X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fsparc%2Fbearch_sparc.c;h=9224f7242680b8291ddee8bad42bf3d8869ad644;hb=f8cc15664f571aa7ef89d6f6bc8d5bd2b8ca7d53;hp=b52f0de493fbb0565d9aa55607d047f84dccaf07;hpb=2413c90193696a4d31ea883954386dc32c0ae550;p=libfirm diff --git a/ir/be/sparc/bearch_sparc.c b/ir/be/sparc/bearch_sparc.c index b52f0de49..9224f7242 100644 --- a/ir/be/sparc/bearch_sparc.c +++ b/ir/be/sparc/bearch_sparc.c @@ -21,7 +21,6 @@ * @file * @brief The main sparc backend driver file. * @author Hannes Rapp, Matthias Braun - * @version $Id$ */ #include "config.h" @@ -37,9 +36,14 @@ #include "iroptimize.h" #include "irtools.h" #include "irdump.h" +#include "iropt_t.h" #include "lowering.h" #include "lower_dw.h" +#include "lower_alloc.h" +#include "lower_builtins.h" #include "lower_calls.h" +#include "lower_mode_b.h" +#include "lower_softfloat.h" #include "bitset.h" #include "debug.h" @@ -47,18 +51,18 @@ #include "error.h" #include "util.h" -#include "../bearch.h" -#include "../benode.h" -#include "../belower.h" -#include "../besched.h" +#include "bearch.h" +#include "benode.h" +#include "belower.h" +#include "besched.h" #include "be.h" -#include "../bemachine.h" -#include "../bemodule.h" -#include "../beirg.h" -#include "../bespillslots.h" -#include "../begnuas.h" -#include "../belistsched.h" -#include "../beflags.h" +#include "bemachine.h" +#include "bemodule.h" +#include "beirg.h" +#include "begnuas.h" +#include "belistsched.h" +#include "beflags.h" +#include "beutil.h" #include "bearch_sparc_t.h" @@ -66,6 +70,7 @@ #include "gen_sparc_regalloc_if.h" #include "sparc_transform.h" #include "sparc_emitter.h" +#include "sparc_cconv.h" DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;) @@ -114,11 +119,7 @@ static int sparc_get_sp_bias(const ir_node *node) if (get_irn_arity(node) == 3) panic("no support for _reg variant yet"); - /* Note we do not report the change of the SPARC_MIN_STACKSIZE - * size, since we have additional magic in the emitter which - * calculates that! */ - assert(attr->immediate_value <= -SPARC_MIN_STACKSIZE); - return attr->immediate_value + SPARC_MIN_STACKSIZE; + return -attr->immediate_value; } else if (is_sparc_RestoreZero(node)) { return SP_BIAS_RESET; } @@ -149,12 +150,12 @@ static void sparc_prepare_graph(ir_graph *irg) static bool sparc_modifies_flags(const ir_node *node) { - return arch_irn_get_flags(node) & sparc_arch_irn_flag_modifies_flags; + return arch_get_irn_flags(node) & sparc_arch_irn_flag_modifies_flags; } static bool sparc_modifies_fp_flags(const ir_node *node) { - return arch_irn_get_flags(node) & sparc_arch_irn_flag_modifies_fp_flags; + return arch_get_irn_flags(node) & sparc_arch_irn_flag_modifies_fp_flags; } static void sparc_before_ra(ir_graph *irg) @@ -166,138 +167,6 @@ static void sparc_before_ra(ir_graph *irg) NULL, sparc_modifies_fp_flags); } -/** - * transform reload node => load - */ -static void transform_Reload(ir_node *node) -{ - ir_node *block = get_nodes_block(node); - dbg_info *dbgi = get_irn_dbg_info(node); - ir_node *ptr = get_irn_n(node, n_be_Spill_frame); - ir_node *mem = get_irn_n(node, n_be_Reload_mem); - ir_mode *mode = get_irn_mode(node); - ir_entity *entity = be_get_frame_entity(node); - const arch_register_t *reg; - ir_node *proj; - ir_node *load; - - ir_node *sched_point = sched_prev(node); - - load = new_bd_sparc_Ld_imm(dbgi, block, ptr, mem, mode, entity, 0, true); - sched_add_after(sched_point, load); - sched_remove(node); - - proj = new_rd_Proj(dbgi, load, mode, pn_sparc_Ld_res); - - reg = arch_get_irn_register(node); - arch_set_irn_register(proj, reg); - - exchange(node, proj); -} - -/** - * transform spill node => store - */ -static void transform_Spill(ir_node *node) -{ - ir_node *block = get_nodes_block(node); - dbg_info *dbgi = get_irn_dbg_info(node); - ir_node *ptr = get_irn_n(node, n_be_Spill_frame); - ir_graph *irg = get_irn_irg(node); - ir_node *mem = get_irg_no_mem(irg); - ir_node *val = get_irn_n(node, n_be_Spill_val); - ir_mode *mode = get_irn_mode(val); - ir_entity *entity = be_get_frame_entity(node); - ir_node *sched_point; - ir_node *store; - - sched_point = sched_prev(node); - store = new_bd_sparc_St_imm(dbgi, block, val, ptr, mem, mode, entity, 0, true); - sched_remove(node); - sched_add_after(sched_point, store); - - exchange(node, store); -} - -/** - * walker to transform be_Spill and be_Reload nodes - */ -static void sparc_after_ra_walker(ir_node *block, void *data) -{ - ir_node *node, *prev; - (void) data; - - for (node = sched_last(block); !sched_is_begin(node); node = prev) { - prev = sched_prev(node); - - if (be_is_Reload(node)) { - transform_Reload(node); - } else if (be_is_Spill(node)) { - transform_Spill(node); - } - } -} - -static void sparc_collect_frame_entity_nodes(ir_node *node, void *data) -{ - be_fec_env_t *env = (be_fec_env_t*)data; - const ir_mode *mode; - int align; - ir_entity *entity; - const sparc_load_store_attr_t *attr; - - if (be_is_Reload(node) && be_get_frame_entity(node) == NULL) { - mode = get_irn_mode(node); - align = get_mode_size_bytes(mode); - be_node_needs_frame_entity(env, node, mode, align); - return; - } - - if (!is_sparc_Ld(node) && !is_sparc_Ldf(node)) - return; - - attr = get_sparc_load_store_attr_const(node); - entity = attr->base.immediate_value_entity; - mode = attr->load_store_mode; - if (entity != NULL) - return; - if (!attr->is_frame_entity) - return; - if (arch_irn_get_flags(node) & sparc_arch_irn_flag_needs_64bit_spillslot) - mode = mode_Lu; - align = get_mode_size_bytes(mode); - be_node_needs_frame_entity(env, node, mode, align); -} - -static void sparc_set_frame_entity(ir_node *node, ir_entity *entity) -{ - if (is_be_node(node)) { - be_node_set_frame_entity(node, entity); - } else { - /* we only say be_node_needs_frame_entity on nodes with load_store - * attributes, so this should be fine */ - sparc_load_store_attr_t *attr = get_sparc_load_store_attr(node); - assert(attr->is_frame_entity); - assert(attr->base.immediate_value_entity == NULL); - attr->base.immediate_value_entity = entity; - } -} - -static void sparc_after_ra(ir_graph *irg) -{ - be_stack_layout_t *stack_layout = be_get_irg_stack_layout(irg); - bool at_begin = stack_layout->sp_relative ? true : false; - be_fec_env_t *fec_env = be_new_frame_entity_coalescer(irg); - - irg_walk_graph(irg, NULL, sparc_collect_frame_entity_nodes, fec_env); - be_assign_entities(fec_env, sparc_set_frame_entity, at_begin); - be_free_frame_entity_coalescer(fec_env); - - irg_block_walk_graph(irg, NULL, sparc_after_ra_walker, NULL); - - sparc_introduce_prolog_epilog(irg); -} - static