#include <stdarg.h>
#include <stdio.h>
-#include <libcore/lc_opts.h>
-#include <libcore/lc_opts_enum.h>
+#include "lc_opts.h"
+#include "lc_opts_enum.h"
#include "obst.h"
#include "bitset.h"
#include "be_dbgout.h"
#include "beirg_t.h"
+#define NEW_ID(s) new_id_from_chars(s, sizeof(s) - 1)
+
#ifdef WITH_ILP
#include "beilpsched.h"
#endif /* WITH_ILP */
BE_TIME_OFF, /* no timing */
0, /* no opt profile */
0, /* try to omit frame pointer */
- 0, /* no stabs debugging output */
+ 0, /* try to omit leaf frame pointer */
+ 0, /* create PIC code */
+ 0, /* create gprof compatible profiling code */
BE_VRFY_WARN, /* verification level: warn */
BE_SCHED_LIST, /* scheduler: list scheduler */
+ "linux", /* target OS name */
"i44pc52.info.uni-karlsruhe.de", /* ilp server */
"cplex", /* ilp solver */
0, /* enable statistic event dumping */
};
static const lc_opt_table_entry_t be_main_options[] = {
- LC_OPT_ENT_STR ("config", "read another config file containing backend options", config_file, sizeof(config_file)),
- LC_OPT_ENT_ENUM_MASK("dump", "dump irg on several occasions", &dump_var),
- LC_OPT_ENT_BOOL ("omitfp", "omit frame pointer", &be_options.omit_fp),
- LC_OPT_ENT_BOOL ("stabs", "enable stabs debug support", &be_options.stabs_debug_support),
- LC_OPT_ENT_ENUM_PTR ("vrfy", "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),
+ LC_OPT_ENT_STR ("config", "read another config file containing backend options", config_file, sizeof(config_file)),
+ LC_OPT_ENT_ENUM_MASK("dump", "dump irg on several occasions", &dump_var),
+ LC_OPT_ENT_BOOL ("omitfp", "omit frame pointer", &be_options.omit_fp),
+ 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_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),
+ LC_OPT_ENT_STR ("os", "specify target operating system", &be_options.target_os, sizeof(be_options.target_os)),
#ifdef FIRM_STATISTICS
- LC_OPT_ENT_BOOL ("statev", "dump statistic events", &be_options.statev),
- LC_OPT_ENT_STR ("filtev", "filter for stat events (regex if support is active", &be_options.printev, sizeof(be_options.printev)),
+ LC_OPT_ENT_BOOL ("statev", "dump statistic events", &be_options.statev),
+ LC_OPT_ENT_STR ("filtev", "filter for stat events (regex if support is active", &be_options.filtev, sizeof(be_options.filtev)),
#endif
#ifdef WITH_ILP
static be_module_list_entry_t *isa_ifs = NULL;
+
+unsigned short asm_constraint_flags[256];
+
+void be_init_default_asm_constraint_flags(void)
+{
+ asm_constraint_flags['?'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags['!'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags['&'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT
+ | ASM_CONSTRAINT_FLAG_MODIFIER_EARLYCLOBBER;
+ asm_constraint_flags['%'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT
+ | ASM_CONSTRAINT_FLAG_MODIFIER_COMMUTATIVE;
+ asm_constraint_flags['!'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+
+ asm_constraint_flags['='] = ASM_CONSTRAINT_FLAG_MODIFIER_WRITE
+ | ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ;
+ asm_constraint_flags['+'] = ASM_CONSTRAINT_FLAG_MODIFIER_READ
+ | ASM_CONSTRAINT_FLAG_MODIFIER_WRITE;
+
+ asm_constraint_flags['i'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['s'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['E'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['F'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['G'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['H'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['I'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['J'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['K'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['L'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['M'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['N'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['O'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['P'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+
+ asm_constraint_flags['m'] = ASM_CONSTRAINT_FLAG_SUPPORTS_MEMOP;
+ asm_constraint_flags['o'] = ASM_CONSTRAINT_FLAG_SUPPORTS_MEMOP;
+ asm_constraint_flags['V'] = ASM_CONSTRAINT_FLAG_SUPPORTS_MEMOP;
+ asm_constraint_flags['<'] = ASM_CONSTRAINT_FLAG_SUPPORTS_MEMOP;
+ asm_constraint_flags['>'] = ASM_CONSTRAINT_FLAG_SUPPORTS_MEMOP;
+
