Ejemplo n.º 1
0
static inline void
unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
{
  /* Note that the code for EXPR has already been unpacked to create EXPR in
     streamer_alloc_tree.  */
  if (!TYPE_P (expr))
    {
      TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
      TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
      TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);

      /* TREE_PUBLIC is used on types to indicate that the type
	 has a TYPE_CACHED_VALUES vector.  This is not streamed out,
	 so we skip it here.  */
      TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
    }
  else
    bp_unpack_value (bp, 4);
  TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
  TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
  if (DECL_P (expr))
    DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
  else if (TYPE_P (expr))
    TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
  else
    bp_unpack_value (bp, 1);
  TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
  if (TYPE_P (expr))
    TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
  else
    TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
  TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
  TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
  if (TREE_CODE (expr) != TREE_BINFO)
    TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
  else
    bp_unpack_value (bp, 1);
  TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
  TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
  if (TYPE_P (expr))
    {
      if (AGGREGATE_TYPE_P (expr))
	TYPE_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
      else
	TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
      TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8);
    }
  else if (TREE_CODE (expr) == BIT_FIELD_REF || TREE_CODE (expr) == MEM_REF)
    {
      REF_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
      bp_unpack_value (bp, 8);
    }
  else if (TREE_CODE (expr) == SSA_NAME)
    {
      SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
      bp_unpack_value (bp, 8);
    }
  else
    bp_unpack_value (bp, 9);
}
static void
move_hint_to_base (tree type, struct mem_address *parts, tree base_hint,
		   aff_tree *addr)
{
  unsigned i;
  tree val = NULL_TREE;
  int qual;

  for (i = 0; i < addr->n; i++)
    {
      if (!double_int_one_p (addr->elts[i].coef))
	continue;

      val = addr->elts[i].val;
      if (operand_equal_p (val, base_hint, 0))
	break;
    }

  if (i == addr->n)
    return;

  /* Cast value to appropriate pointer type.  We cannot use a pointer
     to TYPE directly, as the back-end will assume registers of pointer
     type are aligned, and just the base itself may not actually be.
     We use void pointer to the type's address space instead.  */
  qual = ENCODE_QUAL_ADDR_SPACE (TYPE_ADDR_SPACE (type));
  type = build_qualified_type (void_type_node, qual);
  parts->base = fold_convert (build_pointer_type (type), val);
  aff_combination_remove_elt (addr, i);
}
Ejemplo n.º 3
0
static tree
create_mem_ref_raw (tree type, tree alias_ptr_type, struct mem_address *addr)
{
  if (!valid_mem_ref_p (TYPE_MODE (type), TYPE_ADDR_SPACE (type), addr))
    return NULL_TREE;

  if (addr->step && integer_onep (addr->step))
    addr->step = NULL_TREE;

  if (addr->offset && integer_zerop (addr->offset))
    addr->offset = NULL_TREE;

  /* If possible use a plain MEM_REF instead of a TARGET_MEM_REF.  */
  if (alias_ptr_type
      && !addr->index
      && !addr->step
      && (!addr->base || POINTER_TYPE_P (TREE_TYPE (addr->base))))
    {
      tree base, offset;
      gcc_assert (!addr->symbol ^ !addr->base);
      if (addr->symbol)
	base = build_fold_addr_expr (addr->symbol);
      else
	base = addr->base;
      if (addr->offset)
	offset = fold_convert (alias_ptr_type, addr->offset);
      else
	offset = build_int_cst (alias_ptr_type, 0);
      return fold_build2 (MEM_REF, type, base, offset);
    }

  return build6 (TARGET_MEM_REF, type,
		 addr->symbol, addr->base, addr->index,
		 addr->step, addr->offset, NULL);
}
Ejemplo n.º 4
0
static void
pack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
{
  bp_pack_value (bp, TREE_CODE (expr), 16);
  if (!TYPE_P (expr))
    {
      bp_pack_value (bp, TREE_SIDE_EFFECTS (expr), 1);
      bp_pack_value (bp, TREE_CONSTANT (expr), 1);
      bp_pack_value (bp, TREE_READONLY (expr), 1);

