X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fia32%2Fia32_emitter.c;h=e69fd7fda099a2f68e808f27f55c12de7670ee13;hb=9ab2567879f20a09bc1bcc48561929acf4dc29e0;hp=6bf0f2593b93dbf301df6edec2a5562f720cbd74;hpb=52b70cbde58561f9d407a96990648d62022b9920;p=libfirm diff --git a/ir/be/ia32/ia32_emitter.c b/ir/be/ia32/ia32_emitter.c index 6bf0f2593..e69fd7fda 100644 --- a/ir/be/ia32/ia32_emitter.c +++ b/ir/be/ia32/ia32_emitter.c @@ -12,8 +12,10 @@ #include "irprintf.h" #include "irop_t.h" #include "irargs_t.h" +#include "irprog_t.h" #include "../besched.h" +#include "../benode_t.h" #include "ia32_emitter.h" #include "gen_ia32_emitter.h" @@ -21,57 +23,157 @@ #include "ia32_new_nodes.h" #include "ia32_map_regs.h" +#ifdef obstack_chunk_alloc +# undef obstack_chunk_alloc +# define obstack_chunk_alloc xmalloc +#else +# define obstack_chunk_alloc xmalloc +# define obstack_chunk_free free +#endif + +extern int obstack_printf(struct obstack *obst, char *fmt, ...); + #define SNPRINTF_BUF_LEN 128 static const arch_env_t *arch_env = NULL; +/** + * Emits registers and/or address mode of a binary operation. + */ +char *ia32_emit_binop(const ir_node *n) { + static char *buf = NULL; -/************************************************************* - * _ _ __ _ _ - * (_) | | / _| | | | | - * _ __ _ __ _ _ __ | |_| |_ | |__ ___| |_ __ ___ _ __ - * | '_ \| '__| | '_ \| __| _| | '_ \ / _ \ | '_ \ / _ \ '__| - * | |_) | | | | | | | |_| | | | | | __/ | |_) | __/ | - * | .__/|_| |_|_| |_|\__|_| |_| |_|\___|_| .__/ \___|_| - * | | | | - * |_| |_| - *************************************************************/ + if (! buf) { + buf = xcalloc(1, SNPRINTF_BUF_LEN); + } + else { + memset(buf, 0, SNPRINTF_BUF_LEN); + } + + switch(get_ia32_op_type(n)) { + case ia32_Normal: + if (get_ia32_cnst(n)) { + lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%1D, %s", n, get_ia32_cnst(n)); + } + else { + lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%1D, %4S", n, n); + } + break; + case ia32_AddrModeS: + lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%1D, %s", n, ia32_emit_am(n)); + break; + case ia32_AddrModeD: + if (get_ia32_cnst(n)) { + lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%s, %s", ia32_emit_am(n), get_ia32_cnst(n)); + } + else { + if (is_ia32_St(n)) { + lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%s, %3S", ia32_emit_am(n), n); + } + else { + lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%s, %4S", ia32_emit_am(n), n); + } + } + break; + default: + assert(0 && "unsupported op type"); + } + + return buf; +} /** - * Return node's tarval as string. + * Emits registers and/or address mode of a unary operation. */ -const char *node_const_to_str(ir_node *n) { - char *buf; - tarval *tv = get_ia32_Immop_tarval(n); +char *ia32_emit_unop(const ir_node *n) { + static char *buf = NULL; - if (tv) { - buf = xmalloc(SNPRINTF_BUF_LEN); - tarval_snprintf(buf, SNPRINTF_BUF_LEN, tv); - return buf; + if (! buf) { + buf = xcalloc(1, SNPRINTF_BUF_LEN); } - else if (get_ia32_old_ir(n)) { - return