+#define SILENCER
/* arm emitter */
/* $Id$ */
static const arch_env_t *arch_env = NULL;
+/**
+ * Switch to a new section
+ */
+void arm_switch_section(FILE *f, sections sec) {
+ static sections curr_sec = NO_SECTION;
+
+ if (curr_sec == sec)
+ return;
+
+ curr_sec = sec;
+ switch (sec) {
+
+ case NO_SECTION:
+ break;
+
+ case SECTION_TEXT:
+ fprintf(f, "\t.text\n");
+ break;
+
+ case SECTION_DATA:
+ fprintf(f, "\t.data\n");
+ break;
+ }
+}
/*************************************************************
* _ _ __ _ _
* |_| |_|
*************************************************************/
+/**
+ * Returns non-zero if a mode has a Immediate attribute.
+ */
int is_immediate_node(ir_node *irn) {
- if (is_arm_Add_i(irn) || is_arm_Sub_i(irn))
- return 1;
- if (is_arm_Shr_i(irn) || is_arm_Shr_i(irn) || is_arm_Shl_i(irn))
- return 1;
- if (is_arm_And_i(irn) || is_arm_Or_i(irn) || is_arm_Eor_i(irn))
- return 1;
- if (is_arm_Or_Shl_i(irn))
- return 1;
- return 0;
+ arm_attr_t *attr = get_arm_attr(irn);
+ return ARM_GET_SHF_MOD(attr) == ARM_SHF_IMM;
}
/**
- * Return a const or symconst as string.
+ * Return a const or SymConst as string.
*/
-static const char *node_const_to_str(ir_node *n) {
- char buffer[SNPRINTF_BUF_LEN];
-
- if ( is_immediate_node(n) ) {
- long longvalue = get_tarval_long(get_arm_value(n));
- char *str;
- assert(longvalue < 0x1000 && "constant doesn't fit in shifter_operand");
- snprintf(buffer, SNPRINTF_BUF_LEN - 1, "#%ld << %ld", longvalue & 0xff, (longvalue >> 8) << 1 );
- str = xmalloc(strlen(buffer) * sizeof(char));
- strcpy(str, buffer);
- return str;
- }
- if ( is_arm_Const(n) || is_arm_Const_Neg(n) ) {
- tarval *tv = get_arm_value(n);
- if ( mode_is_int(get_tarval_mode(tv)) ) {
- long longvalue = get_tarval_long(get_arm_value(n));
- char *str;
- assert(longvalue < 0x1000 && "constant doesn't fit in shifter_operand");
- snprintf(buffer, SNPRINTF_BUF_LEN - 1, "#%ld << %ld", longvalue & 0xff, (longvalue >> 8) << 1 );
- str = xmalloc(strlen(buffer) * sizeof(char));
- strcpy(str, buffer);
- return str;
- } else {
- return "found something else in arm_const";
- }
- } else if ( is_arm_SymConst(n) ) {
- return get_arm_symconst_label(n);
- } else {
- assert( 0 && "das ist gar keine Konstante");
- return NULL;
+static const char *node_const_to_str(ir_node *n, char *buf, int buflen) {
+ if (is_immediate_node(n)) {
+ snprintf(buf, buflen, "#0x%X", arm_decode_imm_w_shift(get_arm_value(n)));
+ return buf;
}
+ else if (is_arm_SymConst(n))
+ return get_arm_symconst_label(n);
+ assert( 0 && "das ist gar keine Konstante");
+ return NULL;
}
/**
* Returns node's offset as string.
