[Bug debug/66691] [5/6 Regression] ICE on valid code at -O3 with -g enabled in simplify_subreg, at simplify-rtx.c:5744

["vmakarov at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66691

--- Comment #6 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Author: vmakarov
Date: Tue Jun 30 17:40:55 2015
New Revision: 225200

URL: https://gcc.gnu.org/viewcvs?rev=225200&root=gcc&view=rev
Log:
2015-06-30  Vladimir Makarov  <vmakarov@redhat.com>

        PR debug/66691
        * lra-int.h (lra_substitute_pseudo): Add a parameter.
        (lra_substitute_pseudo_within_insn): Ditto.
        * lra.c (lra_substitute_pseudo): Add a parameter.  Simplify subreg
        of constant.
        (lra_substitute_pseudo_within_insn): Add a parameter.  Transfer it
        to lra_substitute_pseudo.
        * lra-lives.c (process_bb_lives): Add an argument to
        lra_substitute_pseudo_within_insn call.
        * lra-constraints.c (inherit_reload_reg, split_reg): Add an
        argument to lra_substitute_pseudo and
        lra_substitute_pseudo_within_insn calls.
        (remove_inheritance_pseudos, undo_optional_reloads): Ditto.

2015-06-30  Vladimir Makarov  <vmakarov@redhat.com>

        PR debug/66691
        * gcc.target/i386/pr66691.c: New.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-constraints.c
    trunk/gcc/lra-int.h
    trunk/gcc/lra-lives.c
    trunk/gcc/lra.c
    trunk/gcc/testsuite/ChangeLog