X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbearch.c;h=040379b5646cf89ed3bc5b2e8a44fde88c140186;hb=cbfbedae75798a9830fb0ef090189345ede85dc8;hp=225a0e035e6fbdd367dd0c71e8557b7ae7b127c0;hpb=59ff3e464ab5bfb648b0b8c892be8abd19efb07a;p=libfirm

diff --git a/ir/be/bearch.c b/ir/be/bearch.c
index 225a0e035..040379b56 100644
--- a/ir/be/bearch.c
+++ b/ir/be/bearch.c
@@ -5,6 +5,7 @@
  *
  * $Id$
  */
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -12,6 +13,7 @@
 #ifdef HAVE_ALLOCA_H
 #include <alloca.h>
 #endif
+
 #ifdef HAVE_MALLOC_H
 #include <malloc.h>
 #endif
@@ -20,19 +22,23 @@
 
 #include "bearch.h"
 #include "ircons_t.h"
+#include "irnode_t.h"
 
 #include "bitset.h"
 #include "pset.h"
 #include "entity.h"
 
-arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa)
+#include "irprintf.h"
+
+/* Initialize the architecture environment struct. */
+arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa_if, FILE *file_handle)
 {
   memset(env, 0, sizeof(*env));
-  env->isa = isa;
+  env->isa = isa_if->init(file_handle);
   return env;
 }
 
-arch_env_t *arch_env_add_irn_handler(arch_env_t *env,
+arch_env_t *arch_env_push_irn_handler(arch_env_t *env,
     const arch_irn_handler_t *handler)
 {
   assert(env->handlers_tos <= ARCH_MAX_HANDLERS);
@@ -40,9 +46,15 @@ arch_env_t *arch_env_add_irn_handler(arch_env_t *env,
   return env;
 }
 
+const arch_irn_handler_t *arch_env_pop_irn_handler(arch_env_t *env)
+{
+  assert(env->handlers_tos > 0 && env->handlers_tos <= ARCH_MAX_HANDLERS);
+  return env->handlers[--env->handlers_tos];
+}
+
 static const arch_irn_ops_t *fallback_irn_ops = NULL;
 
-int arch_register_class_put(const arch_register_class_t *cls, struct _bitset_t *bs)
+int arch_register_class_put(const arch_register_class_t *cls, bitset_t *bs)
 {
   if(bs) {
     int i, n;
@@ -65,7 +77,9 @@ get_irn_ops(const arch_env_t *env, const ir_node *irn)
   int i;
 
   for(i = env->handlers_tos - 1; i >= 0; --i) {
-    const arch_irn_ops_t *ops = env->handlers[i]->get_irn_ops(irn);
+    const arch_irn_handler_t *handler = env->handlers[i];
+    const arch_irn_ops_t *ops = handler->get_irn_ops(handler, irn);
+
     if(ops)
       return ops;
   }
@@ -73,58 +87,229 @@ get_irn_ops(const arch_env_t *env, const ir_node *irn)
   return fallback_irn_ops;
 }
 