*/
-static char *node_offset_to_str(ir_node *n) {
- char buffer[SNPRINTF_BUF_LEN];
- char *result;
+static const char *node_offset_to_str(ir_node *n, char *buf, int buflen) {
int offset = 0;
ir_op *irn_op = get_irn_op(n);
+
if (irn_op == op_be_StackParam) {
entity *ent = be_get_frame_entity(n);
offset = get_entity_offset_bytes(ent);
- } else if (irn_op==op_be_Reload || irn_op==op_be_Spill) {
- entity * ent = be_get_spill_entity(n);
+ } else if (irn_op == op_be_Reload || irn_op == op_be_Spill) {
+ entity *ent = be_get_frame_entity(n);
offset = get_entity_offset_bytes(ent);
- } else if (irn_op==op_be_IncSP) {
- int offs = be_get_IncSP_offset(n);
- be_stack_dir_t dir = be_get_IncSP_direction(n);
- offset = (dir == be_stack_dir_expand) ? -offs : offs;
+ } else if (irn_op == op_be_IncSP) {
+ offset = - be_get_IncSP_offset(n);
} else {
return "node_offset_to_str will fuer diesen Knotentyp noch implementiert werden";
}
- snprintf(buffer, SNPRINTF_BUF_LEN, "%d", offset);
- result = xmalloc(sizeof(char)*(strlen(buffer) + 1));
- strcpy(result, buffer);
- return result;
+ snprintf(buf, buflen, "%d", offset);
+ return buf;
}
/* We always pass the ir_node which is a pointer. */
reg = arch_get_irn_register(arch_env, op);
- /* ONLY TEMPORARY WORK-AROUND */
-// if (!reg) {
-// printf("FIXME\n");
-// reg = &arm_general_purpose_regs[REG_MURX];
-// }
-
assert(reg && "no in register found");
return reg;
}
static int arm_const_to_str(lc_appendable_t *app,
const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
{
+ char buffer[SNPRINTF_BUF_LEN];
const char *buf;
ir_node *X = arg->v_ptr;
return lc_appendable_snadd(app, "(null)", 6);
if (occ->conversion == 'C') {
- buf = node_const_to_str(X);
+ buf = node_const_to_str(X, buffer, sizeof(buffer));
}
else { /* 'O' */
- buf = node_offset_to_str(X);
+ buf = node_offset_to_str(X, buffer, sizeof(buffer));
}
return lc_appendable_snadd(app, buf, strlen(buf));
}
/**
- * Determines the SSE suffix depending on the mode.
+ * Returns the tarval or offset of an arm node as a string.
+ */
+static int arm_shift_str(lc_appendable_t *app,
+ const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
+{
+ char buffer[SNPRINTF_BUF_LEN];
+ ir_node *irn = arg->v_ptr;
+ arm_shift_modifier mod;
+
+ if (!irn)
+ return lc_appendable_snadd(app, "(null)", 6);
+
+ mod = get_arm_shift_modifier(irn);
+ if (ARM_HAS_SHIFT(mod)) {
+ long v = get_tarval_long(get_arm_value(irn));
+
+ snprintf(buffer, sizeof(buffer), ", %s #%ld", arm_shf_mod_name(mod), v);
+ return lc_appendable_snadd(app, buffer, strlen(buffer));
+ }
+ return 0;
+}
+
+/**
+ * Determines the instruction suffix depending on the mode.
*/
static int arm_get_mode_suffix(lc_appendable_t *app,
const lc_arg_occ_t *occ, const lc_arg_value_t *arg)
{
- ir_node *X = arg->v_ptr;
+ ir_node *irn = arg->v_ptr;
+ arm_attr_t *attr;
+ ir_mode *mode;
+ int bits;
- if (!X)
+ if (! irn)
return lc_appendable_snadd(app, "(null)", 6);
- if (get_mode_size_bits(get_irn_mode(X)) == 32)
+ attr = get_arm_attr(irn);
+ mode = attr->op_mode ? attr->op_mode : get_irn_mode(irn);
+ bits = get_mode_size_bits(mode);
+
+ if (bits == 32)
return lc_appendable_chadd(app, 's');
- else
+ else if (bits == 64)
return lc_appendable_chadd(app, 'd');
+ else
+ return lc_appendable_chadd(app, 'e');
}
/**
static const lc_arg_handler_t arm_reg_handler = { arm_get_arg_type, arm_get_reg_name };
static const lc_arg_handler_t arm_const_handler = { arm_get_arg_type, arm_const_to_str };
static const lc_arg_handler_t arm_mode_handler = { arm_get_arg_type, arm_get_mode_suffix };
+ static const lc_arg_handler_t arm_shf_handler = { arm_get_arg_type, arm_shift_str };
- if(env == NULL) {
+ if (env == NULL) {
/* extend the firm printer */
env = firm_get_arg_env();
//lc_arg_new_env();
lc_arg_register(env, "arm:cnst", 'C', &arm_const_handler);
lc_arg_register(env, "arm:offs", 'O', &arm_const_handler);
lc_arg_register(env, "arm:mode", 'M', &arm_mode_handler);
+ lc_arg_register(env, "arm:shf", 'X', &arm_shf_handler);
}
return env;
/**
* Formated print of commands and comments.
