On 09/09/2021 13:23, Richard Biener via Gcc-patches wrote:
On Thu, Sep 9, 2021 at 1:09 PM Richard Earnshaw wrote:
gen_lowpart_general handles forming a SUBREG of a MEM by using
adjust_address to rework and validate a new version of the MEM.
However, gen_highpart does not attempt this and s
On Thu, Sep 9, 2021 at 1:09 PM Richard Earnshaw wrote:
>
>
> gen_lowpart_general handles forming a SUBREG of a MEM by using
> adjust_address to rework and validate a new version of the MEM.
> However, gen_highpart does not attempt this and simply returns (SUBREG
> (MEM)) if the change is not 'obvi
gen_lowpart_general handles forming a SUBREG of a MEM by using
adjust_address to rework and validate a new version of the MEM.
However, gen_highpart does not attempt this and simply returns (SUBREG
(MEM)) if the change is not 'obviously' safe. Improve on that by
using a similar approach so that g
