eb3c12c784
TS 18661-1 defines functions for manipulating the payloads of NaNs. This patch implements the setpayload functions for glibc; these set a number (pointed to by a function argument) to a quiet NaN with the given payload, or to +0 if the given payload is not valid. The implementations are structured to allow the substance of the implementation to be shared with the setpayloadsig functions when those are added. The semantics in the TS are not entirely clear in the case where the payload passed to the function is zero (see discussion on the WG14 reflector last month). This patch implements what seems the most sensible interpretation, that -0 is never valid to give as the payload, but +0 is valid in the case where the kind of NaN being generated has its high mantissa bit set so payload 0 is actually possible in such a NaN. Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (setpayload): New declaration. * math/Versions (setpayload): New libm symbol at version GLIBC_2.25. (setpayloadf): Likewise. (setpayloadl): Likewise. * math/Makefile (libm-calls): Add s_setpayloadF. * math/libm-test.inc (struct test_Ffp_b1_data): Rename to struct test_Ff_b1_data. (RUN_TEST_Ff_b1): New macro. (RUN_TEST_LOOP_Ff_b1): Likewise. (canonicalize_test_data): Update type. (setpayload_test_data): New array. (setpayload_test): New function. (main): Call setpayload_test. * manual/arith.texi (FP Bit Twiddling): Document setpayload, setpayloadf and setpayloadl. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/ieee754/dbl-64/s_setpayload.c: New file. * sysdeps/ieee754/dbl-64/s_setpayload_main.c: Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_setpayload_main.c: Likewise. * sysdeps/ieee754/flt-32/s_setpayloadf.c: Likewise. * sysdeps/ieee754/flt-32/s_setpayloadf_main.c: Likewise. * sysdeps/ieee754/ldbl-128/s_setpayloadl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_setpayloadl_main.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_setpayloadl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_setpayloadl_main.c: Likewise. * sysdeps/ieee754/ldbl-96/s_setpayloadl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_setpayloadl_main.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-setpayload.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add setpayload. (CFLAGS-nldbl-setpayload.c): New variable. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
158 lines
6.7 KiB
Makefile
158 lines
6.7 KiB
Makefile
# The`long double' type is a distinct type we support if
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# -mlong-double-128 option is used (or when it becomes a default
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# when -mlong-double-64 is not used).
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long-double-fcts = yes
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ifeq (,$(filter -mlong-double-128,$(sysdep-CFLAGS)))
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sysdep-CFLAGS += -mlong-double-128
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endif
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ifeq ($(subdir),math)
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libm-routines += s_nexttowardfd
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routines += math_ldbl_opt nldbl-compat
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extra-libs += libnldbl
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libnldbl-calls = asprintf dprintf fprintf fscanf fwprintf fwscanf iovfscanf \
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obstack_printf obstack_vprintf printf scanf snprintf \
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sprintf sscanf swprintf swscanf vasprintf vdprintf vfprintf \
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vfscanf vfwprintf vfwscanf vprintf vscanf vsnprintf \
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vsprintf vsscanf vswprintf vswscanf vwprintf vwscanf \
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wprintf wscanf printf_fp printf_size \
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fprintf_chk fwprintf_chk printf_chk snprintf_chk sprintf_chk \
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swprintf_chk vfprintf_chk vfwprintf_chk vprintf_chk \
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vsnprintf_chk vsprintf_chk vswprintf_chk vwprintf_chk \
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wprintf_chk asprintf_chk vasprintf_chk dprintf_chk \
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vdprintf_chk obstack_printf_chk obstack_vprintf_chk \
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syslog syslog_chk vsyslog vsyslog_chk \
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strfmon strfmon_l \
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strfroml \
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strtold strtold_l strtoldint wcstold wcstold_l wcstoldint \
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qecvt qfcvt qgcvt qecvt_r qfcvt_r \
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isinf isnan finite signbit scalb log2 lgamma_r ceil \
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significand acos asin atan atan2 cos sin tan cosh sinh \
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tanh acosh asinh atanh exp log log10 exp10 pow10 expm1 \
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log1p logb exp2 sqrt cbrt fabs floor j0 j1 y0 y1 erf erfc \
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lgamma tgamma gamma rint nearbyint round trunc \
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copysign fdim fmax fmin nextafter pow hypot fmod \
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remainder ldexp scalbn frexp modf scalbln fma nan sincos \
