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b3f27d8150
glibc/sysdeps/ieee754/ldbl-opt/Makefile
Joseph Myers b3f27d8150 Add narrowing fma functions 
This patch adds the narrowing fused multiply-add functions from TS
18661-1 / TS 18661-3 / C2X to glibc's libm: ffma, ffmal, dfmal,
f32fmaf64, f32fmaf32x, f32xfmaf64 for all configurations; f32fmaf64x,
f32fmaf128, f64fmaf64x, f64fmaf128, f32xfmaf64x, f32xfmaf128,
f64xfmaf128 for configurations with _Float64x and _Float128;
__f32fmaieee128 and __f64fmaieee128 aliases in the powerpc64le case
(for calls to ffmal and dfmal when long double is IEEE binary128).
Corresponding tgmath.h macro support is also added.

The changes are mostly similar to those for the other narrowing
functions previously added, especially that for sqrt, so the
description of those generally applies to this patch as well.  As with
sqrt, I reused the same test inputs in auto-libm-test-in as for
non-narrowing fma rather than adding extra or separate inputs for
narrowing fma.  The tests in libm-test-narrow-fma.inc also follow
those for non-narrowing fma.

The non-narrowing fma has a known bug (bug 6801) that it does not set
errno on errors (overflow, underflow, Inf * 0, Inf - Inf).  Rather
than fixing this or having narrowing fma check for errors when
non-narrowing does not (complicating the cases when narrowing fma can
otherwise be an alias for a non-narrowing function), this patch does
not attempt to check for errors from narrowing fma and set errno; the
CHECK_NARROW_FMA macro is still present, but as a placeholder that
does nothing, and this missing errno setting is considered to be
covered by the existing bug rather than needing a separate open bug.
missing-errno annotations are duly added to many of the
auto-libm-test-in test inputs for fma.

This completes adding all the new functions from TS 18661-1 to glibc,
so will be followed by corresponding stdc-predef.h changes to define
__STDC_IEC_60559_BFP__ and __STDC_IEC_60559_COMPLEX__, as the support
for TS 18661-1 will be at a similar level to that for C standard
floating-point facilities up to C11 (pragmas not implemented, but
library functions done).  (There are still further changes to be done
to implement changes to the types of fromfp functions from N2548.)

Tested as followed: natively with the full glibc testsuite for x86_64
(GCC 11, 7, 6) and x86 (GCC 11); with build-many-glibcs.py with GCC
11, 7 and 6; cross testing of math/ tests for powerpc64le, powerpc32
hard float, mips64 (all three ABIs, both hard and soft float).  The
different GCC versions are to cover the different cases in tgmath.h
and tgmath.h tests properly (GCC 6 has _Float* only as typedefs in
glibc headers, GCC 7 has proper _Float* support, GCC 8 adds
__builtin_tgmath).
2021-09-22 21:25:31 +00:00

214 lines
8.6 KiB
Makefile
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# The`long double' type is a distinct type we support if