*/
-static void arm_fprintf_format(FILE *F, char *cmd_buf, char *cmnt_buf, ir_node *irn) {
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+static void arm_fprintf_format(FILE *F, const char *cmd_buf, const char *cmnt_buf, const ir_node *irn) {
+ lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F (%G) */\n", cmd_buf, cmnt_buf, irn, irn);
}
-/*
- * Add a number to a prefix. This number will not be used a second time.
+/**
+ * Returns a unique label. This number will not be used a second time.
*/
-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;
+static unsigned get_unique_label(void) {
+ static unsigned id = 0;
+ return ++id;
}
return buf;
}
-/************************************************************************/
-/* emit_arm */
-/************************************************************************/
-
+/**
+ * Emit a SymConst
+ */
static void emit_arm_SymConst(ir_node *irn, void *env) {
arm_emit_env_t *emit_env = env;
- FILE *out = emit_env->out;
- char buffer1[SNPRINTF_BUF_LEN];
- char *skip_label = get_unique_label(buffer1, SNPRINTF_BUF_LEN, ".L");
- char buffer2[SNPRINTF_BUF_LEN];
- char *indi_label = get_unique_label(buffer2, SNPRINTF_BUF_LEN, ".L");
- fprintf( out, "\tB %s\t\t\t\t\t/* start of indirect SymConst */\n", skip_label );
- fprintf( out, "\t.align 2\n" );
- fprintf( out, "%s:\n", indi_label );
- lc_efprintf(arm_get_arg_env(), out, "\t.word\t%C\n", irn);
- fprintf( out, "\t.align 2\n" );
- fprintf( out, "%s:\n", skip_label );
- lc_efprintf(arm_get_arg_env(), out, "\tLDR %1D, %s\t\t\t/* end of indirect SymConst */\n", irn, indi_label);
+ FILE *F = emit_env->out;
+ SymConstEntry *entry = obstack_alloc(&emit_env->obst, sizeof(*entry));
+ const lc_arg_env_t *arg_env = arm_get_arg_env();
+ char cmd_buf[256];
+
+ entry->label = get_unique_label();
+ entry->symconst = irn;
+ entry->next = emit_env->symbols;
+ emit_env->symbols = entry;
+
+ lc_esnprintf(arg_env, cmd_buf, 256, "ldr %1D, .L%u", irn, entry->label);
+ arm_fprintf_format(F, cmd_buf, "/* indirect SymConst */", irn);
}
+/**
+ * Returns the next block in a block schedule.
+ */
+static ir_node *sched_next_block(ir_node *block) {
+ return get_irn_link(block);
+}
+
+/**
+ * Emit a conditional jump.
