[Bug rtl-optimization/55193] [4.8 Regression] ICE in in simplify_const_unary_operation, at simplify-rtx.c:1659

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55193

--- Comment #6 from Steven Bosscher <steven at gcc dot gnu.org> 2013-01-14 19:35:10 UTC ---
Author: steven
Date: Mon Jan 14 19:35:03 2013
New Revision: 195173

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195173
Log:

    * ira-build.c (ira_flattening): Comment fix.

    Port the following LRA changes on trunk back to the LRA branch:

    2013-01-10  Vladimir Makarov  <vmakarov at redhat dot com>

    PR rtl-optimization/pr55672
    * lra-eliminations.c (mark_not_elimnable): Permit addition with
    const to be elimnable.

    2012-12-21  Vladimir Makarov  <vmakarov at redhat dot com>

    PR middle-end/55775
    * lra-assigns.c (improve_inheritance): Do nothing after
    LRA_MAX_INHERITANCE_PASSES pass.
    * lra-constraints.c (MAX_CONSTRAINT_ITERATION_NUMBER): Rename to
    LRA_MAX_CONSTRAINT_ITERATION_NUMBER.  Move to lra-int.h.
    (MAX_INHERITANCE_PASSES): Rename to LRA_MAX_INHERITANCE_PASSES.
    Move to lra-int.h.
    * lra-int.h (LRA_MAX_CONSTRAINT_ITERATION_NUMBER): Move from
    lra-constraints.c.
    (LRA_MAX_INHERITANCE_PASSES): Ditto.

    2012-12-21  Steve Ellcey  <sellcey at mips dot com>

    PR bootstrap/54128
    * ira.c (build_insn_chain): Check only NONDEBUG instructions for
    register usage.

    2012-12-11  Jakub Jelinek  <jakub at redhat dot com>

    PR rtl-optimization/55193
    * lra-constraints.c (loc_equivalence_callback): New function.
    (lra_constraints): Call simplify_replace_fn_rtx instead of
    loc_equivalence_change_p on DEBUG_INSNs.


Modified:
    branches/lra/gcc/ChangeLog
    branches/lra/gcc/ira-build.c
    branches/lra/gcc/ira.c
    branches/lra/gcc/lra-assigns.c
    branches/lra/gcc/lra-constraints.c
    branches/lra/gcc/lra-eliminations.c
    branches/lra/gcc/lra-int.h