# -mlong-double-128 option is used (or when it becomes a default
# when -mlong-double-64 is not used).
long-double-fcts = yes
ifeq (,$(filter -mlong-double-128,$(sysdep-CFLAGS)))
sysdep-CFLAGS += -mlong-double-128
endif
ifeq ($(subdir),math)
libm-routines += s_nexttowardfd
routines += nldbl-compat
extra-libs += libnldbl
libnldbl-calls = asprintf dprintf fprintf fscanf fwprintf fwscanf iovfscanf \
obstack_printf obstack_vprintf printf scanf snprintf \
sprintf sscanf swprintf swscanf vasprintf vdprintf vfprintf \
vfscanf vfwprintf vfwscanf vprintf vscanf vsnprintf \
vsprintf vsscanf vswprintf vswscanf vwprintf vwscanf \
wprintf wscanf printf_fp printf_size \
fprintf_chk fwprintf_chk printf_chk snprintf_chk sprintf_chk \
swprintf_chk vfprintf_chk vfwprintf_chk vprintf_chk \
vsnprintf_chk vsprintf_chk vswprintf_chk vwprintf_chk \
wprintf_chk asprintf_chk vasprintf_chk dprintf_chk \
vdprintf_chk obstack_printf_chk obstack_vprintf_chk \
syslog syslog_chk vsyslog vsyslog_chk \
strfmon strfmon_l \
strfroml \
strtold strtold_l strtoldint wcstold wcstold_l wcstoldint \
qecvt qfcvt qgcvt qecvt_r qfcvt_r \
isinf isnan finite signbit scalb log2 lgamma_r ceil \
significand acos asin atan atan2 cos sin tan cosh sinh \
tanh acosh asinh atanh exp log log10 exp10 expm1 \
log1p logb exp2 sqrt cbrt fabs floor j0 j1 y0 y1 erf erfc \
lgamma tgamma gamma rint nearbyint round trunc \
copysign fdim fmax fmin nextafter pow hypot fmod \
remainder ldexp scalbn frexp modf scalbln fma nan sincos \
jn yn ilogb remquo lrint lround llrint llround nexttowardf \
nexttoward conj cacos cacosh casin catan catanh ccos ccosh \
casinh cexp clog cproj csin csinh csqrt ctan ctanh cpow \
cabs carg cimag creal clog10 \
isoc99_scanf isoc99_fscanf isoc99_sscanf \
isoc99_vscanf isoc99_vfscanf isoc99_vsscanf \
isoc99_wscanf isoc99_fwscanf isoc99_swscanf \
isoc99_vwscanf isoc99_vfwscanf isoc99_vswscanf \
nextup nextdown totalorder totalordermag getpayload \
canonicalize setpayload setpayloadsig llogb fmaxmag fminmag \
roundeven fromfp ufromfp fromfpx ufromfpx fadd dadd \
fdiv ddiv ffma dfma fmul dmul fsqrt dsqrt fsub dsub
libnldbl-routines = $(libnldbl-calls:%=nldbl-%)
libnldbl-inhibit-o = $(object-suffixes)
libnldbl-static-only-routines = $(libnldbl-routines)
extra-objs += $(addsuffix .oS, $(libnldbl-routines))
CFLAGS-nldbl-acos.c = -fno-builtin-acosl
CFLAGS-nldbl-acosh.c = -fno-builtin-acoshl
CFLAGS-nldbl-asin.c = -fno-builtin-asinl
CFLAGS-nldbl-asinh.c = -fno-builtin-asinhl
CFLAGS-nldbl-atan.c = -fno-builtin-atanl
CFLAGS-nldbl-atan2.c = -fno-builtin-atan2l
CFLAGS-nldbl-atanh.c = -fno-builtin-atanhl
CFLAGS-nldbl-cabs.c = -fno-builtin-cabsl
CFLAGS-nldbl-cacos.c = -fno-builtin-cacosl
CFLAGS-nldbl-cacosh.c = -fno-builtin-cacoshl
CFLAGS-nldbl-canonicalize.c = -fno-builtin-canonicalizel
CFLAGS-nldbl-carg.c = -fno-builtin-cargl
CFLAGS-nldbl-casin.c = -fno-builtin-casinl
CFLAGS-nldbl-casinh.c = -fno-builtin-casinhl
