* @date 25.11.2004
* @version $Id$
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include <stdarg.h>
#include <stdio.h>
#include "irgopt.h"
#include "irgraph.h"
#include "irdump.h"
-#include "phiclass.h"
#include "irdom_t.h"
#include "iredges_t.h"
#include "irloop_t.h"
#include "execfreq.h"
#include "irprofile.h"
-#include "bearch_t.h"
+#include "bearch.h"
#include "be_t.h"
#include "bemodule.h"
#include "beutil.h"
-#include "benode_t.h"
+#include "benode.h"
#include "beirgmod.h"
-#include "besched_t.h"
+#include "besched.h"
#include "belistsched.h"
#include "belive_t.h"
#include "bera.h"
#include "bestat.h"
#include "beverify.h"
#include "be_dbgout.h"
-#include "beirg_t.h"
+#include "beirg.h"
#define NEW_ID(s) new_id_from_chars(s, sizeof(s) - 1)
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),
if (tflags != 0) {
flags |= tflags;
} else {
- flags |= isa_if->parse_asm_constraint(isa_if, &c);
+ flags |= isa_if->parse_asm_constraint(&c);
}
break;
}
if (strcmp(clobber, "cc") == 0)
return 1;
- return isa_if->is_valid_clobber(isa_if, clobber);
+ return isa_if->is_valid_clobber(clobber);
}
void be_register_isa_if(const char *name, const arch_isa_if_t *isa)
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);
static const backend_params be_params = {
0, /* need dword lowering */
0, /* don't support inline assembler yet */
- 0, /* no immediate floating point mode. */
- NULL, /* no additional opcodes */
NULL, /* will be set later */
NULL, /* but yet no creator function */
NULL, /* context for create_intrinsic_fkt */
NULL, /* no if conversion settings */
- NULL /* no immediate fp mode */
+ NULL, /* no float arithmetic mode */
+ 0, /* no trampoline support: size 0 */
+ 0, /* no trampoline support: align 0 */
+ NULL, /* no trampoline support: no trampoline builder */
+ 4 /* alignment of stack parameter */
};
/* Perform schedule verification if requested. */
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_dbg_open();
return env;
}
{
arch_env_done(env->arch_env);
be_dbg_close();
- be_phi_handler_free();
pmap_destroy(env->ent_trampoline_map);
pmap_destroy(env->ent_pic_symbol_map);
*/
static void initialize_birg(be_irg_t *birg, ir_graph *irg, be_main_env_t *env)
{
+ irg->be_data = birg;
+
memset(birg, 0, sizeof(*birg));
birg->irg = irg;
birg->main_env = env;
+ obstack_init(&birg->obst);
edges_deactivate_kind(irg, EDGE_KIND_DEP);
edges_activate_kind(irg, EDGE_KIND_DEP);
edges_assure(irg);
set_irg_phase_state(irg, phase_backend);
+ be_info_init_irg(irg);
dump(DUMP_INITIAL, irg, "-prepared", dump_ir_block_graph);
}
#define BE_TIMER_ONLY(code) do { if (be_timing) { code; } } while(0)
int be_timing;
-ir_timer_t *t_abi;
-ir_timer_t *t_codegen;
-ir_timer_t *t_sched;
-ir_timer_t *t_constr;
-ir_timer_t *t_finish;
-ir_timer_t *t_emit;
-ir_timer_t *t_other;
-ir_timer_t *t_verify;
-ir_timer_t *t_heights;
-ir_timer_t *t_live;
