+/*
+ * 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.
+ *
+ * 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.
+ */
+
/**
- * This file implements the creation of the achitecture specific firm opcodes
- * and the coresponding node constructors for the mips assembler irg.
- * $Id$
+ * @file
+ * @brief This file implements the creation of the architecture specific firm
+ * opcodes and the corresponding node constructors for the MIPS
+ * assembler irg.
+ * @author Matthias Braun, Mehdi
+ * @version $Id$
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
-
-#ifdef _WIN32
-#include <malloc.h>
-#else
-#include <alloca.h>
-#endif
#include <stdlib.h>
#include "ircons_t.h"
#include "iropt_t.h"
#include "irop.h"
-#include "firm_common_t.h"
#include "irvrfy_t.h"
#include "irprintf.h"
+#include "xmalloc.h"
#include "../bearch.h"
* |_|
***********************************************************************************/
-/**
- * Returns a string containing the names of all registers within the limited bitset
- */
-static char *get_limited_regs(const arch_register_req_t *req, char *buf, int max) {
- bitset_t *bs = bitset_alloca(req->cls->n_regs);
- char *p = buf;
- int size = 0;
- int i, cnt;
-
- req->limited(NULL, bs);
-
- for (i = 0; i < req->cls->n_regs; i++) {
- if (bitset_is_set(bs, i)) {
- cnt = snprintf(p, max - size, " %s", req->cls->regs[i].name);
- if (cnt < 0) {
- fprintf(stderr, "dumper problem, exiting\n");
- exit(1);
- }
-
- p += cnt;
- size += cnt;
-
- if (size >= max)
- break;
- }
- }
-
- return buf;
-}
-
-/**
- * Dumps the register requirements for either in or out.
- */
-static void dump_reg_req(FILE *F, ir_node *n, const mips_register_req_t **reqs, int inout) {
- char *dir = inout ? "out" : "in";
- int max = inout ? get_mips_n_res(n) : get_irn_arity(n);
- char *buf = alloca(1024);
- int i;
-
- memset(buf, 0, 1024);
-
- if (reqs) {
- for (i = 0; i < max; i++) {
- fprintf(F, "%sreq #%d =", dir, i);
-
- if (reqs[i]->req.type == arch_register_req_type_none) {
- fprintf(F, " n/a");
- }
-
- if (reqs[i]->req.type & arch_register_req_type_normal) {
- fprintf(F, " %s", reqs[i]->req.cls->name);
- }
-
- if (reqs[i]->req.type & arch_register_req_type_limited) {
- fprintf(F, " %s", get_limited_regs(&reqs[i]->req, buf, 1024));
- }
-
- if (reqs[i]->req.type & arch_register_req_type_should_be_same) {
- ir_fprintf(F, " same as %+F", get_irn_n(n, reqs[i]->same_pos));
- }
-
- if (reqs[i]->req.type & arch_register_req_type_should_be_different) {
- ir_fprintf(F, " different from %+F", get_irn_n(n, reqs[i]->different_pos));
- }
-
- fprintf(F, "\n");
- }
-
- fprintf(F, "\n");
- }
- else {
- fprintf(F, "%sreq = N/A\n", dir);
- }
-}
-
-
/**
* Dumper interface for dumping mips nodes in vcg.
