[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  <rguent...@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