X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Famd64%2Famd64_emitter.c;h=c4ed8edc71c4c7b64832de5f35810c7341d05556;hb=5ce100386043a57a864379c8b6d8e6bb95a98596;hp=3754cdc7898ad4a7877b0a98ad99d6b160ce2201;hpb=2b31fff481c9cb3a16ca4a0dc3b15bad3e19e5ec;p=libfirm

diff --git a/ir/be/amd64/amd64_emitter.c b/ir/be/amd64/amd64_emitter.c
index 3754cdc78..c4ed8edc7 100644
--- a/ir/be/amd64/amd64_emitter.c
+++ b/ir/be/amd64/amd64_emitter.c
@@ -25,6 +25,8 @@
 
 #include <limits.h>
 
+#include "be_t.h"
+#include "error.h"
 #include "xmalloc.h"
 #include "tv.h"
 #include "iredges.h"
@@ -58,47 +60,128 @@
  * |_|                                       |_|
  *************************************************************/
 
-void amd64_emit_register(const arch_register_t *reg)
+/**
+ * Returns the target block for a control flow node.
+ */
+static ir_node *get_cfop_target_block(const ir_node *irn)
 {
-	be_emit_char('%');
-	be_emit_string(arch_register_get_name(reg));
+	return (ir_node*)get_irn_link(irn);
 }
 
-void amd64_emit_immediate(const ir_node *node)
+void amd64_emitf(ir_node const *const node, char const *fmt, ...)
 {
-	const amd64_attr_t *attr = get_amd64_attr_const (node);
-	be_emit_char('$');
-	be_emit_irprintf("0x%X", attr->ext.imm_value);
-}
+	va_list ap;
+	va_start(ap, fmt);
 
-void amd64_emit_fp_offset(const ir_node *node)
-{
-	const amd64_SymConst_attr_t *attr = get_amd64_SymConst_attr_const(node);
-	if (attr->fp_offset)
-		be_emit_irprintf("%d", attr->fp_offset);
-}
+	be_emit_char('\t');
+	for (;;) {
+		char const *start = fmt;
 
-void amd64_emit_source_register(const ir_node *node, int pos)
-{
-	amd64_emit_register(arch_get_irn_register_in(node, pos));
-}
+		while (*fmt != '%' && *fmt != '\n' && *fmt != '\0')
+			++fmt;
+		if (fmt != start) {
+			be_emit_string_len(start, fmt - start);
+		}
 
-void amd64_emit_dest_register(const ir_node *node, int pos)
-{
-	amd64_emit_register(arch_get_irn_register_out(node, pos));
-}
+		if (*fmt == '\n') {
+			be_emit_char('\n');
+			be_emit_write_line();
+			be_emit_char('\t');
+			++fmt;
+			continue;
+		}
 
