[Bug middle-end/87899] [9 regression]r264897 cause mis-compiled native arm-linux-gnueabihf toolchain

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87899

--- Comment #8 from Peter Bergner <bergner at gcc dot gnu.org> ---
Author: bergner
Date: Tue Nov 13 22:14:11 2018
New Revision: 266086

URL: https://gcc.gnu.org/viewcvs?rev=266086&root=gcc&view=rev
Log:
gcc/
        PR rtl-optimization/87899
        * lra-lives.c (start_living): Update white space in comment.
        (enum point_type): New.
        (sparseset_contains_pseudos_p): New function.
        (update_pseudo_point): Likewise.
        (make_hard_regno_live): Use HARD_REGISTER_NUM_P macro.
        (make_hard_regno_dead): Likewise.  Remove ignore_reg_for_conflicts
        handling.  Move early exit after adding conflicts.
        (mark_pseudo_live): Use HARD_REGISTER_NUM_P macro.  Add early exit
        if regno is already live.  Remove all handling of program points.
        (mark_pseudo_dead): Use HARD_REGISTER_NUM_P macro.  Add early exit
        after adding conflicts.  Remove all handling of program points and
        ignore_reg_for_conflicts.
        (mark_regno_live): Use HARD_REGISTER_NUM_P macro.  Remove return value
        and do not guard call to mark_pseudo_live.
        (mark_regno_dead): Use HARD_REGISTER_NUM_P macro.  Remove return value
        and do not guard call to mark_pseudo_dead.
        (check_pseudos_live_through_calls): Use HARD_REGISTER_NUM_P macro.
        (process_bb_lives): Use HARD_REGISTER_NUM_P and HARD_REGISTER_P macros.
        Use new function update_pseudo_point.  Handle register copies by
        removing the source register from the live set.  Handle INOUT operands.
        Update to the next program point using the unused_set, dead_set and
        start_dying sets.
        (lra_create_live_ranges_1): Use HARD_REGISTER_NUM_P macro.

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