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jn yn ilogb remquo lrint lround llrint llround nexttowardf \
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nexttoward conj cacos cacosh casin catan catanh ccos ccosh \
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casinh cexp clog cproj csin csinh csqrt ctan ctanh cpow \
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cabs carg cimag creal clog10 \
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isoc99_scanf isoc99_fscanf isoc99_sscanf \
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isoc99_vscanf isoc99_vfscanf isoc99_vsscanf \
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isoc99_wscanf isoc99_fwscanf isoc99_swscanf \
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isoc99_vwscanf isoc99_vfwscanf isoc99_vswscanf \
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nextup nextdown totalorder totalordermag getpayload \
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canonicalize setpayload
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libnldbl-routines = $(libnldbl-calls:%=nldbl-%)
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libnldbl-inhibit-o = $(object-suffixes)
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libnldbl-static-only-routines = $(libnldbl-routines)
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extra-objs += $(addsuffix .oS, $(libnldbl-routines))
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CFLAGS-nldbl-acos.c = -fno-builtin-acosl
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CFLAGS-nldbl-acosh.c = -fno-builtin-acoshl
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CFLAGS-nldbl-asin.c = -fno-builtin-asinl
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CFLAGS-nldbl-asinh.c = -fno-builtin-asinhl
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CFLAGS-nldbl-atan.c = -fno-builtin-atanl
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CFLAGS-nldbl-atan2.c = -fno-builtin-atan2l
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CFLAGS-nldbl-atanh.c = -fno-builtin-atanhl
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CFLAGS-nldbl-cabs.c = -fno-builtin-cabsl
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CFLAGS-nldbl-cacos.c = -fno-builtin-cacosl
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CFLAGS-nldbl-cacosh.c = -fno-builtin-cacoshl
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CFLAGS-nldbl-canonicalize.c = -fno-builtin-canonicalizel
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CFLAGS-nldbl-carg.c = -fno-builtin-cargl
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CFLAGS-nldbl-casin.c = -fno-builtin-casinl
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CFLAGS-nldbl-casinh.c = -fno-builtin-casinhl
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CFLAGS-nldbl-catan.c = -fno-builtin-catanl
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CFLAGS-nldbl-catanh.c = -fno-builtin-catanhl
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CFLAGS-nldbl-cbrt.c = -fno-builtin-cbrtl
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CFLAGS-nldbl-ccos.c = -fno-builtin-ccosl
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CFLAGS-nldbl-ccosh.c = -fno-builtin-ccoshl
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CFLAGS-nldbl-ceil.c = -fno-builtin-ceill
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CFLAGS-nldbl-cexp.c = -fno-builtin-cexpl
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CFLAGS-nldbl-cimag.c = -fno-builtin-cimagl
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CFLAGS-nldbl-clog.c = -fno-builtin-clogl
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CFLAGS-nldbl-clog10.c = -fno-builtin-clog10l
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CFLAGS-nldbl-conj.c = -fno-builtin-conjl
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CFLAGS-nldbl-copysign.c = -fno-builtin-copysignl
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CFLAGS-nldbl-cos.c = -fno-builtin-cosl
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CFLAGS-nldbl-cosh.c = -fno-builtin-coshl
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CFLAGS-nldbl-cpow.c = -fno-builtin-cpowl
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CFLAGS-nldbl-cproj.c = -fno-builtin-cprojl
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CFLAGS-nldbl-creal.c = -fno-builtin-creall
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CFLAGS-nldbl-csin.c = -fno-builtin-csinl
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CFLAGS-nldbl-csinh.c = -fno-builtin-csinhl
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CFLAGS-nldbl-csqrt.c = -fno-builtin-csqrtl
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CFLAGS-nldbl-ctan.c = -fno-builtin-ctanl
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CFLAGS-nldbl-ctanh.c = -fno-builtin-ctanhl
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CFLAGS-nldbl-erf.c = -fno-builtin-erfl
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CFLAGS-nldbl-erfc.c = -fno-builtin-erfcl
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CFLAGS-nldbl-exp.c = -fno-builtin-expl
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CFLAGS-nldbl-exp10.c = -fno-builtin-exp10l
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CFLAGS-nldbl-exp2.c = -fno-builtin-exp2l
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CFLAGS-nldbl-expm1.c = -fno-builtin-expm1l
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CFLAGS-nldbl-fabs.c = -fno-builtin-fabsl
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CFLAGS-nldbl-fdim.c = -fno-builtin-fdiml
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CFLAGS-nldbl-finite.c = -fno-builtin-finitel
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CFLAGS-nldbl-floor.c = -fno-builtin-floorl