+ */
static void emit_arm_CondJmp(ir_node *irn, void *env) {
arm_emit_env_t *emit_env = env;
FILE *out = emit_env->out;
char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
- foreach_out_edge(irn, edge) {
- ir_node* proj = get_edge_src_irn(edge);
- long nr = get_Proj_proj(proj);
+ foreach_out_edge(irn, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ long nr = get_Proj_proj(proj);
ir_node *block = get_irn_link(proj);
if ( nr == pn_Cond_true) {
true_block = block;
} else {
assert(0 && "tertium non datur! (CondJmp)");
}
- }
+ }
if (proj_num == pn_Cmp_False) {
- fprintf(out, "\tB BLOCK_%ld\t\t\t/* false case */\n", get_irn_node_nr(false_block));
+ /* always false: should not happen */
+ fprintf(out, "\tb BLOCK_%ld\t\t\t/* false case */\n", get_irn_node_nr(false_block));
} else if (proj_num == pn_Cmp_True) {
- fprintf(out, "\tB BLOCK_%ld\t\t\t/* true case */\n", get_irn_node_nr(true_block));
+ /* always true: should not happen */
+ fprintf(out, "\tb BLOCK_%ld\t\t\t/* true case */\n", get_irn_node_nr(true_block));
} else {
+ ir_node *block = get_nodes_block(irn);
+
if (mode_is_float(opmode)) {
suffix = "ICHWILLIMPLEMENTIERTWERDEN";
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "FCMP %1S, %2S", irn, irn);
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "fcmp %1S, %2S", irn, irn);
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* Compare(%1S, %2S) -> FCPSR */", irn, irn );
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "FMSTAT", irn, irn);
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "fmstat", irn, irn);
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* FCSPR -> CPSR */");
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
-
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* true case */");
- arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
-
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B BLOCK_%d", get_irn_node_nr(false_block));
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* false case */");
- arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
} else {
+ if (true_block == sched_next_block(block)) {
+ /* negate it */
+ proj_num = get_negated_pnc(proj_num, opmode);
+ }
switch(proj_num) {
- case pn_Cmp_Eq: suffix = "EQ"; break;
- case pn_Cmp_Lt: suffix = "LT"; break;
- case pn_Cmp_Le: suffix = "LE"; break;
- case pn_Cmp_Gt: suffix = "GT"; break;
- case pn_Cmp_Ge: suffix = "GE"; break;
- case pn_Cmp_Lg: suffix = "NE"; break;
- case pn_Cmp_Leg: suffix = "AL"; break;
- default: assert(0 && "komische Dinge geschehen");
+ case pn_Cmp_Eq: suffix = "eq"; break;
+ case pn_Cmp_Lt: suffix = "lt"; break;
+ case pn_Cmp_Le: suffix = "le"; break;
+ case pn_Cmp_Gt: suffix = "gt"; break;
+ case pn_Cmp_Ge: suffix = "ge"; break;
+ case pn_Cmp_Lg: suffix = "ne"; break;
+ case pn_Cmp_Leg: suffix = "al"; break;
+ default: assert(0 && "komische Dinge geschehen"); suffix = "al";
}
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "CMP %1S, %2S", irn, irn);
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "cmp %1S, %2S", irn, irn);
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* Compare(%1S, %2S) -> CPSR */", irn, irn );
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
+ }
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* true case */");
- arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
-
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "B BLOCK_%d", get_irn_node_nr(false_block));
+ if (true_block == sched_next_block(block)) {
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "b%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* false case */");
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
+
+ lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* fallthrough BLOCK_%d */", get_irn_node_nr(false_block));
+ arm_fprintf_format(out, "", cmnt_buf, irn);
}
+ else {
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "b%s BLOCK_%d", suffix, get_irn_node_nr(true_block));
+ lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* true case */");
+ arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
+
+ if (false_block == sched_next_block(block)) {
+ lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* fallthrough BLOCK_%d */", get_irn_node_nr(false_block));
+ arm_fprintf_format(out, "", cmnt_buf, irn);
+ }
+ else {
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "b BLOCK_%d", get_irn_node_nr(false_block));
+ lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* false case */");
+ arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
+ }
+ }
}
}
case 0:
break;
case 1:
- lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r12, [%2S, #0]!", irn);
+ lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "ldr %%r12, [%2S, #0]!", irn);
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
- lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STR %%r12, [%1S, #0]!", irn);
+ lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "str %%r12, [%1S, #0]!", irn);
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
break;
case 2:
- lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S}", irn, irn);
+ lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "ldmia %2S!, {%%r12, %3S}", irn, irn);
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
- lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S}", irn, irn);
+ lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "stmia %1S!, {%%r12, %3S}", irn, irn);
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
break;
case 3:
- lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S, %4S}", irn, irn, irn);
+ lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "ldmia %2S!, {%%r12, %3S, %4S}", irn, irn, irn);
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
- lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S, %4S}", irn, irn, irn);
+ lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "stmia %1S!, {%%r12, %3S, %4S}", irn, irn, irn);
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
break;
}
size >>= 2;
while (size) {
- lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "LDMIA %2S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
+ lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "ldmia %2S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
- lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "STMIA %1S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
+ lc_esnprintf(arg_env, cmd_buf, SNPRINTF_BUF_LEN, "stmia %1S!, {%%r12, %3S, %4S, %5S}", irn, irn, irn, irn);
arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
--size;
}
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "CMP %1S, #%u", irn, n_projs - 1);
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "cmp %1S, #%u", irn, n_projs - 1);
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
- lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "BHI BLOCK_%d", default_block_num);
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "bhi BLOCK_%d", default_block_num);
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
- lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r12, TABLE_%d_START", block_nr);
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ldr %%r12, TABLE_%d_START", block_nr);
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
- lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %%r12, %%r12, %1S, LSL #2", irn);
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "add %%r12, %%r12, %1S, LSL #2", irn);
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
- lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "LDR %%r15, [%%r12, #0]");
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ldr %%r15, [%%r12, #0]");
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "", irn);
- lc_efprintf(arm_get_arg_env(), out, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ arm_fprintf_format(out, cmd_buf, cmnt_buf, irn);
// LDR %r12, .TABLE_X_START
// ADD %r12, %r12, [%1S, LSL #2]
static void emit_be_Call(ir_node *irn, void *env) {
arm_emit_env_t *emit_env = env;
- FILE *out = emit_env->out;
- entity *target_entity = be_Call_get_entity(irn);
- const char *target_name = get_entity_name(target_entity);
- fprintf(out, "\tBL %s\t\t\t\t/* Call */\n", target_name);
+ FILE *F = emit_env->out;
+ entity *ent = be_Call_get_entity(irn);
+ char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
+
+ if (ent)
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "bl %s", get_entity_ld_name(ent));
+ else
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "%1D", get_irn_n(irn, be_pos_Call_ptr));
+ lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F (be_Call) */", irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
}
+/** Emit an IncSP node */
static void emit_be_IncSP(const ir_node *irn, arm_emit_env_t *emit_env) {
FILE *F = emit_env->out;
- unsigned offs = be_get_IncSP_offset(irn);
- if (offs) {
+ int offs = be_get_IncSP_offset(irn);
+
+ if (offs != 0) {
char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "ADD %1D, %1S, #%O", irn, irn, irn );
+ lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "add %1D, %1S, #%O", irn, irn, irn );
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* IncSP(%O) */", irn);
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
} else {
- char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
- lc_esnprintf(arm_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "");
+ char cmnt_buf[SNPRINTF_BUF_LEN];
lc_esnprintf(arm_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* omitted IncSP(%O) */", irn);
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ arm_fprintf_format(F, "", cmnt_buf, irn);
}
}
static void emit_be_Copy(const ir_node *irn, arm_emit_env_t *emit_env) {
FILE *F = emit_env->out;
ir_mode *mode = get_irn_mode(irn);
- assert( (mode != mode_E) && "IEEE Extended FP not supported");
+ const lc_arg_env_t *arm_env = arm_get_arg_env();
+ char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
if (get_in_reg(irn, 0) == get_out_reg(irn, 0)) {
- char cmd_buf[256], cmnt_buf[256];
- lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "");
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* omitted Copy: %1S -> %1D */", irn, irn);
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* omitted Copy: %1S -> %1D */", irn, irn);
+ lc_efprintf(arm_env, F, "\t%-35s %-60s /* %+F */\n", "", cmnt_buf, irn);
return;
}
- if (mode == mode_F) {
- char cmd_buf[256], cmnt_buf[256];
- lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "FCPYS %1D, %1S", irn, irn);
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
- } else if (mode == mode_D) {
- char cmd_buf[256], cmnt_buf[256];
- lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "FCPYD %1D, %1S", irn, irn);
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ if (mode_is_float(mode)) {
+ if (USE_FPA(emit_env->cg->isa)) {
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "mvf%M %1D, %1S", irn, irn, irn);
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* Copy: %1S -> %1D */", irn, irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
+ }
+ else {
+ assert(0 && "move not supported for this mode");
+ }
} else if (mode_is_numP(mode)) {
- char cmd_buf[256], cmnt_buf[256];
- lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "MOV %1D, %1S", irn, irn);
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Copy: %1S -> %1D */", irn, irn);
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "mov %1D, %1S", irn, irn);
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* Copy: %1S -> %1D */", irn, irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
} else {
assert(0 && "move not supported for this mode");
}
// emit_arm_Copy(irn, emit_env);
}
+/**
+ * Emit code for a Spill.
