[Bug rtl-optimization/49114] Reload failed to handle (set reg:X (plus:X (subreg:X (reg:Y) 0) (const_int)))

[uweigand at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49114

--- Comment #6 from Ulrich Weigand <uweigand at gcc dot gnu.org> 2011-06-29 
12:15:20 UTC ---
Author: uweigand
Date: Wed Jun 29 12:15:08 2011
New Revision: 175631

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175631
Log:
    PR rtl-optimization/49114
    * reload.c (struct replacement): Remove SUBREG_LOC member.
    (push_reload): Do not set it.
    (push_replacement): Likewise.
    (subst_reload): Remove dead code.
    (copy_replacements): Remove assertion.
    (copy_replacements_1): Do not handle SUBREG_LOC.
    (move_replacements): Likewise.
    (find_replacement): Remove dead code.  Use reload_adjust_reg_for_mode.
    Detect subregs via recursive descent instead of via SUBREG_LOC.

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