[Bug tree-optimization/106126] [12 Regression] tree check fail in useless_type_conversion_p, at gimple-expr.cc:87 since r13-1184-g57424087e82db140

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106126

--- Comment #16 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Liska <mar...@gcc.gnu.org>:

https://gcc.gnu.org/g:618bac5b486832edd3f8eb3ada74740e389dfcb8

commit r13-1375-g618bac5b486832edd3f8eb3ada74740e389dfcb8
Author: Martin Liska <mli...@suse.cz>
Date:   Thu Jun 30 15:00:17 2022 +0200

    if-to-switch: properly allow side effects only for first condition

    Properly allow side effects only for a first BB in a condition chain.

            PR tree-optimization/106126

    gcc/ChangeLog:

            * gimple-if-to-switch.cc (struct condition_info): Save
            has_side_effect.
            (find_conditions): Parse all BBs.
            (pass_if_to_switch::execute): Allow only side effects for first
            BB.

    gcc/testsuite/ChangeLog:

            * gcc.dg/tree-ssa/pr106126.c: New test.