http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54402
--- Comment #27 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2013-01-18 10:58:43 UTC --- Author: aoliva Date: Fri Jan 18 10:58:15 2013 New Revision: 195291 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195291 Log: PR debug/54114 PR debug/54402 PR debug/49888 * var-tracking.c (negative_power_of_two_p): New. (global_get_addr_cache, local_get_addr_cache): New. (get_addr_from_global_cache, get_addr_from_local_cache): New. (vt_canonicalize_addr): Rewrite using the above. Adjust the heading comment. (vt_stack_offset_p): Remove. (vt_canon_true_dep): Always canonicalize loc's address. (clobber_overlapping_mems): Make sure we have a MEM. (local_get_addr_clear_given_value): New. (val_reset): Clear local cached entries. (compute_bb_dataflow): Create and release the local cache. Disable duplicate MEMs clobbering. (emit_notes_in_bb): Clobber MEMs likewise. (vt_emit_notes): Create and release the local cache. (vt_initialize, vt_finalize): Create and release the global cache, respectively. * alias.c (rtx_equal_for_memref_p): Compare operands of ENTRY_VALUEs. Modified: trunk/gcc/ChangeLog trunk/gcc/alias.c trunk/gcc/var-tracking.c
