void dmemory_lower_Alloc(ir_node *node)
{
assert(is_Alloc(node));
if (get_Alloc_where(node) != heap_alloc)
return;
ir_graph *irg = get_irn_irg(node);
ir_type *type = get_Alloc_type(node);
ir_node *count = get_Alloc_count(node);
ir_node *res = NULL;
ir_node *cur_mem = get_Alloc_mem(node);
ir_node *block = get_nodes_block(node);
if (is_Class_type(type)) {
res = (*dmemory_model.alloc_object)(type, irg, block, &cur_mem);
ddispatch_prepare_new_instance(type, res, irg, block, &cur_mem);
} else if (is_Array_type(type)) {
ir_type *eltype = get_array_element_type(type);
res = (*dmemory_model.alloc_array)(eltype, count, irg, block, &cur_mem);
} else {
assert (0);
}
turn_into_tuple(node, pn_Alloc_max);
set_irn_n(node, pn_Alloc_M, cur_mem);
set_irn_n(node, pn_Alloc_res, res);
}
void ia32_swap_left_right(ir_node *node)
{
ia32_attr_t *attr = get_ia32_attr(node);
ir_node *left = get_irn_n(node, n_ia32_binary_left);
ir_node *right = get_irn_n(node, n_ia32_binary_right);
assert(is_ia32_commutative(node));
attr->ins_permuted = !attr->ins_permuted;
set_irn_n(node, n_ia32_binary_left, right);
set_irn_n(node, n_ia32_binary_right, left);
}
void dmemory_lower_Arraylength(ir_node *arraylength)
{
ir_node *array_ref = get_Arraylength_arrayref(arraylength);
ir_node *block = get_nodes_block(arraylength);
ir_graph *irg = get_irn_irg(block);
ir_node *cur_mem = get_Arraylength_mem(arraylength);
ir_node *len = (*dmemory_model.get_arraylength)(array_ref, irg, block, &cur_mem);
turn_into_tuple(arraylength, pn_Arraylength_max);
set_irn_n(arraylength, pn_Arraylength_M, cur_mem);
set_irn_n(arraylength, pn_Arraylength_res, len);
}
static bool try_swap_inputs(ir_node *node)
{
/* commutative operation, just switch the inputs */
if (is_commutative(node)) {
assert(get_amd64_attr_const(node)->op_mode == AMD64_OP_REG_REG);
/* TODO: support Cmp input swapping */
ir_node *in0 = get_irn_n(node, 0);
ir_node *in1 = get_irn_n(node, 1);
set_irn_n(node, 0, in1);
set_irn_n(node, 1, in0);
return true;
}
return false;
}
/*
* The 64-bit version of libgcc does not contain some builtin
* functions for 32-bit values (__<builtin>si2) anymore.
*/
static void widen_builtin(ir_node *node)
{
ir_type *mtp = get_Builtin_type(node);
ir_type *arg1 = get_method_param_type(mtp, 0);
// Nothing to do, if argument size is at least machine size.
if (get_type_size(arg1) >= ir_target_pointer_size())
return;
// Only touch builtins with no 32-bit version.
ir_builtin_kind kind = get_Builtin_kind(node);
if (kind != ir_bk_clz &&
kind != ir_bk_ctz &&
kind != ir_bk_ffs &&
kind != ir_bk_parity &&
kind != ir_bk_popcount) {
return;
}
ir_mode *target_mode = get_reference_offset_mode(mode_P);
dbg_info *dbgi = get_irn_dbg_info(node);
ir_node *block = get_nodes_block(node);
ir_node *op = get_irn_n(node, n_Builtin_max + 1);
ir_node *conv = new_rd_Conv(dbgi, block, op, target_mode);
set_irn_n(node, n_Builtin_max + 1, conv);
ir_type *new_arg1 = get_type_for_mode(target_mode);
ir_type *new_result = get_method_res_type(mtp, 0);
ir_type *new_type = new_type_method(1, 1, false, cc_cdecl_set, mtp_no_property);
set_method_param_type(new_type, 0, new_arg1);
set_method_res_type(new_type, 0, new_result);
set_Builtin_type(node, new_type);
}
static void fix_address_pic_elf(ir_node *const node, void *const data)
{
(void)data;
foreach_irn_in(node, i, pred) {
if (!is_Address(pred))
continue;
ir_entity *const entity = get_Address_entity(pred);
if (is_tls_entity(entity))
continue;
ir_graph *const irg = get_irn_irg(node);
bool const ext_visible = is_externally_visible(entity);
ir_node * res;
if (i == n_Call_ptr && is_Call(node)) {
/* We can compilation-unit local functions directly, everything else
* goes through the PLT */
x86_immediate_kind_t const reloc
= ext_visible ? X86_IMM_PLT : X86_IMM_PCREL;
res = be_new_Relocation(irg, reloc, entity, mode_P);
} else if (!ext_visible) {
res = be_new_Relocation(irg, X86_IMM_PCREL, entity, mode_P);
} else {
res = create_gotpcrel_load(irg, entity);
}
set_irn_n(node, i, res);
}
}
static void fix_address_pic_mach_o(ir_node *const node, void *const data)
{
(void)data;
foreach_irn_in(node, i, pred) {
if (!is_Address(pred))
continue;
ir_entity *const entity = get_Address_entity(pred);
if (is_tls_entity(entity))
continue;
ir_graph *const irg = get_irn_irg(node);
ir_node * res;
if (i == n_Call_ptr && is_Call(node)) {
// Somehow we can always call PC relative. Are there trampolines
// involved?