      /* TREE_PUBLIC is used on types to indicate that the type
	 has a TYPE_CACHED_VALUES vector.  This is not streamed out,
	 so we skip it here.  */
      bp_pack_value (bp, TREE_PUBLIC (expr), 1);
    }
  else
    bp_pack_value (bp, 0, 4);
  bp_pack_value (bp, TREE_ADDRESSABLE (expr), 1);
  bp_pack_value (bp, TREE_THIS_VOLATILE (expr), 1);
  if (DECL_P (expr))
    bp_pack_value (bp, DECL_UNSIGNED (expr), 1);
  else if (TYPE_P (expr))
    bp_pack_value (bp, TYPE_UNSIGNED (expr), 1);
  else
    bp_pack_value (bp, 0, 1);
  /* We write debug info two times, do not confuse the second one.
     The only relevant TREE_ASM_WRITTEN use is on SSA names.  */
  bp_pack_value (bp, (TREE_CODE (expr) != SSA_NAME
		      ? 0 : TREE_ASM_WRITTEN (expr)), 1);
  if (TYPE_P (expr))
    bp_pack_value (bp, TYPE_ARTIFICIAL (expr), 1);
  else
    bp_pack_value (bp, TREE_NO_WARNING (expr), 1);
  bp_pack_value (bp, TREE_NOTHROW (expr), 1);
  bp_pack_value (bp, TREE_STATIC (expr), 1);
  if (TREE_CODE (expr) != TREE_BINFO)
    bp_pack_value (bp, TREE_PRIVATE (expr), 1);
  bp_pack_value (bp, TREE_PROTECTED (expr), 1);
  bp_pack_value (bp, TREE_DEPRECATED (expr), 1);
  if (TYPE_P (expr))
    {
      bp_pack_value (bp, TYPE_SATURATING (expr), 1);
      bp_pack_value (bp, TYPE_ADDR_SPACE (expr), 8);
    }
  else if (TREE_CODE (expr) == SSA_NAME)
    bp_pack_value (bp, SSA_NAME_IS_DEFAULT_DEF (expr), 1);
  else
    bp_pack_value (bp, 0, 1);
}
static tree
create_mem_ref_raw (tree type, tree alias_ptr_type, struct mem_address *addr,
		    bool verify)
{
  tree base, index2;

  if (verify
      && !valid_mem_ref_p (TYPE_MODE (type), TYPE_ADDR_SPACE (type), addr))
    return NULL_TREE;

  if (addr->step && integer_onep (addr->step))
    addr->step = NULL_TREE;

  if (addr->offset)
    addr->offset = fold_convert (alias_ptr_type, addr->offset);
  else
    addr->offset = build_int_cst (alias_ptr_type, 0);

  if (addr->symbol)
    {
      base = addr->symbol;
      index2 = addr->base;
    }
  else if (addr->base
	   && POINTER_TYPE_P (TREE_TYPE (addr->base)))
    {
      base = addr->base;
      index2 = NULL_TREE;
    }
  else
    {
      base = build_int_cst (ptr_type_node, 0);
      index2 = addr->base;
    }

  /* If possible use a plain MEM_REF instead of a TARGET_MEM_REF.
     ???  As IVOPTs does not follow restrictions to where the base
     pointer may point to create a MEM_REF only if we know that
     base is valid.  */
  if ((TREE_CODE (base) == ADDR_EXPR || TREE_CODE (base) == INTEGER_CST)
      && (!index2 || integer_zerop (index2))
      && (!addr->index || integer_zerop (addr->index)))
    return fold_build2 (MEM_REF, type, base, addr->offset);

  return build5 (TARGET_MEM_REF, type,
		 base, addr->offset, addr->index, addr->step, index2);
}
Ejemplo n.º 6
0
static tree
create_mem_ref_raw (tree type, tree alias_ptr_type, struct mem_address *addr,
		    bool verify)
{
  tree base, index2;