* @param n the node to dump
* @param reason indicates which kind of information should be dumped
* @return 0 on success or != 0 on failure
*/
-static int mips_dump_node(ir_node *n, FILE *F, dump_reason_t reason) {
- ir_mode *mode = NULL;
- int bad = 0;
- int i;
- mips_attr_t *attr;
- char buf[64];
- const mips_register_req_t **reqs;
- const arch_register_t **slots;
-
+static int mips_dump_node(ir_node *n, FILE *F, dump_reason_t reason)
+{
switch (reason) {
case dump_node_opcode_txt:
fprintf(F, "%s", get_irn_opname(n));
break;
case dump_node_mode_txt:
- mode = get_irn_mode(n);
-
- if (mode) {
- fprintf(F, "[%s]", get_mode_name(mode));
- }
- else {
- fprintf(F, "[?NOMODE?]");
- }
break;
case dump_node_nodeattr_txt:
- /* TODO: dump some attributes which should show up */
- /* in node name in dump (e.g. consts or the like) */
-
- break;
-
- case dump_node_info_txt:
- attr = get_mips_attr(n);
- fprintf(F, "=== mips attr begin ===\n");
-
- /* dump IN requirements */
- if (get_irn_arity(n) > 0) {
- reqs = get_mips_in_req_all(n);
- dump_reg_req(F, n, reqs, 0);
- }
-
- /* dump OUT requirements */
- if (attr->n_res > 0) {
- reqs = get_mips_out_req_all(n);
- dump_reg_req(F, n, reqs, 1);
- }
-
- /* dump assigned registers */
- slots = get_mips_slots(n);
- if (slots && attr->n_res > 0) {
- for (i = 0; i < attr->n_res; i++) {
- if (slots[i]) {
- fprintf(F, "reg #%d = %s\n", i, slots[i]->name);
+ if (is_mips_Immediate(n)) {
+ const mips_immediate_attr_t *attr
+ = get_mips_immediate_attr_const(n);
+ switch (attr->imm_type) {
+ case MIPS_IMM_CONST:
+ fprintf(F, " %ld ", attr->val);
+ break;
+ case MIPS_IMM_SYMCONST_LO:
+ fprintf(F, " lo(%s", get_entity_ld_name(attr->entity));
+ if (attr->val != 0) {
+ fprintf(F, "%+ld", attr->val);
}
- else {
- fprintf(F, "reg #%d = n/a\n", i);
+ fprintf(F, ") ");
+ break;
+ case MIPS_IMM_SYMCONST_HI:
+ fprintf(F, " hi(%s", get_entity_ld_name(attr->entity));
+ if (attr->val != 0) {
+ fprintf(F, "%+ld", attr->val);
}
+ fprintf(F, ") ");
+ break;
+ default:
+ fprintf(F, " INVALID ");
+ break;
}
}
- fprintf(F, "\n");
-
- /* dump n_res */
- fprintf(F, "n_res = %d\n", get_mips_n_res(n));
-
- /* dump flags */
- fprintf(F, "flags =");
- if (attr->flags == arch_irn_flags_none) {
- fprintf(F, " none");
- }
- else {
- if (attr->flags & arch_irn_flags_dont_spill) {
- fprintf(F, " unspillable");
- }
- if (attr->flags & arch_irn_flags_rematerializable) {
- fprintf(F, " remat");
- }
- if (attr->flags & arch_irn_flags_ignore) {
- fprintf(F, " ignore");
- }
- }
- fprintf(F, " (%d)\n", attr->flags);
-
- if(attr->modes.load_store_mode != NULL) {
- fprintf(F, " load_store_mode %s\n", get_mode_name(attr->modes.load_store_mode));
- }
- if(attr->stack_entity != NULL) {
- fprintf(F, " stack entity %s\n", get_entity_name(attr->stack_entity));
- }
- if(attr->tv != NULL) {
- tarval_snprintf(buf, sizeof(buf), attr->tv);
- fprintf(F, " tarval %s\n", buf);
- }
- if(attr->symconst_id != NULL) {
- fprintf(F, " symconst '%s'\n", get_id_str(attr->symconst_id));
- }
+ break;
- fprintf(F, "=== mips attr end ===\n");
- /* end of: case dump_node_info_txt */
+ case dump_node_info_txt:
+ arch_dump_reqs_and_registers(F, n);
break;
}
-
- return bad;
+ return 0;
}
* |___/
***************************************************************************************************/
-/**
- * Wraps get_irn_generic_attr() as it takes no const ir_node, so we need to do a cast.
- * Firm was made by people hating const :-(
- */
-mips_attr_t *get_mips_attr(const ir_node *node) {
+mips_attr_t *get_mips_attr(ir_node *node)
+{
assert(is_mips_irn(node) && "need mips node to get attributes");
- return (mips_attr_t *)get_irn_generic_attr((ir_node *)node);
+ return (mips_attr_t *) get_irn_generic_attr(node);
}
-/**
- * Returns the argument register requirements of a mips node.
