* @author Christian Wuerdig
* @version $Id$
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include "lc_opts.h"
#include "lc_opts_enum.h"
#include "../begnuas.h"
#include "../bestate.h"
#include "../beflags.h"
+#include "../betranshlp.h"
#include "bearch_ia32_t.h"
#ifdef FIRM_GRGEN_BE
#include "ia32_pbqp_transform.h"
+
+transformer_t be_transformer = TRANSFORMER_DEFAULT;
#endif
DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
typedef ir_node *(*create_const_node_func) (dbg_info *dbg, ir_graph *irg, ir_node *block);
-static INLINE ir_node *create_const(ia32_code_gen_t *cg, ir_node **place,
+static inline ir_node *create_const(ia32_code_gen_t *cg, ir_node **place,
create_const_node_func func,
const arch_register_t* reg)
{
block = get_irg_start_block(cg->irg);
res = func(NULL, cg->irg, block);
- arch_set_irn_register(cg->arch_env, res, reg);
+ arch_set_irn_register(res, reg);
*place = res;
add_irn_dep(get_irg_end(cg->irg), res);
*/
static ir_node *ia32_get_admissible_noreg(ia32_code_gen_t *cg, ir_node *irn, int pos)
{
- const arch_register_req_t *req;
+ const arch_register_req_t *req = arch_get_register_req(irn, pos);
- req = arch_get_register_req(cg->arch_env, irn, pos);
assert(req != NULL && "Missing register requirements");
if (req->cls == &ia32_reg_classes[CLASS_ia32_gp])
return ia32_new_NoReg_gp(cg);
static const arch_register_t *ia32_get_irn_reg(const ir_node *irn)
{
int pos = 0;
- const arch_register_t *reg = NULL;
if (is_Proj(irn)) {
-
if (get_irn_mode(irn) == mode_X) {
return NULL;
}
}
if (is_ia32_irn(irn)) {
- const arch_register_t **slots;
- slots = get_ia32_slots(irn);
+ const arch_register_t **slots = get_ia32_slots(irn);
assert(pos < get_ia32_n_res(irn));
- reg = slots[pos];
+ return slots[pos];
} else {
- reg = ia32_get_firm_reg(irn, cur_reg_set);
+ return ia32_get_firm_reg(irn, cur_reg_set);
}
-
- return reg;
}
static arch_irn_class_t ia32_classify(const ir_node *irn) {
- arch_irn_class_t classification = arch_irn_class_normal;
+ arch_irn_class_t classification = 0;
irn = skip_Proj_const(irn);
classification |= arch_irn_class_branch;
if (! is_ia32_irn(irn))
- return classification & ~arch_irn_class_normal;
-
- if (is_ia32_Ld(irn))
- classification |= arch_irn_class_load;
-
- if (is_ia32_St(irn))
- classification |= arch_irn_class_store;
+ return classification;
if (is_ia32_is_reload(irn))
classification |= arch_irn_class_reload;
static int ia32_get_sp_bias(const ir_node *node)
{
+ if (is_ia32_Call(node))
+ return -(int)get_ia32_call_attr_const(node)->pop;
+
if (is_ia32_Push(node))
return 4;
*mem = new_r_Proj(irg, bl, push, mode_M, pn_ia32_Push_M);
/* the push must have SP out register */
- arch_set_irn_register(arch_env, curr_sp, arch_env->sp);
+ arch_set_irn_register(curr_sp, arch_env->sp);
set_ia32_flags(push, arch_irn_flags_ignore);
/* this modifies the stack bias, because we pushed 32bit */
/* move esp to ebp */
curr_bp = be_new_Copy(arch_env->bp->reg_class, irg, bl, curr_sp);
be_set_constr_single_reg(curr_bp, BE_OUT_POS(0), arch_env->bp);
- arch_set_irn_register(arch_env, curr_bp, arch_env->bp);
+ arch_set_irn_register(curr_bp, arch_env->bp);
be_node_set_flags(curr_bp, BE_OUT_POS(0), arch_irn_flags_ignore);
/* beware: the copy must be done before any other sp use */
curr_sp = be_new_CopyKeep_single(arch_env->sp->reg_class, irg, bl, curr_sp, curr_bp, get_irn_mode(curr_sp));
