#include <stdlib.h>
+#include "beirg.h"
#include "obst.h"
#include "set.h"
#include "pmap.h"
#include "irprintf.h"
#include "irgwalk.h"
#include "iropt_t.h"
+#include "irbackedge_t.h"
+#include "irverify_t.h"
#include "be_t.h"
#include "belive_t.h"
return be_nodes_equal(a, b);
}
-static arch_register_req_t *allocate_reg_req(const ir_node *node)
+static arch_register_req_t *allocate_reg_req(ir_graph *const irg)
{
- ir_graph *irg = get_irn_irg(node);
struct obstack *obst = be_get_be_obst(irg);
arch_register_req_t *req = OALLOCZ(obst, arch_register_req_t);
*/
static void init_node_attr(ir_node *node, int n_inputs, int n_outputs)
{
+ assert(n_outputs >= 0);
+
ir_graph *irg = get_irn_irg(node);
struct obstack *obst = be_get_be_obst(irg);
backend_info_t *info = be_get_info(node);
}
info->in_reqs = in_reqs;
- if (n_outputs >= 0) {
- int i;
- info->out_infos = NEW_ARR_D(reg_out_info_t, obst, n_outputs);
- memset(info->out_infos, 0, n_outputs * sizeof(info->out_infos[0]));
- for (i = 0; i < n_outputs; ++i) {
- info->out_infos[i].req = arch_no_register_req;
- }
- } else {
- info->out_infos = NEW_ARR_F(reg_out_info_t, 0);
+ info->out_infos = NEW_ARR_D(reg_out_info_t, obst, n_outputs);
+ memset(info->out_infos, 0, n_outputs * sizeof(info->out_infos[0]));
+ for (int i = 0; i < n_outputs; ++i) {
+ info->out_infos[i].req = arch_no_register_req;
}
}
-static void add_register_req_out(ir_node *node)
-{
- backend_info_t *info = be_get_info(node);
- reg_out_info_t out_info;
- memset(&out_info, 0, sizeof(out_info));
- out_info.req = arch_no_register_req;
- ARR_APP1(reg_out_info_t, info->out_infos, out_info);
-}
-
-static void add_register_req_in(ir_node *node)
+static void add_register_req_in(ir_node *node, const arch_register_req_t *req)
{
backend_info_t *info = be_get_info(node);
- ARR_APP1(const arch_register_req_t*, info->in_reqs, arch_no_register_req);
+ ARR_APP1(const arch_register_req_t*, info->in_reqs, req);
}
ir_node *be_new_Spill(const arch_register_class_t *cls,
be_node_set_reg_class_in(res, n_be_Spill_frame, cls_frame);
be_node_set_reg_class_in(res, n_be_Spill_val, cls);
- /*
- * For spills and reloads, we return "none" as requirement for frame
- * pointer, so every input is ok. Some backends need this (STA).
- * Matze: we should investigate if this is really needed, this solution
- * looks very hacky to me
- */
- be_set_constr_in(res, n_be_Spill_frame, arch_no_register_req);
-
arch_set_irn_register_req_out(res, 0, arch_no_register_req);
return res;
a->offset = 0;
a->base.exc.pin_state = op_pin_state_pinned;
- /*
- * For spills and reloads, we return "none" as requirement for frame
- * pointer, so every input is ok. Some backends need this (e.g. STA).
