Re: Abt SIMD Emulation

[Ian Lance Taylor <iant at google dot com>]

Mohamed Shafi <shafitvm@yahoo.com> writes:

This question is more appropriate for the gcc-help mailing list than
for the gcc mailing list.

> For targets which doesn't have simd hardware support like fr30 ,  simd stuff is emulated?

Yes, if you use __attribute__ ((vector_size (NN))) for a target which
does not support vector registers of that size, gcc will emulate the
vector handling.

> Is there some flags/macros in gcc to indicate that?

To indicate what?

> How is it done in other targets which deosnt have the hardware support?

In the obvious tedious way: as a loop over the elements.

Ian