be_set_constr_single_reg(curr_sp, BE_OUT_POS(0), arch_env->sp);
- arch_set_irn_register(arch_env, curr_sp, arch_env->sp);
+ arch_set_irn_register(curr_sp, arch_env->sp);
be_node_set_flags(curr_sp, BE_OUT_POS(0), arch_irn_flags_ignore);
be_abi_reg_map_set(reg_map, arch_env->sp, curr_sp);
/* copy ebp to esp */
curr_sp = be_new_Copy(&ia32_reg_classes[CLASS_ia32_gp], irg, bl, curr_bp);
- arch_set_irn_register(arch_env, curr_sp, arch_env->sp);
+ arch_set_irn_register(curr_sp, arch_env->sp);
be_node_set_flags(curr_sp, BE_OUT_POS(0), arch_irn_flags_ignore);
/* pop ebp */
*mem = new_r_Proj(irg, bl, pop, mode_M, pn_ia32_Pop_M);
}
- arch_set_irn_register(arch_env, curr_sp, arch_env->sp);
- arch_set_irn_register(arch_env, curr_bp, arch_env->bp);
+ arch_set_irn_register(curr_sp, arch_env->sp);
+ arch_set_irn_register(curr_bp, arch_env->bp);
}
be_abi_reg_map_set(reg_map, arch_env->sp, curr_sp);
*/
static void *ia32_abi_init(const be_abi_call_t *call, const arch_env_t *aenv, ir_graph *irg)
{
- ia32_abi_env_t *env = xmalloc(sizeof(env[0]));
- be_abi_call_flags_t fl = be_abi_call_get_flags(call);
+ ia32_abi_env_t *env = XMALLOC(ia32_abi_env_t);
+ be_abi_call_flags_t fl = be_abi_call_get_flags(call);
env->flags = fl.bits;
env->irg = irg;
env->aenv = aenv;
return 0;
case ia32_am_unary:
- return i == n_ia32_unary_op;
+ if (i != n_ia32_unary_op)
+ return 0;
+ break;
case ia32_am_binary:
switch (i) {
req = get_ia32_in_req(irn, n_ia32_binary_left);
if (req->type & arch_register_req_type_limited)
return 0;
-
- return 1;
+ break;
}
case n_ia32_binary_right:
- return 1;
+ break;
default:
return 0;
}
+ break;
default:
panic("Unknown AM type");
}
+
+ /* HACK: must not already use "real" memory.
+ * This can happen for Call and Div */
+ if (!is_NoMem(get_irn_n(irn, n_ia32_mem)))
+ return 0;
+
+ return 1;
}
static void ia32_perform_memory_operand(ir_node *irn, ir_node *spill,
i = n_ia32_binary_right;
}
+ assert(is_NoMem(get_irn_n(irn, n_ia32_mem)));
+
set_irn_n(irn, n_ia32_base, get_irg_frame(get_irn_irg(irn)));
set_irn_n(irn, n_ia32_mem, spill);
set_irn_n(irn, i, ia32_get_admissible_noreg(ia32_current_cg, irn, i));
}
}
-transformer_t be_transformer = TRANSFORMER_DEFAULT;
-
/**
* Transforms the standard firm graph into
* an ia32 firm graph
be_dump(cg->irg, "-pre_transform", dump_ir_block_graph_sched);
switch (be_transformer) {
- case TRANSFORMER_DEFAULT:
- /* transform remaining nodes into assembler instructions */
- ia32_transform_graph(cg);
- break;
+ case TRANSFORMER_DEFAULT:
+ /* transform remaining nodes into assembler instructions */
+ ia32_transform_graph(cg);
+ break;
#ifdef FIRM_GRGEN_BE
- case TRANSFORMER_PBQP:
- case TRANSFORMER_RAND:
- /* transform nodes into assembler instructions by PBQP magic */
- ia32_transform_graph_by_pbqp(cg);
- break;
+ case TRANSFORMER_PBQP:
+ case TRANSFORMER_RAND:
+ /* transform nodes into assembler instructions by PBQP magic */
+ ia32_transform_graph_by_pbqp(cg);
+ break;
#endif
- default: panic("invalid transformer");
+ default:
+ panic("invalid transformer");
}
/* do local optimizations (mainly CSE) */
/* optimize address mode */
ia32_optimize_graph(cg);
- if (cg->dump)
- be_dump(cg->irg, "-am", dump_ir_block_graph_sched);
-
/* do code placement, to optimize the position of constants */
place_code(cg->irg);
be_dump(cg->irg, "-place", dump_ir_block_graph_sched);
}
-/**
- * Dummy functions for hooks we don't need but which must be filled.
