[Bug tree-optimization/63586] x+x+x+x -> 4*x in gimple

[kugan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63586

--- Comment #8 from kugan at gcc dot gnu.org ---
Author: kugan
Date: Wed May 18 00:58:45 2016
New Revision: 236356

URL: https://gcc.gnu.org/viewcvs?rev=236356&root=gcc&view=rev
Log:
gcc/testsuite/ChangeLog:

2016-05-17  Kugan Vivekanandarajah  <kug...@linaro.org>

        PR middle-end/63586
        * gcc.dg/tree-ssa/pr63586-2.c: New test.
        * gcc.dg/tree-ssa/pr63586.c: New test.
        * gcc.dg/tree-ssa/reassoc-14.c: Adjust multiplication count.

gcc/ChangeLog:

2016-05-17  Kugan Vivekanandarajah  <kug...@linaro.org>

        PR middle-end/63586
        * tree-ssa-reassoc.c (transform_add_to_multiply): New.
        (reassociate_bb): Call transform_add_to_multiply.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/reassoc-14.c
    trunk/gcc/tree-ssa-reassoc.c