- * Matze: we should investigate if this is really needed, this solution
- * looks very hacky to me
- */
- be_set_constr_in(res, n_be_Reload_frame, arch_no_register_req);
-
return res;
}
attr = (be_node_attr_t*) get_irn_generic_attr(irn);
attr->exc.pin_state = op_pin_state_pinned;
for (i = 0; i < n; ++i) {
- be_node_set_reg_class_in(irn, i, cls);
- be_node_set_reg_class_out(irn, i, cls);
+ const ir_node *input = in[i];
+ const arch_register_req_t *req = arch_get_irn_register_req(input);
+ if (req->width == 1) {
+ be_set_constr_in(irn, i, cls->class_req);
+ be_set_constr_out(irn, i, cls->class_req);
+ } else {
+ arch_register_req_t *const new_req = allocate_reg_req(irg);
+ new_req->cls = cls;
+ new_req->type = (req->type & arch_register_req_type_aligned);
+ new_req->width = req->width;
+ be_set_constr_in(irn, i, new_req);
+ be_set_constr_out(irn, i, new_req);
+ }
}
return irn;
{
ir_node *in[1];
ir_node *res;
- arch_register_req_t *req;
be_node_attr_t *attr;
ir_graph *irg = get_Block_irg(bl);
const arch_register_req_t *in_req = arch_get_irn_register_req(op);
be_node_set_reg_class_in(res, 0, cls);
be_node_set_reg_class_out(res, 0, cls);
- req = allocate_reg_req(res);
+ arch_register_req_t *const req = allocate_reg_req(irg);
req->cls = cls;
req->type = arch_register_req_type_should_be_same
| (in_req->type & arch_register_req_type_aligned);
return get_irn_n(cpy, n_be_Copy_op);
}
-void be_set_Copy_op(ir_node *cpy, ir_node *op)
-{
- set_irn_n(cpy, n_be_Copy_op, op);
-}
-
ir_node *be_new_Keep(ir_node *block, int n, ir_node *in[])
{
int i;
attr->exc.pin_state = op_pin_state_pinned;
for (i = 0; i < n; ++i) {
- add_irn_n(res, in[i]);
- add_register_req_in(res);
+ ir_node *pred = in[i];
+ add_irn_n(res, pred);
+ const arch_register_req_t *req = arch_get_irn_register_req(pred);
+ req = req->cls != NULL ? req->cls->class_req : arch_no_register_req;
+ add_register_req_in(res, req);
}
keep_alive(res);
void be_Keep_add_node(ir_node *keep, const arch_register_class_t *cls, ir_node *node)
{
- int n;
-
assert(be_is_Keep(keep));
- n = add_irn_n(keep, node);
- add_register_req_in(keep);
- be_node_set_reg_class_in(keep, n, cls);
+ add_irn_n(keep, node);
+ add_register_req_in(keep, cls->class_req);
}
ir_node *be_new_Call(dbg_info *dbg, ir_graph *irg, ir_node *bl, ir_node *mem,
- ir_node *sp, ir_node *ptr, int n_outs, int n, ir_node *in[],
- ir_type *call_tp)
+ const arch_register_req_t *sp_req, ir_node *sp,
+ const arch_register_req_t *ptr_req, ir_node *ptr,
+ int n_outs, int n, ir_node *in[], ir_type *call_tp)
{
be_call_attr_t *a;
int real_n = n_be_Call_first_arg + n;
a->call_tp = call_tp;
a->pop = 0;
a->base.exc.pin_state = op_pin_state_pinned;
+ be_set_constr_in(irn, n_be_Call_sp, sp_req);
+ be_set_constr_in(irn, n_be_Call_ptr, ptr_req);
return irn;
}
{
be_return_attr_t *a;
ir_node *res;
- int i;
- res = new_ir_node(dbg, irg, block, op_be_Return, mode_X, -1, NULL);
- init_node_attr(res, -1, 1);
- for (i = 0; i < n; ++i) {
- add_irn_n(res, in[i]);
- add_register_req_in(res);
- }
+ res = new_ir_node(dbg, irg, block, op_be_Return, mode_X, n, in);
+ init_node_attr(res, n, 1);
be_set_constr_out(res, 0, arch_no_register_req);
a = (be_return_attr_t*)get_irn_generic_attr(res);
a->emit_pop = emit_pop;
}
-int be_Return_append_node(ir_node *ret, ir_node *node)
-{
- int pos;
-
- pos = add_irn_n(ret, node);
- add_register_req_in(ret);
-
- return pos;
-}
-
ir_node *be_new_IncSP(const arch_register_t *sp, ir_node *bl,
ir_node *old_sp, int offset, int align)
{
ir_node *be_new_Start(dbg_info *dbgi, ir_node *bl, int n_outs)
{
ir_node *res;
- int i;
ir_graph *irg = get_Block_irg(bl);
be_node_attr_t *attr;
res = new_ir_node(dbgi, irg, bl, op_be_Start, mode_T, 0, NULL);
- init_node_attr(res, 0, -1);
+ init_node_attr(res, 0, n_outs);
attr = (be_node_attr_t*) get_irn_generic_attr(res);