  if (verify
      && !valid_mem_ref_p (TYPE_MODE (type), TYPE_ADDR_SPACE (type), addr))
    return NULL_TREE;

  if (addr->step && integer_onep (addr->step))
    addr->step = NULL_TREE;

  if (addr->offset)
    addr->offset = fold_convert (alias_ptr_type, addr->offset);
  else
    addr->offset = build_int_cst (alias_ptr_type, 0);

  if (addr->symbol)
    {
      base = addr->symbol;
      index2 = addr->base;
    }
  else if (addr->base
	   && POINTER_TYPE_P (TREE_TYPE (addr->base)))
    {
      base = addr->base;
      index2 = NULL_TREE;
    }
  else
    {
      base = build_int_cst (ptr_type_node, 0);
      index2 = addr->base;
    }

  /* If possible use a plain MEM_REF instead of a TARGET_MEM_REF.  */
  if (alias_ptr_type
      && (!index2 || integer_zerop (index2))
      && (!addr->index || integer_zerop (addr->index)))
    return fold_build2 (MEM_REF, type, base, addr->offset);

  return build5 (TARGET_MEM_REF, type,
		 base, addr->offset, addr->index, addr->step, index2);
}
Ejemplo n.º 7
0
bool
useless_type_conversion_p (tree outer_type, tree inner_type)
{
  /* Do the following before stripping toplevel qualifiers.  */
  if (POINTER_TYPE_P (inner_type)
      && POINTER_TYPE_P (outer_type))
    {
      /* Do not lose casts between pointers to different address spaces.  */
      if (TYPE_ADDR_SPACE (TREE_TYPE (outer_type))
	  != TYPE_ADDR_SPACE (TREE_TYPE (inner_type)))
	return false;
      /* Do not lose casts to function pointer types.  */
      if ((TREE_CODE (TREE_TYPE (outer_type)) == FUNCTION_TYPE
	   || TREE_CODE (TREE_TYPE (outer_type)) == METHOD_TYPE)
	  && !(TREE_CODE (TREE_TYPE (inner_type)) == FUNCTION_TYPE
	       || TREE_CODE (TREE_TYPE (inner_type)) == METHOD_TYPE))
	return false;
    }

  /* From now on qualifiers on value types do not matter.  */
  inner_type = TYPE_MAIN_VARIANT (inner_type);
  outer_type = TYPE_MAIN_VARIANT (outer_type);

  if (inner_type == outer_type)
    return true;

  /* Changes in machine mode are never useless conversions because the RTL
     middle-end expects explicit conversions between modes.  */
  if (TYPE_MODE (inner_type) != TYPE_MODE (outer_type))
    return false;

  /* If both the inner and outer types are integral types, then the
     conversion is not necessary if they have the same mode and
     signedness and precision, and both or neither are boolean.  */
  if (INTEGRAL_TYPE_P (inner_type)
      && INTEGRAL_TYPE_P (outer_type))
    {
      /* Preserve changes in signedness or precision.  */
      if (TYPE_UNSIGNED (inner_type) != TYPE_UNSIGNED (outer_type)
	  || TYPE_PRECISION (inner_type) != TYPE_PRECISION (outer_type))
	return false;

      /* Preserve conversions to/from BOOLEAN_TYPE if types are not
	 of precision one.  */
      if (((TREE_CODE (inner_type) == BOOLEAN_TYPE)
	   != (TREE_CODE (outer_type) == BOOLEAN_TYPE))
	  && TYPE_PRECISION (outer_type) != 1)
	return false;

      /* We don't need to preserve changes in the types minimum or
	 maximum value in general as these do not generate code
	 unless the types precisions are different.  */
      return true;
    }

  /* Scalar floating point types with the same mode are compatible.  */
  else if (SCALAR_FLOAT_TYPE_P (inner_type)
	   && SCALAR_FLOAT_TYPE_P (outer_type))
    return true;

  /* Fixed point types with the same mode are compatible.  */
  else if (FIXED_POINT_TYPE_P (inner_type)
	   && FIXED_POINT_TYPE_P (outer_type))
    return true;

