X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbemain.c;h=ab00dc2db72a8240f95c2b3e5b617a81059d438a;hb=93da909d12b7bec51aa36ee5f05966c331f90fb9;hp=8da5054134605180df3ccf61f9d8c7cc25594052;hpb=2896b2261b1f54df233305e72dfe4591ab966f6f;p=libfirm diff --git a/ir/be/bemain.c b/ir/be/bemain.c index 8da505413..ab00dc2db 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; +} + +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) @@ -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 +361,22 @@ 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(); +} + +/* 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; @@ -261,6 +401,7 @@ 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); + 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); @@ -328,7 +469,7 @@ 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); @@ -754,10 +895,10 @@ void be_main(FILE *file_handle, const char *cup_name) 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); }