#ifdef WITH_LIBCORE
#include <libcore/lc_opts.h>
#include <libcore/lc_opts_enum.h>
-#endif
+#endif /* WITH_LIBCORE */
#include "obst.h"
#include "bitset.h"
#include "irloop_t.h"
#include "irtools.h"
+#include "bearch.h"
+#include "firm/bearch_firm.h"
+#include "ia32/bearch_ia32.h"
+
#include "be_t.h"
-#include "bechordal_t.h"
-#include "bera.h"
-#include "beifg.h"
-#include "beifg_impl.h"
#include "benumb_t.h"
+#include "beutil.h"
+#include "benode_t.h"
+#include "beirgmod.h"
#include "besched_t.h"
#include "belistsched.h"
#include "belive_t.h"
-#include "beutil.h"
-#include "bechordal.h"
-#include "bearch.h"
+#include "bespillilp.h"
+#include "bespillbelady.h"
+#include "bera.h"
+#include "beraextern.h"
+#include "bechordal_t.h"
+#include "beifg.h"
+#include "beifg_impl.h"
#include "becopyoptmain.h"
#include "becopystat.h"
#include "bessadestr.h"
-#include "benode_t.h"
-#include "beirgmod.h"
-#include "bespillilp.h"
-#include "bespillbelady.h"
+#include "beabi.h"
-#include "firm/bearch_firm.h"
#define DUMP_INITIAL (1 << 0)
#define DUMP_SCHED (1 << 1)
#define DUMP_PREPARED (1 << 2)
-#define DUMP_FINAL (1 << 3)
+#define DUMP_RA (1 << 3)
+#define DUMP_FINAL (1 << 4)
/* options visible for anyone */
be_options_t be_options = {
};
/* dump flags */
-static unsigned dump_flags = 0;
+static unsigned dump_flags = DUMP_INITIAL | DUMP_SCHED | DUMP_PREPARED | DUMP_RA | DUMP_FINAL;
/* register allocator to use. */
static const be_ra_t *ra = &be_ra_chordal_allocator;
/* back end instruction set architecture to use */
-static const arch_isa_if_t *isa_if = &firm_isa;
+static const arch_isa_if_t *isa_if = &ia32_isa_if;
#ifdef WITH_LIBCORE
{ "initial", DUMP_INITIAL },
{ "sched", DUMP_SCHED },
{ "prepared", DUMP_PREPARED },
+ { "regalloc", DUMP_RA },
{ "final", DUMP_FINAL },
{ "all", 2 * DUMP_FINAL - 1 },
{ NULL, 0 }
/* register allocators */
static const lc_opt_enum_const_ptr_items_t ra_items[] = {
{ "chordal", &be_ra_chordal_allocator },
+ { "external", &be_ra_external_allocator },
{ NULL, NULL }
};
/* instruction set architectures. */
static const lc_opt_enum_const_ptr_items_t isa_items[] = {
{ "firm", &firm_isa },
+ { "ia32", &ia32_isa_if },
{ NULL, NULL }
};
};
static const lc_opt_table_entry_t be_main_options[] = {
- LC_OPT_ENT_ENUM_MASK("dump", "dump irg on several occasions", &dump_var),
- LC_OPT_ENT_ENUM_PTR("ra", "register allocator", &ra_var),
- LC_OPT_ENT_ENUM_PTR("isa", "the instruction set architecture", &isa_var),
+ LC_OPT_ENT_ENUM_MASK("dump", "dump irg on several occasions", &dump_var),
+ LC_OPT_ENT_ENUM_PTR("ra", "register allocator", &ra_var),
+ LC_OPT_ENT_ENUM_PTR("isa", "the instruction set architecture", &isa_var),
- LC_OPT_ENT_STR ("ilp.server", "the ilp server name", be_options.ilp_server, sizeof(be_options.ilp_server)),
- LC_OPT_ENT_STR ("ilp.solver", "the ilp solver name", be_options.ilp_solver, sizeof(be_options.ilp_solver)),