get_sc_name(get_ia32_old_ir(n)); + else { + memset(buf, 0, SNPRINTF_BUF_LEN); } - else - return "0"; + + switch(get_ia32_op_type(n)) { + case ia32_Normal: + lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%1D", n); + break; + case ia32_am_Dest: + snprintf(buf, SNPRINTF_BUF_LEN, ia32_emit_am(n)); + break; + default: + assert(0 && "unsupported op type"); + } + + return buf; } /** - * Returns node's offset as string. + * Emits adressmode. */ -char *node_offset_to_str(ir_node *n) { - char *buf; - tarval *tv = get_ia32_am_offs(n); +char *ia32_emit_am(const ir_node *n) { + ia32_am_flavour_t am_flav = get_ia32_am_flavour(n); + int had_output = 0; + char *s; + int size; + static struct obstack *obst = NULL; + + if (! obst) { + obst = xcalloc(1, sizeof(*obst)); + } + else { + obstack_free(obst, NULL); + } - if (tv) { - buf = xmalloc(SNPRINTF_BUF_LEN); - tarval_snprintf(buf, SNPRINTF_BUF_LEN, tv); - return buf; + /* obstack_free with NULL results in an uninitialized obstack */ + obstack_init(obst); + + obstack_printf(obst, "["); + + if (am_flav & ia32_B) { + lc_eoprintf(ia32_get_arg_env(), obst, "%1S", n); + had_output = 1; } - else - return ""; + + if (am_flav & ia32_I) { + if (had_output) { + obstack_printf(obst, "+"); + } + + lc_eoprintf(ia32_get_arg_env(), obst, "%2S", n); + + if (am_flav & ia32_S) { + obstack_printf(obst, "*%d", 1 << get_ia32_am_scale(n)); + } + + had_output = 1; + } + + if (am_flav & ia32_O) { + obstack_printf(obst, get_ia32_am_offs(n)); + } + + obstack_printf(obst, "] "); + + size = obstack_object_size(obst); + s = obstack_finish(obst); + s[size - 1] = '\0'; + + return s; } +/************************************************************* + * _ _ __ _ _ + * (_) | | / _| | | | | + * _ __ _ __ _ _ __ | |_| |_ | |__ ___| |_ __ ___ _ __ + * | '_ \| '__| | '_ \| __| _| | '_ \ / _ \ | '_ \ / _ \ '__| + * | |_) | | | | | | | |_| | | | | | __/ | |_) | __/ | + * | .__/|_| |_|_| |_|\__|_| |_| |_|\___|_| .__/ \___|_| + * | | | | + * |_| |_| + *************************************************************/ + /* We always pass the ir_node which is a pointer. */ static int ia32_get_arg_type(const lc_arg_occ_t *occ) { return lc_arg_type_ptr; @@ -81,7 +183,7 @@ static int ia32_get_arg_type(const lc_arg_occ_t *occ) { /** * Returns the register at in position pos. */ -static const arch_register_t *get_in_reg(ir_node *irn, int pos) { +static const arch_register_t *get_in_reg(const ir_node *irn, int pos) { ir_node *op; const arch_register_t *reg = NULL; @@ -100,7 +202,7 @@ static const arch_register_t *get_in_reg(ir_node *irn, int pos) { /** * Returns the register at out position pos. */ -static const arch_register_t *get_out_reg(ir_node *irn, int pos) { +static const arch_register_t *get_out_reg(const ir_node *irn, int pos) { ir_node *proj; const arch_register_t *reg = NULL; @@ -150,16 +252,26 @@ int get_ia32_reg_nr(ir_node *irn, int pos, int in_out) { return arch_register_get_index(reg); } +enum io_direction { + IN_REG, + OUT_REG +}; + /** * Returns the name