-/* The main mips backend driver file. */
-/* $Id$ */
+/*
+ * 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.
+ */
+/**
+ * @file
+ * @brief The main mips backend driver file.
+ * @author Matthias Braun, Mehdi
+ * @version $Id$
+ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "iredges.h"
#include "irdump.h"
#include "irextbb.h"
+#include "error.h"
#include "bitset.h"
#include "debug.h"
-#include "../bearch.h" /* the general register allocator interface */
+#include "../bearch_t.h"
#include "../benode_t.h"
#include "../belower.h"
#include "../besched_t.h"
#include "../be.h"
#include "../beabi.h"
+#include "../bemachine.h"
+#include "../bemodule.h"
+#include "../bespillslots.h"
+#include "../beemitter.h"
+#include "../begnuas.h"
#include "bearch_mips_t.h"
-#include "mips_new_nodes.h" /* mips nodes interface */
-#include "gen_mips_regalloc_if.h" /* the generated interface (register type and class defenitions) */
-#include "mips_gen_decls.h" /* interface declaration emitter */
+#include "mips_new_nodes.h"
+#include "gen_mips_regalloc_if.h"
#include "mips_transform.h"
#include "mips_emitter.h"
#include "mips_map_regs.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);
return 0;
}
-static entity *mips_get_frame_entity(const void *self, const ir_node *irn) {
- if(is_mips_load_r(irn) || is_mips_store_r(irn)) {
- mips_attr_t *attr = get_mips_attr(irn);
+static
+ir_entity *mips_get_frame_entity(const void *self, const ir_node *node) {
+ mips_attr_t *attr;
- return attr->stack_entity;
- }
+ if(!is_mips_irn(node))
+ return NULL;
- return NULL;
+ attr = get_mips_attr(node);
+ return attr->stack_entity;
+}
+
+static
+void mips_set_frame_entity(const void *self, ir_node *irn, ir_entity *ent) {
+ mips_attr_t *attr = get_mips_attr(irn);
+ attr->stack_entity = ent;
}
/**
* This function is called by the generic backend to correct offsets for
* nodes accessing the stack.
*/
-static void mips_set_frame_offset(const void *self, ir_node *irn, int offset) {
+static void mips_set_frame_offset(const void *self, ir_node *irn, int offset)
+{
+ panic("TODO");
+#if 0
mips_attr_t *attr = get_mips_attr(irn);
- assert(is_mips_load_r(irn) || is_mips_store_r(irn));
-
attr->stack_entity_offset = offset;
+#endif
+}
+
+static int mips_get_sp_bias(const void *self, const ir_node *irn) {
+ return 0;
}
/* fill register allocator interface */
mips_classify,
mips_get_flags,
mips_get_frame_entity,
+ mips_set_frame_entity,
mips_set_frame_offset,
- NULL
+ mips_get_sp_bias,
+ NULL, /* get_inverse */
+ NULL, /* get_op_estimated_cost */
+ NULL, /* possible_memory_operand */
+ NULL, /* perform_memory_operand */
};
mips_irn_ops_t mips_irn_ops = {
cg->bl_list = bl_list;
}
+#if 0
typedef struct _wenv_t {
ir_node *list;
} wenv_t;
wenv->list = node;
}
}
+#endif
static void replace_copyb_nodes(mips_code_gen_t *cg) {
+#if 0
wenv_t env;
ir_node *copy, *next;
ir_node *old_bl, *new_bl, *jmp, *new_jmp, *mem;
}
}
}
+#endif
+ (void) cg;
}
/**
/**
* Called immediately before emit phase.
*/
-static void mips_finish_irg(ir_graph *irg, mips_code_gen_t *cg) {
- /* TODO: - fix offsets for nodes accessing stack
- - ...
- */
+static void mips_finish_irg(void *self) {
+ mips_code_gen_t *cg = self;
+ ir_graph *irg = cg->irg;
+
+ dump_ir_block_graph_sched(irg, "-mips-finished");
}
static void mips_after_ra(void* self) {
mips_code_gen_t *cg = self;
+ be_coalesce_spillslots(cg->birg);
irg_walk_blkwise_graph(cg->irg, NULL, mips_after_ra_walker, self);
}
* the code generator interface.