-ir_timer_t *t_execfreq;
-ir_timer_t *t_ssa_constr;
-ir_timer_t *t_ra_constr;
-ir_timer_t *t_ra_prolog;
-ir_timer_t *t_ra_epilog;
-ir_timer_t *t_ra_spill;
-ir_timer_t *t_ra_spill_apply;
-ir_timer_t *t_ra_color;
-ir_timer_t *t_ra_ifg;
-ir_timer_t *t_ra_copymin;
-ir_timer_t *t_ra_ssa;
-ir_timer_t *t_ra_other;
+
+static const char *get_timer_name(be_timer_id_t id)
+{
+ switch (id) {
+ case T_ABI: return "abi";
+ case T_CODEGEN: return "codegen";
+ case T_RA_PREPARATION: return "ra_preparation";
+ case T_SCHED: return "sched";
+ case T_CONSTR: return "constr";
+ case T_FINISH: return "finish";
+ case T_EMIT: return "emit";
+ case T_VERIFY: return "verify";
+ case T_OTHER: return "other";
+ case T_HEIGHTS: return "heights";
+ case T_LIVE: return "live";
+ case T_EXECFREQ: return "execfreq";
+ case T_SSA_CONSTR: return "ssa_constr";
+ case T_RA_PROLOG: return "ra_prolog";
+ case T_RA_EPILOG: return "ra_epilog";
+ case T_RA_CONSTR: return "ra_constr";
+ case T_RA_SPILL: return "ra_spill";
+ case T_RA_SPILL_APPLY: return "ra_spill_apply";
+ case T_RA_COLOR: return "ra_color";
+ case T_RA_IFG: return "ra_ifg";
+ case T_RA_COPYMIN: return "ra_copymin";
+ case T_RA_SSA: return "ra_ssa";
+ case T_RA_OTHER: return "ra_other";
+ }
+ return "unknown";
+}
+ir_timer_t *be_timers[T_LAST+1];
/**
* The Firm backend main loop.
*/
static void be_main_loop(FILE *file_handle, const char *cup_name)
{
- int i;
- be_main_env_t env;
- char prof_filename[256];
static const char suffix[] = ".prof";
- be_irg_t *birgs;
- int num_birgs;
- ir_graph **irg_list, **backend_irg_list;
- arch_env_t *arch_env;
+
+ int i, num_birgs, stat_active = 0;
+ be_main_env_t env;
+ char prof_filename[256];
+ be_irg_t *birgs;
+ ir_graph **irg_list, **backend_irg_list;
+ arch_env_t *arch_env;
be_timing = (be_options.timing == BE_TIME_ON);
if (be_timing) {
- 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("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");
+ for (i = 0; i < T_LAST+1; ++i) {
+ be_timers[i] = ir_timer_new();
+ }
}
be_init_env(&env, file_handle);
/* we might need 1 birg more for instrumentation constructor */
num_birgs = backend_irg_list ? ARR_LEN(backend_irg_list) : get_irp_n_irgs();
- birgs = alloca(sizeof(birgs[0]) * (num_birgs + 1));
+ birgs = ALLOCAN(be_irg_t, num_birgs + 1);
+
+ be_info_init();
/* First: initialize all birgs */
for(i = 0; i < num_birgs; ++i) {
ir_graph *irg = backend_irg_list ? backend_irg_list[i] : get_irp_irg(i);
initialize_birg(&birgs[i], irg, &env);
}
+ arch_env_handle_intrinsics(arch_env);
DEL_ARR_F(irg_list);
/*
ir_profile_read(prof_filename);
}
+#ifdef FIRM_STATISTICS
+ stat_active = stat_is_active();
+#endif /* FIRM_STATISTICS */
+
/* For all graphs */
for (i = 0; i < num_birgs; ++i) {
be_irg_t *birg = &birgs[i];
/* set the current graph (this is important for several firm functions) */
current_ir_graph = irg;
- be_sched_init_phase(irg);
-