of the in register at position pos. */ -const char *get_ia32_reg_name(ir_node *irn, int pos, int in_out) { +static const char *get_ia32_reg_name(ir_node *irn, int pos, enum io_direction in_out) { const arch_register_t *reg; - if (in_out == 1) { + if (in_out == IN_REG) { reg = get_in_reg(irn, pos); } else { + /* destination address mode nodes don't have outputs */ + if (get_ia32_op_type(irn) == ia32_AddrModeD) { + return "MEM"; + } + reg = get_out_reg(irn, pos); } @@ -179,19 +291,13 @@ static int ia32_get_reg_name(lc_appendable_t *app, if (!X) return lc_arg_append(app, occ, "(null)", 6); - if (occ->conversion == 'S') { - buf = get_ia32_reg_name(X, nr, 1); - } - else { /* 'D' */ - buf = get_ia32_reg_name(X, nr, 0); - } + buf = get_ia32_reg_name(X, nr, occ->conversion == 'S' ? IN_REG : OUT_REG); - lc_appendable_chadd(app, '%'); return lc_arg_append(app, occ, buf, strlen(buf)); } /** - * Returns the tarval or offset of an ia32 as a string. + * Returns the tarval, offset or scale of an ia32 as a string. */ static int ia32_const_to_str(lc_appendable_t *app, const lc_arg_occ_t *occ, const lc_arg_value_t *arg) @@ -203,13 +309,13 @@ static int ia32_const_to_str(lc_appendable_t *app, return lc_arg_append(app, occ, "(null)", 6); if (occ->conversion == 'C') { - buf = node_const_to_str(X); + buf = get_ia32_cnst(X); } else { /* 'O' */ - buf = node_offset_to_str(X); + buf = get_ia32_am_offs(X); } - return lc_arg_append(app, occ, buf, strlen(buf)); + return buf ? lc_arg_append(app, occ, buf, strlen(buf)) : 0; } /** @@ -223,10 +329,7 @@ static int ia32_get_mode_suffix(lc_appendable_t *app, if (!X) return lc_arg_append(app, occ, "(null)", 6); - if (get_mode_size_bits(get_irn_mode(X)) == 32) - return lc_appendable_chadd(app, 's'); - else - return lc_appendable_chadd(app, 'd'); + return lc_appendable_chadd(app, get_mode_size_bits(get_irn_mode(X)) == 32 ? 's' : 'd'); } /** @@ -243,7 +346,6 @@ const lc_arg_env_t *ia32_get_arg_env(void) { if(env == NULL) { /* extend the firm printer */ env = firm_get_arg_env(); - //lc_arg_new_env(); lc_arg_register(env, "ia32:sreg", 'S', &ia32_reg_handler); lc_arg_register(env, "ia32:dreg", 'D', &ia32_reg_handler); @@ -255,27 +357,11 @@ const lc_arg_env_t *ia32_get_arg_env(void) { return env; } -/** - * For 2-address code we need to make sure the first src reg is equal to dest reg. - */ -void equalize_dest_src(FILE *F, ir_node *n) { - if (get_ia32_reg_nr(n, 0, 1) != get_ia32_reg_nr(n, 0, 0)) { - if (get_irn_arity(n) > 1 && get_ia32_reg_nr(n, 1, 1) == get_ia32_reg_nr(n, 0, 0)) { - if (! is_op_commutative(get_irn_op(n))) { - /* we only need to exchange for non-commutative ops */ - lc_efprintf(ia32_get_arg_env(), F, "\txchg %1S, %2S\t\t\t/* xchg src1 <-> src2 for 2 address code */\n", n, n); - } - } - else { - lc_efprintf(ia32_get_arg_env(), F, "\tmovl %1S, %1D\t\t\t/* src -> dest for 2 address code */\n", n, n); - } - } -} /* * Add a number to a prefix. This number will not be used a second time. */ -char *get_unique_label(char *buf, size_t buflen, const char *prefix) { +static char *get_unique_label(char *buf, size_t buflen, const char *prefix) { static unsigned long id = 0; snprintf(buf, buflen, "%s%lu", prefix, ++id); return buf; @@ -368,7 +454,7 @@ static char *get_cfop_target(const ir_node *irn, char *buf) { /** * Emits the jump sequence for a conditional jump (cmp + jmp_true + jmp_false) */ -static void finish_CondJmp(FILE *F, ir_node *irn) { +static void finish_CondJmp(FILE *F, const ir_node *irn) { const ir_node *proj; const ir_edge_t *edge; char buf[SNPRINTF_BUF_LEN]; @@ -399,7 +485,7 @@ static void finish_CondJmp(FILE *F, ir_node *irn) { /** * Emits code for conditional jump with two variables. */ -static void emit_ia32_CondJmp(ir_node *irn, emit_env_t *env) { +static void emit_ia32_CondJmp(const ir_node *irn, emit_env_t *env) { FILE *F = env->out; lc_efprintf(ia32_get_arg_env(), F, "\tcmp %2S, %1S\t\t\t/* CondJmp(%+F, %+F) */\n", irn, irn, @@ -410,7 +496,7 @@ static void emit_ia32_CondJmp(ir_node *irn, emit_env_t *env) { /** * Emits code for conditional jump with immediate. */ -void emit_ia32_CondJmp_i(ir_node *irn, emit_env_t *env) { +void emit_ia32_CondJmp_i(const ir_node *irn, emit_env_t *env) { FILE *F = env->out; lc_efprintf(ia32_get_arg_env(), F, "\tcmp %C, %1S\t\t\t/* CondJmp_i(%+F) */\n", irn, irn, get_irn_n(irn, 0)); @@ -526,12 +612,11 @@ void emit_ia32_SwitchJmp(const ir_node *irn, emit_env_t *emit_env) { if (do_jmp_tbl) { /* emit the table */ if (tbl.min_value != 0) { - fprintf(F, "\tcmpl %lu, -%d", interval, tbl.min_value); - lc_efprintf(env, F, "(%1S)\t\t/* first switch value is not 0 */\n", irn); + lc_efprintf(env, F, "\tcmpl %lu, -%d(%1S)\t\t/* first switch value is not 0 */\n", + interval, tbl.min_value, irn); } else { - fprintf(F, "\tcmpl %lu, ", interval); - lc_efprintf(env, F, "%1S\t\t\t/* compare for switch */\n", irn); + lc_efprintf(env, F, "\tcmpl %lu, %1S\t\t\t/* compare for switch */\n", interval, irn); } fprintf(F, "\tja %s\t\t\t/* default jump if out of range */\n", get_cfop_target(tbl.defProj, buf)); @@ -539,7 +624,6 @@ void emit_ia32_SwitchJmp(const ir_node *irn, emit_env_t *emit_env) { if (tbl.num_branches > 1) { /* create table */ - //fprintf(F, "\tjmp *%s", tbl.label); lc_efprintf(env, F, "\tjmp *%s(,%1S,4)\t\t/* get jump table entry as target */\n", tbl.label, irn); fprintf(F, "\t.section\t.rodata\t\t/* start jump table */\n"); @@ -565,9 +649,7 @@ void emit_ia32_SwitchJmp(const ir_node *irn, emit_env_t *emit_env) { } else { // no jump table for (i = 0; i < tbl.num_branches; ++i) { - fprintf(F, "\tcmpl %d, ", tbl.branches[i].value); - lc_efprintf(env, F, "%1S", irn); - fprintf(F, "\t\t\t/* case %d */\n", tbl.branches[i].value); + lc_efprintf(env, F, "\tcmpl %d, %1S\t\t\t/* case %d */\n", tbl.branches[i].value, irn, i); fprintf(F, "\tje %s\n", get_cfop_target(tbl.branches[i].target, buf)); } @@ -583,7 +665,7 @@ void emit_ia32_SwitchJmp(const ir_node *irn, emit_env_t *emit_env) { /** * Emits code for a unconditional jump. */ -void emit_Jmp(ir_node *irn, emit_env_t *env) { +void emit_Jmp(const