X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbearch.c;h=3172effc1a0f735a02a67760a0a8f545c14fbce6;hb=41dc42afc8d00e0f364711ed0c919e4e29cb20e4;hp=0dfe27f786a9f83b8677e2e201fe5894078d0f36;hpb=641c8d10420714f80eb08b87a12355fdf96a7cf2;p=libfirm

diff --git a/ir/be/bearch.c b/ir/be/bearch.c
index 0dfe27f78..3172effc1 100644
--- a/ir/be/bearch.c
+++ b/ir/be/bearch.c
@@ -23,16 +23,16 @@
  * @author      Sebastian Hack
  * @version     $Id$
  */
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif
 
 #include <string.h>
 
-#include "bearch_t.h"
-#include "benode_t.h"
+#include "bearch.h"
+#include "benode.h"
+#include "beinfo.h"
 #include "ircons_t.h"
 #include "irnode_t.h"
+#include "irop_t.h"
 
 #include "bitset.h"
 #include "pset.h"
@@ -40,6 +40,21 @@
 
 #include "irprintf.h"
 
+static const arch_register_req_t no_requirement = {
+	arch_register_req_type_none,
+	NULL,
+	NULL,
+	0,
+	0,
+	0
+};
+const arch_register_req_t *arch_no_register_req = &no_requirement;
+
+static reg_out_info_t dummy_info = {
+	NULL,
+	&no_requirement
+};
+
 /* Initialize the architecture environment struct. */
 arch_env_t *arch_env_init(const arch_isa_if_t *isa_if, FILE *file_handle, be_main_env_t *main_env)
 {
@@ -48,26 +63,12 @@ arch_env_t *arch_env_init(const arch_isa_if_t *isa_if, FILE *file_handle, be_mai
 	return arch_env;
 }
 
-/**
- * Put all registers in a class into a bitset.
- * @param cls The class.
- * @param bs The bitset.
- * @return The number of registers in the class.
- */
-static int arch_register_class_put(const arch_register_class_t *cls, bitset_t *bs)
-{
-	int i, n = cls->n_regs;
-	for (i = n - 1; i >= 0; --i)
-		bitset_set(bs, i);
-	return n;
-}
-
 /**
  * Get the isa responsible for a node.
  * @param irn The node to get the responsible isa for.
  * @return The irn operations given by the responsible isa.
  */
-static INLINE const arch_irn_ops_t *get_irn_ops(const ir_node *irn)
+static const arch_irn_ops_t *get_irn_ops(const ir_node *irn)
 {
 	const ir_op          *ops;
 	const arch_irn_ops_t *be_ops;
@@ -80,245 +81,220 @@ static INLINE const arch_irn_ops_t *get_irn_ops(const ir_node *irn)
 	ops    = get_irn_op(irn);
 	be_ops = get_op_ops(ops)->be_ops;
 
-	assert(be_ops);
 	return be_ops;
 }
 
-const arch_register_req_t *arch_get_register_req(const ir_node *irn, int pos)
-{
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	return ops->get_irn_reg_req(irn, pos);
-}
-
 void arch_set_frame_offset(ir_node *irn, int offset)
 {
 	const arch_irn_ops_t *ops = get_irn_ops(irn);
 	ops->set_frame_offset(irn, offset);
 }
 
-ir_entity *arch_get_frame_entity(const arch_env_t *env, const ir_node *irn)
+ir_entity *arch_get_frame_entity(const ir_node *irn)
 {
 	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
 	return ops->get_frame_entity(irn);
 }
 
-void arch_set_frame_entity(const arch_env_t *env, ir_node *irn, ir_entity *ent)
+int arch_get_sp_bias(ir_node *irn)
 {
 	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
-	ops->set_frame_entity(irn, ent);
-}
-
-int arch_get_sp_bias(const arch_env_t *env, ir_node *irn)
-{
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
 	return ops->get_sp_bias(irn);
 }
 
-arch_inverse_t *arch_get_inverse(const arch_env_t *env, const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obstack)
+arch_inverse_t *arch_get_inverse(const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obstack)
 {
 	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
 
-	if(ops->get_inverse) {
+	if (ops->get_inverse) {
 		return ops->get_inverse(irn, i, inverse, obstack);
 	} else {
 		return NULL;
 	}
 }
 
-int arch_possible_memory_operand(const arch_env_t *env, const ir_node *irn, unsigned int i) {
+int arch_possible_memory_operand(const ir_node *irn, unsigned int i)
+{
 	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
 
