On 08/20/2017 06:59 PM, Alan Modra wrote:
> On Sun, Aug 20, 2017 at 08:00:53AM -0500, Segher Boessenkool wrote:
>> Hi Alan,
>>
>> On Sat, Aug 19, 2017 at 12:19:35AM +0930, Alan Modra wrote:
>>> +Flushing registers to memory has performance implications and may be
>>> +an issue for time-sensitive co
On Mon, Aug 21, 2017 at 10:29:30AM +0930, Alan Modra wrote:
> Fixed in this revised patch. The only controversial aspect now should
> be whether those array casts ought to be officially blessed. I've
> checked that "=m" (*(T (*)[]) ptr), "=m" (*(T (*)[n]) ptr), and
> "=m" (*(T (*)[10]) ptr), all
On Sun, Aug 20, 2017 at 08:00:53AM -0500, Segher Boessenkool wrote:
> Hi Alan,
>
> On Sat, Aug 19, 2017 at 12:19:35AM +0930, Alan Modra wrote:
> > +Flushing registers to memory has performance implications and may be
> > +an issue for time-sensitive code. You can provide better information
> > +t
Hi Alan,
On Sat, Aug 19, 2017 at 12:19:35AM +0930, Alan Modra wrote:
> +Flushing registers to memory has performance implications and may be
> +an issue for time-sensitive code. You can provide better information
> +to GCC to avoid this, as shown in the following examples. At a
> +minimum, alias
