Richard Earnshaw writes:
>> gcc/
>> * config/arm/arm.h (CANNOT_CHANGE_MODE_CLASS): Restrict FPA_REGS
>> case to VFPv1.
>>
>
> I think adding a comment that VFPv1 would require a restriction but that
> that isn't supported would be useful. Then if the worst happens it will
> be one less
On Fri, 2011-03-25 at 09:28 +, Richard Sandiford wrote:
> Richard Earnshaw writes:
> > On Thu, 2011-03-24 at 15:40 +, Richard Sandiford wrote:
> >> gcc/
> >>* config/arm/arm.h (CANNOT_CHANGE_MODE_CLASS): Restrict FPA_REGS
> >>case to VFPv1.
> >>
> >
> > GCC doesn't support VFPv1
Richard Earnshaw writes:
> On Thu, 2011-03-24 at 15:40 +, Richard Sandiford wrote:
>> gcc/
>> * config/arm/arm.h (CANNOT_CHANGE_MODE_CLASS): Restrict FPA_REGS
>> case to VFPv1.
>>
>
> GCC doesn't support VFPv1 (see the all_fpus table), and I don't think
> many chips based on that ev
On Thu, 2011-03-24 at 15:40 +, Richard Sandiford wrote:
> We currently generate very poor code for tests like:
>
> #include
>
> void
> foo (uint32_t *a, uint32_t *b, uint32_t *c)
> {
> uint32x4x3_t x, y;
>
> x = vld3q_u32 (a);
> y = vld3q_u32 (b);
> x.val[0] = vaddq_u32 (x.val[0],
