[Bug middle-end/123069] [16 Regression] ICE: tree check: expected none of vector_type, have vector_type in build_int_cst, at tree.cc:1649 with vector multiply since r16-5095

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123069

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:9029f5436aa4badd17c63a5633346a620d265ef5

commit r16-6017-g9029f5436aa4badd17c63a5633346a620d265ef5
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Wed Dec 10 18:07:02 2025 +0100

    vect-generic: Fix expand_vector_mult [PR123069]

    The r16-5095 PR122065 change added build_int_cst call on vector types.
    That is never correct, it ICEs already on the TYPE_PRECISION used at the
    start of wide_int_to_tree_1.

    Fixed by using build_zero_cst instead.

    2025-12-10  Jakub Jelinek  <jakub@redhat.com>
                Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

            PR middle-end/123069
            * tree-vect-generic.cc (expand_vector_mult): Use
            build_zero_cst (vectype) instead of build_int_cst (vectype, 0).

            * gcc.c-torture/compile/pr123069.c: New test.