Jakub Jelinek 1868599f8d libgfortran: Provide some further math library fallbacks [PR94694] ... The following patch provides some further math library fallbacks. fmaf can be implemented using fma if available, fma and fmal can use x * y + z as fallback, it is not perfect, but e.g. glibc on various arches has been using that as fallback for many years, and copysign/copysignl/fabs/fabsl can be implemented using corresponding __builtin_* if we make sure that gcc expands it inline instead of using a library call (these days it is expanded inline on most targets). 2020-04-22 Jakub Jelinek <jakub@redhat.com> PR libfortran/94694 PR libfortran/94586 * configure.ac: Add math func checks for fmaf, fma and fmal. Add HAVE_INLINE_BUILTIN_COPYSIGN check. * c99_protos.h (copysign, fmaf, fma, fmal): Provide fallback prototypes. (HAVE_COPYSIGN, HAVE_FMAF, HAVE_FMA, HAVE_FMAL): Define if not defined and fallback version is provided. * intrinsics/c99_functions.c (copysign, fmaf, fma, fmal): Provide fallback implementations if possible * configure: Regenerated. * config.h.in: Regenerated. * math.m4 (GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1, GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2): New.		2020-04-22 21:34:19 +02:00
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abort.c
access.c
args.c
associated.c
c99_functions.c
chdir.c
chmod.c
clock.c
cpu_time.c
cshift0.c
ctime.c
date_and_time.c
dprod_r8.f90
dtime.c
env.c
eoshift0.c
eoshift2.c
erfc_scaled_inc.c
erfc_scaled.c
etime.c
execute_command_line.c
exit.c
extends_type_of.c
f2c_specifics.F90
fnum.c
gerror.c
getcwd.c
getlog.c
getXid.c
hostnm.c
ierrno.c
is_contiguous.c
ishftc.c
kill.c
link.c
move_alloc.c
mvbits.c
pack_generic.c
perror.c
rand.c
random_init.f90
random.c
rename.c
reshape_generic.c
reshape_packed.c
selected_char_kind.c
selected_int_kind.f90
selected_real_kind.f90
signal.c
size.c
sleep.c
spread_generic.c
stat.c
string_intrinsics_inc.c
string_intrinsics.c
symlnk.c
system_clock.c
system.c
time_1.h
time.c
trigd_lib.inc
trigd.c
trigd.inc
umask.c
unlink.c
unpack_generic.c