- */
-const mips_register_req_t **get_mips_in_req_all(const ir_node *node) {
- mips_attr_t *attr = get_mips_attr(node);
- return attr->in_req;
+const mips_attr_t *get_mips_attr_const(const ir_node *node)
+{
+ assert(is_mips_irn(node) && "need mips node to get attributes");
+ return get_irn_generic_attr_const(node);
}
-/**
- * Returns the result register requirements of an mips node.
- */
-const mips_register_req_t **get_mips_out_req_all(const ir_node *node) {
- mips_attr_t *attr = get_mips_attr(node);
- return attr->out_req;
+const mips_immediate_attr_t *get_mips_immediate_attr_const(const ir_node *node)
+{
+ assert(is_mips_irn(node) && "need mips node to get attributes");
+ return get_irn_generic_attr_const(node);
}
-/**
- * Returns the argument register requirement at position pos of an mips node.
- */
-const mips_register_req_t *get_mips_in_req(const ir_node *node, int pos) {
- mips_attr_t *attr = get_mips_attr(node);
- return attr->in_req[pos];
+const mips_load_store_attr_t *get_mips_load_store_attr_const(
+ const ir_node *node)
+{
+ assert(is_mips_irn(node) && "need mips node to get attributes");
+ return get_irn_generic_attr_const(node);
}
/**
- * Returns the result register requirement at position pos of an mips node.
+ * Returns the argument register requirements of a mips node.
*/
-const mips_register_req_t *get_mips_out_req(const ir_node *node, int pos) {
- mips_attr_t *attr = get_mips_attr(node);
- return attr->out_req[pos];
+const arch_register_req_t **get_mips_in_req_all(const ir_node *node)
+{
+ const mips_attr_t *attr = get_mips_attr_const(node);
+ return attr->in_req;
}
/**
- * Sets the OUT register requirements at position pos.
+ * Returns the argument register requirement at position pos of an mips node.
*/
-void set_mips_req_out(ir_node *node, const mips_register_req_t *req, int pos) {
- mips_attr_t *attr = get_mips_attr(node);
- attr->out_req[pos] = req;
+const arch_register_req_t *get_mips_in_req(const ir_node *node, int pos)
+{
+ const mips_attr_t *attr = get_mips_attr_const(node);
+ return attr->in_req[pos];
}
/**
* Sets the IN register requirements at position pos.
*/
-void set_mips_req_in(ir_node *node, const mips_register_req_t *req, int pos) {
+void set_mips_req_in(ir_node *node, const arch_register_req_t *req, int pos)
+{
mips_attr_t *attr = get_mips_attr(node);
attr->in_req[pos] = req;
}
/**
- * Returns the register flag of an mips node.
- */
-arch_irn_flags_t get_mips_flags(const ir_node *node) {
- mips_attr_t *attr = get_mips_attr(node);
- return attr->flags;
-}
-
-/**
- * Sets the register flag of an mips node.
- */
-void set_mips_flags(const ir_node *node, arch_irn_flags_t flags) {
- mips_attr_t *attr = get_mips_attr(node);
- attr->flags = flags;
-}
-
-/**
- * Returns the result register slots of an mips node.
+ * Initializes the nodes attributes.
*/
-const arch_register_t **get_mips_slots(const ir_node *node) {
- mips_attr_t *attr = get_mips_attr(node);
- return attr->slots;
+static void init_mips_attributes(ir_node *node, arch_irn_flags_t flags,
+ const arch_register_req_t **in_reqs,
+ const be_execution_unit_t ***execution_units,
+ int n_res)
+{
+ ir_graph *irg = get_irn_irg(node);
+ struct obstack *obst = get_irg_obstack(irg);
+ mips_attr_t *attr = get_mips_attr(node);
+ backend_info_t *info;
+ (void) execution_units;
+
+ arch_irn_set_flags(node, flags);
+ attr->in_req = in_reqs;
+
+ info = be_get_info(node);
+ info->out_infos = NEW_ARR_D(reg_out_info_t, obst, n_res);
+ memset(info->out_infos, 0, n_res * sizeof(info->out_infos[0]));
}
-/**
- * Returns the name of the OUT register at position pos.
