-/* 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_t.h" /* the general register allocator interface */
+#include "../bearch_t.h"
#include "../benode_t.h"
#include "../belower.h"
#include "../besched_t.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"
return 0;
}
-static ir_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) {
+static
+void mips_set_frame_entity(const void *self, ir_node *irn, ir_entity *ent) {
mips_attr_t *attr = get_mips_attr(irn);
- assert(is_mips_load_r(irn) || is_mips_store_r(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) {
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;
}
/**
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();
-
- if (cg->emit_decls) {
- mips_gen_decls(out);
- cg->emit_decls = 0;
- }
+ mips_code_gen_t *cg = self;
+ ir_graph *irg = cg->irg;
- mips_gen_routine(out, irg, cg);
+ mips_gen_routine(cg, irg);
cur_reg_set = NULL;
*/
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));
+ 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 = be_get_birg_irg(birg);
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)
*/
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);
//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
//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);
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;
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