Exemplo n.º 1
0
static vec<tree, va_gc> *
create_array_refs (location_t loc, vec<vec<an_parts> > an_info,
		   vec<an_loop_parts> an_loop_info, size_t size,  size_t rank)
{
  tree ind_mult, ind_incr;
  vec<tree, va_gc> *array_operand = NULL;

  for (size_t ii = 0; ii < size; ii++)
    if (an_info[ii][0].is_vector)
      {
	tree array_opr = an_info[ii][rank - 1].value;
	for (int s_jj = rank -1; s_jj >= 0; s_jj--)
	  {
	    tree start = cp_fold_convert (ptrdiff_type_node, 
					  an_info[ii][s_jj].start);
	    tree stride = cp_fold_convert (ptrdiff_type_node, 
					   an_info[ii][s_jj].stride);
	    tree var = cp_fold_convert (ptrdiff_type_node, 
					an_loop_info[s_jj].var);

	    ind_mult = build2 (MULT_EXPR, TREE_TYPE (var), var, stride);
	    ind_incr = build2 (PLUS_EXPR, TREE_TYPE (var), start, ind_mult);
	    /* Array [ start_index + (induction_var * stride)]  */
	    array_opr = grok_array_decl	(loc, array_opr, ind_incr, false);
	  }
	vec_safe_push (array_operand, array_opr);
      }
    else
      vec_safe_push (array_operand, integer_one_node);
  return array_operand;
}
Exemplo n.º 2
0
static vec<tree, va_gc> *
create_array_refs (location_t loc, vec<vec<an_parts> > an_info,
		   vec<an_loop_parts> an_loop_info, size_t size, size_t rank)
{
  tree ind_mult, ind_incr;
  vec<tree, va_gc> *array_operand = NULL;
  for (size_t ii = 0; ii < size; ii++)
    if (an_info[ii][0].is_vector)
      {
	tree array_opr = an_info[ii][rank - 1].value;
	for (int s_jj = rank - 1; s_jj >= 0; s_jj--)
	  {
	    tree var = an_loop_info[s_jj].var;
	    tree stride = an_info[ii][s_jj].stride;
	    tree start = an_info[ii][s_jj].start;
	    ind_mult = build2 (MULT_EXPR, TREE_TYPE (var), var, stride);
	    ind_incr = build2 (PLUS_EXPR, TREE_TYPE (var), start, ind_mult);
	    array_opr = build_array_ref (loc, array_opr, ind_incr);
	  }
	vec_safe_push (array_operand, array_opr);
      }
    else
      /* This is just a dummy node to make sure both the list sizes for both
	 array list and array operand list are the same.  */
      vec_safe_push (array_operand, integer_one_node);
  return array_operand;
}		     
Exemplo n.º 3
0
static bool
fsm_find_thread_path (basic_block start_bb, basic_block end_bb,
		      vec<basic_block, va_gc> *&path,
		      hash_set<basic_block> *visited_bbs, loop_p loop)
{
  if (loop != start_bb->loop_father)
    return false;

  if (start_bb == end_bb)
    {
      vec_safe_push (path, start_bb);
      return true;
    }

  if (!visited_bbs->add (start_bb))
    {
      edge e;
      edge_iterator ei;
      FOR_EACH_EDGE (e, ei, start_bb->succs)
	if (fsm_find_thread_path (e->dest, end_bb, path, visited_bbs, loop))
	  {
	    vec_safe_push (path, start_bb);
	    return true;
	  }
    }
Exemplo n.º 4
0
void
free_stmt_list (tree t)
{
  gcc_assert (!STATEMENT_LIST_HEAD (t));
  gcc_assert (!STATEMENT_LIST_TAIL (t));
  vec_safe_push (stmt_list_cache, t);
}
Exemplo n.º 5
0
tree
build_capture_proxy (tree member)
{
  tree var, object, fn, closure, name, lam, type;

  if (PACK_EXPANSION_P (member))
    member = PACK_EXPANSION_PATTERN (member);

  closure = DECL_CONTEXT (member);
  fn = lambda_function (closure);
  lam = CLASSTYPE_LAMBDA_EXPR (closure);

  /* The proxy variable forwards to the capture field.  */
  object = build_fold_indirect_ref (DECL_ARGUMENTS (fn));
  object = finish_non_static_data_member (member, object, NULL_TREE);
  if (REFERENCE_REF_P (object))
    object = TREE_OPERAND (object, 0);

  /* Remove the __ inserted by add_capture.  */
  if (DECL_NORMAL_CAPTURE_P (member))
    name = get_identifier (IDENTIFIER_POINTER (DECL_NAME (member)) + 2);
  else
    name = DECL_NAME (member);

  type = lambda_proxy_type (object);

  if (DECL_VLA_CAPTURE_P (member))
    {
      /* Rebuild the VLA type from the pointer and maxindex.  */
      tree field = next_initializable_field (TYPE_FIELDS (type));
      tree ptr = build_simple_component_ref (object, field);
      field = next_initializable_field (DECL_CHAIN (field));
      tree max = build_simple_component_ref (object, field);
      type = build_cplus_array_type (TREE_TYPE (TREE_TYPE (ptr)),
				     build_index_type (max));
      type = build_reference_type (type);
      REFERENCE_VLA_OK (type) = true;
      object = convert (type, ptr);
    }

  var = build_decl (input_location, VAR_DECL, name, type);
  SET_DECL_VALUE_EXPR (var, object);
  DECL_HAS_VALUE_EXPR_P (var) = 1;
  DECL_ARTIFICIAL (var) = 1;
  TREE_USED (var) = 1;
  DECL_CONTEXT (var) = fn;

  if (name == this_identifier)
    {
      gcc_assert (LAMBDA_EXPR_THIS_CAPTURE (lam) == member);
      LAMBDA_EXPR_THIS_CAPTURE (lam) = var;
    }

  if (fn == current_function_decl)
    insert_capture_proxy (var);
  else
    vec_safe_push (LAMBDA_EXPR_PENDING_PROXIES (lam), var);

  return var;
}
Exemplo n.º 6
0
tree
replace_invariant_exprs (tree *node)
{
  size_t ix = 0;
  tree node_list = NULL_TREE;
  tree t = NULL_TREE, new_var = NULL_TREE, new_node; 
  struct inv_list data;

  data.list_values = NULL;
  data.replacement = NULL;
  data.additional_tcodes = NULL;
  walk_tree (node, find_inv_trees, (void *)&data, NULL);

  if (vec_safe_length (data.list_values))
    {
      node_list = push_stmt_list ();
      for (ix = 0; vec_safe_iterate (data.list_values, ix, &t); ix++)
	{
	  new_var = build_decl (EXPR_LOCATION (t), VAR_DECL, NULL_TREE,
				TREE_TYPE (t));
	  gcc_assert (new_var != NULL_TREE && new_var != error_mark_node);
	  new_node = build2 (MODIFY_EXPR, TREE_TYPE (t), new_var, t);
	  add_stmt (new_node);
	  vec_safe_push (data.replacement, new_var);
	}
      walk_tree (node, replace_inv_trees, (void *)&data, NULL);
      node_list = pop_stmt_list (node_list);
    }
  return node_list;
}
Exemplo n.º 7
0
static void
unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in,
					      struct bitpack_d *bp, tree expr)
{
  TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp));
  vec_safe_push (all_translation_units, expr);
}
Exemplo n.º 8
0
tree
push_stmt_list (void)
{
  tree t;
  t = alloc_stmt_list ();
  vec_safe_push (stmt_list_stack, t);
  return t;
}
Exemplo n.º 9
0
tree
make_ssa_name_fn (struct function *fn, tree var, gimple stmt)
{
  tree t;
  use_operand_p imm;

  gcc_assert (TREE_CODE (var) == VAR_DECL
	      || TREE_CODE (var) == PARM_DECL
	      || TREE_CODE (var) == RESULT_DECL
	      || (TYPE_P (var) && is_gimple_reg_type (var)));

  /* If our free list has an element, then use it.  */
  if (!vec_safe_is_empty (FREE_SSANAMES (fn)))
    {
      t = FREE_SSANAMES (fn)->pop ();
      if (GATHER_STATISTICS)
	ssa_name_nodes_reused++;

      /* The node was cleared out when we put it on the free list, so
	 there is no need to do so again here.  */
      gcc_assert (ssa_name (SSA_NAME_VERSION (t)) == NULL);
      (*SSANAMES (fn))[SSA_NAME_VERSION (t)] = t;
    }
  else
    {
      t = make_node (SSA_NAME);
      SSA_NAME_VERSION (t) = SSANAMES (fn)->length ();
      vec_safe_push (SSANAMES (fn), t);
      if (GATHER_STATISTICS)
	ssa_name_nodes_created++;
    }

  if (TYPE_P (var))
    {
      TREE_TYPE (t) = var;
      SET_SSA_NAME_VAR_OR_IDENTIFIER (t, NULL_TREE);
    }
  else
    {
      TREE_TYPE (t) = TREE_TYPE (var);
      SET_SSA_NAME_VAR_OR_IDENTIFIER (t, var);
    }
  SSA_NAME_DEF_STMT (t) = stmt;
  if (POINTER_TYPE_P (TREE_TYPE (t)))
    SSA_NAME_PTR_INFO (t) = NULL;
  else
    SSA_NAME_RANGE_INFO (t) = NULL;

  SSA_NAME_IN_FREE_LIST (t) = 0;
  SSA_NAME_IS_DEFAULT_DEF (t) = 0;
  imm = &(SSA_NAME_IMM_USE_NODE (t));
  imm->use = NULL;
  imm->prev = imm;
  imm->next = imm;
  imm->loc.ssa_name = t;

  return t;
}
Exemplo n.º 10
0
static void kernexec_instrument_fptr_or(gimple_stmt_iterator *gsi)
{
	gimple asm_or_stmt, call_stmt;
	tree old_fptr, new_fptr, input, output;
#if BUILDING_GCC_VERSION <= 4007
	VEC(tree, gc) *inputs = NULL;
	VEC(tree, gc) *outputs = NULL;
#else
	vec<tree, va_gc> *inputs = NULL;
	vec<tree, va_gc> *outputs = NULL;
#endif

	call_stmt = gsi_stmt(*gsi);
	old_fptr = gimple_call_fn(call_stmt);

	// create temporary fptr variable
	new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_or");
#if BUILDING_GCC_VERSION <= 4007
	add_referenced_var(new_fptr);
#endif
	new_fptr = make_ssa_name(new_fptr, NULL);

	// build asm volatile("orq %%r10, %0\n\t" : "=r"(new_fptr) : "0"(old_fptr));
	input = build_tree_list(NULL_TREE, build_string(2, "0"));
	input = chainon(NULL_TREE, build_tree_list(input, old_fptr));
	output = build_tree_list(NULL_TREE, build_string(3, "=r"));
	output = chainon(NULL_TREE, build_tree_list(output, new_fptr));
#if BUILDING_GCC_VERSION <= 4007
	VEC_safe_push(tree, gc, inputs, input);
	VEC_safe_push(tree, gc, outputs, output);
#else
	vec_safe_push(inputs, input);
	vec_safe_push(outputs, output);
#endif
	asm_or_stmt = gimple_build_asm_vec("orq %%r10, %0\n\t", inputs, outputs, NULL, NULL);
	SSA_NAME_DEF_STMT(new_fptr) = asm_or_stmt;
	gimple_asm_set_volatile(asm_or_stmt, true);
	gsi_insert_before(gsi, asm_or_stmt, GSI_SAME_STMT);
	update_stmt(asm_or_stmt);

