X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Fircgcons.c;h=abecbcdf5d1e50068687a1c7a2a89f4e2f7b74f2;hb=cb91bddc9cacdab7c28e4336847bd3dc248aa549;hp=e85fe02470ccc0b909eb6739e0bb490a46766720;hpb=1ef847a519fd20484e3a5d3f6f51ed5bbc8d69cc;p=libfirm diff --git a/ir/ir/ircgcons.c b/ir/ir/ircgcons.c index e85fe0247..abecbcdf5 100644 --- a/ir/ir/ircgcons.c +++ b/ir/ir/ircgcons.c @@ -44,14 +44,12 @@ void set_irp_ip_view_invalid(void) { } -/* # define CATE_jni */ - -/* Datenstruktur für jede Methode */ +/* Data for each method */ typedef struct { - int count; /* GL: anzahl aufrufer */ - bool open; /* offene Methode (mit unbekanntem Aufrufer) */ - ir_node * reg, * mem, ** res; /* EndReg, Mem und Rückgabewerte */ - ir_node * except, * except_mem; /* EndExcept und Mem für Ausnahmeabbruch */ + int count; /* Number of calleers. */ + bool open; /* Open method: called by an unknown caller */ + ir_node * reg, * mem, ** res; /* EndReg, Mem and Method return values */ + ir_node * except, * except_mem; /* EndExcept and Mem for exception return */ } irg_data_t; static irg_data_t * irg_data_create(void) { @@ -60,12 +58,17 @@ static irg_data_t * irg_data_create(void) { return data; } -/* Die Anzahl der Aufrufer jeder Methode zählen (irg_data_t->count), und die - * offenen Methoden (mit unbekannten Vorgänger) markieren. */ +/** Count the number of callers of each method and mark open methods. + * + * Fills the irg_data data structure. + * Open methods are methods with an unknown caller, I.e., methods that + * - are external visible + * - are dereferenced somewhere within the program (i.e., the address of the + * method is stored somewhere). */ static void caller_init(int arr_length, entity ** free_methods) { int i, j; for (i = get_irp_n_irgs() - 1; i >= 0; --i) { - set_entity_link(get_irg_ent(get_irp_irg(i)), irg_data_create()); + set_entity_link(get_irg_entity(get_irp_irg(i)), irg_data_create()); } for (i = arr_length - 1; i >= 0; --i) { irg_data_t * data = get_entity_link(free_methods[i]); @@ -74,18 +77,18 @@ static void caller_init(int arr_length, entity ** free_methods) { for (i = get_irp_n_irgs() - 1; i >= 0; --i) { ir_graph * irg = get_irp_irg(i); ir_node * call; - /* Die Call-Knoten sind (mit den Proj-Knoten) am End-Knoten verlinkt! */ + /* We collected all call nodes in a link list at the end node. */ for (call = get_irn_link(get_irg_end(irg)); call; call = get_irn_link(call)) { if (get_irn_op(call) != op_Call) continue; for (j = get_Call_n_callees(call) - 1; j >= 0; --j) { - entity * ent = get_Call_callee(call, j); - if (ent) { - irg_data_t * data = get_entity_link(ent); + entity * ent = get_Call_callee(call, j); + if (ent) { + irg_data_t * data = get_entity_link(ent); # ifndef CATE_jni - assert(get_entity_irg(ent) && data); - ++data->count; + assert(get_entity_irg(ent) && data); + ++data->count; # endif /* ndef CATE_jni */ - } + } } } } @@ -125,7 +128,7 @@ static void collect_phicallproj_walker(ir_node * node, ir_node ** call_tail) { *call_tail = node; } } else if (get_irn_op(node) == op_Phi) { - ir_node * block = get_nodes_Block(node); + ir_node * block = get_nodes_block(node); set_irn_link(node, get_irn_link(block)); set_irn_link(block, node); } @@ -171,7 +174,7 @@ static ir_node * exchange_proj(ir_node * proj) { filter = new_Filter(get_Proj_pred(proj), get_irn_mode(proj), get_Proj_proj(proj)); /* Die Proj- (Id-) Operation sollte im gleichen Grundblock stehen, wie die * Filter-Operation. */ - set_nodes_Block(proj, get_nodes_Block(filter)); + set_nodes_block(proj, get_nodes_block(filter)); exchange(proj, filter); return filter; } @@ -199,8 +202,8 @@ static void prepare_irg_end_except(ir_graph * irg, irg_data_t * data); * block has no predecessors. */ static INLINE ir_node *get_cg_Unknown(ir_mode *m) { assert((get_Block_n_cfgpreds(get_irg_start_block(get_irp_main_irg())) == 1) && - (get_nodes_block(get_Block_cfgpred(get_irg_start_block(get_irp_main_irg()), 0)) == - get_irg_start_block(get_irp_main_irg()))); + (get_nodes_block(get_Block_cfgpred(get_irg_start_block(get_irp_main_irg()), 0)) == + get_irg_start_block(get_irp_main_irg()))); return new_r_Unknown(get_irp_main_irg(), m); } @@ -225,11 +228,11 @@ static void prepare_irg(ir_graph * irg, irg_data_t * data) { * den Start-Block verschieben. */ for (proj = get_irn_link(get_irg_start(irg)); proj; proj = get_irn_link(proj)) { if (get_Proj_pred(proj) != get_irg_start(irg) - || (get_Proj_proj(proj) != pns_initial_exec && get_Proj_proj(proj) != pns_args)) { + || (get_Proj_proj(proj) != pn_Start_X_initial_exec && get_Proj_proj(proj) != pn_Start_T_args)) { ir_node * filter = exchange_proj(proj); set_Filter_cg_pred_arr(filter, n_callers, in); } else { - set_nodes_Block(proj, start_block); + set_nodes_block(proj, start_block); } } @@ -249,9 +252,9 @@ static void prepare_irg(ir_graph * irg, irg_data_t * data) { } } /* Globle Einträge für ersetzte Operationen korrigieren. */ - set_irg_frame (irg, skip_nop(get_irg_frame(irg))); - set_irg_globals (irg, skip_nop(get_irg_globals(irg))); - set_irg_initial_mem(irg, skip_nop(get_irg_initial_mem(irg))); + set_irg_frame (irg, skip_Id(get_irg_frame(irg))); + set_irg_globals (irg, skip_Id(get_irg_globals(irg))); + set_irg_initial_mem(irg, skip_Id(get_irg_initial_mem(irg))); /* Unbekannten Aufrufer sofort eintragen. */ if (data->open) { @@ -293,12 +296,12 @@ static void prepare_irg_end(ir_graph * irg, irg_data_t * data) { } if (n_ret > 0) { - int n_res = get_method_n_ress(get_entity_type(get_irg_ent(irg))); + int n_res = get_method_n_ress(get_entity_type(get_irg_entity(irg))); ir_node ** in = NEW_ARR_F(ir_node *, n_ret); /* block */ for (i = n_ret - 1; i >= 0; --i) { - set_irg_current_block(irg, get_nodes_Block(ret_arr[i])); + set_irg_current_block(irg, get_nodes_block(ret_arr[i])); in[i] = new_Jmp(); } create_Block(n_ret, in); @@ -322,14 +325,14 @@ static void prepare_irg_end(ir_graph * irg, irg_data_t * data) { ir_mode *mode = NULL; /* In[0] could be a Bad node with wrong mode. */ for (i = n_ret - 1; i >= 0; --i) { - in[i] = get_Return_res(ret_arr[i], j); - if (!mode && get_irn_mode(in[i]) != mode_T) - mode = get_irn_mode(in[i]); + in[i] = get_Return_res(ret_arr[i], j); + if (!mode && get_irn_mode(in[i]) != mode_T) + mode = get_irn_mode(in[i]); } if (mode) - data->res[j] = new_Phi(n_ret, in, mode); + data->res[j] = new_Phi(n_ret, in, mode); else /* All preds are Bad */ - data->res[j] = new_Bad(); + data->res[j] = new_Bad(); } DEL_ARR_F(in); @@ -368,13 +371,13 @@ static void prepare_irg_end_except(ir_graph * irg, irg_data_t * data) { for (i = n_except - 1; i >= 0; --i) { ir_node * node = skip_Proj(skip_Tuple(except_arr[i])); if (get_irn_op(node) == op_Call) { - in[i] = new_r_Proj(irg, get_nodes_Block(node), node, mode_M, 3); + in[i] = new_r_Proj(irg, get_nodes_block(node), node, mode_M, 3); } else if (get_irn_op(node) == op_Raise) { - in[i] = new_r_Proj(irg, get_nodes_Block(node), node, mode_M, 1); + in[i] = new_r_Proj(irg, get_nodes_block(node), node, mode_M, 1); } else { assert(is_fragile_op(node)); /* We rely that all cfops have the memory output at the same position. */ - in[i] = new_r_Proj(irg, get_nodes_Block(node), node, mode_M, 0); + in[i] = new_r_Proj(irg, get_nodes_block(node), node, mode_M, 0); } } data->except_mem = new_Phi(n_except, in, mode_M); @@ -391,7 +394,7 @@ static void prepare_irg_end_except(ir_graph * irg, irg_data_t * data) { /* Zwischengespeicherte Daten wieder freigeben. */ static void cleanup_irg(ir_graph * irg) { - entity * ent = get_irg_ent(irg); + entity * ent = get_irg_entity(irg); irg_data_t * data = get_entity_link(ent); assert(data); if (data->res) DEL_ARR_F(data->res); @@ -406,7 +409,7 @@ static void cleanup_irg(ir_graph * irg) { static void move_phis(ir_node * from_block, ir_node * to_block) { ir_node * phi; for (phi = get_irn_link(from_block); phi != NULL; phi = get_irn_link(phi)) { - set_nodes_Block(phi, to_block); + set_nodes_block(phi, to_block); } assert(get_irn_link(to_block) == NULL); set_irn_link(to_block, get_irn_link(from_block)); @@ -423,18 +426,18 @@ static void move_nodes(ir_node * from_block, ir_node * to_block, ir_node * node) for (i = arity - 1; i >= 0; --i) { ir_node * pred = get_irn_n(node, i); - if (get_nodes_Block(pred) == from_block) { + if (get_nodes_block(pred) == from_block) { move_nodes(from_block, to_block, pred); } } - set_nodes_Block(node, to_block); + set_nodes_block(node, to_block); /* Move projs of this node. */ proj = get_irn_link(node); for (; proj; proj = skip_Id(get_irn_link(proj))) { if (get_irn_op(proj) != op_Proj && get_irn_op(proj) != op_Filter) continue; - if ((get_nodes_Block(proj) == from_block) && (skip_Proj(get_irn_n(proj, 0)) == node)) - set_nodes_Block(proj, to_block); + if ((get_nodes_block(proj) == from_block) && (skip_Proj(get_irn_n(proj, 0)) == node)) + set_nodes_block(proj, to_block); } } @@ -451,23 +454,23 @@ static void construct_start(entity * caller, entity * callee, assert(irg); assert(get_entity_peculiarity(callee) == peculiarity_existent); /* Else data is not initalized. */ assert((0 <= data->count) && - (data->count < get_Block_cg_n_cfgpreds(get_nodes_Block(start)))); + (data->count < get_Block_cg_n_cfgpreds(get_nodes_block(start)))); - set_Block_cg_cfgpred(get_nodes_Block(start), data->count, exec); + set_Block_cg_cfgpred(get_nodes_block(start), data->count, exec); for (filter = get_irn_link(start); filter; filter = get_irn_link(filter)) { if (get_irn_op(filter) != op_Filter) continue; if (get_Proj_pred(filter) == start) { switch ((int) get_Proj_proj(filter)) { - case pns_global_store: + case pn_Start_M: set_Filter_cg_pred(filter, data->count, get_Call_mem(call)); break; - case pns_frame_base: + case pn_Start_P_frame_base: /* "frame_base" wird nur durch Unknown dargestellt. Man kann ihn aber * auch explizit darstellen, wenn sich daraus Vorteile für die * Datenflussanalyse ergeben. */ set_Filter_cg_pred(filter, data->count, get_cg_Unknown(get_irn_mode(filter))); break; - case pns_globals: + case pn_Start_P_globals: /* "globals" wird nur durch Unknown dargestellt. Man kann ihn aber auch * explizit darstellen, wenn sich daraus Vorteile für die * Datenflussanalyse ergeben. */ @@ -565,7 +568,7 @@ static bool exc_branches_to_end(ir_graph *irg, ir_node *exc) { /* Returns true if only caller of irg is "Unknown". */ static bool is_outermost_graph(ir_graph *irg) { - irg_data_t * data = get_entity_link(get_irg_ent(irg)); + irg_data_t * data = get_entity_link(get_irg_entity(irg)); if (data->count) { return false; } else if (data->open) { @@ -586,7 +589,7 @@ static bool is_outermost_graph(ir_graph *irg) { * aufgerufenen Methoden eintragen. */ static void construct_call(ir_node * call) { int n_callees = get_Call_n_callees(call); - ir_node * post_block = get_nodes_Block(call); /* block nach dem Aufruf */ + ir_node * post_block = get_nodes_block(call); /* block nach dem Aufruf */ ir_node * pre_block = create_Block(get_Block_n_cfgpreds(post_block), get_Block_cfgpred_arr(post_block)); /* block vor dem Aufruf (mit CallBegin) */ ir_node * except_block = NULL, * proj; @@ -596,7 +599,7 @@ static void construct_call(ir_node * call) { /* CallBegin might be entry to endless recursion. */ add_End_keepalive(get_irg_end(get_irn_irg(pre_block)), pre_block); ir_node ** in = NEW_ARR_F(ir_node *, n_callees); - entity * caller = get_irg_ent(current_ir_graph); /* entity des aktuellen ir_graph */ + entity * caller = get_irg_entity(current_ir_graph); /* entity des aktuellen ir_graph */ entity ** callees = NEW_ARR_F(entity *, n_callees); /* aufgerufene Methoden: entity */ ir_graph ** irgs = NEW_ARR_F(ir_graph *, n_callees); /* aufgerufene Methoden: ir_graph */ irg_data_t ** data = NEW_ARR_F(irg_data_t *, n_callees); /* aufgerufene Methoden: irg_data_t */ @@ -633,7 +636,7 @@ static void construct_call(ir_node * call) { for (i = 0; i < n_callees; ++i) { if (data[i]) { /* explicit */ if (data[i]->reg) { - in[i] = new_r_Proj(irgs[i], get_nodes_Block(data[i]->reg), + in[i] = new_r_Proj(irgs[i], get_nodes_block(data[i]->reg), data[i]->reg, mode_X, data[i]->count); } else { in[i] = new_Bad(); @@ -660,13 +663,13 @@ static void construct_call(ir_node * call) { if (is_outermost_graph(current_ir_graph)) { except_block = get_irg_end_block(current_ir_graph); } else { - irg_data_t * tmp_data = get_entity_link(get_irg_ent(current_ir_graph)); + irg_data_t * tmp_data = get_entity_link(get_irg_entity(current_ir_graph)); except_block = get_nodes_block(tmp_data->except); } } else { except_block = create_Block(1, &proj); - set_nodes_Block(proj, except_block); + set_nodes_block(proj, except_block); exchange(proj, new_Break()); set_irg_current_block(current_ir_graph, pre_block); set_irn_n(except_block, 0, new_Proj(call, mode_X, 1)); @@ -683,7 +686,7 @@ static void construct_call(ir_node * call) { entity * callee = get_Call_callee(call, i); if (data[i]) { /* explicit */ if (data[i]->except) { - in[i] = new_r_Proj(get_entity_irg(callee), get_nodes_Block(data[i]->except), + in[i] = new_r_Proj(get_entity_irg(callee), get_nodes_block(data[i]->except), data[i]->except, mode_X, data[i]->count); } else { in[i] = new_Bad(); @@ -729,7 +732,7 @@ static void construct_call(ir_node * call) { if (get_Proj_proj(proj) == 0) { /* memory */ ir_node * filter; - set_nodes_Block(proj, post_block); + set_nodes_block(proj, post_block); filter = exchange_proj(proj); /* filter in die Liste der Phis aufnehmen */ if (get_irn_link(filter) == NULL) { /* note CSE */ @@ -745,7 +748,7 @@ static void construct_call(ir_node * call) { } else if (get_Proj_proj(proj) == 3) { /* except_mem */ ir_node * filter; - set_nodes_Block(proj, post_block); + set_nodes_block(proj, post_block); assert(except_block); set_irg_current_block(current_ir_graph, except_block); filter = exchange_proj(proj); @@ -764,7 +767,7 @@ static void construct_call(ir_node * call) { ir_node * filter; assert(is_Proj(get_Proj_pred(proj)) && get_Proj_pred(get_Proj_pred(proj)) == call); - set_nodes_Block(proj, post_block); + set_nodes_block(proj, post_block); filter = exchange_proj(proj); /* filter in die Liste der Phis aufnehmen */ if (get_irn_link(filter) == NULL) { /* not CSE */ @@ -797,7 +800,7 @@ void cg_construct(int arr_len, entity ** free_methods_arr) { /* prepare irgs */ for (i = get_irp_n_irgs() - 1; i >= 0; --i) { ir_graph * irg = get_irp_irg(i); - entity * ent = get_irg_ent(irg); + entity * ent = get_irg_entity(irg); irg_data_t * data = get_entity_link(ent); if (data->count) { prepare_irg(irg, data); @@ -822,7 +825,7 @@ void cg_construct(int arr_len, entity ** free_methods_arr) { if (get_irn_op(node) == op_Call) { n_callees = get_Call_n_callees(node); if (n_callees > 1 || (n_callees == 1 && get_Call_callee(node, 0) != NULL)) { - construct_call(node); + construct_call(node); } } } @@ -841,12 +844,18 @@ void cg_construct(int arr_len, entity ** free_methods_arr) { static void destruct_walker(ir_node * node, void * env) { if (get_irn_op(node) == op_Block) { remove_Block_cg_cfgpred_arr(node); + /* Do not turn Break into Jmp. Better: merge blocks right away. */ + if (get_Block_n_cfgpreds(node) == 1) { + ir_node *pred = get_Block_cfgpred(node, 0); + if (get_irn_op(pred) == op_Break) + exchange(node, get_nodes_block(pred)); + } } else if (get_irn_op(node) == op_Filter) { - set_irg_current_block(current_ir_graph, get_nodes_Block(node)); + set_irg_current_block(current_ir_graph, get_nodes_block(node)); exchange(node, new_Proj(get_Filter_pred(node), get_irn_mode(node), get_Filter_proj(node))); } else if (get_irn_op(node) == op_Break) { - set_irg_current_block(current_ir_graph, get_nodes_Block(node)); - exchange(node, new_Jmp()); + //set_irg_current_block(current_ir_graph, get_nodes_block(node)); + //exchange(node, new_Jmp()); } else if (get_irn_op(node) == op_Call) { remove_Call_callee_arr(node); } else if (get_irn_op(node) == op_Proj) { @@ -862,9 +871,9 @@ void cg_destruct(void) { for (i = get_irp_n_irgs() - 1; i >= 0; --i) { ir_graph * irg = get_irp_irg(i); irg_walk_graph(irg, destruct_walker, clear_link, NULL); - set_irg_frame(irg, skip_nop(get_irg_frame(irg))); - set_irg_globals(irg, skip_nop(get_irg_globals(irg))); - set_irg_initial_mem(irg, skip_nop(get_irg_initial_mem(irg))); + set_irg_frame(irg, skip_Id(get_irg_frame(irg))); + set_irg_globals(irg, skip_Id(get_irg_globals(irg))); + set_irg_initial_mem(irg, skip_Id(get_irg_initial_mem(irg))); set_irg_callee_info_state(irg, irg_callee_info_none); set_irg_end_reg(irg, get_irg_end(irg)); set_irg_end_except(irg, get_irg_end(irg));