name the option 'verify' because I can never remember 'vrfy'
[libfirm] / ir / be / bemain.c
index 2e0d96c..b87ed06 100644 (file)
@@ -24,9 +24,7 @@
  * @date        25.11.2004
  * @version     $Id$
  */
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif
 
 #include <stdarg.h>
 #include <stdio.h>
@@ -157,7 +155,7 @@ static const lc_opt_table_entry_t be_main_options[] = {
        LC_OPT_ENT_BOOL     ("omitleaffp", "omit frame pointer in leaf routines",                 &be_options.omit_leaf_fp),
        LC_OPT_ENT_BOOL     ("pic",        "create PIC code",                                     &be_options.pic),
        LC_OPT_ENT_BOOL     ("gprof",      "create gprof profiling code",                         &be_options.gprof),
-       LC_OPT_ENT_ENUM_PTR ("vrfy",       "verify the backend irg",                              &vrfy_var),
+       LC_OPT_ENT_ENUM_PTR ("verify",       "verify the backend irg",                              &vrfy_var),
        LC_OPT_ENT_BOOL     ("time",       "get backend timing statistics",                       &be_options.timing),
        LC_OPT_ENT_BOOL     ("profile",    "instrument the code for execution count profiling",   &be_options.opt_profile),
        LC_OPT_ENT_ENUM_PTR ("sched",      "select a scheduler",                                  &sched_var),
@@ -273,31 +271,35 @@ asm_constraint_flags_t be_parse_asm_constraints(const char *constraint)
                }
        }
 
-       if ( ((flags & ASM_CONSTRAINT_FLAG_MODIFIER_WRITE)
-                       && (flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE))
-               || ((flags & ASM_CONSTRAINT_FLAG_MODIFIER_READ
-                       && (flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ)))) {
+       if ((
+               flags & ASM_CONSTRAINT_FLAG_MODIFIER_WRITE &&
+               flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE
+           ) || (
+               flags & ASM_CONSTRAINT_FLAG_MODIFIER_READ &&
+               flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ
+           )) {
                flags |= ASM_CONSTRAINT_FLAG_INVALID;
        }
-       if (! (flags & (ASM_CONSTRAINT_FLAG_MODIFIER_READ
-                                       | ASM_CONSTRAINT_FLAG_MODIFIER_WRITE
-                                       | ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE
-                                       | ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ))) {
+       if (!(flags & (ASM_CONSTRAINT_FLAG_MODIFIER_READ     |
+                      ASM_CONSTRAINT_FLAG_MODIFIER_WRITE    |
+                      ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE |
+                      ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ)
+           )) {
                flags |= ASM_CONSTRAINT_FLAG_MODIFIER_READ;
        }
 
        return flags;
 }
 
-bool be_is_valid_clobber(const char *clobber)
+int be_is_valid_clobber(const char *clobber)
 {
        /* memory is a valid clobber. (the frontend has to detect this case too,
         * because it has to add memory edges to the asm) */
        if (strcmp(clobber, "memory") == 0)
-               return true;
+               return 1;
        /* cc (condition code) is always valid */
        if (strcmp(clobber, "cc") == 0)
-               return true;
+               return 1;
 
        return isa_if->is_valid_clobber(isa_if, clobber);
 }
@@ -315,25 +317,24 @@ void be_opt_register(void)
        lc_opt_entry_t *be_grp;
        static int run_once = 0;
 
-       if (run_once) {
+       if (run_once)
                return;
-       }
-       run_once     = 1;
-
-       be_init_modules();
+       run_once = 1;
 
        be_grp = lc_opt_get_grp(firm_opt_get_root(), "be");
        lc_opt_add_table(be_grp, be_main_options);
 
        be_add_module_list_opt(be_grp, "isa", "the instruction set architecture",
                               &isa_ifs, (void**) &isa_if);
+
+       be_init_modules();
 }
 
 /* Parse one argument. */
 int be_parse_arg(const char *arg) {
        lc_opt_entry_t *be_grp = lc_opt_get_grp(firm_opt_get_root(), "be");
        if (strcmp(arg, "help") == 0 || (arg[0] == '?' && arg[1] == '\0')) {
-               lc_opt_print_help(be_grp, stdout);
+               lc_opt_print_help_for_entry(be_grp, '-', stdout);
                return -1;
        }
        return lc_opt_from_single_arg(be_grp, NULL, arg, NULL);
@@ -404,7 +405,7 @@ static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle)
        memset(asm_constraint_flags, 0, sizeof(asm_constraint_flags));
        env->arch_env = arch_env_init(isa_if, file_handle, env);
 