CFLAGS-nldbl-catan.c = -fno-builtin-catanl
CFLAGS-nldbl-catanh.c = -fno-builtin-catanhl
CFLAGS-nldbl-cbrt.c = -fno-builtin-cbrtl
CFLAGS-nldbl-ccos.c = -fno-builtin-ccosl
CFLAGS-nldbl-ccosh.c = -fno-builtin-ccoshl
CFLAGS-nldbl-ceil.c = -fno-builtin-ceill
CFLAGS-nldbl-cexp.c = -fno-builtin-cexpl
CFLAGS-nldbl-cimag.c = -fno-builtin-cimagl
CFLAGS-nldbl-clog.c = -fno-builtin-clogl
CFLAGS-nldbl-clog10.c = -fno-builtin-clog10l
CFLAGS-nldbl-conj.c = -fno-builtin-conjl
CFLAGS-nldbl-copysign.c = -fno-builtin-copysignl
CFLAGS-nldbl-cos.c = -fno-builtin-cosl
CFLAGS-nldbl-cosh.c = -fno-builtin-coshl
CFLAGS-nldbl-cpow.c = -fno-builtin-cpowl
CFLAGS-nldbl-cproj.c = -fno-builtin-cprojl
CFLAGS-nldbl-creal.c = -fno-builtin-creall
CFLAGS-nldbl-csin.c = -fno-builtin-csinl
CFLAGS-nldbl-csinh.c = -fno-builtin-csinhl
CFLAGS-nldbl-csqrt.c = -fno-builtin-csqrtl
CFLAGS-nldbl-ctan.c = -fno-builtin-ctanl
CFLAGS-nldbl-ctanh.c = -fno-builtin-ctanhl
CFLAGS-nldbl-dadd.c = -fno-builtin-daddl
CFLAGS-nldbl-ddiv.c = -fno-builtin-ddivl
CFLAGS-nldbl-dfma.c = -fno-builtin-dfmal
CFLAGS-nldbl-dmul.c = -fno-builtin-dmull
CFLAGS-nldbl-dsqrt.c = -fno-builtin-dsqrtl
CFLAGS-nldbl-dsub.c = -fno-builtin-dsubl
CFLAGS-nldbl-erf.c = -fno-builtin-erfl
CFLAGS-nldbl-erfc.c = -fno-builtin-erfcl
CFLAGS-nldbl-exp.c = -fno-builtin-expl
CFLAGS-nldbl-exp10.c = -fno-builtin-exp10l
CFLAGS-nldbl-exp2.c = -fno-builtin-exp2l
CFLAGS-nldbl-expm1.c = -fno-builtin-expm1l
CFLAGS-nldbl-fabs.c = -fno-builtin-fabsl
CFLAGS-nldbl-fadd.c = -fno-builtin-faddl
CFLAGS-nldbl-fdim.c = -fno-builtin-fdiml
CFLAGS-nldbl-fdiv.c = -fno-builtin-fdivl
CFLAGS-nldbl-ffma.c = -fno-builtin-ffmal
CFLAGS-nldbl-finite.c = -fno-builtin-finitel
CFLAGS-nldbl-floor.c = -fno-builtin-floorl
CFLAGS-nldbl-fma.c = -fno-builtin-fmal
CFLAGS-nldbl-fmax.c = -fno-builtin-fmaxl
CFLAGS-nldbl-fmaxmag.c = -fno-builtin-fmaxmagl
CFLAGS-nldbl-fmin.c = -fno-builtin-fminl
CFLAGS-nldbl-fminmag.c = -fno-builtin-fminmagl
CFLAGS-nldbl-fmod.c = -fno-builtin-fmodl
CFLAGS-nldbl-fmul.c = -fno-builtin-fmull
CFLAGS-nldbl-frexp.c = -fno-builtin-frexpl
CFLAGS-nldbl-fromfp.c = -fno-builtin-fromfpl
CFLAGS-nldbl-fromfpx.c = -fno-builtin-fromfpxl
CFLAGS-nldbl-fsqrt.c = -fno-builtin-fsqrtl
CFLAGS-nldbl-fsub.c = -fno-builtin-fsubl
CFLAGS-nldbl-gamma.c = -fno-builtin-gammal
CFLAGS-nldbl-getpayload.c = -fno-builtin-getpayloadl
CFLAGS-nldbl-hypot.c = -fno-builtin-hypotl
CFLAGS-nldbl-ilogb.c = -fno-builtin-ilogbl
CFLAGS-nldbl-isinf.c = -fno-builtin-isinfl
CFLAGS-nldbl-isnan.c = -fno-builtin-isnanl
CFLAGS-nldbl-j0.c = -fno-builtin-j0l
CFLAGS-nldbl-j1.c = -fno-builtin-j1l
CFLAGS-nldbl-jn.c = -fno-builtin-jnl
CFLAGS-nldbl-ldexp.c = -fno-builtin-ldexpl
CFLAGS-nldbl-lgamma.c = -fno-builtin-lgammal
CFLAGS-nldbl-lgamma_r.c = -fno-builtin-lgammal_r
CFLAGS-nldbl-llogb.c = -fno-builtin-llogbl
CFLAGS-nldbl-llrint.c = -fno-builtin-llrintl
CFLAGS-nldbl-llround.c = -fno-builtin-llroundl