	// replace call stmt fn with the new fptr
	gimple_call_set_fn(call_stmt, new_fptr);
	update_stmt(call_stmt);
}
Exemplo n.º 11
0
static void
add_ssa_edge (tree var, bool is_varying)
{
  imm_use_iterator iter;
  use_operand_p use_p;

  FOR_EACH_IMM_USE_FAST (use_p, iter, var)
    {
      gimple use_stmt = USE_STMT (use_p);

      if (prop_simulate_again_p (use_stmt)
	  && !gimple_plf (use_stmt, STMT_IN_SSA_EDGE_WORKLIST))
	{
	  gimple_set_plf (use_stmt, STMT_IN_SSA_EDGE_WORKLIST, true);
	  if (is_varying)
	    vec_safe_push (varying_ssa_edges, use_stmt);
	  else
	    vec_safe_push (interesting_ssa_edges, use_stmt);
	}
    }
Exemplo n.º 12
0
odr_type
get_odr_type (tree type, bool insert)
{
  odr_type_d **slot;
  odr_type val;
  hashval_t hash;

  type = TYPE_MAIN_VARIANT (type);
  gcc_checking_assert (TYPE_MAIN_VARIANT (type) == type);
  hash = hash_type_name (type);
  slot = odr_hash.find_slot_with_hash (type, hash, insert ? INSERT : NO_INSERT);
  if (!slot)
    return NULL;

  /* See if we already have entry for type.  */
  if (*slot)
    {
      val = *slot;

      /* With LTO we need to support multiple tree representation of
	 the same ODR type.  */
      if (val->type != type)
        add_type_duplicate (val, type);
    }
  else
    {
      tree binfo = TYPE_BINFO (type);
      unsigned int i;

      val = ggc_alloc_cleared_odr_type_d ();
      val->type = type;
      val->bases = vNULL;
      val->derived_types = vNULL;
      val->anonymous_namespace = type_in_anonymous_namespace_p (type);
      *slot = val;
      for (i = 0; i < BINFO_N_BASE_BINFOS (binfo); i++)
	/* For now record only polymorphic types. other are
	   pointless for devirtualization and we can not precisely
	   determine ODR equivalency of these during LTO.  */
	if (polymorphic_type_binfo_p (BINFO_BASE_BINFO (binfo, i)))
	  {
	    odr_type base = get_odr_type (BINFO_TYPE (BINFO_BASE_BINFO (binfo,
									i)),
					  true);
	    base->derived_types.safe_push (val);
	    val->bases.safe_push (base);
	  }
      /* First record bases, then add into array so ids are increasing.  */
      if (odr_types_ptr)
        val->id = odr_types.length ();
      vec_safe_push (odr_types_ptr, val);
    }
  return val;
}
Exemplo n.º 13
0
void
release_phi_node (gimple phi)
{
  size_t bucket;
  size_t len = gimple_phi_capacity (phi);
  size_t x;

  for (x = 0; x < gimple_phi_num_args (phi); x++)
    {
      use_operand_p  imm;
      imm = gimple_phi_arg_imm_use_ptr (phi, x);
      delink_imm_use (imm);
    }

  bucket = len > NUM_BUCKETS - 1 ? NUM_BUCKETS - 1 : len;
  bucket -= 2;
  vec_safe_push (free_phinodes[bucket], phi);
  free_phinode_count++;
}
Exemplo n.º 14
0
void
redirect_edge_var_map_add (edge e, tree result, tree def, source_location locus)
{
  void **slot;
  edge_var_map_vector *head;
  edge_var_map new_node;

  if (edge_var_maps == NULL)
    edge_var_maps = pointer_map_create ();

  slot = pointer_map_insert (edge_var_maps, e);
  head = (edge_var_map_vector *) *slot;
  if (!head)
    vec_safe_reserve (head, 5);
  new_node.def = def;
  new_node.result = result;
  new_node.locus = locus;

  vec_safe_push (head, new_node);
  *slot = head;
}
Exemplo n.º 15
0
static tree
replace_invariant_exprs (tree *node)
{
  size_t ix = 0;
  tree node_list = NULL_TREE;
  tree t = NULL_TREE, new_var = NULL_TREE;
  struct inv_list data;

  data.list_values = NULL;
  data.replacement = NULL;
  data.additional_tcodes = NULL;
  cp_walk_tree (node, find_inv_trees, (void *) &data, NULL);

  if (vec_safe_length (data.list_values))
    {
      node_list = push_stmt_list ();
      for (ix = 0; vec_safe_iterate (data.list_values, ix, &t); ix++)
	{ 
	  /* Sometimes, when comma_expr has a function call in it, it will
	     typecast it to void.  Find_inv_trees finds those nodes and so
	     if it void type, then don't bother creating a new var to hold 
	     the return value.   */
	  if (VOID_TYPE_P (TREE_TYPE (t)))
	    {
	      finish_expr_stmt (t);
	      new_var = void_node;
	    }
	  else 
	    new_var = get_temp_regvar (TREE_TYPE (t), t); 
	  vec_safe_push (data.replacement, new_var);
	}
      cp_walk_tree (node, replace_inv_trees, (void *) &data, NULL);
      node_list = pop_stmt_list (node_list);
    }
  return node_list;
}
Exemplo n.º 16
0
static tree
expand_sec_reduce_builtin (tree an_builtin_fn, tree *new_var)
{
  tree new_var_type = NULL_TREE, func_parm, new_yes_expr, new_no_expr;
  tree array_ind_value = NULL_TREE, new_no_ind, new_yes_ind, new_no_list;
  tree new_yes_list, new_cond_expr, new_expr = NULL_TREE; 
  vec<tree, va_gc> *array_list = NULL, *array_operand = NULL;
  size_t list_size = 0, rank = 0, ii = 0;
  tree  body, an_init, loop_with_init = alloc_stmt_list ();
  tree array_op0, comp_node = NULL_TREE;
  tree call_fn = NULL_TREE, identity_value = NULL_TREE;
  tree init = NULL_TREE, cond_init = NULL_TREE;
  enum tree_code code = NOP_EXPR;
  location_t location = UNKNOWN_LOCATION;
  vec<vec<an_parts> > an_info = vNULL;
  auto_vec<an_loop_parts> an_loop_info;
  enum built_in_function an_type =
    is_cilkplus_reduce_builtin (CALL_EXPR_FN (an_builtin_fn));
  vec <tree, va_gc> *func_args;
  
  if (an_type == BUILT_IN_NONE)
    return NULL_TREE;

  if (an_type != BUILT_IN_CILKPLUS_SEC_REDUCE
      && an_type != BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING)
    func_parm = CALL_EXPR_ARG (an_builtin_fn, 0);
  else
    {
      call_fn = CALL_EXPR_ARG (an_builtin_fn, 2);

      /* We need to do this because we are "faking" the builtin function types,
	 so the compiler does a bunch of typecasts and this will get rid of
	 all that!  */
      STRIP_NOPS (call_fn);
      if (TREE_CODE (call_fn) != OVERLOAD
	  && TREE_CODE (call_fn) != FUNCTION_DECL)
	call_fn = TREE_OPERAND (call_fn, 0);
      identity_value = CALL_EXPR_ARG (an_builtin_fn, 0);
      func_parm = CALL_EXPR_ARG (an_builtin_fn, 1);
      STRIP_NOPS (identity_value);
    }
  STRIP_NOPS (func_parm);
  
  location = EXPR_LOCATION (an_builtin_fn);
  
  /* Note about using find_rank (): If find_rank returns false, then it must
     have already reported an error, thus we just return an error_mark_node
     without any doing any error emission.  */  
  if (!find_rank (location, an_builtin_fn, an_builtin_fn, true, &rank))
      return error_mark_node;
  if (rank == 0)
    {
      error_at (location, "Invalid builtin arguments");
      return error_mark_node;
    }
  else if (rank > 1 
	   && (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND
	       || an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND))
    { 
      error_at (location, "__sec_reduce_min_ind or __sec_reduce_max_ind cannot "
		"have arrays with dimension greater than 1");
      return error_mark_node;
    }
  
  extract_array_notation_exprs (func_parm, true, &array_list);
  list_size = vec_safe_length (array_list);
  switch (an_type)
    {
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ADD:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUL:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN:
      new_var_type = TREE_TYPE ((*array_list)[0]);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_ZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_ZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_NONZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_NONZERO:
      new_var_type = boolean_type_node;
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND:
      new_var_type = size_type_node;
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE:
      if (call_fn && identity_value)
	new_var_type = TREE_TYPE ((*array_list)[0]);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING:
      new_var_type = NULL_TREE;
      break;
    default:
      gcc_unreachable ();
    }
    
  if (new_var_type && TREE_CODE (new_var_type) == ARRAY_TYPE)
    new_var_type = TREE_TYPE (new_var_type);
  an_loop_info.safe_grow_cleared (rank);

  an_init = push_stmt_list ();

  /* Assign the array notation components to variable so that they can satisfy
     the exec-once rule.  */
  for (ii = 0; ii < list_size; ii++)
    if (TREE_CODE ((*array_list)[ii]) == ARRAY_NOTATION_REF)
      {
	tree anode = (*array_list)[ii];
	make_triplet_val_inv (&ARRAY_NOTATION_START (anode));
	make_triplet_val_inv (&ARRAY_NOTATION_LENGTH (anode));
	make_triplet_val_inv (&ARRAY_NOTATION_STRIDE (anode));
      }
  cilkplus_extract_an_triplets (array_list, list_size, rank, &an_info);
  for (ii = 0; ii < rank; ii++)
    {
      tree typ = ptrdiff_type_node;

