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authorH.J. Lu <hjl.tools@gmail.com>2017-12-05 08:32:19 -0800
committerH.J. Lu <hjl.tools@gmail.com>2017-12-05 08:47:27 -0800
commit91c318e7b91467984bf68014ef37539d084a34ab (patch)
tree2ec4488545ff6dfe0495cd33f07e29a38b17acd4 /sysdeps/ieee754/ldbl-128/s_tanl.c
parentc7e882b70563289ac441f2a3565846221e111d00 (diff)
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s_sinf.c: Replace floor with simple casts
Since s_sinf.c either assigns the return value of floor to integer or
passes double converted from integer to floor, this patch replaces
floor with simple casts.

Also since long == int for 32-bit targets, we can use long instead of
int to avoid 64-bit integer for 64-bit targets.

On Skylake, bench-sinf reports performance improvement:

           Before        After         Improvement
max        130.566       129.564           30%
min        7.704         7.706             0%
mean       21.8188       19.1363           30%

	* sysdeps/ieee754/flt-32/s_sinf.c (reduced): Replace long with
	int.
	(SINF_FUNC): Likewise.  Replace floor with simple casts.
Diffstat (limited to 'sysdeps/ieee754/ldbl-128/s_tanl.c')
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