glibc

Tree: 17e00cc69e

Gabriel F. T. Gomes 8466ee1cb7 float128: Add signbit alternative for old compilers In math/math.h, __MATH_TG will expand signbit to __builtin_signbit, e.g.: __builtin_signbitf128, before GCC 6. However, there has never been a __builtin_signbitf128 in GCC and the type-generic builtin is only available since GCC 6. For older GCC, this patch defines __builtin_signbitf128 to __signbitf128, so that the internal function is used instead of the non-existent builtin. This patch also changes the implementation of __signbitf128, because it was reusing the implementation of __signbitl from ldbl-128, which calls __builtin_signbitl. Using the long double version of the builtin is not correct on machines where _Float128 is ABI-distinct from long double (i.e.: ia64, powerpc64le, x86, x86_84). The new implementation does not rely on builtins when being built with GCC versions older than 6.0. The new code does not currently affect powerpc64le builds, because only GCC 6.2 fulfills the requirements from configure. It might affect powerpc64le builds if those requirements are backported to older versions of the compiler. The new code affects x86_64 builds, since glibc is supposed to build correctly with older versions of GCC. Tested for powerpc64le and x86_64. include/math.h (__signbitf128): Define as hidden. * sysdeps/ieee754/float128/s_signbitf128.c (__signbitf128): Reimplement without builtins. * sysdeps/ia64/bits/floatn.h [!__GNUC_PREREQ (6, 0)] (__builtin_signbitf128): Define to __signbitf128. * sysdeps/powerpc/bits/floatn.h: Likewise. * sysdeps/x86/bits/floatn.h: Likewise.		9 years ago
..
Makeconfig	float128: Add _Float128 make bits to libm.	9 years ago
Makefile	Add libio-mtsafe flags to the build of strfromf128	9 years ago
Versions	float128: Add strtof128, wcstof128, and related functions.	9 years ago
e_acosf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_acoshf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_asinf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_atan2f128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_atanhf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_coshf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_exp10f128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_expf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_fmodf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_gammaf128_r.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_hypotf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_ilogbf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_j0f128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_j1f128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_jnf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_lgammaf128_r.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_log2f128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_log10f128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_logf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_powf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_rem_pio2f128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_remainderf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_scalbf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
e_sinhf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
float128_private.h	Fix float128_private.h redefinition of SET_RESTORE_ROUNDL.	9 years ago
float1282mpn.c	float128: Add conversion from float128 to mpn	9 years ago
gamma_productf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
ieee754_float128.h	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
k_cosf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
k_sincosf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
k_sinf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
k_tanf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
lgamma_negf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
lgamma_productf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
mpn2float128.c	float128: Add strtof128, wcstof128, and related functions.	9 years ago
s_asinhf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_atanf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_cbrtf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_ceilf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_copysignf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_cosf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_erff128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_expm1f128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_fabsf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_finitef128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_floorf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_fmaf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_fpclassifyf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_frexpf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_fromfpf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_fromfpxf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_getpayloadf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_isinff128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_isnanf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_issignalingf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_llrintf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_llroundf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_log1pf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_logbf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_lrintf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_lroundf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_modff128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_nearbyintf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_nextafterf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_nexttowardf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_nextupf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_remquof128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_rintf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_roundevenf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_roundf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_scalblnf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_scalbnf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_setpayloadf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_setpayloadsigf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_signbitf128.c	float128: Add signbit alternative for old compilers	9 years ago
s_significandf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_sincosf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_sinf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_tanf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_tanhf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_totalorderf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_totalordermagf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_truncf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_ufromfpf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
s_ufromfpxf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
strfromf128.c	float128: Add strfromf128	9 years ago
strtod_nan_float128.h	float128: Add strtof128, wcstof128, and related functions.	9 years ago
strtof128.c	float128: Add strtof128, wcstof128, and related functions.	9 years ago
strtof128_l.c	Fix float128 uses of xlocale.h.	9 years ago
strtof128_nan.c	float128: Add strtof128, wcstof128, and related functions.	9 years ago
t_sincosf128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago
wcstof128.c	Fix float128 uses of xlocale.h.	9 years ago
wcstof128_l.c	Fix float128 uses of xlocale.h.	9 years ago
wcstof128_nan.c	float128: Add strtof128, wcstof128, and related functions.	9 years ago
x2y2m1f128.c	float128: Add wrappers to override ldbl-128 as float128.	9 years ago