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-rw-r--r--lib/Analysis/TargetLibraryInfo.cpp168
1 files changed, 94 insertions, 74 deletions
diff --git a/lib/Analysis/TargetLibraryInfo.cpp b/lib/Analysis/TargetLibraryInfo.cpp
index 4643f75da42d..ae86ee3d3650 100644
--- a/lib/Analysis/TargetLibraryInfo.cpp
+++ b/lib/Analysis/TargetLibraryInfo.cpp
@@ -161,25 +161,66 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
}
if (T.isOSWindows() && !T.isOSCygMing()) {
- // Win32 does not support long double
+ // 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_atanl);
TLI.setUnavailable(LibFunc_atan2l);
+ TLI.setUnavailable(LibFunc_atanl);
TLI.setUnavailable(LibFunc_ceill);
- TLI.setUnavailable(LibFunc_copysignl);
TLI.setUnavailable(LibFunc_cosl);
TLI.setUnavailable(LibFunc_coshl);
TLI.setUnavailable(LibFunc_expl);
- TLI.setUnavailable(LibFunc_fabsf); // Win32 and Win64 both lack fabsf
TLI.setUnavailable(LibFunc_fabsl);
TLI.setUnavailable(LibFunc_floorl);
- TLI.setUnavailable(LibFunc_fmaxl);
- TLI.setUnavailable(LibFunc_fminl);
TLI.setUnavailable(LibFunc_fmodl);
TLI.setUnavailable(LibFunc_frexpl);
- TLI.setUnavailable(LibFunc_ldexpf);
TLI.setUnavailable(LibFunc_ldexpl);
+ TLI.setUnavailable(LibFunc_log10l);
TLI.setUnavailable(LibFunc_logl);
TLI.setUnavailable(LibFunc_modfl);
TLI.setUnavailable(LibFunc_powl);
@@ -189,81 +230,66 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
TLI.setUnavailable(LibFunc_tanl);
TLI.setUnavailable(LibFunc_tanhl);
- // Win32 only has C89 math
- TLI.setUnavailable(LibFunc_acosh);
- TLI.setUnavailable(LibFunc_acoshf);
+ // 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_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_copysignl);
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_fmaxl);
+ TLI.setUnavailable(LibFunc_fminl);
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 provides some C99 math with mangled names
- TLI.setAvailableWithName(LibFunc_copysign, "_copysign");
-
- if (T.getArch() == Triple::x86) {
- // Win32 on x86 implements single-precision math functions as macros
- TLI.setUnavailable(LibFunc_acosf);
- TLI.setUnavailable(LibFunc_asinf);
- TLI.setUnavailable(LibFunc_atanf);
- TLI.setUnavailable(LibFunc_atan2f);
- TLI.setUnavailable(LibFunc_ceilf);
- TLI.setUnavailable(LibFunc_copysignf);
- TLI.setUnavailable(LibFunc_cosf);
- TLI.setUnavailable(LibFunc_coshf);
- TLI.setUnavailable(LibFunc_expf);
- TLI.setUnavailable(LibFunc_floorf);
- TLI.setUnavailable(LibFunc_fminf);
- TLI.setUnavailable(LibFunc_fmaxf);
- TLI.setUnavailable(LibFunc_fmodf);
- TLI.setUnavailable(LibFunc_logf);
- TLI.setUnavailable(LibFunc_log10f);
- 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);
- }
-
- // Win32 does *not* provide these functions, but they are
- // generally available on POSIX-compliant systems:
+ // 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);
@@ -318,12 +344,6 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
TLI.setUnavailable(LibFunc_utime);
TLI.setUnavailable(LibFunc_utimes);
TLI.setUnavailable(LibFunc_write);
-
- // Win32 does *not* provide provide these functions, but they are
- // specified by C99:
- TLI.setUnavailable(LibFunc_atoll);
- TLI.setUnavailable(LibFunc_frexpf);
- TLI.setUnavailable(LibFunc_llabs);
}
switch (T.getOS()) {
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-08 23:45:27 +0000