      /* In this place, we are using get_temp_regvar instead of 
	 create_temporary_var if an_type is SEC_REDUCE_MAX/MIN_IND because
	 the array_ind_value depends on this value being initalized to 0.  */
      if (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND
	  || an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND) 
	an_loop_info[ii].var = get_temp_regvar (typ, build_zero_cst (typ));
      else
	{
	  an_loop_info[ii].var = create_temporary_var (typ);
	  add_decl_expr (an_loop_info[ii].var);
	}
      an_loop_info[ii].ind_init = 
	build_x_modify_expr (location, an_loop_info[ii].var, INIT_EXPR,
			     build_zero_cst (typ), tf_warning_or_error);
    }
  array_operand = create_array_refs (location, an_info, an_loop_info,
				      list_size, rank);
  replace_array_notations (&func_parm, true, array_list, array_operand);
  
  if (!TREE_TYPE (func_parm))      
    TREE_TYPE (func_parm) = TREE_TYPE ((*array_list)[0]);
  
  create_cmp_incr (location, &an_loop_info, rank, an_info, tf_warning_or_error);
  if (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND
      || an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND) 
    array_ind_value = get_temp_regvar (TREE_TYPE (func_parm), func_parm);

  array_op0 = (*array_operand)[0];
  if (INDIRECT_REF_P (array_op0))
    array_op0 = TREE_OPERAND (array_op0, 0);
  switch (an_type)
    {
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ADD:
      code = PLUS_EXPR;
      init = build_zero_cst (new_var_type);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUL:
      code = MULT_EXPR;
      init = build_one_cst (new_var_type);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_ZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_NONZERO:
      code = ((an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_ZERO) ? EQ_EXPR
	: NE_EXPR);
      init = build_zero_cst (new_var_type);
      cond_init = build_one_cst (new_var_type);
      comp_node = build_zero_cst (TREE_TYPE (func_parm));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_ZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_NONZERO:
      code = ((an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_ZERO) ? NE_EXPR
	: EQ_EXPR);
      init = build_one_cst (new_var_type);
      cond_init = build_zero_cst (new_var_type);
      comp_node = build_zero_cst (TREE_TYPE (func_parm));
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX:
      code = MAX_EXPR;
      init = (TYPE_MIN_VALUE (new_var_type) ? TYPE_MIN_VALUE (new_var_type)
	: func_parm);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN:
      code = MIN_EXPR;
      init = (TYPE_MAX_VALUE (new_var_type) ? TYPE_MAX_VALUE (new_var_type)
	: func_parm);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND:
      code = (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND ? LE_EXPR
	: GE_EXPR);
      init = an_loop_info[0].var;
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE:
      init = identity_value;
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING:
      init = NULL_TREE;
      break;
    default:
      gcc_unreachable ();
    }

  if (an_type != BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING)
    *new_var = get_temp_regvar (new_var_type, init);
  else
    *new_var = NULL_TREE;

  switch (an_type)
    {
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ADD:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUL:      
      new_expr = build_x_modify_expr (location, *new_var, code, func_parm,
				      tf_warning_or_error);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_ZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ALL_NONZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_ZERO:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_ANY_NONZERO:
      /* In all these cases, assume the false case is true and as soon as
	 we find a true case,  set the true flag on and latch it in.  */
      new_yes_expr = build_x_modify_expr (location, *new_var, NOP_EXPR,
					  cond_init, tf_warning_or_error);
      new_no_expr = build_x_modify_expr (location, *new_var, NOP_EXPR,
					 *new_var, tf_warning_or_error);
      new_cond_expr = build_x_binary_op
	(location, code, func_parm, TREE_CODE (func_parm), comp_node,
	 TREE_CODE (comp_node), NULL, tf_warning_or_error);
      new_expr = build_x_conditional_expr (location, new_cond_expr,
					   new_yes_expr, new_no_expr,
					   tf_warning_or_error);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN:
      new_cond_expr = build_x_binary_op
	(location, code, *new_var, TREE_CODE (*new_var), func_parm,
	 TREE_CODE (func_parm), NULL, tf_warning_or_error);
      new_expr = build_x_modify_expr (location, *new_var, NOP_EXPR, func_parm,
				      tf_warning_or_error);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MAX_IND:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND:
      new_yes_expr = build_x_modify_expr (location, array_ind_value, NOP_EXPR,
					  func_parm, tf_warning_or_error);
      new_no_expr = build_x_modify_expr (location, array_ind_value, NOP_EXPR,
					 array_ind_value, tf_warning_or_error);
      if (list_size > 1)
	new_yes_ind = build_x_modify_expr (location, *new_var, NOP_EXPR,
					   an_loop_info[0].var,
					   tf_warning_or_error);
      else
	new_yes_ind = build_x_modify_expr (location, *new_var, NOP_EXPR,
					   TREE_OPERAND (array_op0, 1),
					   tf_warning_or_error);
      new_no_ind = build_x_modify_expr (location, *new_var, NOP_EXPR, *new_var,
					tf_warning_or_error);
      new_yes_list = alloc_stmt_list ();
      append_to_statement_list (new_yes_ind, &new_yes_list);
      append_to_statement_list (new_yes_expr, &new_yes_list);

      new_no_list = alloc_stmt_list ();
      append_to_statement_list (new_no_ind, &new_no_list);
      append_to_statement_list (new_no_expr, &new_no_list);

      new_cond_expr = build_x_binary_op (location, code, array_ind_value,
					 TREE_CODE (array_ind_value), func_parm,
					 TREE_CODE (func_parm), NULL,
					 tf_warning_or_error);
      new_expr = build_x_conditional_expr (location, new_cond_expr,
					   new_yes_list, new_no_list,
					   tf_warning_or_error);
      break;
    case BUILT_IN_CILKPLUS_SEC_REDUCE:
    case BUILT_IN_CILKPLUS_SEC_REDUCE_MUTATING:
      func_args = make_tree_vector ();
      if (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE)
	vec_safe_push (func_args, *new_var);
      else
	vec_safe_push (func_args, identity_value);
      vec_safe_push (func_args, func_parm);

      new_expr = finish_call_expr (call_fn, &func_args, false, true,
				   tf_warning_or_error);
      if (an_type == BUILT_IN_CILKPLUS_SEC_REDUCE)
	new_expr = build_x_modify_expr (location, *new_var, NOP_EXPR, new_expr,
					tf_warning_or_error);
      release_tree_vector (func_args);
      break;
    default:
      gcc_unreachable ();
    }
  an_init = pop_stmt_list (an_init);
  append_to_statement_list (an_init, &loop_with_init);
  body = new_expr;

  for (ii = 0; ii < rank; ii++)
    {
      tree new_loop = push_stmt_list ();
      create_an_loop (an_loop_info[ii].ind_init, an_loop_info[ii].cmp,
		      an_loop_info[ii].incr, body);
      body = pop_stmt_list (new_loop);
    }
  append_to_statement_list (body, &loop_with_init);

  release_vec_vec (an_info);

  return loop_with_init;
}
Exemplo n.º 17
0
static tree
expand_unary_array_notation_exprs (tree orig_stmt)
{
  vec<tree, va_gc> *array_list = NULL, *array_operand = NULL;
  size_t list_size = 0, rank = 0, ii = 0;
  tree body;
  tree builtin_loop, stmt = NULL_TREE, new_var = NULL_TREE;
  location_t location = EXPR_LOCATION (orig_stmt);
  tree an_init, loop_with_init = alloc_stmt_list ();
  vec<vec<an_parts> > an_info = vNULL;
  auto_vec<an_loop_parts> an_loop_info;
  
  if (!find_rank (location, orig_stmt, orig_stmt, true, &rank))
    return error_mark_node;
  if (rank == 0)
    return orig_stmt;  
  
  extract_array_notation_exprs (orig_stmt, false, &array_list);
  list_size = vec_safe_length (array_list);
  location = EXPR_LOCATION (orig_stmt);
  stmt = NULL_TREE;
  for (ii = 0; ii < list_size; ii++)
    if (TREE_CODE ((*array_list)[ii]) == CALL_EXPR
	|| TREE_CODE ((*array_list)[ii]) == AGGR_INIT_EXPR)
      {
	tree list_node = (*array_list)[ii];
	builtin_loop = expand_sec_reduce_builtin (list_node, &new_var);
	if (builtin_loop == error_mark_node)
	  return error_mark_node;
	else if (builtin_loop)
	  {
	    vec<tree, va_gc> *sub_list = NULL, *new_var_list = NULL;
	    stmt = alloc_stmt_list ();
	    append_to_statement_list (builtin_loop, &stmt);
	    vec_safe_push (sub_list, list_node);
	    vec_safe_push (new_var_list, new_var);
	    replace_array_notations (&orig_stmt, false, sub_list, new_var_list);
	  }	
      }
  if (stmt != NULL_TREE)
    append_to_statement_list (finish_expr_stmt (orig_stmt), &stmt);
  else
    stmt = orig_stmt;
  rank = 0;
  list_size = 0;
  array_list = NULL;
  extract_array_notation_exprs (stmt, true, &array_list);
  list_size = vec_safe_length (array_list);

  if (!find_rank (EXPR_LOCATION (stmt), stmt, stmt, true, &rank))
    return error_mark_node;
  if (rank == 0 || list_size == 0)
    return stmt;
  an_loop_info.safe_grow_cleared (rank);
  an_init = push_stmt_list ();  
    /* Assign the array notation components to variable so that they can satisfy
     the exec-once rule.  */
  for (ii = 0; ii < list_size; ii++)
    {
      tree array_node = (*array_list)[ii];
      make_triplet_val_inv (&ARRAY_NOTATION_START (array_node));
      make_triplet_val_inv (&ARRAY_NOTATION_LENGTH (array_node));
      make_triplet_val_inv (&ARRAY_NOTATION_STRIDE (array_node));
    }
  cilkplus_extract_an_triplets (array_list, list_size, rank, &an_info);
  
  for (ii = 0; ii < rank; ii++)
    {
      tree typ = ptrdiff_type_node;
      an_loop_info[ii].var = create_temporary_var (typ);
      add_decl_expr (an_loop_info[ii].var);
      an_loop_info[ii].ind_init = build_x_modify_expr
	(location, an_loop_info[ii].var, INIT_EXPR, build_zero_cst (typ), 
	 tf_warning_or_error);
    }
  array_operand = create_array_refs (location, an_info, an_loop_info,
				     list_size, rank);
  replace_array_notations (&stmt, true, array_list, array_operand);
  create_cmp_incr (location, &an_loop_info, rank, an_info, tf_warning_or_error);
  
  an_init = pop_stmt_list (an_init);
  append_to_statement_list (an_init, &loop_with_init);
  body = stmt;
  
  for (ii = 0; ii < rank; ii++)
    {
      tree new_loop = push_stmt_list ();
      create_an_loop (an_loop_info[ii].ind_init, an_loop_info[ii].cmp,
		      an_loop_info[ii].incr, body);
      body = pop_stmt_list (new_loop);
    }
  append_to_statement_list (body, &loop_with_init);

  release_vec_vec (an_info);

  return loop_with_init;
}
Exemplo n.º 18
0
void
maybe_add_lambda_conv_op (tree type)
{
  bool nested = (cfun != NULL);
  bool nested_def = decl_function_context (TYPE_MAIN_DECL (type));
  tree callop = lambda_function (type);

  if (LAMBDA_EXPR_CAPTURE_LIST (CLASSTYPE_LAMBDA_EXPR (type)) != NULL_TREE)
    return;

  if (processing_template_decl)
    return;

  bool const generic_lambda_p
    = (DECL_TEMPLATE_INFO (callop)
    && DECL_TEMPLATE_RESULT (DECL_TI_TEMPLATE (callop)) == callop);

  if (!generic_lambda_p && DECL_INITIAL (callop) == NULL_TREE)
    {
      /* If the op() wasn't instantiated due to errors, give up.  */
      gcc_assert (errorcount || sorrycount);
      return;
    }

