFunc_log2); + TLI.setUnavailable(LibFunc_logb); + TLI.setUnavailable(LibFunc_nearbyint); + TLI.setUnavailable(LibFunc_rint); + TLI.setUnavailable(LibFunc_round); + TLI.setUnavailable(LibFunc_trunc); + } + + // Win32 does not support float C99 math functions, in general. 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_cabs); TLI.setUnavailable(LibFunc_cabsf); - TLI.setUnavailable(LibFunc_cabsl); - 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_log2f); + if (!hasPartialFloat || !hasPartialC99) + TLI.setUnavailable(LibFunc_logbf); + TLI.setUnavailable(LibFunc_nearbyintf); + TLI.setUnavailable(LibFunc_rintf); + TLI.setUnavailable(LibFunc_roundf); + 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_exp2l); + TLI.setUnavailable(LibFunc_expm1l); TLI.setUnavailable(LibFunc_log1pl); - TLI.setUnavailable(LibFunc_logb); - TLI.setUnavailable(LibFunc_logbf); + TLI.setUnavailable(LibFunc_log2l); 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 supports some C99 math functions, but with mangled names. + // Win32 supports some C89 and C99 math functions, but with mangled names. + TLI.setAvailableWithName(LibFunc_cabs, "_cabs"); TLI.setAvailableWithName(LibFunc_copysign, "_copysign"); + if (hasPartialFloat) + TLI.setAvailableWithName(LibFunc_copysignf, "_copysignf"); + if (hasPartialFloat && hasPartialC99) + TLI.setAvailableWithName(LibFunc_logbf, "_logbf"); // Win32 does not support these C99 functions. TLI.setUnavailable(LibFunc_atoll); |