[Bug middle-end/39326] Segmentation fault with -O1, out of memory with -O2

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39326

--- Comment #49 from Richard Biener <rguenth at gcc dot gnu.org> 2013-03-18 08:43:08 UTC ---
Author: rguenth
Date: Mon Mar 18 08:42:57 2013
New Revision: 196768

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196768
Log:
2013-03-18  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/39326
    * tree-ssa-loop-im.c (refs_independent_p): Exploit symmetry.
    (struct mem_ref): Replace mem member with ao_ref typed member.
    (MEM_ANALYZABLE): Adjust.
    (memref_eq): Likewise.
    (mem_ref_alloc): Likewise.
    (gather_mem_refs_stmt): Likewise.
    (mem_refs_may_alias_p): Use the ao_ref to query the alias oracle.
    (execute_sm_if_changed_flag_set): Adjust.
    (execute_sm): Likewise.
    (ref_always_accessed_p): Likewise.
    (refs_independent_p): Likewise.
    (can_sm_ref_p): Likewise.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-loop-im.c