[Bug target/69648] [5/6 Regression] wrong code with -O -mtune=winchip-c6 -fPIC -fexpensive-optimizations -msse4 @ i686

[bernds at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69648

--- Comment #14 from Bernd Schmidt <bernds at gcc dot gnu.org> ---
Author: bernds
Date: Thu Feb 18 15:23:11 2016
New Revision: 233523

URL: https://gcc.gnu.org/viewcvs?rev=233523&root=gcc&view=rev
Log:
Backport PR69648 fix from mainline (set of picreg removed during lra).

        PR rtl-optimization/69648
        * lra-constraints.c (update_ebb_live_info): Don't remove sets of
        pic_offset_table_rtx.


Modified:
    branches/gcc-5-branch/gcc/ChangeLog
    branches/gcc-5-branch/gcc/lra-constraints.c