  /* We need to take special care recursing to pointed-to types.  */
  else if (POINTER_TYPE_P (inner_type)
	   && POINTER_TYPE_P (outer_type))
    {
      /* We do not care for const qualification of the pointed-to types
	 as const qualification has no semantic value to the middle-end.  */

      /* Otherwise pointers/references are equivalent.  */
      return true;
    }

  /* Recurse for complex types.  */
  else if (TREE_CODE (inner_type) == COMPLEX_TYPE
	   && TREE_CODE (outer_type) == COMPLEX_TYPE)
    return useless_type_conversion_p (TREE_TYPE (outer_type),
				      TREE_TYPE (inner_type));

  /* Recurse for vector types with the same number of subparts.  */
  else if (TREE_CODE (inner_type) == VECTOR_TYPE
	   && TREE_CODE (outer_type) == VECTOR_TYPE
	   && TYPE_PRECISION (inner_type) == TYPE_PRECISION (outer_type))
    return useless_type_conversion_p (TREE_TYPE (outer_type),
				      TREE_TYPE (inner_type));

  else if (TREE_CODE (inner_type) == ARRAY_TYPE
	   && TREE_CODE (outer_type) == ARRAY_TYPE)
    {
      /* Preserve various attributes.  */
      if (TYPE_REVERSE_STORAGE_ORDER (inner_type)
	  != TYPE_REVERSE_STORAGE_ORDER (outer_type))
	return false;
      if (TYPE_STRING_FLAG (inner_type) != TYPE_STRING_FLAG (outer_type))
	return false;

      /* Conversions from array types with unknown extent to
	 array types with known extent are not useless.  */
      if (!TYPE_DOMAIN (inner_type) && TYPE_DOMAIN (outer_type))
	return false;

      /* Nor are conversions from array types with non-constant size to
         array types with constant size or to different size.  */
      if (TYPE_SIZE (outer_type)
	  && TREE_CODE (TYPE_SIZE (outer_type)) == INTEGER_CST
	  && (!TYPE_SIZE (inner_type)
	      || TREE_CODE (TYPE_SIZE (inner_type)) != INTEGER_CST
	      || !tree_int_cst_equal (TYPE_SIZE (outer_type),
				      TYPE_SIZE (inner_type))))
	return false;

      /* Check conversions between arrays with partially known extents.
	 If the array min/max values are constant they have to match.
	 Otherwise allow conversions to unknown and variable extents.
	 In particular this declares conversions that may change the
	 mode to BLKmode as useless.  */
      if (TYPE_DOMAIN (inner_type)
	  && TYPE_DOMAIN (outer_type)
	  && TYPE_DOMAIN (inner_type) != TYPE_DOMAIN (outer_type))
	{
	  tree inner_min = TYPE_MIN_VALUE (TYPE_DOMAIN (inner_type));
	  tree outer_min = TYPE_MIN_VALUE (TYPE_DOMAIN (outer_type));
	  tree inner_max = TYPE_MAX_VALUE (TYPE_DOMAIN (inner_type));
	  tree outer_max = TYPE_MAX_VALUE (TYPE_DOMAIN (outer_type));

	  /* After gimplification a variable min/max value carries no
	     additional information compared to a NULL value.  All that
	     matters has been lowered to be part of the IL.  */
	  if (inner_min && TREE_CODE (inner_min) != INTEGER_CST)
	    inner_min = NULL_TREE;
	  if (outer_min && TREE_CODE (outer_min) != INTEGER_CST)
	    outer_min = NULL_TREE;
	  if (inner_max && TREE_CODE (inner_max) != INTEGER_CST)
	    inner_max = NULL_TREE;
	  if (outer_max && TREE_CODE (outer_max) != INTEGER_CST)
	    outer_max = NULL_TREE;

	  /* Conversions NULL / variable <- cst are useless, but not
	     the other way around.  */
	  if (outer_min
	      && (!inner_min
		  || !tree_int_cst_equal (inner_min, outer_min)))
	    return false;
	  if (outer_max
	      && (!inner_max
		  || !tree_int_cst_equal (inner_max, outer_max)))
	    return false;
	}