+ asm_constraint_flags['p'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['0'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['1'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['2'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['3'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['4'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['5'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['6'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['7'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['8'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['9'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+
+ asm_constraint_flags['X'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER
+ | ASM_CONSTRAINT_FLAG_SUPPORTS_MEMOP
+ | ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+
+ /* these should have been catched by the parsing code already */
+ asm_constraint_flags['#'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags['*'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags[' '] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags['\t'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags['\n'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags['\r'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+}
+
+asm_constraint_flags_t be_parse_asm_constraints(const char *constraint)
+{
+ asm_constraint_flags_t flags = 0;
+ const char *c;
+ asm_constraint_flags_t tflags;
+
+ for (c = constraint; *c != '\0'; ++c) {
+ switch (*c) {
+ case '#':
+ /* 'comment' stuff */
+ while(*c != 0 && *c != ',')
+ ++c;
+ break;
+ case '*':
+ /* 'comment' character */
+ ++c;
+ break;
+ case ' ':
+ case '\t':
+ case '\n':
+ case '\r':
+ break;
+ default:
+ tflags = asm_constraint_flags[(int) *c];
+ if (tflags != 0) {
+ flags |= tflags;
+ } else {
+ flags |= isa_if->parse_asm_constraint(isa_if, &c);
+ }
+ break;
+ }
+ }
+
+ 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)
+ )) {
+ flags |= ASM_CONSTRAINT_FLAG_MODIFIER_READ;
+ }
+
+ return flags;
+}
+
+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 1;
+ /* cc (condition code) is always valid */
+ if (strcmp(clobber, "cc") == 0)
+ return 1;
+
+ return isa_if->is_valid_clobber(isa_if, clobber);
+}
+
void be_register_isa_if(const char *name, const arch_isa_if_t *isa)
{
- if(isa_if == NULL)
+ if (isa_if == NULL)
isa_if = isa;
be_add_module_to_list(&isa_ifs, name, (void*) isa);
/** The be parameters returned by default, all off. */
static const backend_params be_params = {
0, /* need dword lowering */
- 0, /* don't support inlien assembler yet */
+ 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 */
};
/* Perform schedule verification if requested. */
static void be_sched_vrfy(be_irg_t *birg, int vrfy_opt) {
if (vrfy_opt == BE_VRFY_WARN) {
be_verify_schedule(birg);
- }
- else if (vrfy_opt == BE_VRFY_ASSERT) {
+ } else if (vrfy_opt == BE_VRFY_ASSERT) {
assert(be_verify_schedule(birg) && "Schedule verification failed.");
}
}
-/* Initialize the Firm backend. Must be run BEFORE init_firm()! */
-const backend_params *be_init(void)
+/* Initialize the Firm backend. Must be run first in init_firm()! */
+void firm_be_init(void)
{
be_opt_register();
be_init_modules();
+}
+
+/* Finalize the Firm backend. */
+void firm_be_finish(void)
+{
+ be_quit_modules();
+}
+/* Returns the backend parameter */
+const backend_params *be_get_backend_param(void)
+{
if (isa_if->get_params)
return isa_if->get_params();
return &be_params;
static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle)
{
memset(env, 0, sizeof(*env));
- obstack_init(&env->obst);
- env->arch_env = obstack_alloc(&env->obst, sizeof(env->arch_env[0]));
- env->options = &be_options;
+ env->options = &be_options;
+ 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"));
- arch_env_init(env->arch_env, isa_if, file_handle, env);
+ remove_irp_type(env->pic_trampolines_type);
+ remove_irp_type(env->pic_symbols_type);
+ set_class_final(env->pic_trampolines_type, 1);
- /* Register the irn handler of the architecture */
- if (arch_isa_get_irn_handler(env->arch_env->isa))
- arch_env_push_irn_handler(env->arch_env, arch_isa_get_irn_handler(env->arch_env->isa));
+ memset(asm_constraint_flags, 0, sizeof(asm_constraint_flags));
+ env->arch_env = arch_env_init(isa_if, file_handle, env);
- /*
- * 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_push_irn_handler(env->arch_env, &be_node_irn_handler);
- env->phi_handler = be_phi_handler_new(env->arch_env);
- arch_env_push_irn_handler(env->arch_env, env->phi_handler);
-
- env->db_handle = be_options.stabs_debug_support ? be_stabs_open(file_handle) : be_nulldbg_open();
+ be_phi_handler_new(env);
+
+ be_dbg_open();
return env;
}
+/**
+ * Called when the be_main_env_t can be destroyed.