-int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn,
-    int pos, const arch_register_class_t *cls, bitset_t *bs)
+const arch_irn_ops_t *arch_get_irn_ops(const arch_env_t *env, const ir_node *irn) {
+	return get_irn_ops(env, irn);
+}
+
+const arch_register_req_t *arch_get_register_req(const arch_env_t *env,
+    arch_register_req_t *req, const ir_node *irn, int pos)
+{
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  req->type = arch_register_req_type_none;
+  return ops->impl->get_irn_reg_req(ops, req, irn, pos);
+}
+
+void arch_set_frame_offset(const arch_env_t *env, ir_node *irn, int offset)
+{
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  ops->impl->set_frame_offset(ops, irn, offset);
+}
+
+entity *arch_get_frame_entity(const arch_env_t *env, ir_node *irn)
+{
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  return ops->impl->get_frame_entity(ops, irn);
+}
+
+void arch_set_frame_entity(const arch_env_t *env, ir_node *irn, entity *ent)
+{
+	const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+	ops->impl->set_frame_entity(ops, irn, ent);
+}
+
+arch_inverse_t *arch_get_inverse(const arch_env_t *env, const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obstack)
+{
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  if(ops->impl->get_inverse) {
+    return ops->impl->get_inverse(ops, irn, i, inverse, obstack);
+  } else {
+    return NULL;
+  }
+}
+
+int arch_possible_memory_operand(const arch_env_t *env, const ir_node *irn, unsigned int i) {
+	const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+	if(ops->impl->possible_memory_operand) {
+		return ops->impl->possible_memory_operand(ops, irn, i);
+	} else {
+		return 0;
+	}
+}
+
+extern void arch_perform_memory_operand(const arch_env_t *env, ir_node *irn, ir_node *reload, unsigned int i) {
+	const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+	if(ops->impl->perform_memory_operand) {
+		ops->impl->perform_memory_operand(ops, irn, reload, i);
+	} else {
+		return;
+	}
+}
+
+int arch_get_op_estimated_cost(const arch_env_t *env, const ir_node *irn)
+{
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  if(ops->impl->get_op_estimated_cost) {
+    return ops->impl->get_op_estimated_cost(ops, irn);
+  } else {
+    return 1;
+  }
+}
+
+int arch_is_possible_memory_operand(const arch_env_t *env, const ir_node *irn, int i)
 {
   const arch_irn_ops_t *ops = get_irn_ops(env, irn);
-  const arch_register_req_t *req = ops->get_irn_reg_req(irn, pos);
+  if(ops->impl->possible_memory_operand) {
+    return ops->impl->possible_memory_operand(ops, irn, i);
+  } else {
+    return 0;
+  }
+}
 
-  switch(req->type) {
-    case arch_register_req_type_normal:
-      arch_register_class_put(req->cls, bs);
-      return req->cls->n_regs;
+int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, int pos, bitset_t *bs)
+{
+  arch_register_req_t local_req;
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  const arch_register_req_t *req = ops->impl->get_irn_reg_req(ops, &local_req, irn, pos);
 
-    case arch_register_req_type_limited:
-      return req->data.limited(irn, pos, bs);
+  if(req->type == arch_register_req_type_none) {
+	  bitset_clear_all(bs);
+	  return 0;
+  }
 
-    default:
-      assert(0 && "This register requirement case is not covered");
+  if(arch_register_req_is(req, limited)) {
+	  req->limited(req->limited_env, bs);
+	  return bitset_popcnt(bs);
   }
 
-  return 0;
+  arch_register_class_put(req->cls, bs);
+  return req->cls->n_regs;
+}
+
+void arch_put_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls, bitset_t *bs)
+{
+	int i;
+
+	for(i = 0; i < cls->n_regs; ++i) {
+		if(!arch_register_type_is(&cls->regs[i], ignore))
+			bitset_set(bs, i);
+	}
+}
+
+int arch_count_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls)
+{
+	int i;
+	int result = 0;
+
+	for(i = 0; i < cls->n_regs; ++i) {
+		if(!arch_register_type_is(&cls->regs[i], ignore))
+			result++;
+	}
+
+	return result;
+}
+
+int arch_is_register_operand(const arch_env_t *env,
+    const ir_node *irn, int pos)
+{
+	arch_register_req_t local_req;
+	const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+	const arch_register_req_t *req = ops->impl->get_irn_reg_req(ops, &local_req, irn, pos);
+	return req != NULL;
 }
 
 int arch_reg_is_allocatable(const arch_env_t *env, const ir_node *irn,
     int pos, const arch_register_t *reg)
 {
-  const arch_register_class_t *cls = arch_register_get_class(reg);
-  int n_regs = arch_register_class_n_regs(cls);
-  bitset_t *bs = bitset_alloca(n_regs);
+	arch_register_req_t req;
+
+	arch_get_register_req(env, &req, irn, pos);
+
+	if(req.type == arch_register_req_type_none)
+		return 0;
 