-/**
- * Returns the target label for a control flow node.
- */
-/*
-static void amd64_emit_cfop_target(const ir_node *node)
-{
-	ir_node *block = get_irn_link(node);
+		if (*fmt == '\0')
+			break;
+
+		++fmt;
+
+		switch (*fmt++) {
+			arch_register_t const *reg;
+
+			case '%':
+				be_emit_char('%');
+				break;
+
+			case 'C': {
+				amd64_attr_t const *const attr = get_amd64_attr_const(node);
+				be_emit_irprintf("$0x%X", attr->ext.imm_value);
+				break;
+			}
+
+			case 'D':
+				if (*fmt < '0' || '9' <= *fmt)
+					goto unknown;
+				reg = arch_get_irn_register_out(node, *fmt++ - '0');
+				goto emit_R;
+
+			case 'E': {
+				ir_entity const *const ent = va_arg(ap, ir_entity const*);
+				be_gas_emit_entity(ent);
+				break;
+			}
+
+			case 'L': {
+				ir_node *const block = get_cfop_target_block(node);
+				be_gas_emit_block_name(block);
+				break;
+			}
+
+			case 'O': {
+				amd64_SymConst_attr_t const *const attr = get_amd64_SymConst_attr_const(node);
+				if (attr->fp_offset)
+					be_emit_irprintf("%d", attr->fp_offset);
+				break;
+			}
+
+			case 'R':
+				reg = va_arg(ap, arch_register_t const*);
+emit_R:
+				be_emit_char('%');
+				be_emit_string(reg->name);
+				break;
+
+			case 'S': {
+				int pos;
+				if ('0' <= *fmt && *fmt <= '9') {
+					pos = *fmt++ - '0';
+				} else if (*fmt == '*') {
+					++fmt;
+					pos = va_arg(ap, int);
+				} else {
+					goto unknown;
+				}
+				reg = arch_get_irn_register_in(node, pos);
+				goto emit_R;
+			}
+
+			case 'd': {
+				int const num = va_arg(ap, int);
+				be_emit_irprintf("%d", num);
+				break;
+			}
+
+			case 's': {
+				char const *const str = va_arg(ap, char const*);
+				be_emit_string(str);
+				break;
+			}
+
+			case 'u': {
+				unsigned const num = va_arg(ap, unsigned);
+				be_emit_irprintf("%u", num);
+				break;
+			}
+
+			default:
+unknown:
+				panic("unknown format conversion");
+		}
+	}
 
-	be_emit_irprintf("BLOCK_%ld", get_irn_node_nr(block));
+	be_emit_finish_line_gas(node);
+	va_end(ap);
 }
-*/
 
 /***********************************************************************************
  *                  _          __                                             _
@@ -110,40 +193,13 @@ static void amd64_emit_cfop_target(const ir_node *node)
  *
  ***********************************************************************************/
 
-/**
- * Default emitter for anything that we don't want to generate code for.
- */
-static void emit_nothing(const ir_node *node)
-{
-	(void) node;
-}
-
 /**
  * Emit a SymConst.
  */
 static void emit_amd64_SymConst(const ir_node *irn)
 {
 	const amd64_SymConst_attr_t *attr = get_amd64_SymConst_attr_const(irn);
-#if 0
-	sym_or_tv_t key, *entry;
-	unsigned label;
-
-	key.u.id     = get_entity_ld_ident(attr->entity);
-	key.is_ident = 1;
-	key.label    = 0;
-	entry = set_insert(sym_or_tv_t, sym_or_tv, &key, sizeof(key), hash_ptr(key.u.generic));
-	if (entry->label == 0) {
-		/* allocate a label */
-		entry->label = get_unique_label();
-	}
-	label = entry->label;
-#endif
-
-	be_emit_cstring("\tmov $");
-	be_gas_emit_entity(attr->entity);
-	be_emit_cstring(", ");
-	amd64_emit_dest_register(irn, 0);
-	be_emit_finish_line_gas(irn);
+	amd64_emitf(irn, "mov $%E, %D0", attr->entity);
 }
 
 /**
@@ -151,11 +207,7 @@ static void emit_amd64_SymConst(const ir_node *irn)
  */
 static void emit_amd64_Conv(const ir_node *irn)
 {
-	be_emit_cstring("\tmov ");
-	amd64_emit_source_register(irn, 0);
-	be_emit_cstring(", ");
-	amd64_emit_dest_register(irn, 0);
-	be_emit_finish_line_gas(irn);
+	amd64_emitf(irn, "mov %S0, %D0");
 }
 
 
@@ -167,24 +219,6 @@ static ir_node *sched_next_block(const ir_node *block)
     return (ir_node*)get_irn_link(block);
 }
 
