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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-03-29 18:15:28 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-04-01 06:36:51 -0500
commit60c414c346a1d5ef0510ffbdc0ab75f288ee4d3f (patch)
tree479eb937a9496619acfb24db9a6a48831f9c3fb3 /benchtests/rint-inputs
parent6142896d53d0e8e8abe5dd0494380c45acc1a919 (diff)
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PowerPC: remove branch prediction from rint implementation
The branch prediction hints is actually hurts performance in this case.
The assembly implementation make two assumptions: 1. 'fabs (x) < 2^52'
is unlikely and 2. 'x > 0.0' is unlike (if 1. is true). Since it a
general floating point function, expected input is not bounded and then
it is better to let the hardware handle the branches.
Diffstat (limited to 'benchtests/rint-inputs')
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diff --git a/benchtests/rint-inputs b/benchtests/rint-inputs
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+-4503599627370497.0