http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57361
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> ---
I'll let Richard decide if this should stay open for the more aggressive
optimization or not.
r200034 | glisse | 2013-06-12 19:56:30 +0200 (Wed, 12 Jun 2013) | 10 lines
2013-06-12 Marc Glisse <marc.gli...@inria.fr>
PR tree-optimization/57361
gcc/
* tree-ssa-dse.c (dse_possible_dead_store_p): Handle self-assignment.
gcc/testsuite/
* gcc.dg/tree-ssa/pr57361.c: New file.
