9 #include "iroptimize.h"
16 #include "opt_manage.h"
18 static void nop(ir_graph *irg) {
22 void perform_irg_optimization(ir_graph *irg, optdesc_t *opt)
24 ir_graph_state_t new_irg_state;
25 ir_graph_state_t required = opt->requirements;
26 const bool dump = get_irp_optimization_dumps();
28 /* assure that all requirements for the optimization are fulfilled */
29 #define PREPARE(st,func) if (st & (required ^ irg->state)) {func(irg); set_irg_state(irg,st);}
30 PREPARE(IR_GRAPH_STATE_ONE_RETURN, normalize_one_return)
31 PREPARE(IR_GRAPH_STATE_NO_CRITICAL_EDGES, remove_critical_cf_edges)
32 PREPARE(IR_GRAPH_STATE_NO_UNREACHABLE_CODE, remove_unreachable_code)
33 PREPARE(IR_GRAPH_STATE_NO_BADS, remove_bads)
34 PREPARE(IR_GRAPH_STATE_CONSISTENT_DOMINANCE, assure_doms)
35 PREPARE(IR_GRAPH_STATE_CONSISTENT_POSTDOMINANCE, assure_postdoms)
36 PREPARE(IR_GRAPH_STATE_CONSISTENT_OUT_EDGES, edges_assure)
37 PREPARE(IR_GRAPH_STATE_CONSISTENT_OUTS, assure_irg_outs)
38 PREPARE(IR_GRAPH_STATE_CONSISTENT_LOOPINFO, assure_loopinfo)
39 PREPARE(IR_GRAPH_STATE_CONSISTENT_ENTITY_USAGE, assure_irg_entity_usage_computed)
40 PREPARE(IR_GRAPH_STATE_VALID_EXTENDED_BLOCKS, compute_extbb)
42 /* now all the requirements for the optimization are fulfilled */
44 dump_ir_graph(irg, opt->name);
46 new_irg_state = opt->optimization(irg);
49 dump_ir_graph(irg, opt->name);
51 /* unless the optimization returned that some state is retained,
52 * we disable the corresponding irg state.
53 * Since we currently duplicate information, sometimes another func must be called too.
55 #define INVALIDATE(state,func) if (!(state & new_irg_state)) {clear_irg_state(irg,state); func(irg);}
56 INVALIDATE(IR_GRAPH_STATE_NO_CRITICAL_EDGES, nop)
57 INVALIDATE(IR_GRAPH_STATE_NO_UNREACHABLE_CODE, nop)
58 INVALIDATE(IR_GRAPH_STATE_NO_BADS, nop)
59 INVALIDATE(IR_GRAPH_STATE_ONE_RETURN, nop)
60 INVALIDATE(IR_GRAPH_STATE_CONSISTENT_DOMINANCE, nop)
61 INVALIDATE(IR_GRAPH_STATE_CONSISTENT_POSTDOMINANCE, nop)
62 INVALIDATE(IR_GRAPH_STATE_CONSISTENT_OUTS, nop)
63 INVALIDATE(IR_GRAPH_STATE_CONSISTENT_OUT_EDGES, edges_deactivate)
64 INVALIDATE(IR_GRAPH_STATE_CONSISTENT_LOOPINFO, nop)
65 INVALIDATE(IR_GRAPH_STATE_CONSISTENT_ENTITY_USAGE, nop)
66 INVALIDATE(IR_GRAPH_STATE_VALID_EXTENDED_BLOCKS, set_irg_extblk_inconsistent)
68 remove_End_Bads_and_doublets(get_irg_end(irg));
70 irg_verify(irg, VERIFY_ENFORCE_SSA);