- */
-static void ia32_before_sched(void *self) {
- (void) self;
-}
-
-static void turn_back_am(ir_node *node)
+ir_node *turn_back_am(ir_node *node)
{
ir_graph *irg = current_ir_graph;
dbg_info *dbgi = get_irn_dbg_info(node);
case ia32_am_binary:
if (is_ia32_Immediate(get_irn_n(node, n_ia32_binary_right))) {
- assert(is_ia32_Cmp(node) || is_ia32_Cmp8Bit(node) ||
- is_ia32_Test(node) || is_ia32_Test8Bit(node));
set_irn_n(node, n_ia32_binary_left, load_res);
} else {
set_irn_n(node, n_ia32_binary_right, load_res);
set_ia32_op_type(node, ia32_Normal);
if (sched_is_scheduled(node))
sched_add_before(node, load);
+
+ return load_res;
}
static ir_node *flags_remat(ir_node *node, ir_node *after)
}
/* copy the register from the old node to the new Load */
- reg = arch_get_irn_register(cg->arch_env, node);
- arch_set_irn_register(cg->arch_env, new_op, reg);
+ reg = arch_get_irn_register(node);
+ arch_set_irn_register(new_op, reg);
SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(cg, node));
set_ia32_use_frame(push);
set_ia32_op_type(push, ia32_AddrModeS);
set_ia32_ls_mode(push, mode_Is);
+ set_ia32_is_spill(push);
sched_add_before(schedpoint, push);
return push;
set_ia32_use_frame(pop);
set_ia32_op_type(pop, ia32_AddrModeD);
set_ia32_ls_mode(pop, mode_Is);
+ set_ia32_is_reload(pop);
sched_add_before(schedpoint, pop);
return pop;
}
-static ir_node* create_spproj(ia32_code_gen_t *cg, ir_node *node, ir_node *pred, int pos) {
+static ir_node* create_spproj(ir_node *node, ir_node *pred, int pos)
+{
ir_graph *irg = get_irn_irg(node);
dbg_info *dbg = get_irn_dbg_info(node);
ir_node *block = get_nodes_block(node);
ir_node *sp;
sp = new_rd_Proj(dbg, irg, block, pred, spmode, pos);
- arch_set_irn_register(cg->arch_env, sp, spreg);
+ arch_set_irn_register(sp, spreg);
return sp;
}
assert( (entsize == 4 || entsize == 8) && "spillslot on x86 should be 32 or 64 bit");
push = create_push(cg, node, node, sp, mem, inent);
- sp = create_spproj(cg, node, push, pn_ia32_Push_stack);
+ sp = create_spproj(node, push, pn_ia32_Push_stack);
if(entsize == 8) {
/* add another push after the first one */
push = create_push(cg, node, node, sp, mem, inent);
add_ia32_am_offs_int(push, 4);
- sp = create_spproj(cg, node, push, pn_ia32_Push_stack);
+ sp = create_spproj(node, push, pn_ia32_Push_stack);
}
set_irn_n(node, i, new_Bad());
assert( (entsize == 4 || entsize == 8) && "spillslot on x86 should be 32 or 64 bit");
pop = create_pop(cg, node, node, sp, outent);
- sp = create_spproj(cg, node, pop, pn_ia32_Pop_stack);
+ sp = create_spproj(node, pop, pn_ia32_Pop_stack);
if(entsize == 8) {
add_ia32_am_offs_int(pop, 4);
/* add another pop after the first one */
pop = create_pop(cg, node, node, sp, outent);
- sp = create_spproj(cg, node, pop, pn_ia32_Pop_stack);
+ sp = create_spproj(node, pop, pn_ia32_Pop_stack);
}
pops[i] = pop;
*/
static void ia32_collect_frame_entity_nodes(ir_node *node, void *data)
{
- be_fec_env_t *env = data;
