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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2019-03-28 19:14:04 +0000
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2019-07-08 17:22:22 -0300
commit105f2ed368ed61785a0a63ddb47fc62b89b58e0d (patch)
tree512ec7360e796ba58b8b44444b4a341a7a922379 /sysdeps/powerpc/powerpc64
parent0cccd37f70ba629a32773d6f253cb69a893fa652 (diff)
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math: Use wordsize-64 version for s_logb
  - The resulting binary difference on 32 bits architecture is
    minimum.  On i686-linux-gnu (with architecture optimization
    routine removed) there is no different using logb benchtests

  - It helps wordsize-64 architectures that use ldbl-opt.

  - It add some code simplification with reduction of duplicated
    implementations.

Checked on powerpc-linux-gnu (built without --with-cpu, with
--with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch),
powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+
and --disable-multi-arch).

	* sysdeps/ieee754/dbl-64/wordsize-64/s_logb.c: Move to ...
	* sysdeps/ieee754/dbl-64/s_logb.c: ... here.  Add work around for
	powerpc32 integer 0 converting to -0.

Reviewed-by: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com>
Diffstat (limited to 'sysdeps/powerpc/powerpc64')
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