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Author SHA1 Message Date
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2018-01-01 00:32:25 +00:00
Joseph Myers
011fba7e48 Use libm_alias_double for x86_64. 
Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch makes x86_64 libm function implementations use
libm_alias_double to define function aliases.

Tested with the glibc testsuite for x86_64, and tested with
build-many-glibcs.py for all its x86_64 configurations that installed
stripped shared libraries are unchanged by the patch.

	* sysdeps/x86_64/fpu/multiarch/s_atan.c: Include
	<libm-alias-double.h>.
	(atan): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/multiarch/s_ceil.c: Include
	<libm-alias-double.h>.
	(ceil): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/multiarch/s_floor.c: Include
	<libm-alias-double.h>.
	(floor): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/multiarch/s_fma.c: Include
	<libm-alias-double.h>.
	(fma): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/multiarch/s_nearbyint.c: Include
	<libm-alias-double.h>.
	(nearbyint): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/multiarch/s_rint.c: Include
	<libm-alias-double.h>.
	(rint): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/multiarch/s_sin.c: Include
	<libm-alias-double.h>.
	(sin): Define using libm_alias_double.
	(cos): Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_tan.c: Include
	<libm-alias-double.h>.
	(tan): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/multiarch/s_trunc.c: Include
	<libm-alias-double.h>.
	(trunc): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/s_copysign.S: Include <libm-alias-double.h>.
	(copysign): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/s_fabs.c: Include <libm-alias-double.h>.
	(fabs): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/s_fmax.S: Include <libm-alias-double.h>.
	(fmax): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/s_fmin.S: Include <libm-alias-double.h>.
	(fmin): Define using libm_alias_double.
	* sysdeps/x86_64/fpu/s_llrint.S: Include <libm-alias-double.h>.
	(llrint): Define using libm_alias_double.
	[!__ILP32__] (lrint): Likewise.
	* sysdeps/x86_64/x32/fpu/s_lrint.S: Include <libm-alias-double.h>.
	(lrint): Define using libm_alias_double.
 2017-11-29 19:01:21 +00:00
Joseph Myers
ae8372d7e4 Add SSE4.1 trunc, truncf (bug 20142). 
This patch adds SSE4.1 versions of trunc and truncf, using the roundsd
/ roundss instructions, similar to the versions of ceil, floor, rint
and nearbyint functions we already have.  In my testing with the glibc
benchtests these are about 30% faster than the C versions for double,
20% faster for float.

Tested for x86_64.

	[BZ #20142]
	* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
	Add s_trunc-c, s_truncf-c, s_trunc-sse4_1 and s_truncf-sse4_1.
	* sysdeps/x86_64/fpu/multiarch/s_trunc-c.c: New file.
	* sysdeps/x86_64/fpu/multiarch/s_trunc-sse4_1.S: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_trunc.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_truncf-c.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_truncf-sse4_1.S: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_truncf.c: Likewise.
 2017-09-20 16:54:05 +00:00