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CFLAGS-nldbl-fma.c = -fno-builtin-fmal
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CFLAGS-nldbl-fmax.c = -fno-builtin-fmaxl
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CFLAGS-nldbl-fmin.c = -fno-builtin-fminl
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CFLAGS-nldbl-fmod.c = -fno-builtin-fmodl
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CFLAGS-nldbl-frexp.c = -fno-builtin-frexpl
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CFLAGS-nldbl-gamma.c = -fno-builtin-gammal
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CFLAGS-nldbl-getpayload.c = -fno-builtin-getpayloadl
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CFLAGS-nldbl-hypot.c = -fno-builtin-hypotl
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CFLAGS-nldbl-ilogb.c = -fno-builtin-ilogbl
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CFLAGS-nldbl-isinf.c = -fno-builtin-isinfl
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CFLAGS-nldbl-isnan.c = -fno-builtin-isnanl
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CFLAGS-nldbl-j0.c = -fno-builtin-j0l
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CFLAGS-nldbl-j1.c = -fno-builtin-j1l
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CFLAGS-nldbl-jn.c = -fno-builtin-jnl
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CFLAGS-nldbl-ldexp.c = -fno-builtin-ldexpl
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CFLAGS-nldbl-lgamma.c = -fno-builtin-lgammal
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CFLAGS-nldbl-lgamma_r.c = -fno-builtin-lgammal_r
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CFLAGS-nldbl-llrint.c = -fno-builtin-llrintl
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CFLAGS-nldbl-llround.c = -fno-builtin-llroundl
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CFLAGS-nldbl-log.c = -fno-builtin-logl
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CFLAGS-nldbl-log10.c = -fno-builtin-log10l
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CFLAGS-nldbl-log1p.c = -fno-builtin-log1pl
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CFLAGS-nldbl-log2.c = -fno-builtin-log2l
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CFLAGS-nldbl-logb.c = -fno-builtin-logbl
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CFLAGS-nldbl-lrint.c = -fno-builtin-lrintl
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CFLAGS-nldbl-lround.c = -fno-builtin-lroundl
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CFLAGS-nldbl-modf.c = -fno-builtin-modfl
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CFLAGS-nldbl-nan.c = -fno-builtin-nanl
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CFLAGS-nldbl-nearbyint.c = -fno-builtin-nearbyintl
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CFLAGS-nldbl-nextafter.c = -fno-builtin-nextafterl
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CFLAGS-nldbl-nextdown.c = -fno-builtin-nextdownl
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CFLAGS-nldbl-nexttoward.c = -fno-builtin-nexttoward -fno-builtin-nexttowardl
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CFLAGS-nldbl-nexttowardf.c = -fno-builtin-nexttowardf
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CFLAGS-nldbl-nextup.c = -fno-builtin-nextupl
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CFLAGS-nldbl-pow.c = -fno-builtin-powl
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CFLAGS-nldbl-pow10.c = -fno-builtin-pow10l
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CFLAGS-nldbl-remainder.c = -fno-builtin-remainderl -fno-builtin-dreml
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CFLAGS-nldbl-remquo.c = -fno-builtin-remquol
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CFLAGS-nldbl-rint.c = -fno-builtin-rintl
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CFLAGS-nldbl-round.c = -fno-builtin-roundl
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CFLAGS-nldbl-scalb.c = -fno-builtin-scalbl
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CFLAGS-nldbl-scalbln.c = -fno-builtin-scalblnl
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CFLAGS-nldbl-scalbn.c = -fno-builtin-scalbnl
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CFLAGS-nldbl-setpayload.c = -fno-builtin-setpayloadl
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CFLAGS-nldbl-significand.c = -fno-builtin-significandl
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CFLAGS-nldbl-sin.c = -fno-builtin-sinl
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CFLAGS-nldbl-sincos.c = -fno-builtin-sincosl
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CFLAGS-nldbl-sinh.c = -fno-builtin-sinhl
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CFLAGS-nldbl-sqrt.c = -fno-builtin-sqrtl
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CFLAGS-nldbl-tan.c = -fno-builtin-tanl
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CFLAGS-nldbl-tanh.c = -fno-builtin-tanhl
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CFLAGS-nldbl-tgamma.c = -fno-builtin-tgammal
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CFLAGS-nldbl-totalorder.c = -fno-builtin-totalorderl
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CFLAGS-nldbl-totalordermag.c = -fno-builtin-totalordermagl
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CFLAGS-nldbl-trunc.c = -fno-builtin-truncl
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CFLAGS-nldbl-y0.c = -fno-builtin-y0l
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CFLAGS-nldbl-y1.c = -fno-builtin-y1l
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CFLAGS-nldbl-yn.c = -fno-builtin-ynl
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endif
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