+ */
static void be_done_env(be_main_env_t *env)
{
- env->arch_env->isa->impl->done(env->arch_env->isa);
- be_dbg_close(env->db_handle);
- be_phi_handler_free(env->phi_handler);
- obstack_free(&env->obst, NULL);
+ 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);
+ free_type(env->pic_trampolines_type);
+ free_type(env->pic_symbols_type);
}
/**
normalize_n_returns(irg);
/* Remove critical edges */
- remove_critical_cf_edges(irg);
+ remove_critical_cf_edges_ex(irg, /*ignore_exception_edges=*/0);
/* Ensure, that the ir_edges are computed. */
edges_assure(irg);
static void be_main_loop(FILE *file_handle, const char *cup_name)
{
int i;
- arch_isa_t *isa;
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;
be_timing = (be_options.timing == BE_TIME_ON);
if (be_timing) {
- t_abi = ir_timer_register("time_beabi", "be abi introduction");
+ 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_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_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");
be_init_env(&env, file_handle);
env.cup_name = cup_name;
- isa = arch_env_get_isa(env.arch_env);
+ be_dbg_so(cup_name);
+ be_dbg_types();
- be_dbg_so(env.db_handle, cup_name);
- be_dbg_types(env.db_handle);
+ 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_isa_get_backend_irg_list(isa, &irg_list);
+ 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();
ir_graph *prof_init_irg = ir_profile_instrument(prof_filename, profile_default);
initialize_birg(&birgs[num_birgs], prof_init_irg, &env);
num_birgs++;
- set_method_img_section(get_irg_entity(prof_init_irg), section_constructors);
} else {
ir_profile_read(prof_filename);
}
/* 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(env.phi_handler);
+ be_phi_handler_reset();
stat_ev_ctx_push_fobj("bemain_irg", irg);
BE_TIMER_POP(t_verify);
/* Get the code generator interface. */
- cg_if = isa->impl->get_code_generator_if(isa);
+ cg_if = arch_env_get_code_generator_if(arch_env);
/* get a code generator for this graph. */
birg->cg = cg_if->init(birg);
stat_ev_ctx_pop("bemain_phase");
/* reset the phi handler. */
- be_phi_handler_reset(env.phi_handler);
+ be_phi_handler_reset();
be_do_stat_nodes(irg, "03 Prepare");
*/
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);
//be_do_stat_reg_pressure(birg);
#ifdef FIRM_STATISTICS
- stat_ev_dbl("costs_before_ra", be_estimate_irg_costs(irg, env.arch_env, birg->exec_freq));
+ stat_ev_dbl("costs_before_ra", be_estimate_irg_costs(irg, arch_env, birg->exec_freq));
#endif
/* Do register allocation */
be_allocate_registers(birg);
#ifdef FIRM_STATISTICS
- stat_ev_dbl("costs_before_ra", be_estimate_irg_costs(irg, env.arch_env, birg->exec_freq));
+ stat_ev_dbl("costs_before_ra", be_estimate_irg_costs(irg, arch_env, birg->exec_freq));
#endif
dump(DUMP_RA, irg, "-ra", dump_ir_block_graph_sched);
ir_timer_t *t = NULL;
/* The user specified another config file to read. do that now. */
- if(strlen(config_file) > 0) {
+ if (config_file[0] != '\0') {
FILE *f;
- if((f = fopen(config_file, "rt")) != NULL) {
+ if ((f = fopen(config_file, "rt")) != NULL) {
lc_opt_from_file(config_file, f, NULL);
fclose(f);
}
buf[pos - cup_name] = '\0';
be_options.statev = 1;
- stat_ev_begin(buf, be_options.printev);
+ stat_ev_begin(buf, be_options.filtev);
}
#endif
projects / libfirm / blobdiff