[Bug tree-optimization/86544] Popcount detection generates different code on C and C++

[kugan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86544

--- Comment #4 from kugan at gcc dot gnu.org ---
Author: kugan
Date: Wed Jul 18 22:11:24 2018
New Revision: 262864

URL: https://gcc.gnu.org/viewcvs?rev=262864&root=gcc&view=rev
Log:
gcc/ChangeLog:

2018-07-18  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/86544
        * tree-ssa-phiopt.c (cond_removal_in_popcount_pattern): Handle
comparision with EQ_EXPR
        in last stmt.

gcc/testsuite/ChangeLog:

2018-07-18  Kugan Vivekanandarajah  <kuganv@linaro.org>

        PR middle-end/86544
        * g++.dg/tree-ssa/pr86544.C: New test.


Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/pr86544.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-phiopt.c