Hi James,
On 09/01/19 17:50, James Greenhalgh wrote:
On Fri, Dec 21, 2018 at 06:30:49AM -0600, Kyrill Tkachov wrote:
Hi all,
Our movmem expansion currently emits TImode loads and stores when copying
128-bit chunks.
This generates X-register LDP/STP sequences as these are the most preferred
r
Hi James,
TImode is an integer mode so we strongly prefer using integer registers
to avoid inefficient allocations using SIMD registers. We might be able to
use TFmode since that prefers Q registers. However we don't support
TFmode LDP/STP unless emitted explicitly like in prolog/epilog. LDP of
TI
On Fri, Dec 21, 2018 at 06:30:49AM -0600, Kyrill Tkachov wrote:
> Hi all,
>
> Our movmem expansion currently emits TImode loads and stores when copying
> 128-bit chunks.
> This generates X-register LDP/STP sequences as these are the most preferred
> registers for that mode.
>
> For the purpose
Ping.
https://gcc.gnu.org/ml/gcc-patches/2018-12/msg01560.html
Thanks,
Kyrill
On 21/12/18 12:30, Kyrill Tkachov wrote:
Hi all,
Our movmem expansion currently emits TImode loads and stores when copying
128-bit chunks.
This generates X-register LDP/STP sequences as these are the most preferred
Hi all,
Our movmem expansion currently emits TImode loads and stores when copying
128-bit chunks.
This generates X-register LDP/STP sequences as these are the most preferred
registers for that mode.
For the purpose of copying memory, however, we want to prefer Q-registers.
This uses one fewer
