[Bug tree-optimization/64058] [5/6 Regression] Performance degradation after r216304

law at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Mar 11 21:08:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64058

--- Comment #19 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Fri Mar 11 21:07:31 2016
New Revision: 234149

URL: https://gcc.gnu.org/viewcvs?rev=234149&root=gcc&view=rev
Log:
        PR tree-optimization/64058
        * tree-ssa-coalesce.c (struct coalesce_pair): Add new field INDEX.
        (num_coalesce_pairs): Move up earlier in file.
        (find_coalesce_pair): Initialize the INDEX field for each pair
        discovered.
        (compare_pairs): No longer sort on the elements in each pair.
        Instead break ties with the index of the coalesce pair.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-coalesce.c


More information about the Gcc-bugs mailing list