[Bug rtl-optimization/108805] [13 Regression] ICE: in simplify_subreg, at simplify-rtx.cc:7400 at -O and above

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108805

--- 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:6ac3ebed5ffbac0d81c5a1d0cb1e345cfad202a8

commit r13-6117-g6ac3ebed5ffbac0d81c5a1d0cb1e345cfad202a8
Author: Uros Bizjak <ubiz...@gmail.com>
Date:   Fri Feb 17 15:58:12 2023 +0100

    simplify-rtx: Fix VOIDmode operand handling in simplify_subreg [PR108805]

    simplify_subreg can return VOIDmode const_int operand and will
    cause ICE in simplify_gen_subreg when this operand is passed to it.

    The patch uses int_outermode instead of GET_MODE of temporary as the
    innermode argument of simplify_gen_subreg.

    2023-02-17  Uroš Bizjak  <ubiz...@gmail.com>

    gcc/ChangeLog:

            PR target/108805
            * simplify-rtx.cc (simplify_context::simplify_subreg): Use
            int_outermode instead of GET_MODE (tem) to prevent
            VOIDmode from entering simplify_gen_subreg.

    gcc/testsuite/ChangeLog:

            PR target/108805
            * gcc.dg/pr108805.c: New test.