https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108177
--- Comment #5 from Stam Markianos-Wright <stammark at gcc dot gnu.org> ---
With the fix to MVE auto_inc having gone in as
ddc9b5ee13cd686c8674f92d46045563c06a23ea I have found that this fix keeps the
auto-inc on these predicated stores broken.
It seems to fail in auto_inc_dec at this condition:
```
/* Make sure this reg appears only once in this insn. */
if (count_occurrences (PATTERN (mem_insn.insn), mem_insn.reg0, 1) != 1)
{
if (dump_file)
fprintf (dump_file, "mem count failure\n");
return false;
}
```
(which makes sense with the pattern now having the MEM appear twice)
I guess this is not urgent since this is only a performance impact on one
instruction. Also if the change needs to be in the auto-inc pass instead of the
backend, then likely something for GCC14, but I thought this would be a good
place to record this ;)
Does anyone have any ideas on this? Or I wonder what the AVX case does for this