*/
static void mips_emit_and_done(void *self) {
- mips_code_gen_t *cg = self;
- ir_graph *irg = cg->irg;
- FILE *out = cg->isa->out;
-
- mips_register_emitters();
+ mips_code_gen_t *cg = self;
+ ir_graph *irg = cg->irg;
- if (cg->emit_decls) {
- mips_gen_decls(out);
- cg->emit_decls = 0;
- }
-
- mips_finish_irg(irg, cg);
- dump_ir_block_graph_sched(irg, "-mips-finished");
- mips_gen_routine(out, irg, cg);
+ mips_gen_routine(cg, irg);
cur_reg_set = NULL;
free(cg);
}
-static void *mips_cg_init(const be_irg_t *birg);
+static void *mips_cg_init(be_irg_t *birg);
static const arch_code_generator_if_t mips_code_gen_if = {
mips_cg_init,
NULL, /* before abi introduce */
mips_prepare_graph,
+ NULL, /* spill */
mips_before_sched, /* before scheduling hook */
mips_before_ra, /* before register allocation hook */
mips_after_ra,
+ mips_finish_irg,
mips_emit_and_done
};
/**
* Initializes the code generator.
*/
-static void *mips_cg_init(const be_irg_t *birg) {
- mips_isa_t *isa = (mips_isa_t *)birg->main_env->arch_env->isa;
- mips_code_gen_t *cg = xmalloc(sizeof(*cg));
+static void *mips_cg_init(be_irg_t *birg) {
+ 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;
- FIRM_DBG_REGISTER(cg->mod, "firm.be.mips.cg");
-
- isa->num_codegens++;
-
- if (isa->num_codegens > 1)
- cg->emit_decls = 0;
- else
- cg->emit_decls = 1;
cur_reg_set = cg->reg_set;
*****************************************************************/
static mips_isa_t mips_isa_template = {
- &mips_isa_if,
- &mips_gp_regs[REG_SP],
- &mips_gp_regs[REG_FP],
- -1, // stack direction
- 0, // num codegens?!? TODO what is this?
- NULL
+ {
+ &mips_isa_if,
+ &mips_gp_regs[REG_SP],
+ &mips_gp_regs[REG_FP],
+ -1, /* stack direction */
+ NULL, /* main environment */
+ 7, /* spill costs */
+ 5, /* reload costs */
+ },
+ { NULL, }, /* emitter environment */
};
/**
if(inited)
return NULL;
+ inited = 1;
- isa = xcalloc(1, sizeof(*isa));
- memcpy(isa, &mips_isa_template, sizeof(*isa));
+ isa = xcalloc(1, sizeof(isa[0]));
+ memcpy(isa, &mips_isa_template, sizeof(isa[0]));
- isa->out = file_handle;
+ be_emit_init_env(&isa->emit, file_handle);
mips_register_init(isa);
mips_create_opcodes();
- mips_init_opcode_transforms();
+ // mips_init_opcode_transforms();
- inited = 1;
+ /* we mark referenced global entities, so we can only emit those which
+ * are actually referenced. (Note: you mustn't use the type visited flag
+ * elsewhere in the backend)
+ */
+ inc_master_type_visited();
return isa;
}
* Closes the output file and frees the ISA structure.