      /* Recurse on the element check.  */
      return useless_type_conversion_p (TREE_TYPE (outer_type),
					TREE_TYPE (inner_type));
    }

  else if ((TREE_CODE (inner_type) == FUNCTION_TYPE
	    || TREE_CODE (inner_type) == METHOD_TYPE)
	   && TREE_CODE (inner_type) == TREE_CODE (outer_type))
    {
      tree outer_parm, inner_parm;

      /* If the return types are not compatible bail out.  */
      if (!useless_type_conversion_p (TREE_TYPE (outer_type),
				      TREE_TYPE (inner_type)))
	return false;

      /* Method types should belong to a compatible base class.  */
      if (TREE_CODE (inner_type) == METHOD_TYPE
	  && !useless_type_conversion_p (TYPE_METHOD_BASETYPE (outer_type),
					 TYPE_METHOD_BASETYPE (inner_type)))
	return false;

      /* A conversion to an unprototyped argument list is ok.  */
      if (!prototype_p (outer_type))
	return true;

      /* If the unqualified argument types are compatible the conversion
	 is useless.  */
      if (TYPE_ARG_TYPES (outer_type) == TYPE_ARG_TYPES (inner_type))
	return true;

      for (outer_parm = TYPE_ARG_TYPES (outer_type),
	   inner_parm = TYPE_ARG_TYPES (inner_type);
	   outer_parm && inner_parm;
	   outer_parm = TREE_CHAIN (outer_parm),
	   inner_parm = TREE_CHAIN (inner_parm))
	if (!useless_type_conversion_p
	       (TYPE_MAIN_VARIANT (TREE_VALUE (outer_parm)),
		TYPE_MAIN_VARIANT (TREE_VALUE (inner_parm))))
	  return false;

      /* If there is a mismatch in the number of arguments the functions
	 are not compatible.  */
      if (outer_parm || inner_parm)
	return false;

      /* Defer to the target if necessary.  */
      if (TYPE_ATTRIBUTES (inner_type) || TYPE_ATTRIBUTES (outer_type))
	return comp_type_attributes (outer_type, inner_type) != 0;

      return true;
    }

  /* For aggregates we rely on TYPE_CANONICAL exclusively and require
     explicit conversions for types involving to be structurally
     compared types.  */
  else if (AGGREGATE_TYPE_P (inner_type)
	   && TREE_CODE (inner_type) == TREE_CODE (outer_type))
    return TYPE_CANONICAL (inner_type)
	   && TYPE_CANONICAL (inner_type) == TYPE_CANONICAL (outer_type);

  else if (TREE_CODE (inner_type) == OFFSET_TYPE
	   && TREE_CODE (outer_type) == OFFSET_TYPE)
    return useless_type_conversion_p (TREE_TYPE (outer_type),
				      TREE_TYPE (inner_type))
	   && useless_type_conversion_p
	        (TYPE_OFFSET_BASETYPE (outer_type),
		 TYPE_OFFSET_BASETYPE (inner_type));

  return false;
}
static void
most_expensive_mult_to_index (tree type, struct mem_address *parts,
			      aff_tree *addr, bool speed)
{
  addr_space_t as = TYPE_ADDR_SPACE (type);
  enum machine_mode address_mode = targetm.addr_space.address_mode (as);
  HOST_WIDE_INT coef;
  double_int best_mult, amult, amult_neg;
  unsigned best_mult_cost = 0, acost;
  tree mult_elt = NULL_TREE, elt;
  unsigned i, j;
  enum tree_code op_code;

  best_mult = double_int_zero;
  for (i = 0; i < addr->n; i++)
    {
      if (!double_int_fits_in_shwi_p (addr->elts[i].coef))
	continue;

      coef = double_int_to_shwi (addr->elts[i].coef);
      if (coef == 1
	  || !multiplier_allowed_in_address_p (coef, TYPE_MODE (type), as))
	continue;

      acost = multiply_by_cost (coef, address_mode, speed);

      if (acost > best_mult_cost)
	{
	  best_mult_cost = acost;
	  best_mult = addr->elts[i].coef;
	}
    }

  if (!best_mult_cost)
    return;