-	if(ops->possible_memory_operand) {
+	if (ops->possible_memory_operand) {
 		return ops->possible_memory_operand(irn, i);
 	} else {
 		return 0;
 	}
 }
 
-void arch_perform_memory_operand(const arch_env_t *env, ir_node *irn, ir_node *spill, unsigned int i) {
+void arch_perform_memory_operand(ir_node *irn, ir_node *spill, unsigned int i)
+{
 	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
 
-	if(ops->perform_memory_operand) {
+	if (ops->perform_memory_operand) {
 		ops->perform_memory_operand(irn, spill, i);
 	} else {
 		return;
 	}
 }
 
-int arch_get_op_estimated_cost(const arch_env_t *env, const ir_node *irn)
+int arch_get_op_estimated_cost(const ir_node *irn)
 {
 	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
 
-	if(ops->get_op_estimated_cost) {
+	if (ops->get_op_estimated_cost) {
 		return ops->get_op_estimated_cost(irn);
 	} else {
 		return 1;
 	}
 }
 
-int arch_is_possible_memory_operand(const arch_env_t *env, const ir_node *irn, int i)
+static reg_out_info_t *get_out_info(const ir_node *node)
 {
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
-
-	if(ops->possible_memory_operand) {
-	   	return ops->possible_memory_operand(irn, i);
-	} else {
-		return 0;
+	size_t                pos = 0;
+	const backend_info_t *info;
+	assert(get_irn_mode(node) != mode_T);
+	if (is_Proj(node)) {
+		pos  = get_Proj_proj(node);
+		node = get_Proj_pred(node);
 	}
+
+	info = be_get_info(node);
+	/* We have a problem with the switch-node where there can be arbitrary
+	 * Proj-numbers, so we can't easily allocate an array big-enough to hold
+	 * all of them. So until we rewrite Switch-nodes we need this special case
+	 */
+	if (info->out_infos == NULL)
+		return &dummy_info;
+	assert(pos < ARR_LEN(info->out_infos));
+	return &info->out_infos[pos];
 }
 
-int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, int pos, bitset_t *bs)
+static reg_out_info_t *get_out_info_n(const ir_node *node, int pos)
 {
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	const arch_register_req_t *req = ops->get_irn_reg_req(irn, pos);
-	(void)env; // TODO remove parameter
-
-	if(req->type == arch_register_req_type_none) {
-		bitset_clear_all(bs);
-		return 0;
-	}
+	const backend_info_t *info = be_get_info(node);
+	assert(!is_Proj(node));
+	assert(pos >= 0 && pos < (int)ARR_LEN(info->out_infos));
+	return &info->out_infos[pos];
+}
 
-	if(arch_register_req_is(req, limited)) {
-		rbitset_copy_to_bitset(req->limited, bs);
-		return bitset_popcnt(bs);
-	}
 
-	arch_register_class_put(req->cls, bs);
-	return req->cls->n_regs;
+const arch_register_t *arch_get_irn_register(const ir_node *node)
+{
+	const reg_out_info_t *out = get_out_info(node);
+	return out->reg;
 }
 
-void arch_put_non_ignore_regs(const arch_register_class_t *cls, bitset_t *bs)
+const arch_register_t *arch_get_irn_register_out(const ir_node *node, int pos)
 {
-	unsigned i;
-
-	for(i = 0; i < cls->n_regs; ++i) {
-		if(!arch_register_type_is(&cls->regs[i], ignore))
-			bitset_set(bs, i);
-	}
+	const reg_out_info_t *out = get_out_info_n(node, pos);
+	return out->reg;
 }
 
-int arch_is_register_operand(const arch_env_t *env,
-    const ir_node *irn, int pos)
+const arch_register_t *arch_get_irn_register_in(const ir_node *node, int pos)
 {
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	const arch_register_req_t *req = ops->get_irn_reg_req(irn, pos);
-	(void)env; // TODO remove parameter
-
-	return req != NULL;
+	ir_node *op = get_irn_n(node, pos);
+	return arch_get_irn_register(op);
 }
 
-int arch_reg_is_allocatable(const arch_env_t *env, const ir_node *irn,
-    int pos, const arch_register_t *reg)
+void arch_set_irn_register_out(ir_node *node, int pos,
+                               const arch_register_t *reg)
 {
-	const arch_register_req_t *req = arch_get_register_req(irn, pos);
-	(void)env; // TODO remove parameter
-
-	if(req->type == arch_register_req_type_none)
-		return 0;
-
-	if(arch_register_req_is(req, limited)) {
-		assert(arch_register_get_class(reg) == req->cls);
-		return rbitset_is_set(req->limited, arch_register_get_index(reg));
-	}
-
-	return req->cls == reg->reg_class;
+	reg_out_info_t *out = get_out_info_n(node, pos);
+	out->reg            = reg;
 }
 