+ be_fec_env_t *env = data;
+ const ir_mode *mode;
+ int align;
if (be_is_Reload(node) && be_get_frame_entity(node) == NULL) {
- const ir_mode *mode = get_spill_mode_mode(get_irn_mode(node));
- int align = get_mode_size_bytes(mode);
- be_node_needs_frame_entity(env, node, mode, align);
- } else if(is_ia32_irn(node) && get_ia32_frame_ent(node) == NULL
- && is_ia32_use_frame(node)) {
- if (is_ia32_need_stackent(node) || is_ia32_Load(node)) {
- const ir_mode *mode = get_ia32_ls_mode(node);
- const ia32_attr_t *attr = get_ia32_attr_const(node);
- int align;
-
- if (is_ia32_is_reload(node)) {
- mode = get_spill_mode_mode(mode);
+ mode = get_spill_mode_mode(get_irn_mode(node));
+ align = get_mode_size_bytes(mode);
+ } else if (is_ia32_irn(node) &&
+ get_ia32_frame_ent(node) == NULL &&
+ is_ia32_use_frame(node)) {
+ if (is_ia32_need_stackent(node))
+ goto need_stackent;
+
+ switch (get_ia32_irn_opcode(node)) {
+need_stackent:
+ case iro_ia32_Load: {
+ const ia32_attr_t *attr = get_ia32_attr_const(node);
+
+ if (attr->data.need_32bit_stackent) {
+ mode = mode_Is;
+ } else if (attr->data.need_64bit_stackent) {
+ mode = mode_Ls;
+ } else {
+ mode = get_ia32_ls_mode(node);
+ if (is_ia32_is_reload(node))
+ mode = get_spill_mode_mode(mode);
+ }
+ align = get_mode_size_bytes(mode);
+ break;
}
- if(attr->data.need_64bit_stackent) {
- mode = mode_Ls;
+ case iro_ia32_vfild:
+ case iro_ia32_vfld:
+ case iro_ia32_xLoad: {
+ mode = get_ia32_ls_mode(node);
+ align = 4;
+ break;
}
- if(attr->data.need_32bit_stackent) {
- mode = mode_Is;
+
+ case iro_ia32_FldCW: {
+ /* although 2 byte would be enough 4 byte performs best */
+ mode = mode_Iu;
+ align = 4;
+ break;
}
- align = get_mode_size_bytes(mode);
- be_node_needs_frame_entity(env, node, mode, align);
- } else if (is_ia32_vfild(node) || is_ia32_xLoad(node)
- || is_ia32_vfld(node)) {
- const ir_mode *mode = get_ia32_ls_mode(node);
- int align = 4;
- be_node_needs_frame_entity(env, node, mode, align);
- } else if(is_ia32_FldCW(node)) {
- /* although 2 byte would be enough 4 byte performs best */
- const ir_mode *mode = mode_Iu;
- int align = 4;
- be_node_needs_frame_entity(env, node, mode, align);
- } else {
+
+ default:
#ifndef NDEBUG
- assert(is_ia32_St(node) ||
- is_ia32_xStoreSimple(node) ||
- is_ia32_vfst(node) ||
- is_ia32_vfist(node) ||
- is_ia32_vfisttp(node) ||
- is_ia32_FnstCW(node));
+ panic("unexpected frame user while collection frame entity nodes");
+
+ case iro_ia32_FnstCW:
+ case iro_ia32_Store8Bit:
+ case iro_ia32_Store:
+ case iro_ia32_fst:
+ case iro_ia32_fstp:
+ case iro_ia32_vfist:
+ case iro_ia32_vfisttp:
+ case iro_ia32_vfst:
+ case iro_ia32_xStore:
+ case iro_ia32_xStoreSimple:
#endif
+ return;
}
+ } else {
+ return;
}
+ be_node_needs_frame_entity(env, node, mode, align);
}
/**
/* we might have to rewrite x87 virtual registers */
if (cg->do_x87_sim) {
- x87_simulate_graph(cg->arch_env, cg->birg);
+ x87_simulate_graph(cg->birg);
}