  /* Non-template conversion operators are defined directly with build_call_a
     and using DIRECT_ARGVEC for arguments (including 'this').  Templates are
     deferred and the CALL is built in-place.  In the case of a deduced return
     call op, the decltype expression, DECLTYPE_CALL, used as a substitute for
     the return type is also built in-place.  The arguments of DECLTYPE_CALL in
     the return expression may differ in flags from those in the body CALL.  In
     particular, parameter pack expansions are marked PACK_EXPANSION_LOCAL_P in
     the body CALL, but not in DECLTYPE_CALL.  */

  vec<tree, va_gc> *direct_argvec = 0;
  tree decltype_call = 0, call = 0;
  tree fn_result = TREE_TYPE (TREE_TYPE (callop));

  if (generic_lambda_p)
    {
      /* Prepare the dependent member call for the static member function
	 '_FUN' and, potentially, prepare another call to be used in a decltype
	 return expression for a deduced return call op to allow for simple
	 implementation of the conversion operator.  */

      tree instance = build_nop (type, null_pointer_node);
      tree objfn = build_min (COMPONENT_REF, NULL_TREE,
			      instance, DECL_NAME (callop), NULL_TREE);
      int nargs = list_length (DECL_ARGUMENTS (callop)) - 1;

      call = prepare_op_call (objfn, nargs);
      if (type_uses_auto (fn_result))
	decltype_call = prepare_op_call (objfn, nargs);
    }
  else
    {
      direct_argvec = make_tree_vector ();
      direct_argvec->quick_push (build1 (NOP_EXPR,
					 TREE_TYPE (DECL_ARGUMENTS (callop)),
					 null_pointer_node));
    }

  /* Copy CALLOP's argument list (as per 'copy_list') as FN_ARGS in order to
     declare the static member function "_FUN" below.  For each arg append to
     DIRECT_ARGVEC (for the non-template case) or populate the pre-allocated
     call args (for the template case).  If a parameter pack is found, expand
     it, flagging it as PACK_EXPANSION_LOCAL_P for the body call.  */

  tree fn_args = NULL_TREE;
  {
    int ix = 0;
    tree src = DECL_CHAIN (DECL_ARGUMENTS (callop));
    tree tgt;

    while (src)
      {
	tree new_node = copy_node (src);

	if (!fn_args)
	  fn_args = tgt = new_node;
	else
	  {
	    TREE_CHAIN (tgt) = new_node;
	    tgt = new_node;
	  }

	mark_exp_read (tgt);

	if (generic_lambda_p)
	  {
	    if (DECL_PACK_P (tgt))
	      {
		tree a = make_pack_expansion (tgt);
		if (decltype_call)
		  CALL_EXPR_ARG (decltype_call, ix) = copy_node (a);
		PACK_EXPANSION_LOCAL_P (a) = true;
		CALL_EXPR_ARG (call, ix) = a;
	      }
	    else
	      {
		tree a = convert_from_reference (tgt);
		CALL_EXPR_ARG (call, ix) = a;
		if (decltype_call)
		  CALL_EXPR_ARG (decltype_call, ix) = copy_node (a);
	      }
	    ++ix;
	  }
	else
	  vec_safe_push (direct_argvec, tgt);

	src = TREE_CHAIN (src);
      }
  }


  if (generic_lambda_p)
    {
      if (decltype_call)
	{
	  ++processing_template_decl;
	  fn_result = finish_decltype_type
	    (decltype_call, /*id_expression_or_member_access_p=*/false,
	     tf_warning_or_error);
	  --processing_template_decl;
	}
    }
  else
    call = build_call_a (callop,
			 direct_argvec->length (),
			 direct_argvec->address ());

  CALL_FROM_THUNK_P (call) = 1;

  tree stattype = build_function_type (fn_result, FUNCTION_ARG_CHAIN (callop));

  /* First build up the conversion op.  */

  tree rettype = build_pointer_type (stattype);
  tree name = mangle_conv_op_name_for_type (rettype);
  tree thistype = cp_build_qualified_type (type, TYPE_QUAL_CONST);
  tree fntype = build_method_type_directly (thistype, rettype, void_list_node);
  tree convfn = build_lang_decl (FUNCTION_DECL, name, fntype);
  tree fn = convfn;
  DECL_SOURCE_LOCATION (fn) = DECL_SOURCE_LOCATION (callop);

  if (TARGET_PTRMEMFUNC_VBIT_LOCATION == ptrmemfunc_vbit_in_pfn
      && DECL_ALIGN (fn) < 2 * BITS_PER_UNIT)
    DECL_ALIGN (fn) = 2 * BITS_PER_UNIT;

  SET_OVERLOADED_OPERATOR_CODE (fn, TYPE_EXPR);
  grokclassfn (type, fn, NO_SPECIAL);
  set_linkage_according_to_type (type, fn);
  rest_of_decl_compilation (fn, toplevel_bindings_p (), at_eof);
  DECL_IN_AGGR_P (fn) = 1;
  DECL_ARTIFICIAL (fn) = 1;
  DECL_NOT_REALLY_EXTERN (fn) = 1;
  DECL_DECLARED_INLINE_P (fn) = 1;
  DECL_ARGUMENTS (fn) = build_this_parm (fntype, TYPE_QUAL_CONST);
  if (nested_def)
    DECL_INTERFACE_KNOWN (fn) = 1;

  if (generic_lambda_p)
    fn = add_inherited_template_parms (fn, DECL_TI_TEMPLATE (callop));

  add_method (type, fn, NULL_TREE);

  /* Generic thunk code fails for varargs; we'll complain in mark_used if
     the conversion op is used.  */
  if (varargs_function_p (callop))
    {
      DECL_DELETED_FN (fn) = 1;
      return;
    }

  /* Now build up the thunk to be returned.  */

  name = get_identifier ("_FUN");
  tree statfn = build_lang_decl (FUNCTION_DECL, name, stattype);
  fn = statfn;
  DECL_SOURCE_LOCATION (fn) = DECL_SOURCE_LOCATION (callop);
  if (TARGET_PTRMEMFUNC_VBIT_LOCATION == ptrmemfunc_vbit_in_pfn
      && DECL_ALIGN (fn) < 2 * BITS_PER_UNIT)
    DECL_ALIGN (fn) = 2 * BITS_PER_UNIT;
  grokclassfn (type, fn, NO_SPECIAL);
  set_linkage_according_to_type (type, fn);
  rest_of_decl_compilation (fn, toplevel_bindings_p (), at_eof);
  DECL_IN_AGGR_P (fn) = 1;
  DECL_ARTIFICIAL (fn) = 1;
  DECL_NOT_REALLY_EXTERN (fn) = 1;
  DECL_DECLARED_INLINE_P (fn) = 1;
  DECL_STATIC_FUNCTION_P (fn) = 1;
  DECL_ARGUMENTS (fn) = fn_args;
  for (tree arg = fn_args; arg; arg = DECL_CHAIN (arg))
    {
      /* Avoid duplicate -Wshadow warnings.  */
      DECL_NAME (arg) = NULL_TREE;
      DECL_CONTEXT (arg) = fn;
    }
  if (nested_def)
    DECL_INTERFACE_KNOWN (fn) = 1;

  if (generic_lambda_p)
    fn = add_inherited_template_parms (fn, DECL_TI_TEMPLATE (callop));

  add_method (type, fn, NULL_TREE);

  if (nested)
    push_function_context ();
  else
    /* Still increment function_depth so that we don't GC in the
       middle of an expression.  */
    ++function_depth;

  /* Generate the body of the thunk.  */

  start_preparsed_function (statfn, NULL_TREE,
			    SF_PRE_PARSED | SF_INCLASS_INLINE);
  if (DECL_ONE_ONLY (statfn))
    {
      /* Put the thunk in the same comdat group as the call op.  */
      cgraph_node::get_create (statfn)->add_to_same_comdat_group
	(cgraph_node::get_create (callop));
    }
  tree body = begin_function_body ();
  tree compound_stmt = begin_compound_stmt (0);
  if (!generic_lambda_p)
    {
      set_flags_from_callee (call);
      if (MAYBE_CLASS_TYPE_P (TREE_TYPE (call)))
	call = build_cplus_new (TREE_TYPE (call), call, tf_warning_or_error);
    }
  call = convert_from_reference (call);
  finish_return_stmt (call);

  finish_compound_stmt (compound_stmt);
  finish_function_body (body);

  fn = finish_function (/*inline*/2);
  if (!generic_lambda_p)
    expand_or_defer_fn (fn);

  /* Generate the body of the conversion op.  */

  start_preparsed_function (convfn, NULL_TREE,
			    SF_PRE_PARSED | SF_INCLASS_INLINE);
  body = begin_function_body ();
  compound_stmt = begin_compound_stmt (0);

  /* decl_needed_p needs to see that it's used.  */
  TREE_USED (statfn) = 1;
  finish_return_stmt (decay_conversion (statfn, tf_warning_or_error));

  finish_compound_stmt (compound_stmt);
  finish_function_body (body);

  fn = finish_function (/*inline*/2);
  if (!generic_lambda_p)
    expand_or_defer_fn (fn);

  if (nested)
    pop_function_context ();
  else
    --function_depth;
}
Exemplo n.º 19
0
static tree
fix_conditional_array_notations_1 (tree stmt)
{
  vec<tree, va_gc> *array_list = NULL, *array_operand = NULL;
  size_t list_size = 0;
  tree cond = NULL_TREE, builtin_loop = NULL_TREE, new_var = NULL_TREE;
  size_t rank = 0, ii = 0;
  tree loop_init;
  location_t location = EXPR_LOCATION (stmt);
  tree body = NULL_TREE, loop_with_init = alloc_stmt_list ();
  vec<vec<an_parts> > an_info = vNULL;
  vec<an_loop_parts> an_loop_info = vNULL;
 
  if (TREE_CODE (stmt) == COND_EXPR)
    cond = COND_EXPR_COND (stmt);
  else if (TREE_CODE (stmt) == SWITCH_EXPR)
    cond = SWITCH_COND (stmt);
  else if (truth_value_p (TREE_CODE (stmt)))
    cond = TREE_OPERAND (stmt, 0);
  else
    /* Otherwise dont even touch the statement.  */
    return stmt;

  if (!find_rank (location, cond, cond, false, &rank))
    return error_mark_node;
  
  extract_array_notation_exprs (stmt, false, &array_list);
  loop_init = push_stmt_list ();
  for (ii = 0; ii < vec_safe_length (array_list); ii++)
    { 
      tree array_node = (*array_list)[ii];
      if (TREE_CODE (array_node) == CALL_EXPR)
	{
	  builtin_loop = fix_builtin_array_notation_fn (array_node, &new_var);
	  if (builtin_loop == error_mark_node)
	    {
	      add_stmt (error_mark_node);
	      pop_stmt_list (loop_init);
	      return loop_init;
	    }
	  else if (builtin_loop)
	    {
	      vec <tree, va_gc>* sub_list = NULL, *new_var_list = NULL;
	      vec_safe_push (sub_list, array_node);
	      vec_safe_push (new_var_list, new_var);
	      add_stmt (builtin_loop);
	      replace_array_notations (&stmt, false, sub_list, new_var_list); 
	    }
	}
    }
  if (!find_rank (location, stmt, stmt, true, &rank))
    {
      pop_stmt_list (loop_init);
      return error_mark_node;
    }
  if (rank == 0)
    {
      add_stmt (stmt);
      pop_stmt_list (loop_init); 
      return loop_init;
    }  
  extract_array_notation_exprs (stmt, true, &array_list);

