[Bug tree-optimization/93199] [8/9/10 Regression] Compile time hog in sink_clobbers

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93199

--- Comment #16 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Jan 10 10:49:57 2020
New Revision: 280101

URL: https://gcc.gnu.org/viewcvs?rev=280101&root=gcc&view=rev
Log:
2020-01-10  Richard Biener  <rguenther@suse.de>

        PR middle-end/93199
        * tree-eh.c (redirect_eh_edge_1): Avoid some work if possible.
        (cleanup_all_empty_eh): Walk landing pads in reverse order to
        avoid quadraticness.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-eh.c