void sparc_init_graph(ir_graph *irg) { (void) irg; @@ -321,7 +190,8 @@ static sparc_isa_t sparc_isa_template = { 5, /* costs for a reload instruction */ true, /* custom abi handling */ }, - NULL, /* constants */ + NULL, /* constants */ + SPARC_FPU_ARCH_FPU, /* FPU architecture */ }; /** @@ -481,17 +351,23 @@ static void sparc_handle_intrinsics(void) /** * Initializes the backend ISA */ -static arch_env_t *sparc_init(FILE *outfile) +static arch_env_t *sparc_init(const be_main_env_t *env) { sparc_isa_t *isa = XMALLOC(sparc_isa_t); *isa = sparc_isa_template; isa->constants = pmap_create(); - be_emit_init(outfile); + be_gas_elf_type_char = '#'; + be_gas_object_file_format = OBJECT_FILE_FORMAT_ELF; + be_gas_elf_variant = ELF_VARIANT_SPARC; sparc_register_init(); sparc_create_opcodes(&sparc_irn_ops); sparc_handle_intrinsics(); + sparc_cconv_init(); + + be_emit_init(env->file_handle); + be_gas_begin_compilation_unit(env); return &isa->base; } @@ -504,7 +380,7 @@ static void sparc_done(void *self) sparc_isa_t *isa = (sparc_isa_t*)self; /* emit now all global declarations */ - be_gas_emit_decls(isa->base.main_env); + be_gas_end_compilation_unit(isa->base.main_env); pmap_destroy(isa->constants); be_emit_exit(); @@ -535,45 +411,38 @@ static int sparc_get_reg_class_alignment(const arch_register_class_t *cls) return get_mode_size_bytes(mode); } -static ir_node *sparc_create_set(ir_node *cond) -{ - return ir_create_cond_set(cond, mode_Iu); -} - static void sparc_lower_for_target(void) { size_t i, n_irgs = get_irp_n_irgs(); - lower_mode_b_config_t lower_mode_b_config = { - mode_Iu, - sparc_create_set, - 0, - }; + lower_calls_with_compounds(LF_RETURN_HIDDEN); + for (i = 0; i < n_irgs; ++i) { + ir_graph *irg = get_irp_irg(i); + /* Turn all small CopyBs into loads/stores and all bigger CopyBs into + * memcpy calls. */ + lower_CopyB(irg, 31, 32, false); + } + + if (sparc_isa_template.fpu_arch == SPARC_FPU_ARCH_SOFTFLOAT) + lower_floating_point(); + + lower_builtins(0, NULL); + sparc_lower_64bit(); for (i = 0; i < n_irgs; ++i) { ir_graph *irg = get_irp_irg(i); - ir_lower_mode_b(irg, &lower_mode_b_config); + ir_lower_mode_b(irg, mode_Iu); lower_switch(irg, 4, 256, false); + lower_alloc(irg, SPARC_STACK_ALIGNMENT, false, SPARC_MIN_STACKSIZE); } } static int sparc_is_mux_allowed(ir_node *sel, ir_node *mux_false, ir_node *mux_true) { - ir_graph *irg = get_irn_irg(sel); - ir_mode *mode = get_irn_mode(mux_true); - - if (get_irg_phase_state(irg) == phase_low) - return false; - - if (!mode_is_int(mode) && !mode_is_reference(mode) && mode != mode_b) - return false; - if (is_Const(mux_true) && is_Const_one(mux_true) && - is_Const(mux_false) && is_Const_null(mux_false)) - return true; - return false; + return ir_is_optimizable_mux(sel, mux_false, mux_true); } /** @@ -610,23 +479,26 @@ static const backend_params *sparc_get_backend_params(void) }; ir_mode *mode_long_long - = new_ir_mode("long long", irms_int_number, 64, 1, irma_twos_complement, - 64); + = new_int_mode("long long", irma_twos_complement, 64, 1, 64); ir_type *type_long_long = new_type_primitive(mode_long_long); ir_mode *mode_unsigned_long_long - = new_ir_mode("unsigned long long", irms_int_number, 64, 0, - irma_twos_complement, 