attr->exc.pin_state = op_pin_state_pinned;
- for (i = 0; i < n_outs; ++i) {
- add_register_req_out(res);
- }
return res;
}
attr->exc.pin_state = op_pin_state_floats;
be_node_set_reg_class_in(irn, 0, cls);
be_node_set_reg_class_out(irn, 0, cls);
+ for (int i = 0; i < n; ++i) {
+ ir_node *pred = in_keep[i];
+ const arch_register_req_t *req = arch_get_irn_register_req(pred);
+ req = req->cls != NULL ? req->cls->class_req : arch_no_register_req;
+ be_set_constr_in(irn, i+1, req);
+ }
return irn;
}
const arch_register_t *reg, arch_register_req_type_t additional_types)
{
arch_register_req_t *req = OALLOC(obst, arch_register_req_t);
- const arch_register_class_t *cls = arch_register_get_class(reg);
+ const arch_register_class_t *cls = reg->reg_class;
unsigned *limited_bitset;
limited_bitset = rbitset_obstack_alloc(obst, arch_register_class_n_regs(cls));
- rbitset_set(limited_bitset, arch_register_get_index(reg));
+ rbitset_set(limited_bitset, reg->index);
req->type = arch_register_req_type_limited | additional_types;
req->cls = cls;
be_node_get_frame_entity,
be_node_set_frame_offset,
be_node_get_sp_bias,
- NULL, /* get_inverse */
NULL, /* get_op_estimated_cost */
NULL, /* possible_memory_operand */
NULL, /* perform_memory_operand */
static int get_start_reg_index(ir_graph *irg, const arch_register_t *reg)
{
ir_node *start = get_irg_start(irg);
- unsigned n_outs = arch_get_irn_n_outs(start);
- int i;
/* do a naive linear search... */
- for (i = 0; i < (int)n_outs; ++i) {
- const arch_register_req_t *out_req
- = arch_get_irn_register_req_out(start, i);
- if (! (out_req->type & arch_register_req_type_limited))
+ be_foreach_out(start, i) {
+ arch_register_req_t const *const out_req = arch_get_irn_register_req_out(start, i);
+ if (!arch_register_req_is(out_req, limited))
continue;
- if (out_req->cls != arch_register_get_class(reg))
+ if (out_req->cls != reg->reg_class)
continue;
if (!rbitset_is_set(out_req->limited, reg->index))
continue;
{
int i = get_start_reg_index(irg, reg);
ir_node *start = get_irg_start(irg);
- ir_mode *mode = arch_register_class_mode(arch_register_get_class(reg));
- const ir_edge_t *edge;
+ ir_mode *mode = arch_register_class_mode(reg->reg_class);
foreach_out_edge(start, edge) {
ir_node *proj = get_edge_src_irn(edge);
return new_r_Proj(start, mode, i);
}
-int be_find_return_reg_input(ir_node *ret, const arch_register_t *reg)
-{
- int arity = get_irn_arity(ret);
- int i;
- /* do a naive linear search... */
- for (i = 0; i < arity; ++i) {
- const arch_register_req_t *req = arch_get_irn_register_req_in(ret, i);
- if (! (req->type & arch_register_req_type_limited))
- continue;
- if (req->cls != arch_register_get_class(reg))
- continue;
- if (!rbitset_is_set(req->limited, reg->index))
- continue;
- return i;
- }
- panic("Tried querying undefined register '%s' at Return", reg->name);
-}
-
static ir_entity* dummy_get_frame_entity(const ir_node *node)
{
(void) node;
{
(void) node;
(void) bias;
- panic("dummy_set_frame_offset() should not be called");
+ panic("should not be called");
}
static int dummy_get_sp_bias(const ir_node *node)
dummy_get_frame_entity,
dummy_set_frame_offset,
dummy_get_sp_bias,
- NULL, /* get_inverse */
NULL, /* get_op_estimated_cost */
NULL, /* possible_memory_operand */
NULL, /* perform_memory_operand */
ir_node *be_new_Phi(ir_node *block, int n_ins, ir_node **ins, ir_mode *mode,
- const arch_register_class_t *cls)
+ const arch_register_req_t *req)
{
- const arch_register_req_t *req;
ir_graph *irg = get_irn_irg(block);
struct obstack *obst = be_get_be_obst(irg);
backend_info_t *info;
int i;
- ir_node *phi = new_r_Phi(block, n_ins, ins, mode);
+ ir_node *phi = new_ir_node(NULL, irg, block, op_Phi, mode, n_ins, ins);
+ phi->attr.phi.u.backedge = new_backedge_arr(irg->obst, n_ins);
info = be_get_info(phi);
info->out_infos = NEW_ARR_D(reg_out_info_t, obst, 1);
