wide-int, ada

Richard Biener richard.guenther@gmail.com
Tue Nov 26 16:30:00 GMT 2013


On Tue, Nov 26, 2013 at 2:44 PM, Richard Earnshaw <rearnsha@arm.com> wrote:
> On 26/11/13 09:18, Eric Botcazou wrote:
>>> you are correct - this was an incorrect change.   I believe that the
>>> patch below would be correct, but it is impossible to test it because (i
>>> believe) that gcc no longer works if the host_bits_per_wide_int is 32.
>>> I could be wrong about this but if i am correct, what do you want me to do?
>>
>> While you're right that most mainstream architectures now require a 64-bit
>> HWI, not all of them do according to config.gcc, so I don't think that this
>> path is entirely dead yet.  I'll carry out the testing once we agree on the
>> final change.
>
> I'm hoping, once this patch series is in that we might be able to
> migrate the ARM port back to supporting a 32-bit HWI.  The driving
> factor behind the original switch was supporting 128-bit constants for
> Neon and these patches should resolve that.

i?86 would be another candidate (if you don't build a compiler with -m64
support).

Richard.

> R.
>
>



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