  if (vec_safe_length (array_list) == 0)
    return stmt;

  list_size = vec_safe_length (array_list);
  an_loop_info.safe_grow_cleared (rank);
  
  for (ii = 0; ii < list_size; ii++)
    if ((*array_list)[ii]
	&& TREE_CODE ((*array_list)[ii]) == ARRAY_NOTATION_REF)
      {
	tree array_node = (*array_list)[ii];
	make_triplet_val_inv (location, &ARRAY_NOTATION_START (array_node));
	make_triplet_val_inv (location, &ARRAY_NOTATION_LENGTH (array_node));
	make_triplet_val_inv (location, &ARRAY_NOTATION_STRIDE (array_node));
      }
  cilkplus_extract_an_triplets (array_list, list_size, rank, &an_info);
  for (ii = 0; ii < rank; ii++)
    {
      an_loop_info[ii].var = create_tmp_var (integer_type_node);
      an_loop_info[ii].ind_init =
	build_modify_expr (location, an_loop_info[ii].var,
			   TREE_TYPE (an_loop_info[ii].var), NOP_EXPR,
			   location,
			   build_int_cst (TREE_TYPE (an_loop_info[ii].var), 0),
			   TREE_TYPE (an_loop_info[ii].var));
    }
  array_operand = create_array_refs (location, an_info, an_loop_info,
				     list_size, rank);
  replace_array_notations (&stmt, true, array_list, array_operand);
  create_cmp_incr (location, &an_loop_info, rank, an_info);
  
  loop_init = pop_stmt_list (loop_init);
  body = stmt;
  append_to_statement_list_force (loop_init, &loop_with_init);

  for (ii = 0; ii < rank; ii++)
    {
      tree new_loop = push_stmt_list ();
      add_stmt (an_loop_info[ii].ind_init);
      c_finish_loop (location, an_loop_info[ii].cmp, an_loop_info[ii].incr,
		     body, NULL_TREE, NULL_TREE, true);
      body = pop_stmt_list (new_loop);
    }
  append_to_statement_list_force (body, &loop_with_init);

  an_loop_info.release ();
  an_info.release ();

  return loop_with_init;
}
Exemplo n.º 20
0
tree
build_array_notation_expr (location_t location, tree lhs, tree lhs_origtype,
			   enum tree_code modifycode, location_t rhs_loc,
			   tree rhs, tree rhs_origtype)
{
  bool found_builtin_fn = false;
  tree array_expr_lhs = NULL_TREE, array_expr_rhs = NULL_TREE;
  tree array_expr = NULL_TREE;
  tree an_init = NULL_TREE;
  vec<tree> cond_expr = vNULL;
  tree body, loop_with_init = alloc_stmt_list();
  tree scalar_mods = NULL_TREE;
  vec<tree, va_gc> *rhs_array_operand = NULL, *lhs_array_operand = NULL;
  size_t lhs_rank = 0, rhs_rank = 0;
  size_t ii = 0;
  vec<tree, va_gc> *lhs_list = NULL, *rhs_list = NULL;
  tree new_modify_expr, new_var = NULL_TREE, builtin_loop = NULL_TREE;
  size_t rhs_list_size = 0, lhs_list_size = 0; 
  vec<vec<an_parts> > lhs_an_info = vNULL, rhs_an_info = vNULL;
  vec<an_loop_parts> lhs_an_loop_info = vNULL, rhs_an_loop_info = vNULL;
  
  /* If either of this is true, an error message must have been send out
     already.  Not necessary to send out multiple error messages.  */
  if (lhs == error_mark_node || rhs == error_mark_node)
    return error_mark_node;
  
  if (!find_rank (location, rhs, rhs, false, &rhs_rank))
    return error_mark_node;
  
  extract_array_notation_exprs (rhs, false, &rhs_list);
  rhs_list_size = vec_safe_length (rhs_list);
  an_init = push_stmt_list ();
  if (rhs_rank)
    {
      scalar_mods = replace_invariant_exprs (&rhs);
      if (scalar_mods)
	add_stmt (scalar_mods);
    }
  for (ii = 0; ii < rhs_list_size; ii++)
    {
      tree rhs_node = (*rhs_list)[ii];
      if (TREE_CODE (rhs_node) == CALL_EXPR)
	{
	  builtin_loop = fix_builtin_array_notation_fn (rhs_node, &new_var);
	  if (builtin_loop == error_mark_node)
	    {
	      pop_stmt_list (an_init); 
	      return error_mark_node;
	    }
	  else if (builtin_loop)
	    {
	      add_stmt (builtin_loop);
	      found_builtin_fn = true;
	      if (new_var)
		{
		  vec<tree, va_gc> *rhs_sub_list = NULL, *new_var_list = NULL;
		  vec_safe_push (rhs_sub_list, rhs_node);
		  vec_safe_push (new_var_list, new_var);
		  replace_array_notations (&rhs, false, rhs_sub_list,
					   new_var_list);
		}
	    }
	}
    }

  lhs_rank = 0;
  rhs_rank = 0;
  if (!find_rank (location, lhs, lhs, true, &lhs_rank))
    {
      pop_stmt_list (an_init);
      return error_mark_node;
    }
  
  if (!find_rank (location, rhs, rhs, true, &rhs_rank))
    {
      pop_stmt_list (an_init);
      return error_mark_node;
    }

  if (lhs_rank == 0 && rhs_rank == 0)
    {
      if (found_builtin_fn)
	{
	  new_modify_expr = build_modify_expr (location, lhs, lhs_origtype,
					       modifycode, rhs_loc, rhs,
					       rhs_origtype);
	  add_stmt (new_modify_expr);
	  pop_stmt_list (an_init);	  
	  return an_init;
	}
      else
	{
	  pop_stmt_list (an_init);
	  return NULL_TREE;
	}
    }
  rhs_list_size = 0;
  rhs_list = NULL;
  extract_array_notation_exprs (rhs, true, &rhs_list);
  extract_array_notation_exprs (lhs, true, &lhs_list);
  rhs_list_size = vec_safe_length (rhs_list);
  lhs_list_size = vec_safe_length (lhs_list);
  
  if (lhs_rank == 0 && rhs_rank != 0)
    {
      tree rhs_base = rhs;
      if (TREE_CODE (rhs_base) == ARRAY_NOTATION_REF)
	{
	  for (ii = 0; ii < (size_t) rhs_rank; ii++)
	    rhs_base = ARRAY_NOTATION_ARRAY (rhs);
      
	  error_at (location, "%qE cannot be scalar when %qE is not", lhs,
		    rhs_base);
	  return error_mark_node;
	}
      else
	{
	  error_at (location, "%qE cannot be scalar when %qE is not", lhs,
		    rhs_base);
	  return error_mark_node;
	}
    }
  if (lhs_rank != 0 && rhs_rank != 0 && lhs_rank != rhs_rank)
    {
      error_at (location, "rank mismatch between %qE and %qE", lhs, rhs);
      pop_stmt_list (an_init);
      return error_mark_node;
    }
  
  /* Here we assign the array notation components to variable so that we can
     satisfy the exec once rule.  */
  for (ii = 0; ii < lhs_list_size; ii++)
    { 
      tree array_node = (*lhs_list)[ii];
      make_triplet_val_inv (location, &ARRAY_NOTATION_START (array_node));
      make_triplet_val_inv (location, &ARRAY_NOTATION_LENGTH (array_node));
      make_triplet_val_inv (location, &ARRAY_NOTATION_STRIDE (array_node));
    }
  for (ii = 0; ii < rhs_list_size; ii++)
    if ((*rhs_list)[ii] && TREE_CODE ((*rhs_list)[ii]) == ARRAY_NOTATION_REF)
      {  
	tree array_node = (*rhs_list)[ii];
	make_triplet_val_inv (location, &ARRAY_NOTATION_START (array_node));
	make_triplet_val_inv (location, &ARRAY_NOTATION_LENGTH (array_node));
	make_triplet_val_inv (location, &ARRAY_NOTATION_STRIDE (array_node));
      }
  
  cond_expr.safe_grow_cleared (MAX (lhs_rank, rhs_rank));

  lhs_an_loop_info.safe_grow_cleared (lhs_rank);
  if (rhs_rank)
    rhs_an_loop_info.safe_grow_cleared (rhs_rank);

  cilkplus_extract_an_triplets (lhs_list, lhs_list_size, lhs_rank,
				&lhs_an_info);
  if (rhs_rank)
    {
      rhs_an_loop_info.safe_grow_cleared (rhs_rank);
      cilkplus_extract_an_triplets (rhs_list, rhs_list_size, rhs_rank,
				    &rhs_an_info);
    }
  if (length_mismatch_in_expr_p (EXPR_LOCATION (lhs), lhs_an_info)
      || (rhs_rank
	  && length_mismatch_in_expr_p (EXPR_LOCATION (rhs), rhs_an_info)))
    {
      pop_stmt_list (an_init);
      return error_mark_node;
    }
  if (lhs_list_size > 0 && rhs_list_size > 0 && lhs_rank > 0 && rhs_rank > 0
      && TREE_CODE (lhs_an_info[0][0].length) == INTEGER_CST
      && rhs_an_info[0][0].length
      && TREE_CODE (rhs_an_info[0][0].length) == INTEGER_CST)
    {
      HOST_WIDE_INT l_length = int_cst_value (lhs_an_info[0][0].length);
      HOST_WIDE_INT r_length = int_cst_value (rhs_an_info[0][0].length);
      /* Length can be negative or positive.  As long as the magnitude is OK,
	 then the array notation is valid.  */
      if (absu_hwi (l_length) != absu_hwi (r_length))
	{
	  error_at (location, "length mismatch between LHS and RHS");
	  pop_stmt_list (an_init);
	  return error_mark_node;
	}
    }
  for (ii = 0; ii < lhs_rank; ii++)
    if (lhs_an_info[0][ii].is_vector)
      {
	lhs_an_loop_info[ii].var = create_tmp_var (integer_type_node);
	lhs_an_loop_info[ii].ind_init = build_modify_expr
	  (location, lhs_an_loop_info[ii].var,
	   TREE_TYPE (lhs_an_loop_info[ii].var), NOP_EXPR,
	   location, build_zero_cst (TREE_TYPE (lhs_an_loop_info[ii].var)),
	   TREE_TYPE (lhs_an_loop_info[ii].var));
      }
  for (ii = 0; ii < rhs_rank; ii++)
    {
      /* When we have a polynomial, we assume that the indices are of type 
	 integer.  */
      rhs_an_loop_info[ii].var = create_tmp_var (integer_type_node);
      rhs_an_loop_info[ii].ind_init = build_modify_expr
	(location, rhs_an_loop_info[ii].var,
	 TREE_TYPE (rhs_an_loop_info[ii].var), NOP_EXPR,
	 location, build_int_cst (TREE_TYPE (rhs_an_loop_info[ii].var), 0),
	 TREE_TYPE (rhs_an_loop_info[ii].var));
    }
  if (lhs_rank)
    {
      lhs_array_operand = create_array_refs
	(location, lhs_an_info, lhs_an_loop_info, lhs_list_size, lhs_rank);
      replace_array_notations (&lhs, true, lhs_list, lhs_array_operand);
      array_expr_lhs = lhs;
    }
  if (rhs_array_operand)
    vec_safe_truncate (rhs_array_operand, 0);
  if (rhs_rank)
    {
      rhs_array_operand = create_array_refs
	(location, rhs_an_info, rhs_an_loop_info, rhs_list_size, rhs_rank);
      replace_array_notations (&rhs, true, rhs_list, rhs_array_operand);
      vec_safe_truncate (rhs_array_operand, 0);
      rhs_array_operand = fix_sec_implicit_args (location, rhs_list,
						 rhs_an_loop_info, rhs_rank,
						 rhs);
      if (!rhs_array_operand)
	return error_mark_node;
      replace_array_notations (&rhs, true, rhs_list, rhs_array_operand);
    }
  else if (rhs_list_size > 0)
    {
      rhs_array_operand = fix_sec_implicit_args (location, rhs_list,
						 lhs_an_loop_info, lhs_rank,
						 lhs);
      if (!rhs_array_operand)
	return error_mark_node;
      replace_array_notations (&rhs, true, rhs_list, rhs_array_operand);
    }
  array_expr_lhs = lhs;
  array_expr_rhs = rhs;
  array_expr = build_modify_expr (location, array_expr_lhs, lhs_origtype, 
				  modifycode, rhs_loc, array_expr_rhs, 
				  rhs_origtype);
  create_cmp_incr (location, &lhs_an_loop_info, lhs_rank, lhs_an_info);
  if (rhs_rank)
    create_cmp_incr (location, &rhs_an_loop_info, rhs_rank, rhs_an_info);
  
