[Bug tree-optimization/47621] [4.6 Regression] Missed dependencies in address-taken optimization

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47621

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-07 
12:09:36 UTC ---
Author: rguenth
Date: Mon Feb  7 12:09:31 2011
New Revision: 169881

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169881
Log:
2011-02-07  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/47621
    * tree-ssa.c (non_rewritable_lvalue_p): New function, split out from
    two duplicates ...
    (execute_update_addresses_taken): ... here.  Make it more
    conservative in what we accept.

    * gcc.dg/torture/pr47621.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr47621.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa.c