[Bug target/105927] ICE: RTL check: expected code 'reg', have 'mem' in rhs_regno, at rtl.h:1932 with -mtune=k6-3 -msse

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105927

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Uros Bizjak <u...@gcc.gnu.org>:

https://gcc.gnu.org/g:b3dd7d8b48227d3489039ca66b6c0ea2da743255

commit r13-1071-gb3dd7d8b48227d3489039ca66b6c0ea2da743255
Author: Uros Bizjak <ubiz...@gmail.com>
Date:   Mon Jun 13 17:08:18 2022 +0200

    i386: Return true for (SUBREG (MEM....)) in register_no_elim_operand
[PR105927]

    Under certain conditions register_operand predicate also allows
    subregs of memory operands.  When RTL checking is enabled, these
    will fail with REGNO (op).

    Allow subregs of memory operands, these are guaranteed
    to be reloaded to a register.

    2022-06-13  Uroš Bizjak  <ubiz...@gmail.com>

    gcc/ChangeLog:

            PR target/105927
            * config/i386/predicates.md (register_no_elim_operand):
            Return true for subreg of a memory operand.

    gcc/testsuite/ChangeLog:

            PR target/105927
            * gcc.target/i386/pr105927.c: New test.