*/
static void mips_done(void *self) {
- free(self);
+ mips_isa_t *isa = self;
+
+ be_gas_emit_decls(&isa->emit, isa->arch_isa.main_env, 1);
+
+ be_emit_destroy_env(&isa->emit);
+ free(isa);
}
static int mips_get_n_reg_class(const void *self) {
typedef struct {
be_abi_call_flags_bits_t flags;
- const mips_isa_t *isa;
+ const arch_isa_t *isa;
const arch_env_t *arch_env;
ir_graph *irg;
// do special handling to support debuggers
{
mips_abi_env_t *env = xmalloc(sizeof(env[0]));
be_abi_call_flags_t fl = be_abi_call_get_flags(call);
- env->flags = fl.bits;
- env->irg = irg;
- env->arch_env = arch_env;
- env->isa = (const mips_isa_t*) arch_env->isa;
- env->debug = 1;
+ env->flags = fl.bits;
+ env->irg = irg;
+ env->arch_env = arch_env;
+ env->isa = arch_env->isa;
+ env->debug = 1;
return env;
}
static void mips_abi_dont_save_regs(void *self, pset *s)
{
mips_abi_env_t *env = self;
+
if(env->flags.try_omit_fp)
- pset_insert_ptr(s, env->isa->fp);
+ pset_insert_ptr(s, env->isa->bp);
}
static const arch_register_t *mips_abi_prologue(void *self, ir_node** mem, pmap *reg_map)
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]);
*/
reg = be_abi_reg_map_get(reg_map, &mips_gp_regs[REG_FP]);
- store = new_rd_mips_store_r(dbg, irg, block, *mem, sp, reg, mode_T);
+ store = new_rd_mips_sw(dbg, irg, block, *mem, sp, reg);
attr = get_mips_attr(store);
- attr->modes.load_store_mode = mode_Iu;
- attr->tv = new_tarval_from_long(16, mode_Is);
+ attr->tv = new_tarval_from_long(16, mode_Hs);
- mm[4] = new_r_Proj(irg, block, store, mode_M, pn_Store_M);
+ mm[4] = store;
reg = be_abi_reg_map_get(reg_map, &mips_gp_regs[REG_RA]);
- store = new_rd_mips_store_r(dbg, irg, block, *mem, sp, reg, mode_T);
+ store = new_rd_mips_sw(dbg, irg, block, *mem, sp, reg);
attr = get_mips_attr(store);
- attr->modes.load_store_mode = mode_Iu;
- attr->tv = new_tarval_from_long(20, mode_Is);
+ attr->tv = new_tarval_from_long(20, mode_Hs);
- mm[5] = new_r_Proj(irg, block, store, mode_M, pn_Store_M);
+ mm[5] = store;
// TODO ideally we would route these mem edges directly towards the epilogue
sync = new_r_Sync(irg, block, 2, mm+4);
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]);
//arch_set_irn_register(mips_get_arg_env(), sp, &mips_gp_regs[REG_SP]);
reg = be_abi_reg_map_get(reg_map, &mips_gp_regs[REG_FP]);
- store = new_rd_mips_store_r(dbg, irg, block, *mem, sp, reg, mode_T);
+ store = new_rd_mips_sw(dbg, irg, block, *mem, sp, reg);
attr = get_mips_attr(store);
- attr->modes.load_store_mode = mode_Iu;
- attr->tv = new_tarval_from_long(0, mode_Is);
+ attr->tv = new_tarval_from_long(0, mode_Hs);
- *mem = new_r_Proj(irg, block, store, mode_M, pn_Store_M);
+ *mem = store;
}
// 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 initial_frame_size = env->debug ? 24 : 4;
int fp_save_offset = env->debug ? 16 : 0;
- // restore sp
- //sp = be_new_IncSP(&mips_gp_regs[REG_SP], irg, block, sp, *mem, BE_STACK_FRAME_SIZE, be_stack_dir_against);
-
// 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]);
// 1. restore fp
- load = new_rd_mips_load_r(dbg, irg, block, *mem, sp, mode_T);
+ load = new_rd_mips_lw(dbg, irg, block, *mem, sp);
attr = get_mips_attr(load);
- attr->modes.load_store_mode = mode_Iu;
// sp is at the fp address already, so we have to do fp_save_offset - initial_frame_size
- attr->tv = new_tarval_from_long(fp_save_offset - initial_frame_size, mode_Is);
+ attr->tv = new_tarval_from_long(fp_save_offset - initial_frame_size, mode_Hs);
- fp = new_r_Proj(irg, block, load, mode_Iu, pn_Load_res);
- mips_set_irn_reg(NULL, fp, &mips_gp_regs[REG_FP]);
- //arch_set_irn_register(mips_get_arg_env(), fp, &mips_gp_regs[REG_FP]);
+ fp = new_r_Proj(irg, block, load, mode_Iu, pn_mips_lw_res);
