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authorH.J. Lu <hjl.tools@gmail.com>2017-12-12 15:32:58 -0800
committerH.J. Lu <hjl.tools@gmail.com>2017-12-12 15:32:58 -0800
commitac817e083b37a5c25d05cde8bde302d7a93ffc5e (patch)
tree779f6b5284d8548ff24bf96db06e347b011ea46c /sysdeps/aarch64
parenteb4285768bb0608e2c3381d0a5214cae83b1f282 (diff)
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x86-64: Add cosf with FMA
On Skylake, bench-cosf reports performance improvement:

            Before        After         Improvement
max        135.362       94.552            43%
min        8.532         7.688             11%
mean       17.1446       11.8128           45%

	* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
	Add s_cosf-sse2 and s_cosf-fma.
	(CFLAGS-s_cosf-fma.c): New.
	* sysdeps/x86_64/fpu/multiarch/s_cosf-fma.c: New file.
	* sysdeps/x86_64/fpu/multiarch/s_cosf-sse2.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_cosf.c: Likewise.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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