  /* Collect elements multiplied by best_mult.  */
  for (i = j = 0; i < addr->n; i++)
    {
      amult = addr->elts[i].coef;
      amult_neg = double_int_ext_for_comb (double_int_neg (amult), addr);

      if (double_int_equal_p (amult, best_mult))
	op_code = PLUS_EXPR;
      else if (double_int_equal_p (amult_neg, best_mult))
	op_code = MINUS_EXPR;
      else
	{
	  addr->elts[j] = addr->elts[i];
	  j++;
	  continue;
	}

      elt = fold_convert (sizetype, addr->elts[i].val);
      if (mult_elt)
	mult_elt = fold_build2 (op_code, sizetype, mult_elt, elt);
      else if (op_code == PLUS_EXPR)
	mult_elt = elt;
      else
	mult_elt = fold_build1 (NEGATE_EXPR, sizetype, elt);
    }
  addr->n = j;

  parts->index = mult_elt;
  parts->step = double_int_to_tree (sizetype, best_mult);
}
Ejemplo n.º 9
0
void
print_node_brief (FILE *file, const char *prefix, const_tree node, int indent)
{
    enum tree_code_class tclass;

    if (node == 0)
        return;

    tclass = TREE_CODE_CLASS (TREE_CODE (node));

    /* Always print the slot this node is in, and its code, address and
       name if any.  */
    if (indent > 0)
        fprintf (file, " ");
    fprintf (file, "%s <%s", prefix, get_tree_code_name (TREE_CODE (node)));
    dump_addr (file, " ", node);

    if (tclass == tcc_declaration)
    {
        if (DECL_NAME (node))
            fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
        else if (TREE_CODE (node) == LABEL_DECL
                 && LABEL_DECL_UID (node) != -1)
        {
            if (dump_flags & TDF_NOUID)
                fprintf (file, " L.xxxx");
            else
                fprintf (file, " L.%d", (int) LABEL_DECL_UID (node));
        }
        else
        {
            if (dump_flags & TDF_NOUID)
                fprintf (file, " %c.xxxx",
                         TREE_CODE (node) == CONST_DECL ? 'C' : 'D');
            else
                fprintf (file, " %c.%u",
                         TREE_CODE (node) == CONST_DECL ? 'C' : 'D',
                         DECL_UID (node));
        }
    }
    else if (tclass == tcc_type)
    {
        if (TYPE_NAME (node))
        {
            if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
                fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
            else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
                     && DECL_NAME (TYPE_NAME (node)))
                fprintf (file, " %s",
                         IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
        }
        if (!ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (node)))
            fprintf (file, " address-space-%d", TYPE_ADDR_SPACE (node));
    }
    if (TREE_CODE (node) == IDENTIFIER_NODE)
        fprintf (file, " %s", IDENTIFIER_POINTER (node));

    /* We might as well always print the value of an integer or real.  */
    if (TREE_CODE (node) == INTEGER_CST)
    {
        if (TREE_OVERFLOW (node))
            fprintf (file, " overflow");

        fprintf (file, " ");
        print_dec (node, file, TYPE_SIGN (TREE_TYPE (node)));
    }
    if (TREE_CODE (node) == REAL_CST)
    {
        REAL_VALUE_TYPE d;

        if (TREE_OVERFLOW (node))
            fprintf (file, " overflow");

        d = TREE_REAL_CST (node);
        if (REAL_VALUE_ISINF (d))
            fprintf (file,  REAL_VALUE_NEGATIVE (d) ? " -Inf" : " Inf");
        else if (REAL_VALUE_ISNAN (d))
            fprintf (file, " Nan");
        else
        {
            char string[60];
            real_to_decimal (string, &d, sizeof (string), 0, 1);
            fprintf (file, " %s", string);
        }
    }
    if (TREE_CODE (node) == FIXED_CST)
    {
        FIXED_VALUE_TYPE f;
        char string[60];

