On Tue, Feb 22, 2022 at 12:46 AM Jakub Jelinek wrote:
>
> Hi!
>
> We ICE on the following testcase for -m32 since r12-3435. because
> operands[2] is (subreg:SF (reg:DI ...) 0) and
According to validate_subreg, (subreg:V4SF (reg:DI ...) 0) should be
valid(but not sure if it really works )
For -m64
On Mon, Feb 21, 2022 at 6:33 PM Jakub Jelinek wrote:
>
> On Mon, Feb 21, 2022 at 06:01:00PM +0100, Uros Bizjak wrote:
> > I remember the same issue in the past, so it looks like the fresh
> > pseudo as destination gives RA some more freedom to do its magic. So,
> > it is better to do:
> >
> >
On Mon, Feb 21, 2022 at 06:01:00PM +0100, Uros Bizjak wrote:
> I remember the same issue in the past, so it looks like the fresh
> pseudo as destination gives RA some more freedom to do its magic. So,
> it is better to do:
>
> emit_move_insn (dest, gen_lowpart (wmode, t3));
>
> then play wi
On Mon, Feb 21, 2022 at 5:46 PM Jakub Jelinek wrote:
>
> Hi!
>
> We ICE on the following testcase for -m32 since r12-3435. because
> operands[2] is (subreg:SF (reg:DI ...) 0) and
> lowpart_subreg (V4SFmode, operands[2], SFmode)
> returns NULL, and that is what we use in AND etc. insns we emit.
>
>