- /* reset the phi handler. */
- be_phi_handler_reset();
-
stat_ev_if {
stat_ev_ctx_push_fobj("bemain_irg", irg);
be_stat_ev("bemain_insns_start", be_count_insns(irg));
}
/* stop and reset timers */
- BE_TIMER_PUSH(t_other); /* t_other */
+ be_timer_push(T_OTHER);
/* Verify the initial graph */
- BE_TIMER_PUSH(t_verify);
+ be_timer_push(T_VERIFY);
if (be_options.vrfy_option == BE_VRFY_WARN) {
irg_verify(irg, VRFY_ENFORCE_SSA);
be_check_dominance(irg);
assert(irg_verify(irg, VRFY_ENFORCE_SSA) && "irg verification failed");
assert(be_check_dominance(irg) && "Dominance verification failed");
}
- BE_TIMER_POP(t_verify);
+ be_timer_pop(T_VERIFY);
/* Get the code generator interface. */
cg_if = arch_env_get_code_generator_if(arch_env);
arch_code_generator_before_abi(birg->cg);
/* implement the ABI conventions. */
- BE_TIMER_PUSH(t_abi);
+ be_timer_push(T_ABI);
birg->abi = be_abi_introduce(birg);
- BE_TIMER_POP(t_abi);
+ be_timer_pop(T_ABI);
dump(DUMP_ABI, irg, "-abi", dump_ir_block_graph);
+ /* do local optimizations */
+ optimize_graph_df(irg);
+
+ /* we have to do cfopt+remove_critical_edges as we can't have Bad-blocks
+ * or critical edges in the backend */
+ optimize_cf(irg);
+ remove_critical_cf_edges(irg);
+
+ /* TODO: we often have dead code reachable through out-edges here. So for
+ * now we rebuild edges (as we need correct user count for code selection)
+ */
+ edges_deactivate(irg);
+ edges_activate(irg);
+
+ dump(DUMP_PREPARED, irg, "-pre_transform", dump_ir_block_graph_sched);
+
if (be_options.vrfy_option == BE_VRFY_WARN) {
be_check_dominance(irg);
be_verify_out_edges(irg);
}
/* generate code */
- BE_TIMER_PUSH(t_codegen);
+ be_timer_push(T_CODEGEN);
arch_code_generator_prepare_graph(birg->cg);
- BE_TIMER_POP(t_codegen);
-
- /* reset the phi handler. */
- be_phi_handler_reset();
+ be_timer_pop(T_CODEGEN);
dump(DUMP_PREPARED, irg, "-prepared", dump_ir_block_graph);
assert(be_check_dominance(irg) && "Dominance verification failed");
}
- BE_TIMER_PUSH(t_execfreq);
+ be_timer_push(T_EXECFREQ);
/**
* Create execution frequencies from profile data or estimate some
*/
edges_deactivate(irg);
birg->exec_freq = compute_execfreq(irg, 10);
}
- BE_TIMER_POP(t_execfreq);
+ be_timer_pop(T_EXECFREQ);
/* disabled for now, fails for EmptyFor.c and XXEndless.c */
/* be_live_chk_compare(birg); */
- /* let backend prepare scheduling */
- BE_TIMER_PUSH(t_codegen);
- arch_code_generator_before_sched(birg->cg);
- BE_TIMER_POP(t_codegen);
-
/* schedule the irg */
- BE_TIMER_PUSH(t_sched);
+ be_timer_push(T_SCHED);
switch (be_options.scheduler) {
default:
fprintf(stderr, "Warning: invalid scheduler (%d) selected, falling back to list scheduler.\n", be_options.scheduler);
break;
#endif /* WITH_ILP */
};
- BE_TIMER_POP(t_sched);
+ be_timer_pop(T_SCHED);
dump(DUMP_SCHED, irg, "-sched", dump_ir_block_graph_sched);
/* check schedule */
- BE_TIMER_PUSH(t_verify);
