return rshift_node;
}
-/**
- * returns true if it is assured, that the upper bits of a node are "clean"
- * which means for a 16 or 8 bit value, that the upper bits in the register
- * are 0 for unsigned and a copy of the last significant bit for signed
- * numbers.
- */
-static bool upper_bits_clean(ir_node *node, ir_mode *mode)
-{
- switch ((ir_opcode)get_irn_opcode(node)) {
- case iro_And:
- if (!mode_is_signed(mode)) {
- return upper_bits_clean(get_And_left(node), mode)
- || upper_bits_clean(get_And_right(node), mode);
- }
- /* FALLTHROUGH */
- case iro_Or:
- case iro_Eor:
- return upper_bits_clean(get_binop_left(node), mode)
- && upper_bits_clean(get_binop_right(node), mode);
-
- case iro_Shr:
- if (mode_is_signed(mode)) {
- return false; /* TODO */
- } else {
- ir_node *right = get_Shr_right(node);
- if (is_Const(right)) {
- ir_tarval *tv = get_Const_tarval(right);
- long val = get_tarval_long(tv);
- if (val >= 32 - (long)get_mode_size_bits(mode))
- return true;
- }
- return upper_bits_clean(get_Shr_left(node), mode);
- }
-
- case iro_Shrs:
- return upper_bits_clean(get_Shrs_left(node), mode);
-
- case iro_Const: {
- ir_tarval *tv = get_Const_tarval(node);
- long val = get_tarval_long(tv);
- if (mode_is_signed(mode)) {
- long shifted = val >> (get_mode_size_bits(mode)-1);
- return shifted == 0 || shifted == -1;
- } else {
- unsigned long shifted = (unsigned long)val;
- shifted >>= get_mode_size_bits(mode)-1;
- shifted >>= 1;
- return shifted == 0;
- }
- }
-
- case iro_Conv: {
- ir_mode *dest_mode = get_irn_mode(node);
- ir_node *op = get_Conv_op(node);
- ir_mode *src_mode = get_irn_mode(op);
- unsigned src_bits = get_mode_size_bits(src_mode);
- unsigned dest_bits = get_mode_size_bits(dest_mode);
- /* downconvs are a nop */
- if (src_bits <= dest_bits)
- return upper_bits_clean(op, mode);
- if (dest_bits <= get_mode_size_bits(mode)
- && mode_is_signed(dest_mode) == mode_is_signed(mode))
- return true;
- return false;
- }
-
- case iro_Proj: {
- ir_node *pred = get_Proj_pred(node);
- switch (get_irn_opcode(pred)) {
- case iro_Load: {
- ir_mode *load_mode = get_Load_mode(pred);
- unsigned load_bits = get_mode_size_bits(load_mode);
- unsigned bits = get_mode_size_bits(mode);
- if (load_bits > bits)
- return false;
- if (mode_is_signed(mode) != mode_is_signed(load_mode))
- return false;
- return true;
- }
- default:
- break;
- }
- }
- default:
- break;
- }
- return false;
-}
-
/**
* Extend a value to 32 bit signed/unsigned depending on its mode.
*
static bool needs_extension(ir_node *op)
{
ir_mode *mode = get_irn_mode(op);
- if (get_mode_size_bits(mode) >= get_mode_size_bits(mode_gp))
+ unsigned gp_bits = get_mode_size_bits(mode_gp);
+ if (get_mode_size_bits(mode) >= gp_bits)
return false;
- return !upper_bits_clean(op, mode);
+ return !be_upper_bits_clean(op, mode);
}
/**
- * Check, if a given node is a Down-Conv, ie. a integer Conv
+ * Check, if a given node is a Down-Conv, i.e. a integer Conv
* from a mode with a mode with more bits to a mode with lesser bits.
* Moreover, we return only true if the node has not more than 1 user.