- */
-const char *get_mips_out_reg_name(const ir_node *node, int pos) {
- mips_attr_t *attr = get_mips_attr(node);
-
- assert(is_mips_irn(node) && "Not an mips node.");
- assert(pos < attr->n_res && "Invalid OUT position.");
- assert(attr->slots[pos] && "No register assigned");
+static void init_mips_immediate_attributes(ir_node *node,
+ mips_immediate_type_t type,
+ ir_entity *entity, long val)
+{
+ mips_immediate_attr_t *attr = get_irn_generic_attr(node);
- return arch_register_get_name(attr->slots[pos]);
+ attr->imm_type = type;
+ attr->entity = entity;
+ attr->val = val;
}
-/**
- * Returns the index of the OUT register at position pos within its register class.
- */
-int get_mips_out_regnr(const ir_node *node, int pos) {
- mips_attr_t *attr = get_mips_attr(node);
-
- assert(is_mips_irn(node) && "Not an mips node.");
- assert(pos < attr->n_res && "Invalid OUT position.");
- assert(attr->slots[pos] && "No register assigned");
-
- return arch_register_get_index(attr->slots[pos]);
+static void init_mips_load_store_attributes(ir_node *node, ir_entity *entity,
+ long offset)
+{
+ mips_load_store_attr_t *attr = get_irn_generic_attr(node);
+ attr->stack_entity = entity;
+ attr->offset = offset;
}
-/**
- * Returns the OUT register at position pos.
- */
-const arch_register_t *get_mips_out_reg(const ir_node *node, int pos) {
- mips_attr_t *attr = get_mips_attr(node);
-
- assert(is_mips_irn(node) && "Not an mips node.");
- assert(pos < attr->n_res && "Invalid OUT position.");
- assert(attr->slots[pos] && "No register assigned");
-
- return attr->slots[pos];
-}
+static int mips_compare_nodes_attr(ir_node *node_a, ir_node *node_b)
+{
+ const mips_attr_t *a = get_mips_attr_const(node_a);
+ const mips_attr_t *b = get_mips_attr_const(node_b);
-/**
- * Sets the number of results.
- */
-void set_mips_n_res(ir_node *node, int n_res) {
- mips_attr_t *attr = get_mips_attr(node);
- attr->n_res = n_res;
-}
+ if (a->switch_default_pn != b->switch_default_pn)
+ return 1;
-/**
- * Returns the number of results.
- */
-int get_mips_n_res(const ir_node *node) {
- mips_attr_t *attr = get_mips_attr(node);
- return attr->n_res;
+ return 0;
}
-/**
- * Initializes the nodes attributes.
- */
-void init_mips_attributes(ir_node *node, arch_irn_flags_t flags, const mips_register_req_t **in_reqs,
- const mips_register_req_t **out_reqs, const be_execution_unit_t **execution_units,
- int n_res, unsigned latency)
+static int mips_compare_immediate_attr(ir_node *node_a, ir_node *node_b)
{
- mips_attr_t *attr = get_mips_attr(node);
+ const mips_immediate_attr_t *a = get_mips_immediate_attr_const(node_a);
+ const mips_immediate_attr_t *b = get_mips_immediate_attr_const(node_b);
- attr->flags = flags;
- attr->out_req = out_reqs;
+ if (a->val != b->val)
+ return 1;
- attr->n_res = n_res;
- attr->in_req = in_reqs;
-
- memset((void *)attr->slots, 0, n_res * sizeof(attr->slots[0]));
+ return 0;
}
-/************************************************************************
- * ___ _____ _ _ _
- * |_ _| ___|__ | | __| (_)_ __ __ _
- * | || |_ / _ \| |/ _` | | '_ \ / _` |
- * | || _| (_) | | (_| | | | | | (_| |
- * |___|_| \___/|_|\__,_|_|_| |_|\__, |
- * |___/
- ************************************************************************/
-
-// test if a tarval can be expressed in a 16bit immediate value
-static int is_tarval_16(ir_node* node)
+static int mips_compare_load_store_attr(ir_node *node_a, ir_node *node_b)
