[Bug rtl-optimization/80429] -fcompare-debug failure on ppc64le with LRA

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80429

--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Wed Apr 19 10:03:35 2017
New Revision: 246991

URL: https://gcc.gnu.org/viewcvs?rev=246991&root=gcc&view=rev
Log:
IRA: Don't create new regs for debug insns (PR80429)

In split_live_ranges_for_shrink_wrap IRA also splits regs that are
only used in debug insns, leading to -fcompare-debug failures.


        PR rtl-optimization/80429
        * ira.c (split_live_ranges_for_shrink_wrap): Don't split regs that
        are only used in debug insns.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira.c