+ be_timer_push(T_VERIFY);
be_sched_vrfy(birg, be_options.vrfy_option);
- BE_TIMER_POP(t_verify);
+ be_timer_pop(T_VERIFY);
/* introduce patterns to assure constraints */
- BE_TIMER_PUSH(t_constr);
+ be_timer_push(T_CONSTR);
/* we switch off optimizations here, because they might cause trouble */
save_optimization_state(&state);
set_optimize(0);
/* 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);
+ be_timer_pop(T_CONSTR);
dump(DUMP_SCHED, irg, "-assured", dump_ir_block_graph_sched);
/* stuff needs to be done after scheduling but before register allocation */
- BE_TIMER_PUSH(t_codegen);
+ be_timer_push(T_RA_PREPARATION);
arch_code_generator_before_ra(birg->cg);
- BE_TIMER_POP(t_codegen);
+ be_timer_pop(T_RA_PREPARATION);
/* connect all stack modifying nodes together (see beabi.c) */
- BE_TIMER_PUSH(t_abi);
+ be_timer_push(T_ABI);
be_abi_fix_stack_nodes(birg->abi);
- BE_TIMER_POP(t_abi);
+ be_timer_pop(T_ABI);
dump(DUMP_SCHED, irg, "-fix_stack", dump_ir_block_graph_sched);
/* check schedule */
- BE_TIMER_PUSH(t_verify);
+ be_timer_push(T_VERIFY);
be_sched_vrfy(birg, be_options.vrfy_option);
- BE_TIMER_POP(t_verify);
+ be_timer_pop(T_VERIFY);
stat_ev_if {
stat_ev_dbl("bemain_costs_before_ra",
- be_estimate_irg_costs(irg, arch_env, birg->exec_freq));
+ 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));
}
be_allocate_registers(birg);
#ifdef FIRM_STATISTICS
- stat_ev_dbl("bemain_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);
/* let the code generator prepare the graph for emitter */
- BE_TIMER_PUSH(t_finish);
+ be_timer_push(T_FINISH);
arch_code_generator_after_ra(birg->cg);
- BE_TIMER_POP(t_finish);
+ be_timer_pop(T_FINISH);
/* fix stack offsets */
- BE_TIMER_PUSH(t_abi);
+ be_timer_push(T_ABI);
be_abi_fix_stack_nodes(birg->abi);
be_remove_dead_nodes_from_schedule(birg);
be_abi_fix_stack_bias(birg->abi);
- BE_TIMER_POP(t_abi);
+ be_timer_pop(T_ABI);
dump(DUMP_SCHED, irg, "-fix_stack_after_ra", dump_ir_block_graph_sched);
- BE_TIMER_PUSH(t_finish);
+ be_timer_push(T_FINISH);
arch_code_generator_finish(birg->cg);
- BE_TIMER_POP(t_finish);
+ be_timer_pop(T_FINISH);
dump(DUMP_FINAL, irg, "-finish", dump_ir_block_graph_sched);
}
/* check schedule and register allocation */
- BE_TIMER_PUSH(t_verify);
+ be_timer_push(T_VERIFY);
if (be_options.vrfy_option == BE_VRFY_WARN) {
irg_verify(irg, VRFY_ENFORCE_SSA);
be_check_dominance(irg);
&& "register allocation verification failed");
}
- BE_TIMER_POP(t_verify);
+ be_timer_pop(T_VERIFY);
/* emit assembler code */
- BE_TIMER_PUSH(t_emit);
+ be_timer_push(T_EMIT);
arch_code_generator_done(birg->cg);
- BE_TIMER_POP(t_emit);
+ be_timer_pop(T_EMIT);
dump(DUMP_FINAL, irg, "-end", dump_ir_block_graph_sched);
- BE_TIMER_PUSH(t_abi);
+ be_timer_push(T_ABI);
be_abi_free(birg->abi);
- BE_TIMER_POP(t_abi);
+ be_timer_pop(T_ABI);
restore_optimization_state(&state);
- BE_TIMER_POP(t_other);
