libmvec in gcc to have vector math in fortran

Szabolcs Nagy
Fri Jun 15 08:40:00 GMT 2018

On 15/06/18 08:59, Florian Weimer wrote:
> * Richard Biener:
>> 'pure' makes it pure but there doesn't seem to be a way to make it const?
> Does Fortran support setting the rounding mode?

yes, but vec math is only enabled with -ffast-math (so it can
assume -fno-rounding-math)

> In C, sin is not const because it depends on the current rounding
> mode.

hm i don't see const in glibc even in case of -ffast-math compilation,
i wonder if that can be changed.

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