        if (TREE_OVERFLOW (node))
            fprintf (file, " overflow");

        f = TREE_FIXED_CST (node);
        fixed_to_decimal (string, &f, sizeof (string));
        fprintf (file, " %s", string);
    }

    fprintf (file, ">");
}
Ejemplo n.º 10
0
void
print_node (FILE *file, const char *prefix, tree node, int indent)
{
    int hash;
    struct bucket *b;
    machine_mode mode;
    enum tree_code_class tclass;
    int len;
    int i;
    expanded_location xloc;
    enum tree_code code;

    if (node == 0)
        return;

    code = TREE_CODE (node);
    tclass = TREE_CODE_CLASS (code);

    /* Don't get too deep in nesting.  If the user wants to see deeper,
       it is easy to use the address of a lowest-level node
       as an argument in another call to debug_tree.  */

    if (indent > 24)
    {
        print_node_brief (file, prefix, node, indent);
        return;
    }

    if (indent > 8 && (tclass == tcc_type || tclass == tcc_declaration))
    {
        print_node_brief (file, prefix, node, indent);
        return;
    }

    /* It is unsafe to look at any other fields of an ERROR_MARK node.  */
    if (code == ERROR_MARK)
    {
        print_node_brief (file, prefix, node, indent);
        return;
    }

    /* Allow this function to be called if the table is not there.  */
    if (table)
    {
        hash = ((uintptr_t) node) % HASH_SIZE;

        /* If node is in the table, just mention its address.  */
        for (b = table[hash]; b; b = b->next)
            if (b->node == node)
            {
                print_node_brief (file, prefix, node, indent);
                return;
            }

        /* Add this node to the table.  */
        b = XNEW (struct bucket);
        b->node = node;
        b->next = table[hash];
        table[hash] = b;
    }

    /* Indent to the specified column, since this is the long form.  */
    indent_to (file, indent);

    /* Print the slot this node is in, and its code, and address.  */
    fprintf (file, "%s <%s", prefix, get_tree_code_name (code));
    dump_addr (file, " ", node);

    /* Print the name, if any.  */
    if (tclass == tcc_declaration)
    {
        if (DECL_NAME (node))
            fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
        else if (code == LABEL_DECL
                 && LABEL_DECL_UID (node) != -1)
        {
            if (dump_flags & TDF_NOUID)
                fprintf (file, " L.xxxx");
            else
                fprintf (file, " L.%d", (int) LABEL_DECL_UID (node));
        }
        else
        {
            if (dump_flags & TDF_NOUID)
                fprintf (file, " %c.xxxx", code == CONST_DECL ? 'C' : 'D');
            else
                fprintf (file, " %c.%u", code == CONST_DECL ? 'C' : 'D',
                         DECL_UID (node));
        }
    }
    else if (tclass == tcc_type)
    {
        if (TYPE_NAME (node))
        {
            if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
                fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
            else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
                     && DECL_NAME (TYPE_NAME (node)))
                fprintf (file, " %s",
                         IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
        }
    }
    if (code == IDENTIFIER_NODE)
        fprintf (file, " %s", IDENTIFIER_POINTER (node));

    if (code == INTEGER_CST)
    {
        if (indent <= 4)
            print_node_brief (file, "type", TREE_TYPE (node), indent + 4);
    }
    else if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
    {
        print_node (file, "type", TREE_TYPE (node), indent + 4);
        if (TREE_TYPE (node))
            indent_to (file, indent + 3);
    }

    if (!TYPE_P (node) && TREE_SIDE_EFFECTS (node))
        fputs (" side-effects", file);

    if (TYPE_P (node) ? TYPE_READONLY (node) : TREE_READONLY (node))
        fputs (" readonly", file);
    if (TYPE_P (node) && TYPE_ATOMIC (node))
        fputs (" atomic", file);
    if (!TYPE_P (node) && TREE_CONSTANT (node))
        fputs (" constant", file);
    else if (TYPE_P (node) && TYPE_SIZES_GIMPLIFIED (node))
        fputs (" sizes-gimplified", file);