-  arch_get_allocatable_regs(env, irn, pos, cls, bs);
-  return bitset_is_set(bs, arch_register_get_index(reg));
+	if(arch_register_req_is(&req, limited)) {
+		bitset_t *bs = bitset_alloca(req.cls->n_regs);
+		req.limited(req.limited_env, bs);
+		return bitset_is_set(bs, arch_register_get_index(reg));
+	}
+
+	return req.cls == reg->reg_class;
 }
 
 const arch_register_class_t *
 arch_get_irn_reg_class(const arch_env_t *env, const ir_node *irn, int pos)
 {
+  arch_register_req_t local_req;
   const arch_irn_ops_t *ops = get_irn_ops(env, irn);
-  const arch_register_req_t *req = ops->get_irn_reg_req(irn, pos);
+  const arch_register_req_t *req = ops->impl->get_irn_reg_req(ops, &local_req, irn, pos);
   return req ? req->cls : NULL;
 }
 
 extern const arch_register_t *
-arch_get_irn_register(const arch_env_t *env, const ir_node *irn, int idx)
+arch_get_irn_register(const arch_env_t *env, const ir_node *irn)
 {
   const arch_irn_ops_t *ops = get_irn_ops(env, irn);
-  assert(idx >= 0);
-  return ops->get_irn_reg(irn, idx);
+  return ops->impl->get_irn_reg(ops, irn);
 }
 
 extern void arch_set_irn_register(const arch_env_t *env,
-    ir_node *irn, int idx, const arch_register_t *reg)
+    ir_node *irn, const arch_register_t *reg)
+{
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  ops->impl->set_irn_reg(ops, irn, reg);
+}
+
+extern arch_irn_class_t arch_irn_classify(const arch_env_t *env, const ir_node *irn)
 {
   const arch_irn_ops_t *ops = get_irn_ops(env, irn);
-  assert(idx >= 0);
-  ops->set_irn_reg(irn, idx, reg);
+  return ops->impl->classify(ops, irn);
+}
+
+extern arch_irn_flags_t arch_irn_get_flags(const arch_env_t *env, const ir_node *irn)
+{
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  return ops->impl->get_flags(ops, irn);
+}
+
+extern const char *arch_irn_flag_str(arch_irn_flags_t fl)
+{
+	switch(fl) {
+#define XXX(x) case arch_irn_flags_ ## x: return #x;
+		XXX(dont_spill);
+		XXX(ignore);
+		XXX(rematerializable);
+		XXX(modify_sp);
+		XXX(none);
+#undef XXX
+	}
+	return "n/a";
+}
+
+extern char *arch_register_req_format(char *buf, size_t len, const arch_register_req_t *req)
+{
+	char tmp[128];
+	snprintf(buf, len, "class: %s", req->cls->name);
+
+	if(arch_register_req_is(req, limited)) {
+		bitset_pos_t elm;
+		bitset_t *bs = bitset_alloca(req->cls->n_regs);
+		req->limited(req->limited_env, bs);
+		strncat(buf, " limited:", len);
+		bitset_foreach(bs, elm) {
+			strncat(buf, " ", len);
+			strncat(buf, req->cls->regs[elm].name, len);
+		}
+	}
+
+	if(arch_register_req_is(req, should_be_same)) {
+		ir_snprintf(tmp, sizeof(tmp), " same to: %+F", req->other_different);
+		strncat(buf, tmp, len);
+	}
+
+	if(arch_register_req_is(req, should_be_different)) {
+		ir_snprintf(tmp, sizeof(tmp), " different to: %+F", req->other_different);
+		strncat(buf, tmp, len);
+	}
+
+	return buf;
 }