https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94488
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Status|NEW |ASSIGNED
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 48207
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48207&action=edit
gcc10-pr94488.patch
Seems this bug goes all the way to the introduction of aarch64 port.
The patterns have general_operand predicate on the shift amount, but actually
only grok if the amount is a CONST_INT, or REG or MEM and nothing else, while
in this case it is a SUBREG of REG. There is no reason why it can't handle any
general_operand.
