[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818

--- Comment #12 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Thu Dec  7 17:50:54 2017
New Revision: 255471

URL: https://gcc.gnu.org/viewcvs?rev=255471&root=gcc&view=rev
Log:
2017-12-07  Vladimir Makarov  <vmaka...@redhat.com>

        PR target/83252
        PR rtl-optimization/80818
        * lra.c (add_regs_to_insn_regno_info): Make a hard reg in CLOBBER
        always early clobbered.
        * lra-lives.c (process_bb_lives): Check input hard regs for early
        clobbered non-operand hard reg.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-lives.c
    trunk/gcc/lra.c