+ */
static void emit_be_Spill(const ir_node *irn, arm_emit_env_t *emit_env) {
FILE *F = emit_env->out;
ir_mode *mode = get_irn_mode(irn);
- assert( (mode != mode_E) && "IEEE Extended FP not supported");
- if (mode_is_dataM(mode)) {
- char cmd_buf[256], cmnt_buf[256];
- lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "STR %2S, [%1S, #%O]", irn, irn, irn );
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Spill(%2S) -> (%1S) */", irn, irn);
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ const lc_arg_env_t *arm_env = arm_get_arg_env();
+ char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
+
+ if (mode_is_float(mode)) {
+ if (USE_FPA(emit_env->cg->isa)) {
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "stf %2S, [%1S, #%O]", irn, irn, irn );
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* Spill(%2S) -> (%1S) */", irn, irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
+ }
+ else {
+ assert(0 && "move not supported for this mode");
+ }
+ } else if (mode_is_dataM(mode)) {
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "str %2S, [%1S, #%O]", irn, irn, irn );
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* Spill(%2S) -> (%1S) */", irn, irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
} else {
assert(0 && "spill not supported for this mode");
}
}
+/**
+ * Emit code for a Reload.
+ */
static void emit_be_Reload(const ir_node* irn, arm_emit_env_t *emit_env) {
FILE *F = emit_env->out;
ir_mode *mode = get_irn_mode(irn);
- assert( (mode != mode_E) && "IEEE Extended FP not supported");
- if (mode_is_dataM(mode)) {
- char cmd_buf[256], cmnt_buf[256];
- lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "LDR %1D, [%1S, #%O]", irn, irn, irn );
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* Reload(%1S) -> (%1D) */", irn, irn);
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ const lc_arg_env_t *arm_env = arm_get_arg_env();
+ char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
+
+ if (mode_is_float(mode)) {
+ if (USE_FPA(emit_env->cg->isa)) {
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "ldf %1D, [%1S, #%O]", irn, irn, irn );
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* Reload(%1S) -> (%1D) */", irn, irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
+ }
+ else {
+ assert(0 && "move not supported for this mode");
+ }
+ } else if (mode_is_dataM(mode)) {
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "ldr %1D, [%1S, #%O]", irn, irn, irn );
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* Reload(%1S) -> (%1D) */", irn, irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
} else {
assert(0 && "reload not supported for this mode");
}
static void emit_be_Perm(const ir_node* irn, arm_emit_env_t *emit_env) {
FILE *F = emit_env->out;
- ir_mode *mode = get_irn_mode(irn);
- assert( (mode != mode_E) && "IEEE Extended FP not supported");
- lc_efprintf(arm_get_arg_env(), F, "\tEOR %1S, %1S, %2S\t\t\t/* begin Perm(%1S, %2S) */\n", irn, irn, irn, irn, irn);
- lc_efprintf(arm_get_arg_env(), F, "\tEOR %2S, %1S, %2S\n", irn, irn, irn);
- lc_efprintf(arm_get_arg_env(), F, "\tEOR %1S, %1S, %2S\t\t\t/* end Perm(%1S, %2S) */\n", irn, irn, irn, irn, irn);
+ const lc_arg_env_t *arm_env = arm_get_arg_env();
+ char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
+
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "eor %1S, %1S, %2S", irn, irn, irn);
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* begin Perm(%1S, %2S) */", irn, irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
+
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "eor %2S, %1S, %2S", irn, irn, irn);
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, " ");
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
+
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "eor %1S, %1S, %2S", irn, irn, irn);
