* @brief Main Backend driver.
* @author Sebastian Hack
* @date 25.11.2004
- * @version $Id$
*/
#include "config.h"
#include "execfreq.h"
#include "irprofile.h"
#include "irpass_t.h"
+#include "ircons.h"
#include "bearch.h"
#include "be_t.h"
LC_OPT_LAST
};
-static be_module_list_entry_t *isa_ifs = NULL;
-
+static be_module_list_entry_t *isa_ifs = NULL;
+static bool isa_initialized = false;
asm_constraint_flags_t asm_constraint_flags[256];
+static void initialize_isa(void)
+{
+ if (isa_initialized)
+ return;
+ isa_if->init();
+ isa_initialized = true;
+}
+
+static void finish_isa(void)
+{
+ if (isa_initialized) {
+ isa_if->finish();
+ isa_initialized = false;
+ }
+}
+
void be_init_default_asm_constraint_flags(void)
{
asm_constraint_flags['?'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
const char *c;
asm_constraint_flags_t tflags;
+ initialize_isa();
+
for (c = constraint; *c != '\0'; ++c) {
switch (*c) {
case '#':
int be_is_valid_clobber(const char *clobber)
{
+ initialize_isa();
+
/* 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)
be_add_module_to_list(&isa_ifs, name, (void*) isa);
}
-void be_opt_register(void)
+static void be_opt_register(void)
{
lc_opt_entry_t *be_grp;
static int run_once = 0;
/* Finalize the Firm backend. */
void firm_be_finish(void)
{
+ finish_isa();
be_quit_modules();
}
/* Returns the backend parameter */
const backend_params *be_get_backend_param(void)
{
+ initialize_isa();
return isa_if->get_params();
}
* @param env an empty environment
* @param file_handle the file handle where the output will be written to
*/
-static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle)
+static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle,
+ const char *compilation_unit_name)
{
memset(env, 0, sizeof(*env));
env->options = &be_options;
+ env->file_handle = file_handle;
env->ent_trampoline_map = pmap_create();
env->pic_trampolines_type = new_type_class(NEW_ID("$PIC_TRAMPOLINE_TYPE"));
env->ent_pic_symbol_map = pmap_create();
env->pic_symbols_type = new_type_struct(NEW_ID("$PIC_SYMBOLS_TYPE"));
+ env->cup_name = compilation_unit_name;
- remove_irp_type(env->pic_trampolines_type);
- remove_irp_type(env->pic_symbols_type);
set_class_final(env->pic_trampolines_type, 1);
memset(asm_constraint_flags, 0, sizeof(asm_constraint_flags));
- env->arch_env = arch_env_init(isa_if, file_handle, env);
+ env->arch_env = arch_env_begin_codegeneration(isa_if, env);
return env;
}
{
size_t i;
+ initialize_isa();
+
+ /* shouldn't lower program twice */
+ assert(get_irp_phase_state() != phase_low);
+
isa_if->lower_for_target();
/* set the phase to low */
for (i = get_irp_n_irgs(); i > 0;) {
set_irp_phase_state(phase_low);
}
-static void emit_global_asms(void)
-{
- size_t n = get_irp_n_asms();
- size_t i;
- for (i = 0; i < n; ++i) {
- be_emit_cstring("#APP\n");
- be_emit_ident(get_irp_asm(i));
- be_emit_cstring("\n#NO_APP\n");
- }
-}
-
/**
* The Firm backend main loop.
* Do architecture specific lowering for all graphs
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);
+ /* perform target lowering if it didn't happen yet */
+ if (get_irp_phase_state() != phase_low)
+ be_lower_for_target();
+
if (be_timing) {
for (i = 0; i < T_LAST+1; ++i) {
be_timers[i] = ir_timer_new();
}
}
- be_init_env(&env, file_handle);
- env.cup_name = cup_name;
-
- be_dbg_open();
- be_dbg_unit_begin(cup_name);
- be_dbg_types();
-
- emit_global_asms();
+ be_init_env(&env, file_handle, cup_name);
arch_env = env.arch_env;
- /* 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);
-
/* we might need 1 birg more for instrumentation constructor */
- num_birgs = backend_irg_list ? ARR_LEN(backend_irg_list) : get_irp_n_irgs();
+ num_birgs = get_irp_n_irgs();
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);
+ ir_graph *irg = get_irp_irg(i);
initialize_birg(&birgs[i], irg, &env);
}
arch_env_handle_intrinsics(arch_env);
- DEL_ARR_F(irg_list);
/*
Get the filename for the profiling data.
prof_filename);
}
}
- if (be_options.opt_profile_generate) {
+ if (num_birgs > 0 && be_options.opt_profile_generate) {
ir_graph *prof_init_irg
= ir_profile_instrument(prof_filename);
initialize_birg(&birgs[num_birgs], prof_init_irg, &env);
dump(DUMP_RA, irg, "ra");
be_timer_push(T_FINISH);
- if (arch_env->impl->finish != NULL)
- arch_env->impl->finish(irg);
+ if (arch_env->impl->finish_graph != NULL)
+ arch_env->impl->finish_graph(irg);
be_timer_pop(T_FINISH);
dump(DUMP_FINAL, irg, "finish");
stat_ev_ctx_pop("bemain_irg");
}
- be_dbg_unit_end();
- be_dbg_close();
-
- arch_env_done(arch_env);
+ arch_env_end_codegeneration(arch_env);
ir_profile_free();
be_done_env(&env);
projects / libfirm / blobdiff