[Bug rtl-optimization/70703] [6/7 regression] Regression in register usage on x86

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70703

--- Comment #12 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Wed Apr  5 15:07:51 2017
New Revision: 246707

URL: https://gcc.gnu.org/viewcvs?rev=246707&root=gcc&view=rev
Log:
2017-04-05  Vladimir Makarov  <vmaka...@redhat.com>

        PR rtl-optimization/70703
        * ira-color.c (update_costs_from_allocno): Use the smallest mode.
        (update_conflict_hard_regno_costs): Use long instead of unsigned
        arithmetic for cost calculation.

2017-04-05  Vladimir Makarov  <vmaka...@redhat.com>

        PR rtl-optimization/70703
        * gcc.target/i386/pr70703.c: New.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr70703.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira-color.c
    trunk/gcc/testsuite/ChangeLog