*
/**
* Create an entity for a given (floating point) tarval
*/
-static ir_entity *create_float_const_entity(ir_tarval *tv)
+static ir_entity *create_float_const_entity(ir_graph *const irg, ir_tarval *const tv)
{
- const arch_env_t *arch_env = be_get_irg_arch_env(current_ir_graph);
+ const arch_env_t *arch_env = be_get_irg_arch_env(irg);
sparc_isa_t *isa = (sparc_isa_t*) arch_env;
ir_entity *entity = pmap_get(ir_entity, isa->constants, tv);
ir_initializer_t *initializer;
static ir_node *gen_float_const(dbg_info *dbgi, ir_node *block, ir_tarval *tv)
{
- ir_entity *entity = create_float_const_entity(tv);
+ ir_graph *irg = get_Block_irg(block);
+ ir_entity *entity = create_float_const_entity(irg, tv);
ir_node *hi = new_bd_sparc_SetHi(dbgi, block, entity, 0);
- ir_node *mem = get_irg_no_mem(current_ir_graph);
+ ir_node *mem = get_irg_no_mem(irg);
ir_mode *mode = get_tarval_mode(tv);
ir_node *new_op
= create_ldf(dbgi, block, hi, mem, mode, entity, 0, false);
idx = new_bd_sparc_Sll_imm(dbgi, new_block, new_selector, NULL, 2);
/* load from jumptable */
load = new_bd_sparc_Ld_reg(dbgi, new_block, table_address, idx,
- get_irg_no_mem(current_ir_graph),
+ get_irg_no_mem(irg),
mode_gp);
address = new_r_Proj(load, mode_gp, pn_sparc_Ld_res);
ir_node *nomem = get_irg_no_mem(irg);
ir_node *stf = create_stf(dbgi, block, ftoi, sp, nomem, mode_fp,
NULL, 0, true);
+ arch_add_irn_flags(stf, arch_irn_flags_spill);
ir_node *ld = new_bd_sparc_Ld_imm(dbgi, block, sp, stf, mode_gp,
NULL, 0, true);
ir_node *res = new_r_Proj(ld, mode_gp, pn_sparc_Ld_res);
ir_node *nomem = get_irg_no_mem(irg);
ir_node *st = new_bd_sparc_St_imm(dbgi, block, op, sp, nomem,
mode_gp, NULL, 0, true);
+ arch_add_irn_flags(st, arch_irn_flags_spill);
ir_node *ldf = new_bd_sparc_Ldf_s(dbgi, block, sp, st, mode_fp,
NULL, 0, true);
ir_node *res = new_r_Proj(ldf, mode_fp, pn_sparc_Ldf_res);
return create_itof(dbgi, block, new_op, dst_mode);
}
} else { /* complete in gp registers */
- int min_bits;
- ir_mode *min_mode;
-
- if (src_bits == dst_bits || dst_mode == mode_b) {
+ if (src_bits >= dst_bits || dst_mode == mode_b) {
/* kill unnecessary conv */
return be_transform_node(op);
}
- if (src_bits < dst_bits) {
- min_bits = src_bits;
- min_mode = src_mode;
- } else {
- min_bits = dst_bits;
- min_mode = dst_mode;
- }
-
- if (upper_bits_clean(op, min_mode)) {
+ if (be_upper_bits_clean(op, src_mode)) {
return be_transform_node(op);
}
new_op = be_transform_node(op);
- if (mode_is_signed(min_mode)) {
- return gen_sign_extension(dbgi, block, new_op, min_bits);
+ if (mode_is_signed(src_mode)) {
+ return gen_sign_extension(dbgi, block, new_op, src_bits);
} else {
- return gen_zero_extension(dbgi, block, new_op, min_bits);
+ return gen_zero_extension(dbgi, block, new_op, src_bits);
}
}
}
static ir_node *bitcast_int_to_float(dbg_info *dbgi, ir_node *block,
ir_node *value0, ir_node *value1)
{
- ir_graph *irg = current_ir_graph;
+ ir_graph *irg = get_Block_irg(block);
ir_node *sp = get_irg_frame(irg);