64); + = new_int_mode("unsigned long long", irma_twos_complement, 64, 0, 64); ir_type *type_unsigned_long_long = new_type_primitive(mode_unsigned_long_long); - ir_mode *mode_long_double - = new_ir_mode("long double", irms_float_number, 128, 1, - irma_ieee754, 0); - ir_type *type_long_double = new_type_primitive(mode_long_double); - set_type_alignment_bytes(type_long_double, 8); - p.type_long_double = type_long_double; p.type_long_long = type_long_long; p.type_unsigned_long_long = type_unsigned_long_long; + + if (sparc_isa_template.fpu_arch == SPARC_FPU_ARCH_SOFTFLOAT) { + p.mode_float_arithmetic = NULL; + p.type_long_double = NULL; + } else { + ir_type *type_long_double = new_type_primitive(mode_Q); + + set_type_alignment_bytes(type_long_double, 8); + set_type_size_bytes(type_long_double, 16); + p.type_long_double = type_long_double; + } return &p; } @@ -650,6 +522,64 @@ static int sparc_is_valid_clobber(const char *clobber) return 0; } +/* fpu set architectures. */ +static const lc_opt_enum_int_items_t sparc_fpu_items[] = { + { "fpu", SPARC_FPU_ARCH_FPU }, + { "softfloat", SPARC_FPU_ARCH_SOFTFLOAT }, + { NULL, 0 } +}; + +static lc_opt_enum_int_var_t arch_fpu_var = { + &sparc_isa_template.fpu_arch, sparc_fpu_items +}; + +static const lc_opt_table_entry_t sparc_options[] = { + LC_OPT_ENT_ENUM_INT("fpunit", "select the floating point unit", &arch_fpu_var), + LC_OPT_LAST +}; + +static ir_node *sparc_new_spill(ir_node *value, ir_node *after) +{ + ir_node *block = get_block(after); + ir_graph *irg = get_irn_irg(value); + ir_node *frame = get_irg_frame(irg); + ir_node *mem = get_irg_no_mem(irg); + ir_mode *mode = get_irn_mode(value); + ir_node *store; + + if (mode_is_float(mode)) { + store = create_stf(NULL, block, value, frame, mem, mode, NULL, 0, true); + } else { + store = new_bd_sparc_St_imm(NULL, block, value, frame, mem, mode, NULL, + 0, true); + } + sched_add_after(after, store); + return store; +} + +static ir_node *sparc_new_reload(ir_node *value, ir_node *spill, + ir_node *before) +{ + ir_node *block = get_block(before); + ir_graph *irg = get_irn_irg(value); + ir_node *frame = get_irg_frame(irg); + ir_mode *mode = get_irn_mode(value); + ir_node *load; + ir_node *res; + + if (mode_is_float(mode)) { + load = create_ldf(NULL, block, frame, spill, mode, NULL, 0, true); + } else { + load = new_bd_sparc_Ld_imm(NULL, block, frame, spill, mode, NULL, 0, + true); + } + sched_add_before(before, load); + assert((long)pn_sparc_Ld_res == (long)pn_sparc_Ldf_res); + res = new_r_Proj(load, mode, pn_sparc_Ld_res); + + return res; +} + const arch_isa_if_t sparc_isa_if = { sparc_init, sparc_lower_for_target, @@ -669,15 +599,21 @@ const arch_isa_if_t sparc_isa_if = { NULL, /* before_abi */ sparc_prepare_graph, sparc_before_ra, - sparc_after_ra, sparc_finish, sparc_emit_routine, NULL, /* register_saved_by */ + sparc_new_spill, + sparc_new_reload }; BE_REGISTER_MODULE_CONSTRUCTOR(be_init_arch_sparc) void be_init_arch_sparc(void) { + lc_opt_entry_t *be_grp = lc_opt_get_grp(firm_opt_get_root(), "be"); + lc_opt_entry_t *sparc_grp = lc_opt_get_grp(be_grp, "sparc"); + + lc_opt_add_table(sparc_grp, sparc_options); + be_register_isa_if("sparc", &sparc_isa_if); FIRM_DBG_REGISTER(dbg, "firm.be.sparc.cg"); sparc_init_transform();