-/**
- * Processor architecture specification.
- * @author Sebastian Hack
- * @date 11.2.2005
+/*
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
*
- * $Id$
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
*/
+/**
+ * @file
+ * @brief Processor architecture specification.
+ * @author Sebastian Hack
+ * @version $Id$
+ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#ifdef HAVE_ALLOCA_H
-#include <alloca.h>
-#endif
-#ifdef HAVE_MALLOC_H
-#include <malloc.h>
-#endif
-
#include <string.h>
-#include "bearch.h"
+#include "bearch_t.h"
+#include "benode_t.h"
#include "ircons_t.h"
+#include "irnode_t.h"
#include "bitset.h"
#include "pset.h"
-#include "entity.h"
+#include "raw_bitset.h"
-arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa)
-{
- memset(env, 0, sizeof(*env));
- env->isa = isa;
- return env;
-}
+#include "irprintf.h"
-arch_env_t *arch_env_add_irn_handler(arch_env_t *env,
- const arch_irn_handler_t *handler)
+/* 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)
{
- assert(env->handlers_tos <= ARCH_MAX_HANDLERS);
- env->handlers[env->handlers_tos++] = handler;
- return env;
+ arch_env_t *arch_env = isa_if->init(file_handle);
+ arch_env->main_env = main_env;
+ return arch_env;
}
-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)
+/**
+ * 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)
{
- if(bs) {
- int i, n;
- for(i = 0, n = cls->n_regs; i < n; ++i)
- bitset_set(bs, i);
- }
-
- return cls->n_regs;
+ 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 env The arch environment with the isa stack.
* @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 arch_env_t *env, const ir_node *irn)
+static INLINE const arch_irn_ops_t *get_irn_ops(const ir_node *irn)
{
- int i;
+ const ir_op *ops;
+ const arch_irn_ops_t *be_ops;
- for(i = env->handlers_tos - 1; i >= 0; --i) {
- const arch_irn_handler_t *handler = env->handlers[i];
- const arch_irn_ops_t *ops = handler->get_irn_ops(handler, irn);
+ if (is_Proj(irn)) {
+ irn = get_Proj_pred(irn);
+ assert(!is_Proj(irn));
+ }
- if(ops)
- return ops;
- }
+ ops = get_irn_op(irn);
+ be_ops = get_op_ops(ops)->be_ops;
- return fallback_irn_ops;
+ assert(be_ops);
+ return be_ops;
}
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 ir_node *irn, int pos)
+{
+ const arch_irn_ops_t *ops = get_irn_ops(irn);
+ (void)env; // TODO remove parameter
+ return ops->get_irn_reg_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(irn);
+ (void)env; // TODO remove parameter
+ ops->set_frame_offset(irn, offset);
+}
+
+ir_entity *arch_get_frame_entity(const arch_env_t *env, 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)
+{
+ 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)
+{
+ const arch_irn_ops_t *ops = get_irn_ops(irn);
+ (void)env; // TODO remove parameter
+
+ 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) {
+ 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;
+ }
+}
+
+void arch_perform_memory_operand(const arch_env_t *env, 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) {
+ ops->perform_memory_operand(irn, spill, 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);
- return ops->get_irn_reg_req(ops, req, irn, pos);
+ const arch_irn_ops_t *ops = get_irn_ops(irn);
+ (void)env; // TODO remove parameter
+
+ if(ops->get_op_estimated_cost) {
+ return ops->get_op_estimated_cost(irn);
+ } else {
+ return 1;
+ }
}
-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)
+int arch_is_possible_memory_operand(const arch_env_t *env, const ir_node *irn, int i)
{
- 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(ops, &local_req, irn, pos);
+ 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;
+ }
+}
- 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)
+{
+ 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
- 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)) {
+ rbitset_copy_to_bitset(req->limited, 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_register_class_t *cls, bitset_t *bs)
+{
+ unsigned i;
+
+ for(i = 0; i < cls->n_regs; ++i) {
+ if(!arch_register_type_is(&cls->regs[i], ignore))
+ bitset_set(bs, i);
+ }
}
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->get_irn_reg_req(ops, &local_req, irn, pos);
- return req != NULL;
+ 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;
}
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);
+ const arch_register_req_t *req;
+
+ req = arch_get_register_req(env, irn, pos);
+
+ 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));
+ }
- arch_get_allocatable_regs(env, irn, pos, cls, 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(ops, &local_req, irn, pos);
- return req ? req->cls : NULL;
+ 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);
+
+ return req->cls;
}
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(ops, irn, idx);
+ const arch_irn_ops_t *ops = get_irn_ops(irn);
+ (void)env; // TODO remove parameter
+ return ops->get_irn_reg(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);
- assert(idx >= 0);
- ops->set_irn_reg(ops, irn, idx, reg);
+ const arch_irn_ops_t *ops = get_irn_ops(irn);
+ (void)env; // TODO remove parameter
+ ops->set_irn_reg(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(irn);
+ (void)env; // TODO remove parameter
+ return ops->classify(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(irn);
+ (void)env; // TODO remove parameter
+ return ops->get_flags(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(modify_flags);
+ XXX(none);
+#undef XXX
+ }
+ return "n/a";
+}
+
+extern char *arch_register_req_format(char *buf, size_t len,
+ const arch_register_req_t *req,
+ const ir_node *node)
+{
+ char tmp[128];
+ snprintf(buf, len, "class: %s", req->cls->name);
+
+ 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)) {
+ const arch_register_t *reg = &req->cls->regs[i];
+ strncat(buf, " ", len);
+ strncat(buf, reg->name, len);
+ }
+ }
+ }
+
+ if(arch_register_req_is(req, should_be_same)) {
+ const unsigned other = req->other_same;
+ int i;
+
+ ir_snprintf(tmp, sizeof(tmp), " same to:");
+ 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);
+ }
+ }
+ }
+
+ if (arch_register_req_is(req, must_be_different)) {
+ const unsigned other = req->other_different;
+ int i;
+
+ ir_snprintf(tmp, sizeof(tmp), " 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);
+ }
+ }
+ }
+
+ return buf;
+}
+
+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;
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