CFLAGS-nldbl-log.c = -fno-builtin-logl
CFLAGS-nldbl-log10.c = -fno-builtin-log10l
CFLAGS-nldbl-log1p.c = -fno-builtin-log1pl
CFLAGS-nldbl-log2.c = -fno-builtin-log2l
CFLAGS-nldbl-logb.c = -fno-builtin-logbl
CFLAGS-nldbl-lrint.c = -fno-builtin-lrintl
CFLAGS-nldbl-lround.c = -fno-builtin-lroundl
CFLAGS-nldbl-modf.c = -fno-builtin-modfl
CFLAGS-nldbl-nan.c = -fno-builtin-nanl
CFLAGS-nldbl-nearbyint.c = -fno-builtin-nearbyintl
CFLAGS-nldbl-nextafter.c = -fno-builtin-nextafterl
CFLAGS-nldbl-nextdown.c = -fno-builtin-nextdownl
CFLAGS-nldbl-nexttoward.c = -fno-builtin-nexttoward -fno-builtin-nexttowardl
CFLAGS-nldbl-nexttowardf.c = -fno-builtin-nexttowardf
CFLAGS-nldbl-nextup.c = -fno-builtin-nextupl
CFLAGS-nldbl-pow.c = -fno-builtin-powl
CFLAGS-nldbl-remainder.c = -fno-builtin-remainderl -fno-builtin-dreml
CFLAGS-nldbl-remquo.c = -fno-builtin-remquol
CFLAGS-nldbl-rint.c = -fno-builtin-rintl
CFLAGS-nldbl-round.c = -fno-builtin-roundl
CFLAGS-nldbl-roundeven.c = -fno-builtin-roundevenl
CFLAGS-nldbl-scalb.c = -fno-builtin-scalbl
CFLAGS-nldbl-scalbln.c = -fno-builtin-scalblnl
CFLAGS-nldbl-scalbn.c = -fno-builtin-scalbnl
CFLAGS-nldbl-setpayload.c = -fno-builtin-setpayloadl
CFLAGS-nldbl-setpayloadsig.c = -fno-builtin-setpayloadsigl
CFLAGS-nldbl-significand.c = -fno-builtin-significandl
CFLAGS-nldbl-sin.c = -fno-builtin-sinl
CFLAGS-nldbl-sincos.c = -fno-builtin-sincosl
CFLAGS-nldbl-sinh.c = -fno-builtin-sinhl
CFLAGS-nldbl-sqrt.c = -fno-builtin-sqrtl
CFLAGS-nldbl-tan.c = -fno-builtin-tanl
CFLAGS-nldbl-tanh.c = -fno-builtin-tanhl
CFLAGS-nldbl-tgamma.c = -fno-builtin-tgammal
CFLAGS-nldbl-totalorder.c = -fno-builtin-totalorderl
CFLAGS-nldbl-totalordermag.c = -fno-builtin-totalordermagl
CFLAGS-nldbl-trunc.c = -fno-builtin-truncl
CFLAGS-nldbl-ufromfp.c = -fno-builtin-ufromfpl
CFLAGS-nldbl-ufromfpx.c = -fno-builtin-ufromfpxl
CFLAGS-nldbl-y0.c = -fno-builtin-y0l
CFLAGS-nldbl-y1.c = -fno-builtin-y1l
CFLAGS-nldbl-yn.c = -fno-builtin-ynl
tests += test-narrow-macros-ldbl-64 test-nldbl-redirect \
test-redirection-ldbl-64
CFLAGS-test-narrow-macros-ldbl-64.c += -mlong-double-64
CFLAGS-test-nldbl-redirect.c += -mlong-double-64
CFLAGS-test-redirection-ldbl-64.c += -mlong-double-64
$(objpfx)test-nldbl-redirect: $(objpfx)libnldbl_nonshared.a
endif
# Tests for argp.h functions (reusing the relevant tests from argp/)
ifeq ($(subdir),argp)
tests-internal += tst-nldbl-argp
$(objpfx)tst-nldbl-argp.c: tst-ldbl-argp.c
cp $< $@
CFLAGS-tst-nldbl-argp.c += -mlong-double-64
endif
# Tests for err.h and error.h functions (reusing the relevant tests from
# misc/).
ifeq ($(subdir), misc)
tests-internal += tst-nldbl-warn
tests-internal += tst-nldbl-error
$(objpfx)tst-nldbl-warn.c: tst-ldbl-warn.c
cp $< $@
$(objpfx)tst-nldbl-error.c: tst-ldbl-error.c
cp $< $@
CFLAGS-tst-nldbl-warn.c += -mlong-double-64
CFLAGS-tst-nldbl-error.c += -mlong-double-64
endif
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