[Bug ada/68590] [6 Regression] FAIL: gnat.dg/loop_optimization19.adb scan-tree-dump-not optimized "Index_Check"

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68590

--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Dec  1 14:22:40 2015
New Revision: 231110

URL: https://gcc.gnu.org/viewcvs?rev=231110&root=gcc&view=rev
Log:
2015-12-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/68590
        * genmatch.c (struct capture_info): Add match_use_count.
        (capture_info::walk_match): Increment match_use_count.
        (dt_simplify::gen_1): For GENERIC, only wrap multi-use
        replacements in a save_expr if they occur more often than
        in the original expression.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/genmatch.c