res = be_new_Relocation(irg, X86_IMM_PCREL, entity, mode_P);
} else if (entity_has_definition(entity)
&& !(get_entity_linkage(entity) & IR_LINKAGE_MERGE)) {
res = be_new_Relocation(irg, X86_IMM_PCREL, entity, mode_P);
} else {
res = create_gotpcrel_load(irg, entity);
}
set_irn_n(node, i, res);
}
}
/** patches Addresses to work in position independent code */
static void fix_pic_addresses(ir_node *const node, void *const data)
{
(void)data;
ir_graph *const irg = get_irn_irg(node);
be_main_env_t *const be = be_get_irg_main_env(irg);
foreach_irn_in(node, i, pred) {
if (!is_Address(pred))
continue;
ir_node *res;
ir_entity *const entity = get_Address_entity(pred);
dbg_info *const dbgi = get_irn_dbg_info(pred);
if (i == n_Call_ptr && is_Call(node)) {
/* Calls can jump to relative addresses, so we can directly jump to
* the (relatively) known call address or the trampoline */
if (can_address_relative(entity))
continue;
ir_entity *const trampoline = get_trampoline(be, entity);
res = new_rd_Address(dbgi, irg, trampoline);
} else if (get_entity_type(entity) == get_code_type()) {
/* Block labels can always be addressed directly. */
continue;
} else {
/* Everything else is accessed relative to EIP. */
ir_node *const block = get_nodes_block(pred);
ir_mode *const mode = get_irn_mode(pred);
ir_node *const pic_base = ia32_get_pic_base(irg);
if (can_address_relative(entity)) {
/* All ok now for locally constructed stuff. */
res = new_rd_Add(dbgi, block, pic_base, pred, mode);
/* Make sure the walker doesn't visit this add again. */
mark_irn_visited(res);
} else {
/* Get entry from pic symbol segment. */
ir_entity *const pic_symbol = get_pic_symbol(be, entity);
ir_node *const pic_address = new_rd_Address(dbgi, irg, pic_symbol);
ir_node *const add = new_rd_Add(dbgi, block, pic_base, pic_address, mode);
mark_irn_visited(add);
/* We need an extra indirection for global data outside our current
* module. The loads are always safe and can therefore float and
* need no memory input */
ir_type *const type = get_entity_type(entity);
ir_node *const nomem = get_irg_no_mem(irg);
ir_node *const load = new_rd_Load(dbgi, block, nomem, add, mode, type, cons_floats);
res = new_r_Proj(load, mode, pn_Load_res);
}
}
set_irn_n(node, i, res);
}
}
void ConvHandler::cleanUp(Node node)
{
if (is_Conv(node))
{
Node child = node.getChild(0);
if (/*is_Conv(child) && */ node.getMode() == child.getMode())
replaceNode(node, child);
else if (is_Const(child))
replaceNode(node, new_r_Const_long(irg, node.getMode(), child.getTarval().getLong()));
else if (is_Conv(child))
set_irn_n(node, 0, child.getChild(0));
}
}
static void introduce_epilog(ir_node *ret)
{
arch_register_t const *const sp_reg = &arm_registers[REG_SP];
assert(arch_get_irn_register_req_in(ret, n_arm_Return_sp) == sp_reg->single_req);
ir_node *const sp = get_irn_n(ret, n_arm_Return_sp);
ir_node *const block = get_nodes_block(ret);
ir_graph *const irg = get_irn_irg(ret);
ir_type *const frame_type = get_irg_frame_type(irg);
unsigned const frame_size = get_type_size_bytes(frame_type);
ir_node *const incsp = be_new_IncSP(sp_reg, block, sp, -frame_size, 0);
set_irn_n(ret, n_arm_Return_sp, incsp);
sched_add_before(ret, incsp);
}
void be_set_IncSP_pred(ir_node *incsp, ir_node *pred)
{
assert(be_is_IncSP(incsp));
set_irn_n(incsp, n_be_IncSP_pred, pred);
}