-/**
- * Returns the target block for a control flow node.
- */
-static ir_node *get_cfop_target_block(const ir_node *irn)
-{
-	return (ir_node*)get_irn_link(irn);
-}
-
-/**
- * Emit the target label for a control flow node.
- */
-static void amd64_emit_cfop_target(const ir_node *irn)
-{
-	ir_node *block = get_cfop_target_block(irn);
-
-	be_gas_emit_block_name(block);
-}
-
 /**
  * Emit a Jmp.
  */
@@ -198,16 +232,10 @@ static void emit_amd64_Jmp(const ir_node *node)
 	/* we have a block schedule */
 	next_block = sched_next_block(block);
 	if (get_cfop_target_block(node) != next_block) {
-		be_emit_cstring("\tjmp ");
-		amd64_emit_cfop_target(node);
-	} else {
-		if (be_options.verbose_asm) {
-			be_emit_cstring("\t/* fallthrough to ");
-			amd64_emit_cfop_target(node);
-			be_emit_cstring(" */");
-		}
+		amd64_emitf(node, "jmp %L");
+	} else if (be_options.verbose_asm) {
+		amd64_emitf(node, "/* fallthrough to %L */");
 	}
-	be_emit_finish_line_gas(node);
 }
 
 /**
@@ -272,21 +300,12 @@ static void emit_amd64_Jcc(const ir_node *irn)
 	}
 
 	/* emit the true proj */
-	be_emit_irprintf("\tj%s ", suffix);
-	amd64_emit_cfop_target(proj_true);
-	be_emit_finish_line_gas(proj_true);
-
-	if (get_cfop_target_block(proj_false) == next_block) {
-		if (be_options.verbose_asm) {
-			be_emit_cstring("\t/* fallthrough to ");
-			amd64_emit_cfop_target(proj_false);
-			be_emit_cstring(" */");
-			be_emit_finish_line_gas(proj_false);
-		}
-	} else {
-		be_emit_cstring("\tjmp ");
-		amd64_emit_cfop_target(proj_false);
-		be_emit_finish_line_gas(proj_false);
+	amd64_emitf(proj_true, "j%s %L", suffix);
+
+	if (get_cfop_target_block(proj_false) != next_block) {
+		amd64_emitf(proj_false, "jmp %L");
+	} else if (be_options.verbose_asm) {
+		amd64_emitf(proj_false, "/* fallthrough to %L */");
 	}
 }
 
@@ -301,14 +320,11 @@ static void emit_be_Call(const ir_node *node)
 	 * variable argument counts */
 	if (get_method_variadicity (be_Call_get_type((ir_node *) node))) {
 		/* But this still is a hack... */
-		be_emit_cstring("\txor %rax, %rax");
-		be_emit_finish_line_gas(node);
+		amd64_emitf(node, "xor %%rax, %%rax");
 	}
 
 	if (entity) {
-		be_emit_cstring("\tcall ");
-		be_gas_emit_entity (be_Call_get_entity(node));
-		be_emit_finish_line_gas(node);
+		amd64_emitf(node, "call %E", entity);
 	} else {
 		be_emit_pad_comment();
 		be_emit_cstring("/* FIXME: call NULL entity?! */\n");
@@ -330,11 +346,7 @@ static void emit_be_Copy(const ir_node *irn)
 	if (mode_is_float(mode)) {
 		panic("move not supported for FP");
 	} else if (mode_is_data(mode)) {
-		be_emit_cstring("\tmov ");
-		amd64_emit_source_register(irn, 0);
-		be_emit_cstring(", ");
-		amd64_emit_dest_register(irn, 0);
-		be_emit_finish_line_gas(irn);
+		amd64_emitf(irn, "mov %S0, %D0");
 	} else {
 		panic("move not supported for this mode");
 	}
@@ -343,21 +355,14 @@ static void emit_be_Copy(const ir_node *irn)
 static void emit_be_Perm(const ir_node *node)
 {
 	const arch_register_t *in0, *in1;
-	const arch_register_class_t *cls0, *cls1;
 
 	in0 = arch_get_irn_register(get_irn_n(node, 0));
 	in1 = arch_get_irn_register(get_irn_n(node, 1));
 
-	cls0 = arch_register_get_class(in0);
-	cls1 = arch_register_get_class(in1);
+	arch_register_class_t const* const cls0 = in0->reg_class;
+	assert(cls0 == in1->reg_class && "Register class mismatch at Perm");
 