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* end Perm(%1S, %2S) */", irn, irn);
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
}
static void emit_be_StackParam(const ir_node *irn, arm_emit_env_t *emit_env) {
FILE *F = emit_env->out;
ir_mode *mode = get_irn_mode(irn);
- char cmd_buf[256], cmnt_buf[256];
- assert( (mode != mode_E) && "IEEE Extended FP not supported");
+ const lc_arg_env_t *arm_env = arm_get_arg_env();
+ char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
- lc_esnprintf(arm_get_arg_env(), cmd_buf, 256, "LDR %1D, [%1S, #%O]", irn, irn, irn );
- lc_esnprintf(arm_get_arg_env(), cmnt_buf, 256, "/* StackParam: (%1S + %O) -> %1D */",irn , irn, irn, get_irn_n(irn, 0));
- lc_efprintf(arm_get_arg_env(), F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, irn);
+ if (mode_is_float(mode)) {
+ if (USE_FPA(emit_env->cg->isa)) {
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "ldf %1D, [%1S, #%O]", irn, irn, irn );
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* StackParam: (%1S + %O) -> %1D */",irn , irn, irn, get_irn_n(irn, 0));
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
+ }
+ else {
+ assert(0 && "move not supported for this mode");
+ }
+ } else {
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "ldr %1D, [%1S, #%O]", irn, irn, irn );
+ lc_esnprintf(arm_env, cmnt_buf, SNPRINTF_BUF_LEN, "/* StackParam: (%1S + %O) -> %1D */",irn , irn, irn, get_irn_n(irn, 0));
+ arm_fprintf_format(F, cmd_buf, cmnt_buf, irn);
+ }
}
/************************************************************************/
/************************************************************************/
static void emit_Jmp(ir_node *irn, void *env) {
+ char cmd_buf[SNPRINTF_BUF_LEN];
arm_emit_env_t *emit_env = env;
- FILE *out = emit_env->out;
+ FILE *F = emit_env->out;
const ir_edge_t *edge = get_irn_out_edge_first(irn);
+ const lc_arg_env_t *arm_env = arm_get_arg_env();
ir_node *target_block = get_edge_src_irn(edge);
- fprintf(out, "\tB BLOCK_%ld\t\t\t/* unconditional Jump */\n", get_irn_node_nr(target_block));
+
+ lc_esnprintf(arm_env, cmd_buf, SNPRINTF_BUF_LEN, "b BLOCK_%d", get_irn_node_nr(target_block));
+ arm_fprintf_format(F, cmd_buf, "/* unconditional Jump */", irn);
}
-static void emit_Proj(ir_node *irn, void *env) {
+static void emit_arm_fpaDbl2GP(const ir_node *n, arm_emit_env_t *env) {
+ FILE *F = env->out;
+ char cmd_buf[256];
+ const lc_arg_env_t *arg_env = arm_get_arg_env();
+ lc_esnprintf(arg_env, cmd_buf, 256, "stfd %1S, [sp, #-8]! ", n);
+ arm_fprintf_format(F, cmd_buf, "/* Push fp to stack */", n);
+
+ lc_esnprintf(arg_env, cmd_buf, 256, "ldmfd sp!, {%2D, %1D} ", n, n);
+ arm_fprintf_format(F, cmd_buf, "/* Pop destination */", n);
}
+static void emit_silence(ir_node *irn, void *env) {
+
+}
/***********************************************************************************
*/
static void arm_register_emitters(void) {
-#define ARM_EMIT(a) op_arm_##a->ops.generic = (op_func)emit_arm_##a
+#define ARM_EMIT(a) op_arm_##a->ops.generic = (op_func)emit_arm_##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
+#define SILENCE(a) op_##a->ops.generic = (op_func)emit_silence
/* first clear the generic function pointer for all ops */
clear_irp_opcodes_generic_func();
arm_register_spec_emitters();
/* other emitter functions */
- ARM_EMIT(CondJmp);
-// ARM_EMIT(SwitchJmp);
- ARM_EMIT(CopyB);
+ ARM_EMIT(CondJmp);
+ ARM_EMIT(CopyB);
// ARM_EMIT(CopyB_i);
// ARM_EMIT(Const);
ARM_EMIT(SymConst);
ARM_EMIT(SwitchJmp);
+ ARM_EMIT(fpaDbl2GP);
/* benode emitter */
BE_EMIT(Call);
BE_EMIT(StackParam);
/* firm emitter */
- EMIT(Jmp);
-
+ EMIT(Jmp);
/* noisy stuff */
#ifdef SILENCER
- EMIT(Proj);
+ SILENCE(Proj);
+ SILENCE(Phi);
+ SILENCE(be_Keep);
+ SILENCE(be_CopyKeep);
#endif
#undef ARM_EMIT
#undef BE_EMIT
#undef EMIT
+#undef SILENCE
}
+typedef void (node_emitter)(const ir_node *, void *);
+
/**
* Emits code for a node.
