https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47679
--- Comment #29 from Jeffrey A. Law <law at gcc dot gnu.org> --- Author: law Date: Sat Sep 19 02:56:15 2015 New Revision: 227931 URL: https://gcc.gnu.org/viewcvs?rev=227931&root=gcc&view=rev Log: [PATCH] avail_expr_stack is no longer file scoped PR tree-optimization/47679 * tree-ssa-dom.c (avail_exprs_stack): No longer file scoped. Move it here ... (dom_opt_dom_walker): New private member holding the avail_exprs_stack object. Update constructor. (pass_dominator::execute): Corresponding chagnes to declaration and initialization of avail_exprs_stack. Update constructor call for dom_opt_dom_walker object. (lookup_avail_expr, record_cond): Accept additional argument. Pass it down to children as needed. (record_equivalences_from_incoming_edge): Likewise. (eliminate_redundant_computations): Likewise. (record_equivalences_from_stmt): Likewise. (simplify_stmt_for_jump_threading): Likewise. (record_temporary_equivalences): Likewise. (optimize_stmt): Likewise. (dom_opt_dom_walker::thread_across_edge): Update access to avail_exprs_stack object and pass it to children as needed. (dom_opt_dom_walker::before_dom_children): Similarly. (dom_opt_dom_walker::after_dom_children): Similarly. * tree-ssa-threadedge.c (pfn_simplify): New typedef. (record_temporary_equivalences_from_stmts_at_dest): Use new typedef. Add avail_expr_stack argument. Pass it to children as needed. (dummy_simplify): Likewise. (simplify_control_stmt_condition): Likewise. (thread_around_empty_blocks): Likewise. (thread_through_normal_block): Likewise. (thread_across_edge): Likewise. * tree-ssa-threadedge.h (thread_across_edge): Update prototype. * tree-vrp.c (simplify_stmt_for_jump_threading): Update. Modified: trunk/gcc/ChangeLog trunk/gcc/tree-ssa-dom.c trunk/gcc/tree-ssa-threadedge.c trunk/gcc/tree-ssa-threadedge.h trunk/gcc/tree-vrp.c