-       be_phi_handler_new(env);
+       be_phi_handler_new();
 
        be_dbg_open();
        return env;
@@ -455,9 +456,6 @@ static void initialize_birg(be_irg_t *birg, ir_graph *irg, be_main_env_t *env)
 
        dump(DUMP_INITIAL, irg, "-begin", dump_ir_block_graph);
 
-       be_stat_init_irg(env->arch_env, irg);
-       be_do_stat_nodes(irg, "01 Begin");
-
        /* set the current graph (this is important for several firm functions) */
        current_ir_graph = irg;
 
@@ -527,29 +525,29 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
        be_timing = (be_options.timing == BE_TIME_ON);
 
        if (be_timing) {
-               t_abi        = ir_timer_register("time_beabi",       "be abi introduction");
-               t_codegen    = ir_timer_register("time_codegen",     "codegeneration");
-               t_sched      = ir_timer_register("time_sched",       "scheduling");
-               t_constr     = ir_timer_register("time_constr",      "assure constraints");
-               t_finish     = ir_timer_register("time_finish",      "graph finish");
-               t_emit       = ir_timer_register("time_emiter",      "code emiter");
-               t_verify     = ir_timer_register("time_verify",      "graph verification");
-               t_other      = ir_timer_register("time_other",       "other");
-               t_heights    = ir_timer_register("time_heights",     "heights");
-               t_live       = ir_timer_register("time_liveness",    "be liveness");
-               t_execfreq   = ir_timer_register("time_execfreq",    "execfreq");
-               t_ssa_constr = ir_timer_register("time_ssa_constr",  "ssa reconstruction");
-               t_ra_prolog  = ir_timer_register("time_ra_prolog",   "regalloc prolog");
-               t_ra_epilog  = ir_timer_register("time_ra_epilog",   "regalloc epilog");
-               t_ra_constr  = ir_timer_register("time_ra_constr",   "regalloc constraints");
-               t_ra_spill   = ir_timer_register("time_ra_spill",    "spiller");
+               t_abi        = ir_timer_register("bemain_time_beabi",       "be abi introduction");
+               t_codegen    = ir_timer_register("bemain_time_codegen",     "codegeneration");
+               t_sched      = ir_timer_register("bemain_time_sched",       "scheduling");
+               t_constr     = ir_timer_register("bemain_time_constr",      "assure constraints");
+               t_finish     = ir_timer_register("bemain_time_finish",      "graph finish");
+               t_emit       = ir_timer_register("bemain_time_emiter",      "code emiter");
+               t_verify     = ir_timer_register("bemain_time_verify",      "graph verification");
+               t_other      = ir_timer_register("bemain_time_other",       "other");
+               t_heights    = ir_timer_register("bemain_time_heights",     "heights");
+               t_live       = ir_timer_register("bemain_time_liveness",    "be liveness");
+               t_execfreq   = ir_timer_register("bemain_time_execfreq",    "execfreq");
+               t_ssa_constr = ir_timer_register("bemain_time_ssa_constr",  "ssa reconstruction");
+               t_ra_prolog  = ir_timer_register("bemain_time_ra_prolog",   "regalloc prolog");
+               t_ra_epilog  = ir_timer_register("bemain_time_ra_epilog",   "regalloc epilog");
+               t_ra_constr  = ir_timer_register("bemain_time_ra_constr",   "regalloc constraints");
+               t_ra_spill   = ir_timer_register("bemain_time_ra_spill",    "spiller");
                t_ra_spill_apply
-                       = ir_timer_register("time_ra_spill_apply", "apply spills");
-               t_ra_color   = ir_timer_register("time_ra_color",    "graph coloring");
-               t_ra_ifg     = ir_timer_register("time_ra_ifg",      "interference graph");
-               t_ra_copymin = ir_timer_register("time_ra_copymin",  "copy minimization");
-               t_ra_ssa     = ir_timer_register("time_ra_ssadestr", "ssa destruction");
-               t_ra_other   = ir_timer_register("time_ra_other",    "regalloc other");
+                       = ir_timer_register("bemain_time_ra_spill_apply", "apply spills");
+               t_ra_color   = ir_timer_register("bemain_time_ra_color",    "graph coloring");
+               t_ra_ifg     = ir_timer_register("bemain_time_ra_ifg",      "interference graph");
+               t_ra_copymin = ir_timer_register("bemain_time_ra_copymin",  "copy minimization");
+               t_ra_ssa     = ir_timer_register("bemain_time_ra_ssadestr", "ssa destruction");
+               t_ra_other   = ir_timer_register("bemain_time_ra_other",    "regalloc other");
        }
 
        be_init_env(&env, file_handle);
@@ -560,7 +558,8 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
 
        arch_env = env.arch_env;
 