+ LC_OPT_ENT_STR ("ilp.server", "the ilp server name", be_options.ilp_server, sizeof(be_options.ilp_server)),
+ LC_OPT_ENT_STR ("ilp.solver", "the ilp solver name", be_options.ilp_solver, sizeof(be_options.ilp_solver)),
{ NULL }
};
-#endif
+#endif /* WITH_LIBCORE */
void be_opt_register(void)
{
#ifdef WITH_LIBCORE
int i;
+ lc_opt_entry_t *be_grp_ra;
be_grp_root = lc_opt_get_grp(firm_opt_get_root(), "be");
+ be_grp_ra = lc_opt_get_grp(be_grp_root, "ra");
lc_opt_add_table(be_grp_root, be_main_options);
- /* register register allocator options */
+ /* register allocator options */
for(i = 0; ra_items[i].name != NULL; ++i) {
const be_ra_t *ra = ra_items[i].value;
- ra->register_options(be_grp_root);
+ ra->register_options(be_grp_ra);
}
/* register isa options */
const arch_isa_if_t *isa = isa_items[i].value;
isa->register_options(be_grp_root);
}
-#endif
+#endif /* WITH_LIBCORE */
}
static be_main_env_t *be_init_env(be_main_env_t *env)
{
- obstack_init(&env->obst);
- env->dbg = firm_dbg_register("be.main");
+ int i, j, n;
- env->arch_env = obstack_alloc(&env->obst, sizeof(env->arch_env[0]));
- arch_env_init(env->arch_env, isa_if);
+ obstack_init(&env->obst);
+ env->dbg = firm_dbg_register("be.main");
- /* Register the irn handler of the architecture */
- if (arch_isa_get_irn_handler(env->arch_env->isa))
+ env->arch_env = obstack_alloc(&env->obst, sizeof(env->arch_env[0]));
+ arch_env_init(env->arch_env, isa_if);
+
+ /* Register the irn handler of the architecture */
+ if (arch_isa_get_irn_handler(env->arch_env->isa))
arch_env_add_irn_handler(env->arch_env, arch_isa_get_irn_handler(env->arch_env->isa));
- /*
- * Register the node handler of the back end infrastructure.
- * This irn handler takes care of the platform independent
- * spill, reload and perm nodes.
- */
- env->node_factory = obstack_alloc(&env->obst, sizeof(*env->node_factory));
- be_node_factory_init(env->node_factory, env->arch_env->isa);
- arch_env_add_irn_handler(env->arch_env, be_node_get_irn_handler(env->node_factory));
+ /*
+ * Register the node handler of the back end infrastructure.
+ * This irn handler takes care of the platform independent
+ * spill, reload and perm nodes.
+ */
+ arch_env_add_irn_handler(env->arch_env, &be_node_irn_handler);
+
+ /*
+ * Create the list of caller save registers.
+ */
+ for(i = 0, n = arch_isa_get_n_reg_class(env->arch_env->isa); i < n; ++i) {
+ const arch_register_class_t *cls = arch_isa_get_reg_class(env->arch_env->isa, i);
+ for(j = 0; j < cls->n_regs; ++j) {
+ const arch_register_t *reg = arch_register_for_index(cls, j);
+ if(arch_register_type_is(reg, caller_save))
+ obstack_ptr_grow(&env->obst, reg);
+ }
+ }
+ obstack_ptr_grow(&env->obst, NULL);
+ env->caller_save = obstack_finish(&env->obst);
+
+ /*
+ * Create the list of callee save registers.