memset(info->out_infos, 0, 1 * sizeof(info->out_infos[0]));
info->in_reqs = OALLOCN(obst, const arch_register_req_t*, n_ins);
- if (cls == NULL) {
- req = arch_no_register_req;
- } else {
- req = cls->class_req;
- }
info->out_infos[0].req = req;
for (i = 0; i < n_ins; ++i) {
info->in_reqs[i] = req;
}
-
+ irn_verify_irg(phi, irg);
+ phi = optimize_node(phi);
return phi;
}
void be_dump_phi_reg_reqs(FILE *F, const ir_node *node, dump_reason_t reason)
{
+ ir_graph *irg = get_irn_irg(node);
+ if (!irg_is_constrained(irg, IR_GRAPH_CONSTRAINT_BACKEND))
+ return;
+
switch (reason) {
case dump_node_opcode_txt:
fputs(get_op_name(get_irn_op(node)), F);
case dump_node_nodeattr_txt:
break;
case dump_node_info_txt:
- {
- backend_info_t *info = be_get_info(node);
- if (info != NULL && info->out_infos[0].req != NULL) {
- arch_dump_reqs_and_registers(F, node);
- }
+ arch_dump_reqs_and_registers(F, node);
break;
- }
default:
break;
dummy_get_frame_entity,
dummy_set_frame_offset,
dummy_get_sp_bias,
- NULL, /* get_inverse */
NULL, /* get_op_estimated_cost */
NULL, /* possible_memory_operand */
NULL, /* perform_memory_operand */
memcpy(new_attr, old_attr, get_op_attr_size(get_irn_op(old_node)));
- new_info->flags = old_info->flags;
- if (old_info->out_infos != NULL) {
- size_t n_outs = ARR_LEN(old_info->out_infos);
- /* need dyanmic out infos? */
- if (be_is_Perm(new_node)) {
- new_info->out_infos = NEW_ARR_F(reg_out_info_t, n_outs);
- } else {
- new_info->out_infos = NEW_ARR_D(reg_out_info_t, obst, n_outs);
- }
- memcpy(new_info->out_infos, old_info->out_infos,
- n_outs * sizeof(new_info->out_infos[0]));
- } else {
- new_info->out_infos = NULL;
- }
+ new_info->flags = old_info->flags;
+ new_info->out_infos = old_info->out_infos ? DUP_ARR_D(reg_out_info_t, obst, old_info->out_infos) : NULL;
/* input infos */
if (old_info->in_reqs != NULL) {
}
}
-static const ir_op_ops be_node_op_ops = {
- firm_default_hash,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- copy_attr,
- NULL,
- NULL,
- NULL,
- NULL,
- dump_node,
- NULL,
- &be_node_irn_ops
-};
-
int is_be_node(const ir_node *irn)
{
return get_op_ops(get_irn_op(irn))->be_ops == &be_node_irn_ops;
}
+static ir_op *new_be_op(unsigned code, const char *name, op_pin_state p,
+ irop_flags flags, op_arity opar, size_t attr_size)
+{
+ ir_op *res = new_ir_op(code, name, p, flags, opar, 0, attr_size);
+ res->ops.dump_node = dump_node;
+ res->ops.copy_attr = copy_attr;
+ res->ops.be_ops = &be_node_irn_ops;
+ return res;
+}
+
void be_init_op(void)
{
unsigned opc;
+ assert(op_be_Spill == NULL);
+
/* Acquire all needed opcodes. */
- op_be_Spill = new_ir_op(beo_Spill, "be_Spill", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
- op_be_Reload = new_ir_op(beo_Reload, "be_Reload", op_pin_state_exc_pinned, irop_flag_none, oparity_zero, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
- op_be_Perm = new_ir_op(beo_Perm, "be_Perm", op_pin_state_exc_pinned, irop_flag_none, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_be_MemPerm = new_ir_op(beo_MemPerm, "be_MemPerm", op_pin_state_exc_pinned, irop_flag_none, oparity_variable, 0, sizeof(be_memperm_attr_t), &be_node_op_ops);
- op_be_Copy = new_ir_op(beo_Copy, "be_Copy", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_be_Keep = new_ir_op(beo_Keep, "be_Keep", op_pin_state_exc_pinned, irop_flag_keep, oparity_dynamic, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_be_CopyKeep = new_ir_op(beo_CopyKeep, "be_CopyKeep", op_pin_state_exc_pinned, irop_flag_keep, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_be_Call = new_ir_op(beo_Call, "be_Call", op_pin_state_exc_pinned, irop_flag_fragile|irop_flag_uses_memory, oparity_variable, 0, sizeof(be_call_attr_t), &be_node_op_ops);
+ op_be_Spill = new_be_op(beo_Spill, "be_Spill", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, sizeof(be_frame_attr_t));
