+/*
+ * Copyright (C) 1995-2007 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.
+ */
+
/* The main mips backend driver file. */
/* $Id$ */
-
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "bitset.h"
#include "debug.h"
-#include "../bearch.h" /* the general register allocator interface */
+#include "../bearch_t.h" /* the general register allocator interface */
#include "../benode_t.h"
#include "../belower.h"
#include "../besched_t.h"
* |___/
**************************************************/
-static ir_node *my_skip_proj(const ir_node *n) {
- while (is_Proj(n))
- n = get_Proj_pred(n);
- return (ir_node *)n;
-}
-
/**
* Return register requirements for a mips node.
* If the node returns a tuple (mode_T) then the proj's
* will be asked for this information.
*/
-static const arch_register_req_t *mips_get_irn_reg_req(const void *self, arch_register_req_t *req, const ir_node *irn, int pos) {
- const mips_register_req_t *irn_req;
+static const
+arch_register_req_t *mips_get_irn_reg_req(const void *self,
+ const ir_node *node, int pos) {
long node_pos = pos == -1 ? 0 : pos;
- ir_mode *mode = get_irn_mode(irn);
- FIRM_DBG_REGISTER(firm_dbg_module_t *mod, DEBUG_MODULE);
+ ir_mode *mode = get_irn_mode(node);
- if (is_Block(irn) || mode == mode_X || mode == mode_M) {
- DBG((mod, LEVEL_1, "ignoring mode_T, mode_M node %+F\n", irn));
- return NULL;
+ if (is_Block(node) || mode == mode_X || mode == mode_M) {
+ return arch_no_register_req;
}
if (mode == mode_T && pos < 0) {
- DBG((mod, LEVEL_1, "ignoring request for OUT requirements at %+F\n", irn));
- return NULL;
+ return arch_no_register_req;
}
- DBG((mod, LEVEL_1, "get requirements at pos %d for %+F ... ", pos, irn));
-
- if (is_Proj(irn)) {
+ if (is_Proj(node)) {
/* in case of a proj, we need to get the correct OUT slot */
/* of the node corresponding to the proj number */
if (pos == -1) {
- node_pos = mips_translate_proj_pos(irn);
+ node_pos = mips_translate_proj_pos(node);
}
else {
node_pos = pos;
}
- irn = my_skip_proj(irn);
-
- DB((mod, LEVEL_1, "skipping Proj, going to %+F at pos %d ... ", irn, node_pos));
+ node = skip_Proj_const(node);
}
/* get requirements for our own nodes */
- if (is_mips_irn(irn)) {
+ if (is_mips_irn(node)) {
+ const arch_register_req_t *req;
if (pos >= 0) {
- irn_req = get_mips_in_req(irn, pos);
- }
- else {
- irn_req = get_mips_out_req(irn, node_pos);
- }
-
- DB((mod, LEVEL_1, "returning reqs for %+F at pos %d\n", irn, pos));
-
- memcpy(req, &(irn_req->req), sizeof(*req));
-
- if (arch_register_req_is(&(irn_req->req), should_be_same)) {
- assert(irn_req->same_pos >= 0 && "should be same constraint for in -> out NYI");
- req->other_same = get_irn_n(irn, irn_req->same_pos);
+ req = get_mips_in_req(node, pos);
+ } else {
+ req = get_mips_out_req(node, node_pos);
}
- if (arch_register_req_is(&(irn_req->req), should_be_different)) {
- assert(irn_req->different_pos >= 0 && "should be different constraint for in -> out NYI");
- req->other_different = get_irn_n(irn, irn_req->different_pos);
- }
+ return req;
}
- /* get requirements for FIRM nodes */
- else {
- /* treat Phi like Const with default requirements */
- if (is_Phi(irn)) {