-const arch_register_class_t *
-arch_get_irn_reg_class(const arch_env_t *env, const ir_node *irn, int pos)
+void arch_set_irn_register(ir_node *node, const arch_register_t *reg)
 {
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	const arch_register_req_t *req = ops->get_irn_reg_req(irn, pos);
-	(void)env; // TODO remove parameter
-
-	assert(req->type != arch_register_req_type_none || req->cls == NULL);
+	reg_out_info_t *out = get_out_info(node);
+	out->reg = reg;
+}
 
-	return req->cls;
+const arch_register_req_t *arch_get_irn_register_req(const ir_node *node)
+{
+	reg_out_info_t *out = get_out_info(node);
+	return out->req;
 }
 
-extern const arch_register_t *
-arch_get_irn_register(const arch_env_t *env, const ir_node *irn)
+arch_irn_class_t arch_irn_classify(const ir_node *node)
 {
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
-	return ops->get_irn_reg(irn);
+	const arch_irn_ops_t *ops = get_irn_ops(node);
+	return ops->classify(node);
 }
 
-extern void arch_set_irn_register(const arch_env_t *env,
-    ir_node *irn, const arch_register_t *reg)
+arch_irn_flags_t arch_get_irn_flags(const ir_node *node)
 {
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
-	ops->set_irn_reg(irn, reg);
+	backend_info_t *info;
+	if (is_Proj(node))
+		return arch_irn_flags_not_scheduled;
+
+	info = be_get_info(node);
+	return info->flags;
 }
 
-extern arch_irn_class_t arch_irn_classify(const arch_env_t *env, const ir_node *irn)
+void arch_set_irn_flags(ir_node *node, arch_irn_flags_t flags)
 {
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
-	return ops->classify(irn);
+	backend_info_t *info;
+
+	/* setting flags is only supported for instructions currently.
+	 * (mainly because we found no use for it yet and saved the space for
+	 * be_infos for them */
+	assert(!is_Proj(node));
+	info = be_get_info(node);
+	info->flags = flags;
 }
 
-extern arch_irn_flags_t arch_irn_get_flags(const arch_env_t *env, const ir_node *irn)
+void arch_add_irn_flags(ir_node *node, arch_irn_flags_t flags)
 {
-	const arch_irn_ops_t *ops = get_irn_ops(irn);
-	(void)env; // TODO remove parameter
-	return ops->get_flags(irn);
+	backend_info_t *info;
+	assert(!is_Proj(node));
+	info = be_get_info(node);
+	info->flags |= flags;
 }
 
-extern const char *arch_irn_flag_str(arch_irn_flags_t fl)
+bool arch_reg_is_allocatable(const arch_register_req_t *req,
+                             const arch_register_t *reg)
 {
-	switch(fl) {
-#define XXX(x) case arch_irn_flags_ ## x: return #x;
-		XXX(dont_spill);
-		XXX(ignore);
-		XXX(rematerializable);
-		XXX(modify_sp);
-		XXX(modify_flags);
-		XXX(none);
-#undef XXX
+	if (reg->type & arch_register_type_joker)
+		return true;
+	if (req->type == arch_register_req_type_none)
+		return false;
+	if (req->type & arch_register_req_type_limited) {
+		if (arch_register_get_class(reg) != req->cls)
+			return false;
+		return rbitset_is_set(req->limited, arch_register_get_index(reg));
 	}
-	return "n/a";
+	return req->cls == arch_register_get_class(reg);
 }
 
-extern char *arch_register_req_format(char *buf, size_t len,
-                                      const arch_register_req_t *req,
-                                      const ir_node *node)
+void arch_dump_register_req(FILE *F, const arch_register_req_t *req,
+                            const ir_node *node)
 {
-	char tmp[128];
-	snprintf(buf, len, "class: %s", req->cls->name);
+	if (req == NULL || req->type == arch_register_req_type_none) {
+		fprintf(F, "n/a");
+		return;
+	}
+
+	fprintf(F, "%s", req->cls->name);
 
-	if(arch_register_req_is(req, limited)) {
+	if (arch_register_req_is(req, limited)) {
 		unsigned n_regs = req->cls->n_regs;
 		unsigned i;
 