  for (ii = 0; ii < MAX (lhs_rank, rhs_rank); ii++)
    if (ii < lhs_rank && ii < rhs_rank)
      cond_expr[ii] = build2 (TRUTH_ANDIF_EXPR, boolean_type_node,
			      lhs_an_loop_info[ii].cmp,
			      rhs_an_loop_info[ii].cmp);
    else if (ii < lhs_rank && ii >= rhs_rank)
      cond_expr[ii] = lhs_an_loop_info[ii].cmp;
    else
      gcc_unreachable ();

  an_init = pop_stmt_list (an_init);
  append_to_statement_list_force (an_init, &loop_with_init);
  body = array_expr;
  for (ii = 0; ii < MAX (lhs_rank, rhs_rank); ii++)
    {
      tree incr_list = alloc_stmt_list ();
      tree new_loop = push_stmt_list ();
      if (lhs_rank)
	add_stmt (lhs_an_loop_info[ii].ind_init);
      if (rhs_rank)
	add_stmt (rhs_an_loop_info[ii].ind_init);
      if (lhs_rank)
	append_to_statement_list_force (lhs_an_loop_info[ii].incr, &incr_list);
      if (rhs_rank && rhs_an_loop_info[ii].incr)
	append_to_statement_list_force (rhs_an_loop_info[ii].incr, &incr_list);
      c_finish_loop (location, cond_expr[ii], incr_list, body, NULL_TREE,
		     NULL_TREE, true);
      body = pop_stmt_list (new_loop);
    }
  append_to_statement_list_force (body, &loop_with_init);

  lhs_an_info.release ();
  lhs_an_loop_info.release ();
  if (rhs_rank)
    {
      rhs_an_info.release ();
      rhs_an_loop_info.release ();
    }
  cond_expr.release ();
  return loop_with_init;
}
Exemplo n.º 21
0
tree
ubsan_create_data (const char *name, const location_t *ploc,
		   const struct ubsan_mismatch_data *mismatch, ...)
{
  va_list args;
  tree ret, t;
  tree fields[5];
  vec<tree, va_gc> *saved_args = NULL;
  size_t i = 0;
  location_t loc = UNKNOWN_LOCATION;

  /* Firstly, create a pointer to type descriptor type.  */
  tree td_type = ubsan_type_descriptor_type ();
  TYPE_READONLY (td_type) = 1;
  td_type = build_pointer_type (td_type);

  /* Create the structure type.  */
  ret = make_node (RECORD_TYPE);
  if (ploc != NULL)
    {
      loc = LOCATION_LOCUS (*ploc);
      fields[i] = build_decl (UNKNOWN_LOCATION, FIELD_DECL, NULL_TREE,
			      ubsan_source_location_type ());
      DECL_CONTEXT (fields[i]) = ret;
      i++;
    }

  va_start (args, mismatch);
  for (t = va_arg (args, tree); t != NULL_TREE;
       i++, t = va_arg (args, tree))
    {
      gcc_checking_assert (i < 3);
      /* Save the tree arguments for later use.  */
      vec_safe_push (saved_args, t);
      fields[i] = build_decl (UNKNOWN_LOCATION, FIELD_DECL, NULL_TREE,
			      td_type);
      DECL_CONTEXT (fields[i]) = ret;
      if (i)
	DECL_CHAIN (fields[i - 1]) = fields[i];
    }
  va_end (args);

  if (mismatch != NULL)
    {
      /* We have to add two more decls.  */
      fields[i] = build_decl (UNKNOWN_LOCATION, FIELD_DECL, NULL_TREE,
			      pointer_sized_int_node);
      DECL_CONTEXT (fields[i]) = ret;
      DECL_CHAIN (fields[i - 1]) = fields[i];
      i++;

      fields[i] = build_decl (UNKNOWN_LOCATION, FIELD_DECL, NULL_TREE,
			      unsigned_char_type_node);
      DECL_CONTEXT (fields[i]) = ret;
      DECL_CHAIN (fields[i - 1]) = fields[i];
      i++;
    }

  TYPE_FIELDS (ret) = fields[0];
  TYPE_NAME (ret) = get_identifier (name);
  layout_type (ret);

  /* Now, fill in the type.  */
  char tmp_name[32];
  static unsigned int ubsan_var_id_num;
  ASM_GENERATE_INTERNAL_LABEL (tmp_name, "Lubsan_data", ubsan_var_id_num++);
  tree var = build_decl (UNKNOWN_LOCATION, VAR_DECL, get_identifier (tmp_name),
			 ret);
  TREE_STATIC (var) = 1;
  TREE_PUBLIC (var) = 0;
  DECL_ARTIFICIAL (var) = 1;
  DECL_IGNORED_P (var) = 1;
  DECL_EXTERNAL (var) = 0;

  vec<constructor_elt, va_gc> *v;
  vec_alloc (v, i);
  tree ctor = build_constructor (ret, v);

  /* If desirable, set the __ubsan_source_location element.  */
  if (ploc != NULL)
    CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, ubsan_source_location (loc));

  size_t nelts = vec_safe_length (saved_args);
  for (i = 0; i < nelts; i++)
    {
      t = (*saved_args)[i];
      CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, t);
    }

  if (mismatch != NULL)
    {
      /* Append the pointer data.  */
      CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, mismatch->align);
      CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, mismatch->ckind);
    }

  TREE_CONSTANT (ctor) = 1;
  TREE_STATIC (ctor) = 1;
  DECL_INITIAL (var) = ctor;
  varpool_finalize_decl (var);

  return var;
}
Exemplo n.º 22
0
static tree
expand_an_in_modify_expr (location_t location, tree lhs,
			  enum tree_code modifycode, tree rhs,
			  tsubst_flags_t complain)
{
  tree array_expr_lhs = NULL_TREE, array_expr_rhs = NULL_TREE;
  tree array_expr = NULL_TREE;
  tree body = NULL_TREE;
  auto_vec<tree> cond_expr;
  vec<tree, va_gc> *lhs_array_operand = NULL, *rhs_array_operand = NULL;
  size_t lhs_rank = 0, rhs_rank = 0, ii = 0;
  vec<tree, va_gc> *rhs_list = NULL, *lhs_list = NULL;
  size_t rhs_list_size = 0, lhs_list_size = 0;
  tree new_modify_expr, new_var = NULL_TREE, builtin_loop, scalar_mods;
  bool found_builtin_fn = false;
  tree an_init, loop_with_init = alloc_stmt_list ();
  vec<vec<an_parts> > lhs_an_info = vNULL, rhs_an_info = vNULL;
  auto_vec<an_loop_parts> lhs_an_loop_info, rhs_an_loop_info;
  tree lhs_len, rhs_len;

  if (!find_rank (location, rhs, rhs, false, &rhs_rank))
    return error_mark_node;
  extract_array_notation_exprs (rhs, false, &rhs_list);
  rhs_list_size = vec_safe_length (rhs_list);
  an_init = push_stmt_list ();
  if (rhs_rank)
    {
      scalar_mods = replace_invariant_exprs (&rhs);
      if (scalar_mods)
	finish_expr_stmt (scalar_mods);
    }
  for (ii = 0; ii < rhs_list_size; ii++)
    {
      tree rhs_node = (*rhs_list)[ii];
      if (TREE_CODE (rhs_node) == CALL_EXPR)
	{
	  builtin_loop = expand_sec_reduce_builtin (rhs_node, &new_var);
	  if (builtin_loop == error_mark_node)
	    return error_mark_node;
	  else if (builtin_loop)
	    {
	      finish_expr_stmt (builtin_loop);
	      found_builtin_fn = true;
	      if (new_var)
		{
		  vec <tree, va_gc> *rhs_sub_list = NULL, *new_var_list = NULL;
		  vec_safe_push (rhs_sub_list, rhs_node);
		  vec_safe_push (new_var_list, new_var);
		  replace_array_notations (&rhs, false, rhs_sub_list,
					   new_var_list);
		}
	    }
	}
    }
  lhs_rank = 0;
  rhs_rank = 0;
  if (!find_rank (location, lhs, lhs, true, &lhs_rank)
      || !find_rank (location, rhs, rhs, true, &rhs_rank))
    {
      pop_stmt_list (an_init);
      return error_mark_node;
    }

  /* If both are scalar, then the only reason why we will get this far is if
     there is some array notations inside it and was using a builtin array
     notation functions.  If so, we have already broken those guys up and now 
     a simple build_x_modify_expr would do.  */
  if (lhs_rank == 0 && rhs_rank == 0)
    {
      if (found_builtin_fn)
	{
	  new_modify_expr = build_x_modify_expr (location, lhs,
						 modifycode, rhs, complain);
	  finish_expr_stmt (new_modify_expr);
	  pop_stmt_list (an_init);
	  return an_init;
	}
      else
	gcc_unreachable ();
    }

  /* If for some reason location is not set, then find if LHS or RHS has
     location info.  If so, then use that so we atleast have an idea.  */
  if (location == UNKNOWN_LOCATION)
    {
      if (EXPR_LOCATION (lhs) != UNKNOWN_LOCATION)
	location = EXPR_LOCATION (lhs);
      else if (EXPR_LOCATION (rhs) != UNKNOWN_LOCATION)
	location = EXPR_LOCATION (rhs);
    }
      
