[Bug tree-optimization/64910] tree reassociation results in poor code

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64910

--- Comment #6 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Wed Sep  6 05:20:25 2017
New Revision: 251751

URL: https://gcc.gnu.org/viewcvs?rev=251751&root=gcc&view=rev
Log:
        PR tree-optimization/64910
        * tree-ssa-reassoc.c (reassociate_bb): Restrict last change to
        cases where we have 3 or more operands.

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