[Bug tree-optimization/102943] [12 Regression] Jump threader compile-time hog with 521.wrf_r

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102943

--- Comment #38 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:ee34ffa429a399f292ad1421333721a92b998772

commit r12-7592-gee34ffa429a399f292ad1421333721a92b998772
Author: Richard Biener <rguent...@suse.de>
Date:   Thu Mar 10 13:43:19 2022 +0100

    tree-optimization/102943 - use tree form for sbr_sparse_bitmap

    The following arranges to remove an indirection do the bitvector
    in sbr_sparse_bitmap by embedding bitmap_head instead of bitmap
    and using the tree form (since we only ever set/query individual
    aligned bit chunks).  That shaves off 6 seconds from 70 seconds
    of the slowest 521.wrf_r LRANS unit build.

    2022-03-10  Richard Biener  <rguent...@suse.de>

            PR tree-optimization/102943
            * gimple-range-cache.cc (sbr_sparse_bitmap::bitvec):
            Make a bitmap_head.
            (sbr_sparse_bitmap::sbr_sparse_bitmap): Adjust and switch
            to tree view.
            (sbr_sparse_bitmap::set_bb_range): Adjust.
            (sbr_sparse_bitmap::get_bb_range): Likewise.