/* do peephole optimisations */
get_eip = new_rd_ia32_GetEIP(NULL, cg->irg, block);
cg->get_eip = get_eip;
- add_irn_dep(get_eip, get_irg_frame(cg->irg));
-
+ be_dep_on_frame(get_eip);
return get_eip;
}
ia32_before_abi, /* before abi introduce hook */
ia32_prepare_graph,
NULL, /* spill */
- ia32_before_sched, /* before scheduling hook */
ia32_before_ra, /* before register allocation hook */
ia32_after_ra, /* after register allocation hook */
ia32_finish, /* called before codegen */
*/
static void *ia32_cg_init(be_irg_t *birg) {
ia32_isa_t *isa = (ia32_isa_t *)birg->main_env->arch_env;
- ia32_code_gen_t *cg = xcalloc(1, sizeof(*cg));
+ ia32_code_gen_t *cg = XMALLOCZ(ia32_code_gen_t);
cg->impl = &ia32_code_gen_if;
cg->irg = birg->irg;
cg->reg_set = new_set(ia32_cmp_irn_reg_assoc, 1024);
cg->isa = isa;
- cg->arch_env = birg->main_env->arch_env;
cg->birg = birg;
cg->blk_sched = NULL;
cg->dump = (birg->main_env->options->dump_flags & DUMP_BE) ? 1 : 0;
set_tarval_output_modes();
- isa = xmalloc(sizeof(*isa));
+ isa = XMALLOC(ia32_isa_t);
memcpy(isa, &ia32_isa_template, sizeof(*isa));
if(mode_fpcw == NULL) {
ia32_build_8bit_reg_map_high(isa->regs_8bit_high);
#ifndef NDEBUG
- isa->name_obst = xmalloc(sizeof(*isa->name_obst));
+ isa->name_obst = XMALLOC(struct obstack);
obstack_init(isa->name_obst);
#endif /* NDEBUG */
call_flags.bits.store_args_sequential = 0;
/* call_flags.bits.try_omit_fp not changed: can handle both settings */
call_flags.bits.fp_free = 0; /* the frame pointer is fixed in IA32 */
- call_flags.bits.call_has_imm = 1; /* No call immediates, we handle this by ourselves */
+ call_flags.bits.call_has_imm = 0; /* No call immediates, we handle this by ourselves */
/* set parameter passing style */
be_abi_call_set_flags(abi, call_flags, &ia32_abi_callbacks);
if (is_ia32_irn(irn)) {
ret = get_ia32_exec_units(irn);
- }
- else if (is_be_node(irn)) {
- if (be_is_Call(irn) || be_is_Return(irn)) {
+ } else if (is_be_node(irn)) {
+ if (be_is_Return(irn)) {
ret = _units_callret;
- }
- else if (be_is_Barrier(irn)) {
+ } else if (be_is_Barrier(irn)) {
ret = _units_dummy;
- }
- else {
- ret = _units_other;
+ } else {
+ ret = _units_other;
}
}
else {
(int*) &be_gas_flavour, gas_items
};
+#ifdef FIRM_GRGEN_BE
static const lc_opt_enum_int_items_t transformer_items[] = {
{ "default", TRANSFORMER_DEFAULT },
-#ifdef FIRM_GRGEN_BE
{ "pbqp", TRANSFORMER_PBQP },
{ "random", TRANSFORMER_RAND },
-#endif
{ NULL, 0 }
};
static lc_opt_enum_int_var_t transformer_var = {
(int*)&be_transformer, transformer_items
};
+#endif
static const lc_opt_table_entry_t ia32_options[] = {
LC_OPT_ENT_ENUM_INT("gasmode", "set the GAS compatibility mode", &gas_var),
+#ifdef FIRM_GRGEN_BE
LC_OPT_ENT_ENUM_INT("transformer", "the transformer used for code selection", &transformer_var),
+#endif
LC_OPT_ENT_INT("stackalign", "set power of two stack alignment for calls",
&ia32_isa_template.arch_env.stack_alignment),
LC_OPT_LAST
projects / libfirm / blobdiff