- DB((mod, LEVEL_1, "returning standard reqs for %+F\n", irn));
- if (mode_is_float(mode)) {
- //memcpy(req, &(mips_default_req_mips_floating_point.req), sizeof(*req));
- assert(0 && "floating point not supported (yet)");
- }
- else if (mode_is_int(mode) || mode_is_reference(mode)) {
- memcpy(req, &(mips_default_req_mips_gp.req), sizeof(*req));
- }
- else if (mode == mode_T || mode == mode_M) {
- DBG((mod, LEVEL_1, "ignoring Phi node %+F\n", irn));
- return NULL;
- }
- else {
- assert(0 && "unsupported Phi-Mode");
- }
- }
- else {
- DB((mod, LEVEL_1, "returning NULL for %+F (node not supported)\n", irn));
- req = NULL;
- }
- }
+ /* unknown should be translated by now */
+ assert(!is_Unknown(node));
- return req;
+ return arch_no_register_req;
}
static void mips_set_irn_reg(const void *self, ir_node *irn, const arch_register_t *reg) {
}
pos = mips_translate_proj_pos(irn);
- irn = my_skip_proj(irn);
+ irn = skip_Proj(irn);
}
if (is_mips_irn(irn)) {
}
pos = mips_translate_proj_pos(irn);
- irn = my_skip_proj(irn);
+ irn = skip_Proj_const(irn);
}
if (is_mips_irn(irn)) {
}
static arch_irn_class_t mips_classify(const void *self, const ir_node *irn) {
- irn = my_skip_proj(irn);
+ irn = skip_Proj_const(irn);
if (is_cfop(irn)) {
return arch_irn_class_branch;
}
static arch_irn_flags_t mips_get_flags(const void *self, const ir_node *irn) {
- irn = my_skip_proj(irn);
+ irn = skip_Proj_const(irn);
if (is_mips_irn(irn)) {
return get_mips_flags(irn);
* Initializes the code generator.
*/
static void *mips_cg_init(be_irg_t *birg) {
- mips_isa_t *isa = (mips_isa_t *)birg->main_env->arch_env->isa;
+ const arch_env_t *arch_env = be_get_birg_arch_env(birg);
+ mips_isa_t *isa = (mips_isa_t *) arch_env->isa;
mips_code_gen_t *cg = xmalloc(sizeof(*cg));
cg->impl = &mips_code_gen_if;
- cg->irg = birg->irg;
+ cg->irg = be_get_birg_irg(birg);
cg->reg_set = new_set(mips_cmp_irn_reg_assoc, 1024);
- cg->arch_env = birg->main_env->arch_env;
+ cg->arch_env = arch_env;
cg->isa = isa;
cg->birg = birg;
cg->bl_list = NULL;
initialstackframesize = 24;
// - setup first part of stackframe
- sp = new_rd_mips_addi(dbg, irg, block, sp, mode_Is);
+ sp = new_rd_mips_addiu(dbg, irg, block, sp);
attr = get_mips_attr(sp);
attr->tv = new_tarval_from_long(-initialstackframesize, mode_Is);
mips_set_irn_reg(NULL, sp, &mips_gp_regs[REG_SP]);
initialstackframesize = 4;
// save old framepointer
- sp = new_rd_mips_addi(dbg, irg, block, sp, mode_Is);
+ sp = new_rd_mips_addiu(dbg, irg, block, sp);
attr = get_mips_attr(sp);
attr->tv = new_tarval_from_long(-initialstackframesize, mode_Is);
mips_set_irn_reg(NULL, sp, &mips_gp_regs[REG_SP]);
}
// setup framepointer
- fp = new_rd_mips_addi(dbg, irg, block, sp, mode_Is);
+ fp = new_rd_mips_addiu(dbg, irg, block, sp);
attr = get_mips_attr(fp);
attr->tv = new_tarval_from_long(initialstackframesize, mode_Is);
mips_set_irn_reg(NULL, fp, &mips_gp_regs[REG_FP]);
int fp_save_offset = env->debug ? 16 : 0;
// copy fp to sp
- sp = new_rd_mips_move(dbg, irg, block, fp, mode_Iu);
+ sp = new_rd_mips_move(dbg, irg, block, fp);
mips_set_irn_reg(NULL, sp, &mips_gp_regs[REG_SP]);
//arch_set_irn_register(mips_get_arg_env(), fp, &mips_gp_regs[REG_SP]);
projects / libfirm / blobdiff