> Marcus Shawcroft wrote:
> > OK for commit?
> >
> > ChangeLog:
> > 2014-11-24 Wilco Dijkstra
> >
> > * gcc/config/aarch64/aarch64-protos.h (tune-params):
> > Add reasociation tuning parameters.
> > * gcc/config/aarch64/aarch64.c (TARGET_SCHED_REASSOCIATION_WIDTH):
> >
On 24 November 2014 at 13:46, Wilco Dijkstra wrote:
>> Richard Earnshaw wrote:
>> If all cores seem to benefit from FP reassociation set to 4, then it
>> seems odd that 4 is not also the default for generic.
>>
>> Andrew, you may need to pick a target-specific value for ThunderX; I
>> think Wilco
> Richard Earnshaw wrote:
> If all cores seem to benefit from FP reassociation set to 4, then it
> seems odd that 4 is not also the default for generic.
>
> Andrew, you may need to pick a target-specific value for ThunderX; I
> think Wilco has just picked something that seems plausible because he
On 29/10/14 12:55, Wilco Dijkstra wrote:
> This patch adds the TARGET_SCHED_REASSOCIATION_WIDTH hook. Separate settings
> for integer, floating
> point and vector modes are supported via the CPU tuning parameters. Setting
> the FP reassociation
> width to 4 improves FP performance on SPEC2000 by
This patch adds the TARGET_SCHED_REASSOCIATION_WIDTH hook. Separate settings
for integer, floating
point and vector modes are supported via the CPU tuning parameters. Setting the
FP reassociation
width to 4 improves FP performance on SPEC2000 by ~1.3%.
OK for commit?
ChangeLog:
2014-10-29 Wilc