ir_node *irn, emit_env_t *env) { FILE *F = env->out; char buf[SNPRINTF_BUF_LEN]; @@ -606,7 +688,7 @@ void emit_Jmp(ir_node *irn, emit_env_t *env) { /** * Emits code for a proj -> node */ -void emit_Proj(ir_node *irn, emit_env_t *env) { +void emit_Proj(const ir_node *irn, emit_env_t *env) { ir_node *pred = get_Proj_pred(irn); if (get_irn_op(pred) == op_Start) { @@ -620,55 +702,98 @@ void emit_Proj(ir_node *irn, emit_env_t *env) { } } -/******************** - * _____ _ _ - * / ____| | | | - * | | __ _| | | - * | | / _` | | | - * | |___| (_| | | | - * \_____\__,_|_|_| - * - ********************/ +/********************************** + * _____ ____ + * / ____| | _ \ + * | | ___ _ __ _ _| |_) | + * | | / _ \| '_ \| | | | _ < + * | |___| (_) | |_) | |_| | |_) | + * \_____\___/| .__/ \__, |____/ + * | | __/ | + * |_| |___/ + **********************************/ + +static void emit_CopyB_prolog(FILE *F, int rem, int size) { + fprintf(F, "\t/* memcopy %d bytes*/\n", size); + fprintf(F, "\tcld\t\t\t\t/* copy direction forward*/\n"); + + switch(rem) { + case 1: + fprintf(F, "\tmovsb\t\t\t\t/* memcopy remainder 1 */\n"); + break; + case 2: + fprintf(F, "\tmovsw\t\t\t\t/* memcopy remainder 2 */\n"); + break; + case 3: + fprintf(F, "\tmovsb\t\t\t\t/* memcopy remainder 3 */\n"); + fprintf(F, "\tmovsw\t\t\t\t/* memcopy remainder 3 */\n"); + break; + } +} -void emit_ia32_Call(ir_node *irn, emit_env_t *emit_env) { - int i, n = get_irn_arity(irn); - int args_size = 0; - ir_node *sync = get_irn_n(irn, n - 1); - FILE *F = emit_env->out; - const lc_arg_env_t *env = ia32_get_arg_env(); +void emit_ia32_CopyB(const ir_node *irn, emit_env_t *emit_env) { + FILE *F = emit_env->out; + tarval *tv = get_ia32_Immop_tarval(irn); + int rem = get_tarval_long(tv); + int size = get_tarval_long(get_ia32_Immop_tarval(get_irn_n(irn, 2))); - if (get_irn_op(sync) == op_Sync) { - /* We have stack arguments */ - ir_node **args = get_Sync_preds_arr(sync); + emit_CopyB_prolog(F, rem, size); - for (i = 0; i < get_Sync_n_preds(sync); i++) { - lc_efprintf(env, F, "\tpush %1D\t\t\t\t/* push %+F on stack */\n", args[i], args[i]); + fprintf(F, "\trep movsd\t\t\t\t/* memcopy */\n"); +} - if (mode_is_int(get_irn_mode(args[i]))) { - args_size += 4; - } - else { - args_size += 16; - } - } +void emit_ia32_CopyB_i(const ir_node *irn, emit_env_t *emit_env) { + tarval *tv = get_ia32_Immop_tarval(irn); + int size = get_tarval_long(tv); + FILE *F = emit_env->out; + + emit_CopyB_prolog(F, size & 0x3, size); + + size >>= 2; + while (size--) { + fprintf(F, "\tmovsd\t\t\t\t/* memcopy unrolled */\n"); } +} - lc_efprintf(env, F, "\tcall %C\t\t\t/* %+F */\n", irn, irn); - if (get_irn_op(sync) == op_Sync) { - /* We had stack arguments: clear the stack */ - fprintf(F, "\tadd %d, ", args_size); - if (emit_env->cg->has_alloca) { - fprintf(F, "%ebp"); - } - else { - fprintf(F, "%esp"); - } - fprintf(F, "\t\t\t\t/* clear stack after call */\n"); + +/******************************************* + * _ _ + * | | | | + * | |__ ___ _ __ ___ __| | ___ ___ + * | '_ \ / _ \ '_ \ / _ \ / _` |/ _ \/ __| + * | |_) | __/ | | | (_) | (_| | __/\__ \ + * |_.