-       /* backend may provide an ordered list of irgs where code should be generated for */
+       /* backend may provide an ordered list of irgs where code should be
+        * generated for */
        irg_list         = NEW_ARR_F(ir_graph *, 0);
        backend_irg_list = arch_env_get_backend_irg_list(arch_env, &irg_list);
 
@@ -605,18 +604,16 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                /* set the current graph (this is important for several firm functions) */
                current_ir_graph = irg;
 
-#if 0
-               {
-                       unsigned percent = 100*i/num_birgs;
-                       ir_printf("%u.%02u %+F\n", percent/100, percent%100, irg);
-               }
-#endif
                be_sched_init_phase(irg);
 
                /* reset the phi handler. */
                be_phi_handler_reset();
 
-               stat_ev_ctx_push_fobj("bemain_irg", irg);
+               stat_ev_if {
+                       stat_ev_ctx_push_fobj("bemain_irg", irg);
+                       be_stat_ev("bemain_insns_start", be_count_insns(irg));
+                       be_stat_ev("bemain_blocks_start", be_count_blocks(irg));
+               }
 
                /* stop and reset timers */
                BE_TIMER_PUSH(t_other);   /* t_other */
@@ -647,7 +644,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                BE_TIMER_POP(t_abi);
 
                dump(DUMP_ABI, irg, "-abi", dump_ir_block_graph);
-               be_do_stat_nodes(irg, "02 Abi");
 
                if (be_options.vrfy_option == BE_VRFY_WARN) {
                        be_check_dominance(irg);
@@ -658,17 +654,13 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                }
 
                /* generate code */
-               stat_ev_ctx_push_str("bemain_phase", "prepare");
                BE_TIMER_PUSH(t_codegen);
                arch_code_generator_prepare_graph(birg->cg);
                BE_TIMER_POP(t_codegen);
-               stat_ev_ctx_pop("bemain_phase");
 
                /* reset the phi handler. */
                be_phi_handler_reset();
 
-               be_do_stat_nodes(irg, "03 Prepare");
-
                dump(DUMP_PREPARED, irg, "-prepared", dump_ir_block_graph);
 
                if (be_options.vrfy_option == BE_VRFY_WARN) {
@@ -685,8 +677,12 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                 */
                if (ir_profile_has_data())
                        birg->exec_freq = ir_create_execfreqs_from_profile(irg);
-               else
+               else {
+                       /* TODO: edges are corrupt for EDGE_KIND_BLOCK after the local
+                        * optimize graph phase merges blocks in the x86 backend */
+                       edges_deactivate(irg);
                        birg->exec_freq = compute_execfreq(irg, 10);
+               }
                BE_TIMER_POP(t_execfreq);
 
 
@@ -694,11 +690,9 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                /* be_live_chk_compare(birg); */
 
                /* let backend prepare scheduling */
-               stat_ev_ctx_push_str("bemain_phase", "before_sched");
                BE_TIMER_PUSH(t_codegen);
                arch_code_generator_before_sched(birg->cg);
                BE_TIMER_POP(t_codegen);
-               stat_ev_ctx_pop("bemain_phase");
 
                /* schedule the irg */
                BE_TIMER_PUSH(t_sched);
@@ -723,8 +717,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                be_sched_vrfy(birg, be_options.vrfy_option);
                BE_TIMER_POP(t_verify);
 
-               be_do_stat_nodes(irg, "04 Schedule");
-
                /* introduce patterns to assure constraints */
                BE_TIMER_PUSH(t_constr);
                /* we switch off optimizations here, because they might cause trouble */
@@ -733,15 +725,12 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                set_opt_normalize(0);
                set_opt_cse(0);
 
-               assert(!get_opt_cse());
-
                /* add Keeps for should_be_different constrained nodes  */
                /* beware: needs schedule due to usage of be_ssa_constr */
                assure_constraints(birg);
                BE_TIMER_POP(t_constr);
 
                dump(DUMP_SCHED, irg, "-assured", dump_ir_block_graph_sched);
-               be_do_stat_nodes(irg, "05 Constraints");
 
                /* stuff needs to be done after scheduling but before register allocation */
                BE_TIMER_PUSH(t_codegen);
@@ -760,22 +749,21 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                be_sched_vrfy(birg, be_options.vrfy_option);
                BE_TIMER_POP(t_verify);
 