{
- mips_attr_t *attr = get_mips_attr(node);
- tarval* tv = attr->tv;
- long val = get_tarval_long(tv);
- if(get_mode_sign(get_irn_mode(node))) {
- if(val < -32768 || val > 32767)
- return 0;
- } else {
- unsigned long uval = (unsigned long) val;
- if(uval > 65536)
- return 0;
- }
+ const mips_load_store_attr_t *a = get_mips_load_store_attr_const(node_a);
+ const mips_load_store_attr_t *b = get_mips_load_store_attr_const(node_b);
- return 1;
-}
+ if (mips_compare_nodes_attr(node_a, node_b))
+ return 1;
+ if (a->stack_entity != b->stack_entity)
+ return 1;
+ if (a->offset != b->offset)
+ return 1;
-#define MIPS_MAKE_IFOLDING_TRANSFORM(srcnode, inode, commutative) \
-ir_node *mips_transform_##srcnode(ir_node* node) \
-{ \
- ir_node* op1 = get_irn_n(node, 0); \
- ir_node* op2 = get_irn_n(node, 1); \
- ir_node* result; \
- if(op1 == NULL || op2 == NULL) \
- return node; \
- \
- if((is_mips_lli(op2) || is_mips_lui(op2)) && is_tarval_16(op2)) { \
- mips_attr_t *attr, *op_attr = get_mips_attr(op2); \
- long val = get_tarval_long(op_attr->tv); \
- result = new_rd_mips_##inode(get_irn_dbg_info(node), get_irn_irg(node), get_nodes_block(node), \
- op1, get_irn_mode(node)); \
- attr = get_mips_attr(result); \
- attr->tv = new_tarval_from_long(val, get_mode_sign(get_irn_mode(node)) ? mode_Hs : mode_Hu); \
- return result; \
- } \
- \
- if(commutative && (is_mips_lli(op1) || is_mips_lui(op1)) && is_tarval_16(op1)) { \
- mips_attr_t *attr, *op_attr = get_mips_attr(op1); \
- long val = get_tarval_long(op_attr->tv); \
- result = new_rd_mips_##inode(get_irn_dbg_info(node), get_irn_irg(node), get_nodes_block(node), \
- op2, get_irn_mode(node)); \
- attr = get_mips_attr(result); \
- attr->tv = new_tarval_from_long(val, get_mode_sign(get_irn_mode(node)) ? mode_Hs : mode_Hu); \
- return result; \
- } \
- \
- return node; \
+ return 0;
}
-MIPS_MAKE_IFOLDING_TRANSFORM(add, addi, 1)
-MIPS_MAKE_IFOLDING_TRANSFORM(and, andi, 1)
-MIPS_MAKE_IFOLDING_TRANSFORM(or, ori, 1)
-MIPS_MAKE_IFOLDING_TRANSFORM(sra, srai, 0)
-MIPS_MAKE_IFOLDING_TRANSFORM(xor, xori, 1)
-MIPS_MAKE_IFOLDING_TRANSFORM(sl, sli, 0)
-MIPS_MAKE_IFOLDING_TRANSFORM(sr, sri, 0)
-MIPS_MAKE_IFOLDING_TRANSFORM(slt, slti, 0)
-
-void mips_init_opcode_transforms(void) {
- op_mips_add->ops.transform_node = mips_transform_add;
- op_mips_and->ops.transform_node = mips_transform_and;
- op_mips_or->ops.transform_node = mips_transform_or;
- op_mips_sra->ops.transform_node = mips_transform_sra;
- op_mips_xor->ops.transform_node = mips_transform_xor;
- op_mips_sl->ops.transform_node = mips_transform_sl;
- op_mips_sr->ops.transform_node = mips_transform_sr;
- op_mips_slt->ops.transform_node = mips_transform_slt;
+static void mips_copy_attr(const ir_node *old_node , ir_node *new_node)
+{
+ ir_graph *irg = get_irn_irg(new_node);
+ struct obstack *obst = get_irg_obstack(irg);
+ const mips_attr_t *attr_old = get_mips_attr_const(old_node);
+ mips_attr_t *attr_new = get_mips_attr(new_node);
+ backend_info_t *old_info = be_get_info(old_node);
+ backend_info_t *new_info = be_get_info(new_node);
+
+ /* copy the attributes */
+ memcpy(attr_new, attr_old, get_op_attr_size(get_irn_op(old_node)));
+
+ /* copy out flags */
+ new_info->out_infos =
+ DUP_ARR_D(reg_out_info_t, obst, old_info->out_infos);
}
/***************************************************************************************
projects / libfirm / blobdiff