+ */
+ for(i = 0, n = arch_isa_get_n_reg_class(env->arch_env->isa); i < n; ++i) {
+ const arch_register_class_t *cls = arch_isa_get_reg_class(env->arch_env->isa, i);
+ for(j = 0; j < cls->n_regs; ++j) {
+ const arch_register_t *reg = arch_register_for_index(cls, j);
+ if(arch_register_type_is(reg, callee_save))
+ obstack_ptr_grow(&env->obst, reg);
+ }
+ }
+ obstack_ptr_grow(&env->obst, NULL);
+ env->callee_save = obstack_finish(&env->obst);
- return env;
+ return env;
}
static void be_done_env(be_main_env_t *env)
dumper(irg, suffix);
}
-static void prepare_graph(be_main_env_t *s, ir_graph *irg)
+static void prepare_graph(be_irg_t *birg)
{
+ ir_graph *irg = birg->irg;
+
/* Normalize proj nodes. */
normalize_proj_nodes(irg);
remove_critical_cf_edges(irg);
/* Compute the dominance information. */
- free_dom_and_peace(irg);
+ free_dom(irg);
compute_doms(irg);
/* Ensure, that the ir_edges are computed. */
if (get_irg_loopinfo_state(irg) != (loopinfo_valid & loopinfo_cf_consistent))
construct_cf_backedges(irg);
+ /* check, if the dominance property is fulfilled. */
be_check_dominance(irg);
+
+ /* compute the dominance frontiers. */
+ birg->dom_front = be_compute_dominance_frontiers(irg);
}
-static void be_main_loop(void)
+static void be_main_loop(FILE *file_handle)
{
int i, n;
arch_isa_t *isa;
/* For all graphs */
for(i = 0, n = get_irp_n_irgs(); i < n; ++i) {
ir_graph *irg = get_irp_irg(i);
+ const arch_code_generator_if_t *cg_if;
+ be_irg_t birg;
- arch_code_generator_t *cg;
+ birg.irg = irg;
+ birg.main_env = &env;
DBG((env.dbg, LEVEL_2, "====> IRG: %F\n", irg));
dump(DUMP_INITIAL, irg, "-begin", dump_ir_block_graph);
/* set the current graph (this is important for several firm functions) */
- current_ir_graph = irg;
+ current_ir_graph = birg.irg;
+
+ /* Get the code generator interface. */
+ cg_if = isa->impl->get_code_generator_if(isa);
/* get a code generator for this graph. */
- cg = arch_isa_make_code_generator(isa, irg);
+ birg.cg = cg_if->init(file_handle, birg.irg, env.arch_env);
/* create the code generator and generate code. */
- prepare_graph(&env, irg);
- arch_code_generator_prepare_graph(cg);
+ prepare_graph(&birg);
+
+ /* implement the ABI conventions. */
+ // birg.abi = be_abi_introduce(&birg);
+ arch_code_generator_prepare_graph(birg.cg);
+
+ /*
+ * Since the code generator made a lot of new nodes and skipped
+ * a lot of old ones, we should do dead node elim here.
+ * Note that this requires disabling the edges here.
+ */
edges_deactivate(irg);
dead_node_elimination(irg);
edges_activate(irg);
dump(DUMP_PREPARED, irg, "-prepared", dump_ir_block_graph);
/* Schedule the graphs. */
- arch_code_generator_before_sched(cg);
+ arch_code_generator_before_sched(birg.cg);
list_sched(isa, irg);
dump(DUMP_SCHED, irg, "-sched", dump_ir_block_graph_sched);
+ /* connect all stack modifying nodes together (see beabi.c) */
+ // be_abi_fix_stack(birg.abi);
+
/* Verify the schedule */
sched_verify_irg(irg);
/* Do register allocation */
- arch_code_generator_before_ra(cg);
- ra->allocate(&env, irg);
+ arch_code_generator_before_ra(birg.cg);
+ ra->allocate(&birg);
- arch_code_generator_done(cg);
+ dump(DUMP_RA, irg, "-ra", dump_ir_block_graph_sched);
+
+ arch_code_generator_done(birg.cg);
dump(DUMP_FINAL, irg, "-end", dump_ir_block_graph_sched);
+
+ be_free_dominance_frontiers(birg.dom_front);
}
be_done_env(&env);
}
-void be_main(int argc, const char *argv[])
+void be_main(FILE *file_handle)
{
- be_main_loop();
+ be_node_init();
+ be_main_loop(file_handle);
}