Re: [PATCH] Fix up _mm_f{,n}m{add,sub}_s{s,d} (PR target/54564)

[Richard Henderson]

On 09/13/2012 12:03 PM, Jakub Jelinek wrote:
> How could you extend these builtins to FMA4 BTW?  Doesn't FMA4 zero up the
> high elements?

Duh.  You're absolutely right.  I'd mis-read the document as clearing the
high lane of the %ymm register only.


r~