-               /* do some statistics */
-               //be_do_stat_reg_pressure(birg);
-
-#ifdef FIRM_STATISTICS
-               stat_ev_dbl("costs_before_ra", be_estimate_irg_costs(irg, arch_env, birg->exec_freq));
-#endif
+               stat_ev_if {
+                       stat_ev_dbl("bemain_costs_before_ra",
+                                       be_estimate_irg_costs(irg, birg->exec_freq));
+                       be_stat_ev("bemain_insns_before_ra", be_count_insns(irg));
+                       be_stat_ev("bemain_blocks_before_ra", be_count_blocks(irg));
+               }
 
                /* Do register allocation */
                be_allocate_registers(birg);
 
 #ifdef FIRM_STATISTICS
-               stat_ev_dbl("costs_before_ra", be_estimate_irg_costs(irg, arch_env, birg->exec_freq));
+               stat_ev_dbl("bemain_costs_before_ra", be_estimate_irg_costs(irg, birg->exec_freq));
 #endif
 
                dump(DUMP_RA, irg, "-ra", dump_ir_block_graph_sched);
-               be_do_stat_nodes(irg, "06 Register Allocation");
 
                /* let the code generator prepare the graph for emitter */
                BE_TIMER_PUSH(t_finish);
@@ -797,6 +785,11 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
 
                dump(DUMP_FINAL, irg, "-finish", dump_ir_block_graph_sched);
 
+               stat_ev_if {
+                       be_stat_ev("bemain_insns_finish", be_count_insns(irg));
+                       be_stat_ev("bemain_blocks_finish", be_count_blocks(irg));
+               }
+
                /* check schedule and register allocation */
                BE_TIMER_PUSH(t_verify);
                if (be_options.vrfy_option == BE_VRFY_WARN) {
@@ -827,7 +820,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                be_abi_free(birg->abi);
                BE_TIMER_POP(t_abi);
 
-               be_do_stat_nodes(irg, "07 Final");
                restore_optimization_state(&state);
 
                BE_TIMER_POP(t_other);
@@ -875,14 +867,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                be_sched_free_phase(irg);
 
                be_free_birg(birg);
-
-        /* switched off due to statistics (statistic module needs all irgs) */
-#if 0   /* STA needs irgs */
-#ifdef FIRM_STATISTICS
-               if (! stat_is_active())
-#endif /* FIRM_STATISTICS */
-                       free_ir_graph(irg);
-#endif /* if 0 */
                stat_ev_ctx_pop("bemain_irg");
        }
        ir_profile_free();
@@ -896,11 +880,13 @@ void be_main(FILE *file_handle, const char *cup_name)
 
        /* The user specified another config file to read. do that now. */
        if (config_file[0] != '\0') {
-               FILE *f;
+               FILE *f = fopen(config_file, "rt");
 
-               if ((f = fopen(config_file, "rt")) != NULL) {
+               if (f != NULL) {
                        lc_opt_from_file(config_file, f, NULL);
                        fclose(f);
+               } else {
+                       fprintf(stderr, "Warning: Cannot open config file '%s'\n", config_file);
                }
        }
 
@@ -924,6 +910,7 @@ void be_main(FILE *file_handle, const char *cup_name)
 
                be_options.statev = 1;
                stat_ev_begin(buf, be_options.filtev);
+               stat_ev_ctx_push_str("bemain_compilation_unit", cup_name);
        }
 #endif
 
@@ -938,15 +925,17 @@ void be_main(FILE *file_handle, const char *cup_name)
                ir_timer_stop(t);
                ir_timer_leave_high_priority();
                stat_ev_if {
-                       stat_ev_dbl("backend_time", ir_timer_elapsed_msec(t));
+                       stat_ev_dbl("bemain_backend_time", ir_timer_elapsed_msec(t));
                } else {
                        printf("%-20s: %lu msec\n", "BEMAINLOOP", ir_timer_elapsed_msec(t));
                }
        }
 
 #ifdef FIRM_STATISTICS
-       if (be_options.statev)
+       if (be_options.statev) {
+               stat_ev_ctx_pop("bemain_compilation_unit");
                stat_ev_end();
+       }
 #endif
 }
 
@@ -957,8 +946,8 @@ unsigned be_put_ignore_regs(const be_irg_t *birg, const arch_register_class_t *c
        else
                bitset_clear_all(bs);
 
-       assert(bitset_size(bs) == (unsigned)cls->n_regs);
-       arch_put_non_ignore_regs(birg->main_env->arch_env, cls, bs);
+       assert(bitset_size(bs) == cls->n_regs);
+       arch_put_non_ignore_regs(cls, bs);
        bitset_flip_all(bs);
        be_abi_put_ignore_regs(birg->abi, cls, bs);