  /* We need this when we have a scatter issue.  */
  extract_array_notation_exprs (lhs, true, &lhs_list);
  rhs_list = NULL;
  extract_array_notation_exprs (rhs, true, &rhs_list);
  rhs_list_size = vec_safe_length (rhs_list);
  lhs_list_size = vec_safe_length (lhs_list);
    
  if (lhs_rank == 0 && rhs_rank != 0)
    {
      error_at (location, "%qE cannot be scalar when %qE is not", lhs, rhs);
      return error_mark_node;
    }
  if (lhs_rank != 0 && rhs_rank != 0 && lhs_rank != rhs_rank)
    {
      error_at (location, "rank mismatch between %qE and %qE", lhs, rhs);
      return error_mark_node;
    }
  
  /* Assign the array notation components to variable so that they can satisfy
     the execute-once rule.  */
  for (ii = 0; ii < lhs_list_size; ii++)
    {
      tree anode = (*lhs_list)[ii];
      make_triplet_val_inv (&ARRAY_NOTATION_START (anode));
      make_triplet_val_inv (&ARRAY_NOTATION_LENGTH (anode));
      make_triplet_val_inv (&ARRAY_NOTATION_STRIDE (anode));
    }
  for (ii = 0; ii < rhs_list_size; ii++)
    if ((*rhs_list)[ii] && TREE_CODE ((*rhs_list)[ii]) == ARRAY_NOTATION_REF)
      {
	tree aa = (*rhs_list)[ii];
	make_triplet_val_inv (&ARRAY_NOTATION_START (aa));
	make_triplet_val_inv (&ARRAY_NOTATION_LENGTH (aa));
	make_triplet_val_inv (&ARRAY_NOTATION_STRIDE (aa));
      }
  lhs_an_loop_info.safe_grow_cleared (lhs_rank);
  
  if (rhs_rank)
    rhs_an_loop_info.safe_grow_cleared (rhs_rank);

  cond_expr.safe_grow_cleared (MAX (lhs_rank, rhs_rank));
  cilkplus_extract_an_triplets (lhs_list, lhs_list_size, lhs_rank,
				&lhs_an_info);
  if (rhs_list)
    cilkplus_extract_an_triplets (rhs_list, rhs_list_size, rhs_rank,
				  &rhs_an_info);
  if (length_mismatch_in_expr_p (EXPR_LOCATION (lhs), lhs_an_info)
      || (rhs_list && length_mismatch_in_expr_p (EXPR_LOCATION (rhs),
						 rhs_an_info)))
    {
      pop_stmt_list (an_init);
      goto error;
    }
  rhs_len = ((rhs_list_size > 0 && rhs_rank > 0) ?
    rhs_an_info[0][0].length : NULL_TREE);
  lhs_len = ((lhs_list_size > 0 && lhs_rank > 0) ?
    lhs_an_info[0][0].length : NULL_TREE);
  if (lhs_list_size > 0 && rhs_list_size > 0 && lhs_rank > 0 && rhs_rank > 0
      && TREE_CODE (lhs_len) == INTEGER_CST && rhs_len
      && TREE_CODE (rhs_len) == INTEGER_CST 
      && !tree_int_cst_equal (rhs_len, lhs_len))
    { 
      error_at (location, "length mismatch between LHS and RHS"); 
      pop_stmt_list (an_init); 
      goto error;
    }
   for (ii = 0; ii < lhs_rank; ii++) 
     {
       tree typ = ptrdiff_type_node; 
       lhs_an_loop_info[ii].var = create_temporary_var (typ);
       add_decl_expr (lhs_an_loop_info[ii].var);
       lhs_an_loop_info[ii].ind_init = build_x_modify_expr 
	 (location, lhs_an_loop_info[ii].var, INIT_EXPR, build_zero_cst (typ), 
	  complain);
     }
   
   if (rhs_list_size > 0)
     {
       rhs_array_operand = fix_sec_implicit_args (location, rhs_list,
						  lhs_an_loop_info, lhs_rank,
						  lhs); 
       if (!rhs_array_operand)
	 goto error;
     }
  replace_array_notations (&rhs, true, rhs_list, rhs_array_operand);
  rhs_list_size = 0;
  rhs_list = NULL;
  extract_array_notation_exprs (rhs, true, &rhs_list);
  rhs_list_size = vec_safe_length (rhs_list);    

  for (ii = 0; ii < rhs_rank; ii++)
    {
      tree typ = ptrdiff_type_node;
      rhs_an_loop_info[ii].var = create_temporary_var (typ);
      add_decl_expr (rhs_an_loop_info[ii].var);
      rhs_an_loop_info[ii].ind_init = build_x_modify_expr
	(location, rhs_an_loop_info[ii].var, INIT_EXPR, build_zero_cst (typ), 
	 complain);
    }

  if (lhs_rank)
    {
      lhs_array_operand =
	create_array_refs (location, lhs_an_info, lhs_an_loop_info,
			    lhs_list_size, lhs_rank);
      replace_array_notations (&lhs, true, lhs_list, lhs_array_operand);
    }
  
  if (rhs_array_operand)
    vec_safe_truncate (rhs_array_operand, 0);
  if (rhs_rank)
    {
      rhs_array_operand = create_array_refs (location, rhs_an_info,
					      rhs_an_loop_info, rhs_list_size,
					      rhs_rank);
      /* Replace all the array refs created by the above function because this
	 variable is blown away by the fix_sec_implicit_args function below.  */
      replace_array_notations (&rhs, true, rhs_list, rhs_array_operand);
      vec_safe_truncate (rhs_array_operand , 0);
      rhs_array_operand = fix_sec_implicit_args (location, rhs_list,
						 rhs_an_loop_info, rhs_rank,
						 rhs);
      if (!rhs_array_operand)
	goto error;
      replace_array_notations (&rhs, true, rhs_list, rhs_array_operand);
    }

  array_expr_rhs = rhs;
  array_expr_lhs = lhs;
  
  array_expr = build_x_modify_expr (location, array_expr_lhs, modifycode,
				    array_expr_rhs, complain);
  create_cmp_incr (location, &lhs_an_loop_info, lhs_rank, lhs_an_info,
		   complain);
  if (rhs_rank) 
    create_cmp_incr (location, &rhs_an_loop_info, rhs_rank, rhs_an_info, 
		     complain);
  for (ii = 0; ii < MAX (rhs_rank, lhs_rank); ii++)
    if (ii < lhs_rank && ii < rhs_rank)
      cond_expr[ii] = build_x_binary_op
	(location, TRUTH_ANDIF_EXPR, lhs_an_loop_info[ii].cmp,
	 TREE_CODE (lhs_an_loop_info[ii].cmp), rhs_an_loop_info[ii].cmp,
	 TREE_CODE (rhs_an_loop_info[ii].cmp), NULL, complain);
    else if (ii < lhs_rank && ii >= rhs_rank)
      cond_expr[ii] = lhs_an_loop_info[ii].cmp;
    else
      /* No need to compare ii < rhs_rank && ii >= lhs_rank because in a valid 
	 Array notation expression, rank of RHS cannot be greater than LHS.  */
      gcc_unreachable ();
  
  an_init = pop_stmt_list (an_init);
  append_to_statement_list (an_init, &loop_with_init);
  body = array_expr;
  for (ii = 0; ii < MAX (lhs_rank, rhs_rank); ii++)
    {
      tree incr_list = alloc_stmt_list ();
      tree init_list = alloc_stmt_list ();
      tree new_loop = push_stmt_list ();

      if (lhs_rank)
	{
	  append_to_statement_list (lhs_an_loop_info[ii].ind_init, &init_list);
	  append_to_statement_list (lhs_an_loop_info[ii].incr, &incr_list);
	}
      if (rhs_rank)
	{
	  append_to_statement_list (rhs_an_loop_info[ii].ind_init, &init_list);
	  append_to_statement_list (rhs_an_loop_info[ii].incr, &incr_list);
	}
      create_an_loop (init_list, cond_expr[ii], incr_list, body);
      body = pop_stmt_list (new_loop);
    }
  append_to_statement_list (body, &loop_with_init);

  release_vec_vec (lhs_an_info);
  release_vec_vec (rhs_an_info);

  return loop_with_init;

error:
  release_vec_vec (lhs_an_info);
  release_vec_vec (rhs_an_info);

  return error_mark_node;
}
Exemplo n.º 23
0
static tree
cp_expand_cond_array_notations (tree orig_stmt)
{
  vec<tree, va_gc> *array_list = NULL, *array_operand = NULL;
  size_t list_size = 0;
  size_t rank = 0, ii = 0;
  tree an_init, body, stmt = NULL_TREE;
  tree builtin_loop, new_var = NULL_TREE;
  tree loop_with_init = alloc_stmt_list ();
  location_t location = UNKNOWN_LOCATION;
  vec<vec<an_parts> > an_info = vNULL;
  auto_vec<an_loop_parts> an_loop_info;

  if (TREE_CODE (orig_stmt) == COND_EXPR)
    {
      size_t cond_rank = 0, yes_rank = 0, no_rank = 0;
      tree yes_expr = COND_EXPR_THEN (orig_stmt);
      tree no_expr = COND_EXPR_ELSE (orig_stmt);
      tree cond = COND_EXPR_COND (orig_stmt);
      if (!find_rank (EXPR_LOCATION (cond), cond, cond, true, &cond_rank)
	  || !find_rank (EXPR_LOCATION (yes_expr), yes_expr, yes_expr, true,
			 &yes_rank)
	  || find_rank (EXPR_LOCATION (no_expr), no_expr, no_expr, true,
			&no_rank))
	return error_mark_node;
      /* If the condition has a zero rank, then handle array notations in body
	 separately.  */
      if (cond_rank == 0)
	return orig_stmt;
      if (cond_rank != yes_rank && yes_rank != 0)
	{
	  error_at (EXPR_LOCATION (yes_expr), "rank mismatch with controlling"
		    " expression of parent if-statement");
	  return error_mark_node;
	}
      else if (cond_rank != no_rank && no_rank != 0)
	{
	  error_at (EXPR_LOCATION (no_expr), "rank mismatch with controlling "
		    "expression of parent if-statement");
	  return error_mark_node;
	}
    }
  else if (TREE_CODE (orig_stmt) == IF_STMT)
    {
      size_t cond_rank = 0, yes_rank = 0, no_rank = 0;
      tree yes_expr = THEN_CLAUSE (orig_stmt);
      tree no_expr = ELSE_CLAUSE (orig_stmt);
      tree cond = IF_COND (orig_stmt);
      if (!find_rank (EXPR_LOCATION (cond), cond, cond, true, &cond_rank)
	  || (yes_expr
	      && !find_rank (EXPR_LOCATION (yes_expr), yes_expr, yes_expr, true,
			     &yes_rank))
	  || (no_expr
	      && !find_rank (EXPR_LOCATION (no_expr), no_expr, no_expr, true,
			     &no_rank)))
	return error_mark_node;