ir_node *nomem = get_irg_no_mem(irg);
ir_node *st = new_bd_sparc_St_imm(dbgi, block, value0, sp, nomem,
ir_mode *mode;
ir_node *ldf;
ir_node *mem;
+ arch_add_irn_flags(st, arch_irn_flags_spill);
set_irn_pinned(st, op_pin_state_floats);
if (value1 != NULL) {
ir_node *st1 = new_bd_sparc_St_imm(dbgi, block, value1, sp, nomem,
mode_gp, NULL, 4, true);
+ arch_add_irn_flags(st1, arch_irn_flags_spill);
ir_node *in[2] = { st, st1 };
ir_node *sync = new_r_Sync(block, 2, in);
set_irn_pinned(st1, op_pin_state_floats);
result[1] = NULL;
}
} else {
- ir_graph *irg = current_ir_graph;
+ ir_graph *irg = get_Block_irg(block);
ir_node *stack = get_irg_frame(irg);
ir_node *nomem = get_irg_no_mem(irg);
ir_node *new_value = be_transform_node(value);
ir_node *stf = create_stf(dbgi, block, new_value, stack, nomem,
float_mode, NULL, 0, true);
ir_node *ld;
+ arch_add_irn_flags(stf, arch_irn_flags_spill);
set_irn_pinned(stf, op_pin_state_floats);
ld = new_bd_sparc_Ld_imm(dbgi, block, stack, stf, mode_gp, NULL, 0, true);
}
assert(result_info->req1 == NULL);
}
+ const unsigned *allocatable_regs = be_birg_from_irg(irg)->allocatable_regs;
for (i = 0; i < N_SPARC_REGISTERS; ++i) {
const arch_register_t *reg;
if (!rbitset_is_set(cconv->caller_saves, i))
continue;
reg = &sparc_registers[i];
- arch_set_irn_register_req_out(res, o++, reg->single_req);
+ arch_set_irn_register_req_out(res, o, reg->single_req);
+ if (!rbitset_is_set(allocatable_regs, reg->global_index))
+ arch_set_irn_register_out(res, o, reg);
+ ++o;
}
assert(o == out_arity);
long pn = get_Proj_proj(node);
switch ((pn_Alloc)pn) {
- case pn_Alloc_M:
- return new_r_Proj(new_alloc, mode_M, pn_sparc_SubSP_M);
- case pn_Alloc_res: {
- ir_node *addr_proj = new_r_Proj(new_alloc, mode_gp, pn_sparc_SubSP_addr);
- arch_set_irn_register(addr_proj, arch_get_irn_register(node));
- return addr_proj;
- }
+ case pn_Alloc_M: return new_r_Proj(new_alloc, mode_M, pn_sparc_SubSP_M);
+ case pn_Alloc_res: return new_r_Proj(new_alloc, mode_gp, pn_sparc_SubSP_addr);
+
case pn_Alloc_X_regular:
case pn_Alloc_X_except:
panic("exception output of alloc not supported (at %+F)",
}
}
-/**
- * Transform some Phi nodes
- */
static ir_node *gen_Phi(ir_node *node)
{
+ ir_mode *mode = get_irn_mode(node);
const arch_register_req_t *req;
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_graph *irg = current_ir_graph;
- dbg_info *dbgi = get_irn_dbg_info(node);
- ir_mode *mode = get_irn_mode(node);
- ir_node *phi;
-
if (mode_needs_gp_reg(mode)) {
/* we shouldn't have any 64bit stuff around anymore */
assert(get_mode_size_bits(mode) <= 32);
req = arch_no_register_req;
}
- /* phi nodes allow loops, so we use the old arguments for now
- * and fix this later */
- phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node), get_irn_in(node) + 1);
- copy_node_attr(irg, node, phi);
- be_duplicate_deps(node, phi);
- arch_set_irn_register_req_out(phi, 0, req);
- be_enqueue_preds(node);
- return phi;
+ return be_transform_phi(node, req);
}
/**
projects / libfirm / blobdiff