X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbemain.c;h=544a525a53a05b96f1025c9f79e5804035164d93;hb=333bc9c7aba2e2dbb8a3f108e73d6fd1c95dcc9f;hp=f34dacb62f840139555bfbcb48619d3a415a33f6;hpb=fdef2b39113f0615d0e715a884be2833f05b8ee5;p=libfirm diff --git a/ir/be/bemain.c b/ir/be/bemain.c index f34dacb62..544a525a5 100644 --- a/ir/be/bemain.c +++ b/ir/be/bemain.c @@ -89,6 +89,7 @@ static be_options_t be_options = { BE_TIME_OFF, /* no timing */ 0, /* no opt profile */ 0, /* try to omit frame pointer */ + 0, /* try to omit leaf frame pointer */ 0, /* create PIC code */ 0, /* create gprof compatible profiling code */ BE_VRFY_WARN, /* verification level: warn */ @@ -150,19 +151,20 @@ static lc_opt_enum_int_var_t sched_var = { }; 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 ("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)), + 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.filtev, sizeof(be_options.filtev)), + 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 @@ -174,6 +176,132 @@ static const lc_opt_table_entry_t be_main_options[] = { 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; +} + +bool 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; + /* cc (condition code) is always valid */ + if (strcmp(clobber, "cc") == 0) + return true; + + 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) @@ -214,12 +342,14 @@ int be_parse_arg(const char *arg) { /** 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. */ @@ -231,12 +361,16 @@ static void be_sched_vrfy(be_irg_t *birg, int vrfy_opt) { } } -/* 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(); +} +/* 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; @@ -250,8 +384,6 @@ const backend_params *be_init(void) */ static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle) { - arch_get_irn_ops_t *handler; - memset(env, 0, sizeof(*env)); env->options = &be_options; env->ent_trampoline_map = pmap_create(); @@ -263,21 +395,10 @@ static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle) remove_irp_type(env->pic_symbols_type); set_class_final(env->pic_trampolines_type, 1); - arch_env_init(&env->arch_env, isa_if, file_handle, env); - - /* Register the irn handler of the architecture */ - handler = arch_isa_get_irn_handler(env->arch_env.isa); - if (handler != NULL) - arch_env_push_irn_handler(&env->arch_env, handler); + 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_get_irn_ops); be_phi_handler_new(env); - arch_env_push_irn_handler(&env->arch_env, env->phi_handler.get_irn_ops); be_dbg_open(); return env; @@ -288,9 +409,9 @@ static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle) */ static void be_done_env(be_main_env_t *env) { - env->arch_env.isa->impl->done(env->arch_env.isa); + arch_env_done(env->arch_env); be_dbg_close(); - be_phi_handler_free(env); + be_phi_handler_free(); pmap_destroy(env->ent_trampoline_map); pmap_destroy(env->ent_pic_symbol_map); @@ -328,7 +449,7 @@ 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_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) */ @@ -342,7 +463,7 @@ static void initialize_birg(be_irg_t *birg, ir_graph *irg, be_main_env_t *env) 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); @@ -389,13 +510,13 @@ ir_timer_t *t_ra_other; 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); @@ -428,14 +549,14 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) 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(); + 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(); @@ -487,7 +608,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) be_sched_init_phase(irg); /* reset the phi handler. */ - be_phi_handler_reset(&env); + be_phi_handler_reset(); stat_ev_ctx_push_fobj("bemain_irg", irg); @@ -506,7 +627,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) 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); @@ -538,7 +659,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) stat_ev_ctx_pop("bemain_phase"); /* reset the phi handler. */ - be_phi_handler_reset(&env); + be_phi_handler_reset(); be_do_stat_nodes(irg, "03 Prepare"); @@ -637,14 +758,14 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) //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); @@ -831,7 +952,7 @@ unsigned be_put_ignore_regs(const be_irg_t *birg, const arch_register_class_t *c bitset_clear_all(bs); assert(bitset_size(bs) == (unsigned)cls->n_regs); - arch_put_non_ignore_regs(&birg->main_env->arch_env, cls, bs); + arch_put_non_ignore_regs(birg->main_env->arch_env, cls, bs); bitset_flip_all(bs); be_abi_put_ignore_regs(birg->abi, cls, bs);