+ *mem = new_r_Proj(irg, block, load, mode_Iu, pn_mips_lw_M);
+ arch_set_irn_register(env->arch_env, fp, &mips_gp_regs[REG_FP]);
be_abi_reg_map_set(reg_map, &mips_gp_regs[REG_FP], fp);
be_abi_reg_map_set(reg_map, &mips_gp_regs[REG_SP], sp);
static ir_type *debug_between_type = NULL;
static ir_type *opt_between_type = NULL;
- static entity *old_fp_ent = NULL;
+ static ir_entity *old_fp_ent = NULL;
if(env->debug && debug_between_type == NULL) {
- entity *a0_ent, *a1_ent, *a2_ent, *a3_ent;
- entity *ret_addr_ent;
+ ir_entity *a0_ent, *a1_ent, *a2_ent, *a3_ent;
+ ir_entity *ret_addr_ent;
ir_type *ret_addr_type = new_type_primitive(new_id_from_str("return_addr"), mode_P);
ir_type *old_fp_type = new_type_primitive(new_id_from_str("fp"), mode_P);
ir_type *old_param_type = new_type_primitive(new_id_from_str("param"), mode_Iu);
old_fp_ent = new_entity(debug_between_type, new_id_from_str("old_fp"), old_fp_type);
ret_addr_ent = new_entity(debug_between_type, new_id_from_str("ret_addr"), ret_addr_type);
- set_entity_offset_bytes(a0_ent, 0);
- set_entity_offset_bytes(a1_ent, 4);
- set_entity_offset_bytes(a2_ent, 8);
- set_entity_offset_bytes(a3_ent, 12);
- set_entity_offset_bytes(old_fp_ent, 16);
- set_entity_offset_bytes(ret_addr_ent, 20);
+ set_entity_offset(a0_ent, 0);
+ set_entity_offset(a1_ent, 4);
+ set_entity_offset(a2_ent, 8);
+ set_entity_offset(a3_ent, 12);
+ set_entity_offset(old_fp_ent, 16);
+ set_entity_offset(ret_addr_ent, 20);
set_type_size_bytes(debug_between_type, 24);
} else if(!env->debug && opt_between_type == NULL) {
ir_type *old_fp_type = new_type_primitive(new_id_from_str("fp"), mode_P);
- entity *old_fp_ent;
+ ir_entity *old_fp_ent;
opt_between_type = new_type_class(new_id_from_str("mips_between_type"));
old_fp_ent = new_entity(opt_between_type, new_id_from_str("old_fp"), old_fp_type);
- set_entity_offset_bytes(old_fp_ent, 0);
+ set_entity_offset(old_fp_ent, 0);
set_type_size_bytes(opt_between_type, 4);
}
return get_mode_size_bytes(mode);
}
+static const be_execution_unit_t ***mips_get_allowed_execution_units(const void *self, const ir_node *irn) {
+ /* TODO */
+ assert(0);
+ return NULL;
+}
+
+static const be_machine_t *mips_get_machine(const void *self) {
+ /* TODO */
+ assert(0);
+ return NULL;
+}
+
+/**
+ * Return irp irgs in the desired order.
+ */
+static ir_graph **mips_get_irg_list(const void *self, ir_graph ***irg_list) {
+ return NULL;
+}
+
+/**
+ * Called by the frontend to encode a register name into a backend specific way
+ */
+static unsigned mips_register_from_name(const char *regname) {
+ /* NYI */
+ return 0;
+}
+
/**
* Returns the libFirm configuration parameter for this backend.
*/
32, /* Mulhs & Mulhu available for 32 bit */
};
static backend_params p = {
+ 1, /* need dword lowering */
+ 0, /* don't support inlien assembler yet */
NULL, /* no additional opcodes */
NULL, /* will be set later */
- 1, /* need dword lowering */
NULL, /* but yet no creator function */
NULL, /* context for create_intrinsic_fkt */
+ mips_register_from_name, /* register names */
};
p.dep_param = &ad;
return &p;
}
-#ifdef WITH_LIBCORE
-static void mips_register_options(lc_opt_entry_t *ent)
-{
-}
-#endif /* WITH_LIBCORE */
-
const arch_isa_if_t mips_isa_if = {
mips_init,
mips_done,
mips_get_irn_handler,
mips_get_code_generator_if,
mips_get_list_sched_selector,
+ mips_get_ilp_sched_selector,
mips_get_reg_class_alignment,
mips_get_libfirm_params,
-#ifdef WITH_LIBCORE
- mips_register_options
-#endif
+ mips_get_allowed_execution_units,
+ mips_get_machine,
+ mips_get_irg_list,
};
+
+void be_init_arch_mips(void)
+{
+ be_register_isa_if("mips", &mips_isa_if);
+}
+
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_arch_mips);
projects / libfirm / blobdiff