__/ \___|_| |_|\___/ \__,_|\___||___/ + * + *******************************************/ + +void emit_be_Call(const ir_node *irn, emit_env_t *emit_env) { + FILE *F = emit_env->out; + + lc_efprintf(ia32_get_arg_env(), F, "\tcall %3S\t\t\t/* %+F(%+F) (be_Call) */\n", irn, irn, get_irn_n(irn, 2)); +} + +void emit_be_IncSP(const ir_node *irn, emit_env_t *emit_env) { + FILE *F = emit_env->out; + unsigned offs = be_get_IncSP_offset(irn); + be_stack_dir_t dir = be_get_IncSP_direction(irn); + + if (offs) { + lc_efprintf(ia32_get_arg_env(), F, "\tadd %1S,%s%u\t\t\t/* %+F (IncSP) */\n", irn, + (dir == be_stack_dir_along) ? " -" : " ", offs, irn); } + else { + fprintf(F, "\t\t\t\t\t/* omitted IncSP with 0 */\n"); + } +} + +void emit_be_AddSP(const ir_node *irn, emit_env_t *emit_env) { + FILE *F = emit_env->out; + lc_efprintf(ia32_get_arg_env(), F, "\tadd %1D, %1S\t\t\t/* %+F (AddSP) */\n", irn, irn, irn); } + /*********************************************************************************** * _ __ _ * (_) / _| | | @@ -680,99 +805,67 @@ void emit_ia32_Call(ir_node *irn, emit_env_t *emit_env) { ***********************************************************************************/ /** - * Emits code for a node. + * Enters the emitter functions for handled nodes into the generic + * pointer of an opcode. */ -void ia32_emit_node(ir_node *irn, void *env) { - emit_env_t *emit_env = env; - firm_dbg_module_t *mod = emit_env->mod; - FILE *F = emit_env->out; - - DBG((mod, LEVEL_1, "emitting code for %+F\n", irn)); - -#define IA32_EMIT(a) if (is_ia32_##a(irn)) { emit_ia32_##a(irn, emit_env); return; } -#define EMIT(a) if (get_irn_opcode(irn) == iro_##a) { emit_##a(irn, emit_env); return; } - - /* generated int emitter functions */ - IA32_EMIT(Copy); - IA32_EMIT(Perm); - - IA32_EMIT(Const); - - IA32_EMIT(Add); - IA32_EMIT(Add_i); - IA32_EMIT(Sub); - IA32_EMIT(Sub_i); - IA32_EMIT(Minus); - IA32_EMIT(Inc); - IA32_EMIT(Dec); - - IA32_EMIT(Max); - IA32_EMIT(Min); - - IA32_EMIT(And); - IA32_EMIT(And_i); - IA32_EMIT(Or); - IA32_EMIT(Or_i); - IA32_EMIT(Eor); - IA32_EMIT(Eor_i); - IA32_EMIT(Not); - - IA32_EMIT(Shl); - IA32_EMIT(Shl_i); - IA32_EMIT(Shr); - IA32_EMIT(Shr_i); - IA32_EMIT(Shrs); - IA32_EMIT(Shrs_i); - IA32_EMIT(RotL); - IA32_EMIT(RotL_i); - IA32_EMIT(RotR); - - IA32_EMIT(Lea); - IA32_EMIT(Lea_i); - - IA32_EMIT(Mul); - IA32_EMIT(Mul_i); - - IA32_EMIT(Cltd); - IA32_EMIT(DivMod); +static void ia32_register_emitters(void) { - IA32_EMIT(Store); - IA32_EMIT(Load); +#define IA32_EMIT(a) op_ia32_##a->ops.generic = (op_func)emit_ia32_##a +#define EMIT(a) op_##a->ops.generic = (op_func)emit_##a +#define BE_EMIT(a) op_be_##a->ops.generic = (op_func)emit_be_##a - /* generated floating point emitter */ - IA32_EMIT(fConst); + /* first clear the generic function pointer for all ops */ + clear_irp_opcodes_generic_func(); - IA32_EMIT(fAdd); - IA32_EMIT(fSub); - IA32_EMIT(fMinus); + /* register all emitter