*/
static void arm_emit_node(const ir_node *irn, void *env) {
- arm_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);
+ arm_emit_env_t *emit_env = env;
+ FILE *F = emit_env->out;
+ ir_op *op = get_irn_op(irn);
+ DEBUG_ONLY(firm_dbg_module_t *mod = emit_env->mod;)
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);
+ node_emitter *emit = (node_emitter *)op->ops.generic;
+ emit(irn, env);
}
else {
- ir_fprintf(F, "\t\t\t\t\t/* %+F */\n", irn);
+ ir_fprintf(F, "\t%-35s /* %+F %G */\n", "", irn, irn);
}
}
void arm_gen_block(ir_node *block, void *env) {
ir_node *irn;
- if (! is_Block(block))
- return;
-
fprintf(((arm_emit_env_t *)env)->out, "BLOCK_%ld:\n", get_irn_node_nr(block));
sched_foreach(block, irn) {
arm_emit_node(irn, env);
* Emits code for function start.
*/
void arm_emit_start(FILE *F, ir_graph *irg) {
- const char *irg_name = get_entity_name(get_irg_entity(irg));
- fprintf(F, "\t.text\n");
+ entity *ent = get_irg_entity(irg);
+ const char *irg_name = get_entity_ld_name(ent);
+ arm_switch_section(F, SECTION_TEXT);
fprintf(F, "\t.align 2\n");
- fprintf(F, "\t.global %s\n", irg_name);
+
+ if (get_entity_visibility(ent) == visibility_external_visible)
+ fprintf(F, "\t.global %s\n", irg_name);
fprintf(F, "%s:\n", irg_name);
}
* Emits code for function end
*/
void arm_emit_end(FILE *F, ir_graph *irg) {
+ fprintf(F, "\t.ident \"firmcc\"\n");
}
/**
/**
- * Main driver
+ * Main driver. Emits the code for one routine.
*/
void arm_gen_routine(FILE *F, ir_graph *irg, const arm_code_gen_t *cg) {
+ SymConstEntry *entry;
arm_emit_env_t emit_env;
+ ir_node **blk_sched;
+ int i, n;
emit_env.out = F;
emit_env.arch_env = cg->arch_env;
emit_env.cg = cg;
+ emit_env.symbols = NULL;
+ obstack_init(&emit_env.obst);
FIRM_DBG_REGISTER(emit_env.mod, "firm.be.arm.emit");
/* set the global arch_env (needed by print hooks) */
arm_register_emitters();
+ /* create the block schedule. For now, we don't need it earlier. */
+ blk_sched = sched_create_block_schedule(cg->irg, cg->birg->exec_freq);
+
arm_emit_start(F, irg);
irg_block_walk_graph(irg, arm_gen_labels, NULL, &emit_env);
- irg_walk_blkwise_graph(irg, NULL, arm_gen_block, &emit_env);
- arm_emit_end(F, irg);
+
+ n = ARR_LEN(blk_sched);
+ for (i = 0; i < n;) {
+ ir_node *block, *next_bl;
+
+ block = blk_sched[i];
+ ++i;
+ next_bl = i < n ? blk_sched[i] : NULL;
+
+ /* set here the link. the emitter expects to find the next block here */
+ set_irn_link(block, next_bl);
+ arm_gen_block(block, &emit_env);
+ }
+
+ /* emit SymConst values */
+ if (emit_env.symbols)
+ fprintf(F, "\t.align 2\n");
+
+ for (entry = emit_env.symbols; entry; entry = entry->next) {
+ fprintf(F, ".L%u:\n", entry->label);
+ lc_efprintf(arm_get_arg_env(), F, "\t.word\t%C\n", entry->symconst);
+ }
+
+ obstack_free(&emit_env.obst, NULL);
}