-	assert(cls0 == cls1 && "Register class mismatch at Perm");
-
-	be_emit_cstring("\txchg ");
-	amd64_emit_register (in0);
-	be_emit_cstring(", ");
-	amd64_emit_register (in1);
-	be_emit_finish_line_gas(node);
+	amd64_emitf(node, "xchg %R, %R", in0, in1);
 
 	if (cls0 != &amd64_reg_classes[CLASS_amd64_gp]) {
 		panic("unexpected register class in be_Perm (%+F)", node);
@@ -369,17 +374,8 @@ static void emit_amd64_FrameAddr(const ir_node *irn)
 	const amd64_SymConst_attr_t *attr =
 		(const amd64_SymConst_attr_t*) get_amd64_attr_const(irn);
 
-	be_emit_cstring("\tmov ");
-	amd64_emit_source_register(irn, 0);
-	be_emit_cstring(", ");
-	amd64_emit_dest_register(irn, 0);
-	be_emit_finish_line_gas(irn);
-
-	be_emit_cstring("\tadd ");
-	be_emit_irprintf("$0x%X", attr->fp_offset);
-	be_emit_cstring(", ");
-	amd64_emit_dest_register(irn, 0);
-	be_emit_finish_line_gas(irn);
+	amd64_emitf(irn, "mov %S0, %D0");
+	amd64_emitf(irn, "add $%u, %D0", attr->fp_offset);
 }
 
 /**
@@ -393,15 +389,9 @@ static void emit_be_IncSP(const ir_node *node)
 		return;
 
 	if (offs > 0) {
-		be_emit_irprintf("\tsub ");
-		be_emit_irprintf("$%u, ", offs);
-		amd64_emit_dest_register(node, 0);
-		be_emit_finish_line_gas(node);
+		amd64_emitf(node, "sub, $%d, %D0", offs);
 	} else {
-		be_emit_irprintf("\tadd ");
-		be_emit_irprintf("$%u, ", -offs);
-		amd64_emit_dest_register(node, 0);
-		be_emit_finish_line_gas(node);
+		amd64_emitf(node, "add, $%d, %D0", -offs);
 	}
 }
 
@@ -418,23 +408,11 @@ static void emit_be_Return(const ir_node *node)
 static void emit_amd64_binop_op(const ir_node *irn, int second_op)
 {
 	if (irn->op == op_amd64_Add) {
-		be_emit_cstring("\tadd ");
-		amd64_emit_source_register(irn, second_op);
-		be_emit_cstring(", ");
-		amd64_emit_dest_register(irn, 0);
-		be_emit_finish_line_gas(irn);
+		amd64_emitf(irn, "add %S*, %D0", second_op);
 	} else if (irn->op == op_amd64_Sub) {
-		be_emit_cstring("\tneg ");
-		amd64_emit_source_register(irn, second_op);
-		be_emit_finish_line_gas(irn);
-		be_emit_cstring("\tadd ");
-		amd64_emit_source_register(irn, second_op);
-		be_emit_cstring(", ");
-		amd64_emit_dest_register(irn, 0);
-		be_emit_finish_line_gas(irn);
-		be_emit_cstring("\tneg ");
-		amd64_emit_source_register(irn, second_op);
-		be_emit_finish_line_gas(irn);
+		amd64_emitf(irn, "neg %S*",      second_op);
+		amd64_emitf(irn, "add %S*, %D0", second_op);
+		amd64_emitf(irn, "neg %S*",      second_op);
 	}
 