+ op_be_Reload = new_be_op(beo_Reload, "be_Reload", op_pin_state_exc_pinned, irop_flag_none, oparity_zero, sizeof(be_frame_attr_t));
+ op_be_Perm = new_be_op(beo_Perm, "be_Perm", op_pin_state_exc_pinned, irop_flag_none, oparity_variable, sizeof(be_node_attr_t));
+ op_be_MemPerm = new_be_op(beo_MemPerm, "be_MemPerm", op_pin_state_exc_pinned, irop_flag_none, oparity_variable, sizeof(be_memperm_attr_t));
+ op_be_Copy = new_be_op(beo_Copy, "be_Copy", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, sizeof(be_node_attr_t));
+ op_be_Keep = new_be_op(beo_Keep, "be_Keep", op_pin_state_exc_pinned, irop_flag_keep, oparity_dynamic, sizeof(be_node_attr_t));
+ op_be_CopyKeep = new_be_op(beo_CopyKeep, "be_CopyKeep", op_pin_state_exc_pinned, irop_flag_keep, oparity_variable, sizeof(be_node_attr_t));
+ op_be_Call = new_be_op(beo_Call, "be_Call", op_pin_state_exc_pinned, irop_flag_fragile|irop_flag_uses_memory, oparity_variable, sizeof(be_call_attr_t));
ir_op_set_memory_index(op_be_Call, n_be_Call_mem);
ir_op_set_fragile_indices(op_be_Call, pn_be_Call_X_regular, pn_be_Call_X_except);
- op_be_Return = new_ir_op(beo_Return, "be_Return", op_pin_state_exc_pinned, irop_flag_cfopcode, oparity_dynamic, 0, sizeof(be_return_attr_t), &be_node_op_ops);
- op_be_AddSP = new_ir_op(beo_AddSP, "be_AddSP", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_be_SubSP = new_ir_op(beo_SubSP, "be_SubSP", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_be_IncSP = new_ir_op(beo_IncSP, "be_IncSP", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, 0, sizeof(be_incsp_attr_t), &be_node_op_ops);
- op_be_Start = new_ir_op(beo_Start, "be_Start", op_pin_state_exc_pinned, irop_flag_none, oparity_zero, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_be_FrameAddr = new_ir_op(beo_FrameAddr, "be_FrameAddr", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
+ op_be_Return = new_be_op(beo_Return, "be_Return", op_pin_state_exc_pinned, irop_flag_cfopcode, oparity_variable, sizeof(be_return_attr_t));
+ op_be_AddSP = new_be_op(beo_AddSP, "be_AddSP", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, sizeof(be_node_attr_t));
+ op_be_SubSP = new_be_op(beo_SubSP, "be_SubSP", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, sizeof(be_node_attr_t));
+ op_be_IncSP = new_be_op(beo_IncSP, "be_IncSP", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, sizeof(be_incsp_attr_t));
+ op_be_Start = new_be_op(beo_Start, "be_Start", op_pin_state_exc_pinned, irop_flag_none, oparity_zero, sizeof(be_node_attr_t));
+ op_be_FrameAddr = new_be_op(beo_FrameAddr, "be_FrameAddr", op_pin_state_exc_pinned, irop_flag_none, oparity_unary, sizeof(be_frame_attr_t));
op_be_Spill->ops.node_cmp_attr = FrameAddr_cmp_attr;
op_be_Reload->ops.node_cmp_attr = FrameAddr_cmp_attr;
/* attach out dummy_ops to middle end nodes */
for (opc = iro_First; opc <= iro_Last; ++opc) {
- ir_op *op = get_irp_opcode(opc);
+ ir_op *op = ir_get_opcode(opc);
assert(op->ops.be_ops == NULL);
op->ops.be_ops = &dummy_be_irn_ops;
}
op_Phi->ops.be_ops = &phi_irn_ops;
}
+
+void be_finish_op(void)
+{
+ free_ir_op(op_be_Spill); op_be_Spill = NULL;
+ free_ir_op(op_be_Reload); op_be_Reload = NULL;
+ free_ir_op(op_be_Perm); op_be_Perm = NULL;
+ free_ir_op(op_be_MemPerm); op_be_MemPerm = NULL;
+ free_ir_op(op_be_Copy); op_be_Copy = NULL;
+ free_ir_op(op_be_Keep); op_be_Keep = NULL;
+ free_ir_op(op_be_CopyKeep); op_be_CopyKeep = NULL;
+ free_ir_op(op_be_Call); op_be_Call = NULL;
+ free_ir_op(op_be_Return); op_be_Return = NULL;
+ free_ir_op(op_be_IncSP); op_be_IncSP = NULL;
+ free_ir_op(op_be_AddSP); op_be_AddSP = NULL;
+ free_ir_op(op_be_SubSP); op_be_SubSP = NULL;
+ free_ir_op(op_be_Start); op_be_Start = NULL;
+ free_ir_op(op_be_FrameAddr); op_be_FrameAddr = NULL;
+}
projects / libfirm / blobdiff