-		strncat(buf, " limited:", len);
-		for(i = 0; i < n_regs; ++i) {
-			if(rbitset_is_set(req->limited, i)) {
+		fprintf(F, " limited to");
+		for (i = 0; i < n_regs; ++i) {
+			if (rbitset_is_set(req->limited, i)) {
 				const arch_register_t *reg = &req->cls->regs[i];
-				strncat(buf, " ", len);
-				strncat(buf, reg->name, len);
+				fprintf(F, " %s", reg->name);
 			}
 		}
 	}
 
-	if(arch_register_req_is(req, should_be_same)) {
+	if (arch_register_req_is(req, should_be_same)) {
 		const unsigned other = req->other_same;
 		int i;
 
-		ir_snprintf(tmp, sizeof(tmp), " same to:");
+		fprintf(F, " same as");
 		for (i = 0; 1U << i <= other; ++i) {
 			if (other & (1U << i)) {
-				ir_snprintf(tmp, sizeof(tmp), " %+F", get_irn_n(skip_Proj_const(node), i));
-				strncat(buf, tmp, len);
+				ir_fprintf(F, " %+F", get_irn_n(skip_Proj_const(node), i));
 			}
 		}
 	}
@@ -327,23 +303,74 @@ extern char *arch_register_req_format(char *buf, size_t len,
 		const unsigned other = req->other_different;
 		int i;
 
-		ir_snprintf(tmp, sizeof(tmp), " different from:");
+		fprintf(F, " different from");
 		for (i = 0; 1U << i <= other; ++i) {
 			if (other & (1U << i)) {
-				ir_snprintf(tmp, sizeof(tmp), " %+F", get_irn_n(skip_Proj_const(node), i));
-				strncat(buf, tmp, len);
+				ir_fprintf(F, " %+F", get_irn_n(skip_Proj_const(node), i));
 			}
 		}
 	}
 
-	return buf;
+	if (req->width != 1) {
+		fprintf(F, " width:%d", req->width);
+	}
+	if (arch_register_req_is(req, aligned)) {
+		fprintf(F, " aligned");
+	}
+	if (arch_register_req_is(req, ignore)) {
+		fprintf(F, " ignore");
+	}
+	if (arch_register_req_is(req, produces_sp)) {
+		fprintf(F, " produces_sp");
+	}
 }
 
-static const arch_register_req_t no_requirement = {
-	arch_register_req_type_none,
-	NULL,
-	NULL,
-	0,
-	0
-};
-const arch_register_req_t *arch_no_register_req = &no_requirement;
+void arch_dump_reqs_and_registers(FILE *F, const ir_node *node)
+{
+	int              n_ins  = get_irn_arity(node);
+	int              n_outs = arch_get_irn_n_outs(node);
+	arch_irn_flags_t flags  = arch_get_irn_flags(node);
+	int              i;
+
+	for (i = 0; i < n_ins; ++i) {
+		const arch_register_req_t *req = arch_get_irn_register_req_in(node, i);
+		fprintf(F, "inreq #%d = ", i);
+		arch_dump_register_req(F, req, node);
+		fputs("\n", F);
+	}
+	for (i = 0; i < n_outs; ++i) {
+		const arch_register_req_t *req = arch_get_irn_register_req_out(node, i);
+		fprintf(F, "outreq #%d = ", i);
+		arch_dump_register_req(F, req, node);
+		fputs("\n", F);
+	}
+	for (i = 0; i < n_outs; ++i) {
+		const arch_register_t     *reg = arch_get_irn_register_out(node, i);
+		const arch_register_req_t *req = arch_get_irn_register_req_out(node, i);
+		if (req->cls == NULL)
+			continue;
+		fprintf(F, "reg #%d = %s\n", i, reg != NULL ? reg->name : "n/a");
+	}
+
+	fprintf(F, "flags =");
+	if (flags == arch_irn_flags_none) {
+		fprintf(F, " none");
+	} else {
+		if (flags & arch_irn_flags_dont_spill) {
+			fprintf(F, " unspillable");
+		}
+		if (flags & arch_irn_flags_rematerializable) {
+			fprintf(F, " remat");
+		}
+		if (flags & arch_irn_flags_modify_flags) {
+			fprintf(F, " modify_flags");
+		}
+		if (flags & arch_irn_flags_simple_jump) {
+			fprintf(F, " simple_jump");
+		}
+		if (flags & arch_irn_flags_not_scheduled) {
+			fprintf(F, " not_scheduled");
+		}
+	}
+	fprintf(F, " (%d)\n", (int)flags);
+}