 }
@@ -451,34 +429,15 @@ static void emit_amd64_binop(const ir_node *irn)
 	int second_op = 0;
 
 	if (reg_d1 != reg_s1 && reg_d1 != reg_s2) {
-		be_emit_cstring("\tmov ");
-		amd64_emit_register(reg_s1);
-		be_emit_cstring(", ");
-		amd64_emit_register(reg_d1);
-		be_emit_finish_line_gas(irn);
+		amd64_emitf(irn, "mov %R, %R", reg_s1, reg_d1);
 		second_op = 1;
-
 	} else if (reg_d1 == reg_s2 && reg_d1 != reg_s1) {
 		second_op = 0;
-
 	}
 
 	emit_amd64_binop_op(irn, second_op);
 }
 
-/**
- * The type of a emitter function.
- */
-typedef void (emit_func)(const ir_node *irn);
-
-/**
- * Set a node emitter. Make it a bit more type safe.
- */
-static inline void set_emitter(ir_op *op, emit_func arm_emit_node)
-{
-	op->ops.generic = (op_func)arm_emit_node;
-}
-
 /**
  * Enters the emitter functions for handled nodes into the generic
  * pointer of an opcode.
@@ -491,40 +450,22 @@ static void amd64_register_emitters(void)
 	/* register all emitter functions defined in spec */
 	amd64_register_spec_emitters();
 
-	set_emitter(op_amd64_SymConst,   emit_amd64_SymConst);
-	set_emitter(op_amd64_Jmp,        emit_amd64_Jmp);
-	set_emitter(op_amd64_Jcc,        emit_amd64_Jcc);
-	set_emitter(op_amd64_Conv,       emit_amd64_Conv);
-	set_emitter(op_amd64_FrameAddr,  emit_amd64_FrameAddr);
-	set_emitter(op_be_Return,        emit_be_Return);
-	set_emitter(op_be_Call,          emit_be_Call);
-	set_emitter(op_be_Copy,          emit_be_Copy);
-	set_emitter(op_be_IncSP,         emit_be_IncSP);
-	set_emitter(op_be_Perm,          emit_be_Perm);
-
-	set_emitter(op_amd64_Add,        emit_amd64_binop);
-	set_emitter(op_amd64_Sub,        emit_amd64_binop);
-
-	set_emitter(op_be_Start,         emit_nothing);
-	set_emitter(op_be_Keep,          emit_nothing);
-	set_emitter(op_Phi,              emit_nothing);
-}
-
-typedef void (*emit_func_ptr) (const ir_node *);
-
-/**
- * Emits code for a node.
- */
-static void amd64_emit_node(const ir_node *node)
-{
-	ir_op               *op       = get_irn_op(node);
-
-	if (op->ops.generic) {
-		emit_func_ptr func = (emit_func_ptr) op->ops.generic;
-		(*func) (node);
-	} else {
-		ir_fprintf(stderr, "No emitter for node %+F\n", node);
-	}
+	be_set_emitter(op_amd64_Add,        emit_amd64_binop);
+	be_set_emitter(op_amd64_Conv,       emit_amd64_Conv);
+	be_set_emitter(op_amd64_FrameAddr,  emit_amd64_FrameAddr);
+	be_set_emitter(op_amd64_Jcc,        emit_amd64_Jcc);
+	be_set_emitter(op_amd64_Jmp,        emit_amd64_Jmp);
+	be_set_emitter(op_amd64_Sub,        emit_amd64_binop);
+	be_set_emitter(op_amd64_SymConst,   emit_amd64_SymConst);
+	be_set_emitter(op_be_Call,          emit_be_Call);
+	be_set_emitter(op_be_Copy,          emit_be_Copy);
+	be_set_emitter(op_be_IncSP,         emit_be_IncSP);
+	be_set_emitter(op_be_Perm,          emit_be_Perm);
+	be_set_emitter(op_be_Return,        emit_be_Return);
+
+	be_set_emitter(op_Phi,      be_emit_nothing);
+	be_set_emitter(op_be_Keep,  be_emit_nothing);
+	be_set_emitter(op_be_Start, be_emit_nothing);
 }
 
 /**
@@ -541,7 +482,7 @@ static void amd64_gen_block(ir_node *block, void *data)
 	be_gas_begin_block(block, true);
 
 	sched_foreach(block, node) {
-		amd64_emit_node(node);
+		be_emit_node(node);
 	}
 }