-
-#define STOP_AND_RESET_TIMER(timer) do { ir_timer_stop(timer); ir_timer_reset(timer); } while(0)
-
-#define LC_EMIT(timer) \
- stat_ev_if { \
- stat_ev_dbl(ir_timer_get_name(timer), ir_timer_elapsed_msec(timer)); \
- } else { \
- printf("%-20s: %8.3lf msec\n", ir_timer_get_description(timer), (double)ir_timer_elapsed_usec(timer) / 1000.0); \
- } \
- STOP_AND_RESET_TIMER(timer);
-
- BE_TIMER_ONLY(
- stat_ev_if {
+ be_timer_pop(T_OTHER);
+
+ if (be_timing) {
+ int t;
+ if (stat_ev_enabled) {
+ for (t = 0; t < T_LAST+1; ++t) {
+ char buf[128];
+ snprintf(buf, sizeof(buf), "bemain_time_%s",
+ get_timer_name(t));
+ stat_ev_dbl(buf, ir_timer_elapsed_usec(be_timers[i]));
+ }
} else {
- printf("==>> IRG %s <<==\n", get_entity_name(get_irg_entity(irg)));
+ printf("==>> IRG %s <<==\n",
+ get_entity_name(get_irg_entity(irg)));
+ for (t = 0; t < T_LAST+1; ++t) {
+ double val = ir_timer_elapsed_usec(be_timers[t]) / 1000.0;
+ printf("%-20s: %8.3lf msec\n", get_timer_name(t), val);
+ }
+ }
+ for (t = 0; t < T_LAST+1; ++t) {
+ ir_timer_stop(be_timers[t]);
+ ir_timer_reset(be_timers[t]);
}
- LC_EMIT(t_abi);
- LC_EMIT(t_codegen);
- LC_EMIT(t_sched);
- LC_EMIT(t_live);
- LC_EMIT(t_heights);
- LC_EMIT(t_ssa_constr);
- LC_EMIT(t_constr);
- LC_EMIT(t_execfreq);
- LC_EMIT(t_ra_prolog);
- LC_EMIT(t_ra_spill);
- LC_EMIT(t_ra_spill_apply);
- LC_EMIT(t_ra_constr);
- LC_EMIT(t_ra_color);
- LC_EMIT(t_ra_ifg);
- LC_EMIT(t_ra_copymin);
- LC_EMIT(t_ra_ssa);
- LC_EMIT(t_ra_epilog);
- LC_EMIT(t_ra_other);
- LC_EMIT(t_finish);
- LC_EMIT(t_emit);
- LC_EMIT(t_verify);
- LC_EMIT(t_other);
- );
-#undef LC_EMIT
-
- be_sched_free_phase(irg);
+ }
be_free_birg(birg);
stat_ev_ctx_pop("bemain_irg");
}
ir_profile_free();
be_done_env(&env);
+
+ be_info_free();
}
/* Main interface to the frontend. */
/* 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);
}
}
if (be_options.timing == BE_TIME_ON) {
- t = ir_timer_register("bemain", "measure complete bemain loop");
+ t = ir_timer_new();
if (ir_timer_enter_high_priority()) {
fprintf(stderr, "Warning: Could not enter high priority mode.\n");
if (be_options.statev) {
const char *dot = strrchr(cup_name, '.');
const char *pos = dot ? dot : cup_name + strlen(cup_name);
- char *buf = alloca(pos - cup_name + 1);
+ char *buf = ALLOCAN(char, pos - cup_name + 1);
strncpy(buf, cup_name, pos - cup_name);
buf[pos - cup_name] = '\0';
/* never build code for pseudo irgs */
set_visit_pseudo_irgs(0);
- be_node_init();
-
be_main_loop(file_handle, cup_name);
if (be_options.timing == BE_TIME_ON) {
stat_ev_if {
stat_ev_dbl("bemain_backend_time", ir_timer_elapsed_msec(t));
} else {
- printf("%-20s: %lu msec\n", "BEMAINLOOP", ir_timer_elapsed_msec(t));
+ double val = ir_timer_elapsed_usec(t) / 1000.0;
+ printf("%-20s: %8.3lf msec\n", "BEMAINLOOP", val);
}
}
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);
projects / libfirm / blobdiff