re PR debug/44971 (-fcompare-debug failure with uninitialized read in walk_gimple_stmt)
2010-07-20 Richard Guenther <rguenther@suse.de>
PR middle-end/44971
PR middle-end/44988
* tree-ssa.c (maybe_optimize_var): New function split out from ...
(execute_update_addresses_taken): ... here.
(non_rewritable_mem_ref_base): Likewise.
(execute_update_addresses_taken): Do not iterate over all referenced
vars but just all local decls and parms.
Properly check call and asm arguments and rewrite call arguments.
* gcc.dg/pr44971.c: New testcase.
* gcc.c-torture/compile/pr44988.c: Likewise.