[Bug tree-optimization/104582] [11/12 Regression] Unoptimal code for __negdi2 (and others) from libgcc2 due to unwanted vectorization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104582

--- Comment #19 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:61fc5e098e76c9809f35f449a70c9c8d74773d9d

commit r12-7317-g61fc5e098e76c9809f35f449a70c9c8d74773d9d
Author: Richard Biener <rguent...@suse.de>
Date:   Fri Feb 18 11:34:52 2022 +0100

    tree-optimization/104582 - Simplify vectorizer cost API and fixes

    This simplifies the vectorizer cost API by providing overloads
    to add_stmt_cost and record_stmt_cost suitable for scalar stmt
    and branch stmt costing which do not need information like
    a vector type or alignment.  It also fixes two mistakes where
    costs for versioning tests were recorded as vector stmt rather
    than scalar stmt.

    This is a first patch to simplify the actual fix for PR104582.

    2022-02-18  Richard Biener  <rguent...@suse.de>

            PR tree-optimization/104582
            * tree-vectorizer.h (add_stmt_cost): New overload.
            (record_stmt_cost): Likewise.
            * tree-vect-loop.cc (vect_compute_single_scalar_iteration_cost):
            Use add_stmt_costs.
            (vect_get_known_peeling_cost): Use new overloads.
            (vect_estimate_min_profitable_iters): Likewise.  Consistently
            use scalar_stmt for costing versioning checks.
            * tree-vect-stmts.cc (record_stmt_cost): New overload.