      /* Same reasoning as for COND_EXPR.  */
      if (cond_rank == 0)
	return orig_stmt;
      else if (cond_rank != yes_rank && yes_rank != 0)
	{
	  error_at (EXPR_LOCATION (yes_expr), "rank mismatch with controlling"
		    " expression of parent if-statement");
	  return error_mark_node;
	}
      else if (cond_rank != no_rank && no_rank != 0)
	{
	  error_at (EXPR_LOCATION (no_expr), "rank mismatch with controlling "
		    "expression of parent if-statement");
	  return error_mark_node;
	}
    }
  else if (truth_value_p (TREE_CODE (orig_stmt)))
    {
      size_t left_rank = 0, right_rank = 0;
      tree left_expr = TREE_OPERAND (orig_stmt, 0);
      tree right_expr = TREE_OPERAND (orig_stmt, 1);
      if (!find_rank (EXPR_LOCATION (left_expr), left_expr, left_expr, true,
		      &left_rank)
	  || !find_rank (EXPR_LOCATION (right_expr), right_expr, right_expr,
			 true, &right_rank))
	return error_mark_node;
      if (right_rank == 0 && left_rank == 0)
	return orig_stmt;
    }

  if (!find_rank (EXPR_LOCATION (orig_stmt), orig_stmt, orig_stmt, true,
		  &rank))
    return error_mark_node;
  if (rank == 0)
    return orig_stmt;

  extract_array_notation_exprs (orig_stmt, false, &array_list);
  stmt = alloc_stmt_list ();
  for (ii = 0; ii < vec_safe_length (array_list); ii++)
    {
      tree array_node = (*array_list)[ii];
      if (TREE_CODE (array_node) == CALL_EXPR
	  || TREE_CODE (array_node) == AGGR_INIT_EXPR)
	{
	  builtin_loop = expand_sec_reduce_builtin (array_node, &new_var);
	  if (builtin_loop == error_mark_node)
	    finish_expr_stmt (error_mark_node);
	  else if (new_var)
	    {
	      vec<tree, va_gc> *sub_list = NULL, *new_var_list = NULL;
	      vec_safe_push (sub_list, array_node);
	      vec_safe_push (new_var_list, new_var);
	      replace_array_notations (&orig_stmt, false, sub_list,
				       new_var_list);
	      append_to_statement_list (builtin_loop, &stmt);
	    }
	}
    }
  append_to_statement_list (orig_stmt, &stmt);
  rank = 0;
  array_list = NULL;
  if (!find_rank (EXPR_LOCATION (stmt), stmt, stmt, true, &rank))
    return error_mark_node;
  if (rank == 0)
    return stmt;
  
  extract_array_notation_exprs (stmt, true, &array_list);
  list_size = vec_safe_length (array_list);
  if (list_size == 0)
    return stmt;

  location = EXPR_LOCATION (orig_stmt);
  list_size = vec_safe_length (array_list);
  an_loop_info.safe_grow_cleared (rank);
  
  an_init = push_stmt_list ();

  /* Assign the array notation components to variable so that they can
     satisfy the exec-once rule.  */
  for (ii = 0; ii < list_size; ii++)
    {
      tree anode = (*array_list)[ii];
      make_triplet_val_inv (&ARRAY_NOTATION_START (anode));
      make_triplet_val_inv (&ARRAY_NOTATION_LENGTH (anode));
      make_triplet_val_inv (&ARRAY_NOTATION_STRIDE (anode));
    }
  cilkplus_extract_an_triplets (array_list, list_size, rank, &an_info);

  for (ii = 0; ii < rank; ii++) 
    {
      tree typ = ptrdiff_type_node;
      an_loop_info[ii].var = create_temporary_var (typ);
      add_decl_expr (an_loop_info[ii].var);
      an_loop_info[ii].ind_init =
	build_x_modify_expr (location, an_loop_info[ii].var, INIT_EXPR,
			     build_zero_cst (typ), tf_warning_or_error);
    }
  array_operand = create_array_refs (location, an_info, an_loop_info,
				     list_size, rank);
  replace_array_notations (&stmt, true, array_list, array_operand);
  create_cmp_incr (location, &an_loop_info, rank, an_info, tf_warning_or_error);
  
  an_init = pop_stmt_list (an_init);
  append_to_statement_list (an_init, &loop_with_init);
  body = stmt;

  for (ii = 0; ii < rank; ii++)
    {
      tree new_loop = push_stmt_list ();
      create_an_loop (an_loop_info[ii].ind_init, an_loop_info[ii].cmp,
		      an_loop_info[ii].incr, body);
      body = pop_stmt_list (new_loop);
    }
  append_to_statement_list (body, &loop_with_init);

  release_vec_vec (an_info);
  
  return loop_with_init;
}
Exemplo n.º 24
0
void
release_ssa_name (tree var)
{
  if (!var)
    return;

  /* Never release the default definition for a symbol.  It's a
     special SSA name that should always exist once it's created.  */
  if (SSA_NAME_IS_DEFAULT_DEF (var))
    return;

  /* If VAR has been registered for SSA updating, don't remove it.
     After update_ssa has run, the name will be released.  */
  if (name_registered_for_update_p (var))
    {
      release_ssa_name_after_update_ssa (var);
      return;
    }

  /* release_ssa_name can be called multiple times on a single SSA_NAME.
     However, it should only end up on our free list one time.   We
     keep a status bit in the SSA_NAME node itself to indicate it has
     been put on the free list.

     Note that once on the freelist you can not reference the SSA_NAME's
     defining statement.  */
  if (! SSA_NAME_IN_FREE_LIST (var))
    {
      tree saved_ssa_name_var = SSA_NAME_VAR (var);
      int saved_ssa_name_version = SSA_NAME_VERSION (var);
      use_operand_p imm = &(SSA_NAME_IMM_USE_NODE (var));

      if (MAY_HAVE_DEBUG_STMTS)
	insert_debug_temp_for_var_def (NULL, var);

#ifdef ENABLE_CHECKING
      verify_imm_links (stderr, var);
#endif
      while (imm->next != imm)
	delink_imm_use (imm->next);

      (*SSANAMES (cfun))[SSA_NAME_VERSION (var)] = NULL_TREE;
      memset (var, 0, tree_size (var));

      imm->prev = imm;
      imm->next = imm;
      imm->loc.ssa_name = var;

      /* First put back the right tree node so that the tree checking
	 macros do not complain.  */
      TREE_SET_CODE (var, SSA_NAME);

      /* Restore the version number.  */
      SSA_NAME_VERSION (var) = saved_ssa_name_version;

      /* Hopefully this can go away once we have the new incremental
         SSA updating code installed.  */
      SET_SSA_NAME_VAR_OR_IDENTIFIER (var, saved_ssa_name_var);

      /* Note this SSA_NAME is now in the first list.  */
      SSA_NAME_IN_FREE_LIST (var) = 1;

      /* And finally put it on the free list.  */
      vec_safe_push (FREE_SSANAMES (cfun), var);
    }
}
Exemplo n.º 25
0
static void
add_type_duplicate (odr_type val, tree type)
{
  if (!val->types_set)
    val->types_set = pointer_set_create ();

  /* See if this duplicate is new.  */
  if (!pointer_set_insert (val->types_set, type))
    {
      bool merge = true;
      bool base_mismatch = false;
      gcc_assert (in_lto_p);
      vec_safe_push (val->types, type);
      unsigned int i,j;

      /* First we compare memory layout.  */
      if (!types_compatible_p (val->type, type))
	{
	  merge = false;
	  if (BINFO_VTABLE (TYPE_BINFO (val->type))
	      && warning_at (DECL_SOURCE_LOCATION (TYPE_NAME (type)), 0,
			     "type %qD violates one definition rule  ",
			     type))
	    inform (DECL_SOURCE_LOCATION (TYPE_NAME (val->type)),
		    "a type with the same name but different layout is "
		    "defined in another translation unit");
	  if (cgraph_dump_file)
	    {
	      fprintf (cgraph_dump_file, "ODR violation or merging or ODR type bug?\n");
	    
	      print_node (cgraph_dump_file, "", val->type, 0);
	      putc ('\n',cgraph_dump_file);
	      print_node (cgraph_dump_file, "", type, 0);
	      putc ('\n',cgraph_dump_file);
	    }
	}

      /* Next sanity check that bases are the same.  If not, we will end
	 up producing wrong answers.  */
      for (j = 0, i = 0; i < BINFO_N_BASE_BINFOS (TYPE_BINFO (type)); i++)
	if (polymorphic_type_binfo_p (BINFO_BASE_BINFO (TYPE_BINFO (type), i)))
	  {
	    odr_type base = get_odr_type
			       (BINFO_TYPE
				  (BINFO_BASE_BINFO (TYPE_BINFO (type),
						     i)),
				true);
	    if (val->bases.length () <= j || val->bases[j] != base)
	      base_mismatch = true;
	    j++;
	  }
      if (base_mismatch)
	{
	  merge = false;

	  if (warning_at (DECL_SOURCE_LOCATION (TYPE_NAME (type)), 0,
			  "type %qD violates one definition rule  ",
			  type))
	    inform (DECL_SOURCE_LOCATION (TYPE_NAME (val->type)),
		    "a type with the same name but different bases is "
		    "defined in another translation unit");
	  if (cgraph_dump_file)
	    {
	      fprintf (cgraph_dump_file, "ODR bse violation or merging bug?\n");
	    
	      print_node (cgraph_dump_file, "", val->type, 0);
	      putc ('\n',cgraph_dump_file);
	      print_node (cgraph_dump_file, "", type, 0);
	      putc ('\n',cgraph_dump_file);
	    }
	}

      /* Regularize things a little.  During LTO same types may come with
	 different BINFOs.  Either because their virtual table was
	 not merged by tree merging and only later at decl merging or
	 because one type comes with external vtable, while other
	 with internal.  We want to merge equivalent binfos to conserve
	 memory and streaming overhead.

	 The external vtables are more harmful: they contain references
	 to external declarations of methods that may be defined in the
	 merged LTO unit.  For this reason we absolutely need to remove
	 them and replace by internal variants. Not doing so will lead
         to incomplete answers from possible_polymorphic_call_targets.  */
      if (!flag_ltrans && merge)
	{
	  tree master_binfo = TYPE_BINFO (val->type);
	  tree v1 = BINFO_VTABLE (master_binfo);
	  tree v2 = BINFO_VTABLE (TYPE_BINFO (type));

	  if (TREE_CODE (v1) == POINTER_PLUS_EXPR)
	    {
	      gcc_assert (TREE_CODE (v2) == POINTER_PLUS_EXPR
			  && operand_equal_p (TREE_OPERAND (v1, 1),
					      TREE_OPERAND (v2, 1), 0));
	      v1 = TREE_OPERAND (TREE_OPERAND (v1, 0), 0);
	      v2 = TREE_OPERAND (TREE_OPERAND (v2, 0), 0);
	    }
	  gcc_assert (DECL_ASSEMBLER_NAME (v1)
		      == DECL_ASSEMBLER_NAME (v2));

	  if (DECL_EXTERNAL (v1) && !DECL_EXTERNAL (v2))
	    {
	      unsigned int i;

	      TYPE_BINFO (val->type) = TYPE_BINFO (type);
	      for (i = 0; i < val->types->length (); i++)
		{
		  if (TYPE_BINFO ((*val->types)[i])
		      == master_binfo)
		    TYPE_BINFO ((*val->types)[i]) = TYPE_BINFO (type);
		}
	    }
	  else
	    TYPE_BINFO (type) = master_binfo;
	}
    }
}