functions defined in spec */ + ia32_register_spec_emitters(); - IA32_EMIT(fMul); - IA32_EMIT(fDiv); - - IA32_EMIT(fMin); - IA32_EMIT(fMax); - - IA32_EMIT(fLoad); - IA32_EMIT(fStore); - - /* other emitter functions */ + /* other ia32 emitter functions */ IA32_EMIT(CondJmp); - IA32_EMIT(CondJmp_i); IA32_EMIT(SwitchJmp); - IA32_EMIT(Call); + IA32_EMIT(CopyB); + IA32_EMIT(CopyB_i); + /* benode emitter */ + BE_EMIT(Call); + BE_EMIT(IncSP); + // BE_EMIT(AddSP); + + /* firm emitter */ EMIT(Jmp); EMIT(Proj); - ir_fprintf(F, "\t\t\t\t\t/* %+F */\n", irn); +#undef IA32_EMIT +#undef BE_EMIT +#undef EMIT +} + +/** + * Emits code for a node. + */ +static void ia32_emit_node(const ir_node *irn, void *env) { + emit_env_t *emit_env = env; + firm_dbg_module_t *mod = emit_env->mod; + FILE *F = emit_env->out; + ir_op *op = get_irn_op(irn); + + DBG((mod, LEVEL_1, "emitting code for %+F\n", irn)); + + if (op->ops.generic) { + void (*emit)(const ir_node *, void *) = (void (*)(const ir_node *, void *))op->ops.generic; + (*emit)(irn, env); + } + else { + ir_fprintf(F, "\t\t\t\t\t/* %+F */\n", irn); + } } /** * Walks over the nodes in a block connected by scheduling edges * and emits code for each node. */ -void ia32_gen_block(ir_node *block, void *env) { - ir_node *irn; +static void ia32_gen_block(ir_node *block, void *env) { + const ir_node *irn; if (! is_Block(block)) return; @@ -787,7 +880,7 @@ void ia32_gen_block(ir_node *block, void *env) { /** * Emits code for function start. */ -void ia32_emit_start(FILE *F, ir_graph *irg) { +static void ia32_emit_func_prolog(FILE *F, ir_graph *irg) { const char *irg_name = get_entity_name(get_irg_entity(irg)); fprintf(F, "\t.text\n"); @@ -799,7 +892,7 @@ void ia32_emit_start(FILE *F, ir_graph *irg) { /** * Emits code for function end */ -void ia32_emit_end(FILE *F, ir_graph *irg) { +static void ia32_emit_func_epilog(FILE *F, ir_graph *irg) { const char *irg_name = get_entity_name(get_irg_entity(irg)); fprintf(F, "\tret\n"); @@ -810,7 +903,7 @@ void ia32_emit_end(FILE *F, ir_graph *irg) { * Sets labels for control flow nodes (jump target) * TODO: Jump optimization */ -void ia32_gen_labels(ir_node *block, void *env) { +static void ia32_gen_labels(ir_node *block, void *env) { ir_node *pred; int n = get_Block_n_cfgpreds(block); @@ -821,7 +914,7 @@ void ia32_gen_labels(ir_node *block, void *env) { } /** - * Main driver + * Main driver. Emits the code for one routine. */ void ia32_gen_routine(FILE *F, ir_graph *irg, const ia32_code_gen_t *cg) { emit_env_t emit_env; @@ -831,8 +924,13 @@ void ia32_gen_routine(FILE *F, ir_graph *irg, const ia32_code_gen_t *cg) { emit_env.arch_env = cg->arch_env; emit_env.cg = cg; - ia32_emit_start(F, irg); + /* set the global arch_env (needed by print hooks) */ + arch_env = cg->arch_env; + + ia32_register_emitters(); + + ia32_emit_func_prolog(F, irg); irg_block_walk_graph(irg, ia32_gen_labels, NULL, &emit_env); irg_walk_blkwise_graph(irg, NULL, ia32_gen_block, &emit_env); - ia32_emit_end(F, irg); + ia32_emit_func_epilog(F, irg); }