    if (TYPE_P (node) && !ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (node)))
        fprintf (file, " address-space-%d", TYPE_ADDR_SPACE (node));

    if (TREE_ADDRESSABLE (node))
        fputs (" addressable", file);
    if (TREE_THIS_VOLATILE (node))
        fputs (" volatile", file);
    if (TREE_ASM_WRITTEN (node))
        fputs (" asm_written", file);
    if (TREE_USED (node))
        fputs (" used", file);
    if (TREE_NOTHROW (node))
        fputs (" nothrow", file);
    if (TREE_PUBLIC (node))
        fputs (" public", file);
    if (TREE_PRIVATE (node))
        fputs (" private", file);
    if (TREE_PROTECTED (node))
        fputs (" protected", file);
    if (TREE_STATIC (node))
        fputs (code == CALL_EXPR ? " must-tail-call" : " static", file);
    if (TREE_DEPRECATED (node))
        fputs (" deprecated", file);
    if (TREE_VISITED (node))
        fputs (" visited", file);

    if (code != TREE_VEC && code != INTEGER_CST && code != SSA_NAME)
    {
        if (TREE_LANG_FLAG_0 (node))
            fputs (" tree_0", file);
        if (TREE_LANG_FLAG_1 (node))
            fputs (" tree_1", file);
        if (TREE_LANG_FLAG_2 (node))
            fputs (" tree_2", file);
        if (TREE_LANG_FLAG_3 (node))
            fputs (" tree_3", file);
        if (TREE_LANG_FLAG_4 (node))
            fputs (" tree_4", file);
        if (TREE_LANG_FLAG_5 (node))
            fputs (" tree_5", file);
        if (TREE_LANG_FLAG_6 (node))
            fputs (" tree_6", file);
    }

    /* DECL_ nodes have additional attributes.  */

    switch (TREE_CODE_CLASS (code))
    {
    case tcc_declaration:
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
        {
            if (DECL_UNSIGNED (node))
                fputs (" unsigned", file);
            if (DECL_IGNORED_P (node))
                fputs (" ignored", file);
            if (DECL_ABSTRACT_P (node))
                fputs (" abstract", file);
            if (DECL_EXTERNAL (node))
                fputs (" external", file);
            if (DECL_NONLOCAL (node))
                fputs (" nonlocal", file);
        }
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
        {
            if (DECL_WEAK (node))
                fputs (" weak", file);
            if (DECL_IN_SYSTEM_HEADER (node))
                fputs (" in_system_header", file);
        }
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL)
                && code != LABEL_DECL
                && code != FUNCTION_DECL
                && DECL_REGISTER (node))
            fputs (" regdecl", file);

        if (code == TYPE_DECL && TYPE_DECL_SUPPRESS_DEBUG (node))
            fputs (" suppress-debug", file);

        if (code == FUNCTION_DECL
                && DECL_FUNCTION_SPECIFIC_TARGET (node))
            fputs (" function-specific-target", file);
        if (code == FUNCTION_DECL
                && DECL_FUNCTION_SPECIFIC_OPTIMIZATION (node))
            fputs (" function-specific-opt", file);
        if (code == FUNCTION_DECL && DECL_DECLARED_INLINE_P (node))
            fputs (" autoinline", file);
        if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
            fputs (" built-in", file);
        if (code == FUNCTION_DECL && DECL_STATIC_CHAIN (node))
            fputs (" static-chain", file);
        if (TREE_CODE (node) == FUNCTION_DECL && decl_is_tm_clone (node))
            fputs (" tm-clone", file);

        if (code == FIELD_DECL && DECL_PACKED (node))
            fputs (" packed", file);
        if (code == FIELD_DECL && DECL_BIT_FIELD (node))
            fputs (" bit-field", file);
        if (code == FIELD_DECL && DECL_NONADDRESSABLE_P (node))
            fputs (" nonaddressable", file);

        if (code == LABEL_DECL && EH_LANDING_PAD_NR (node))
            fprintf (file, " landing-pad:%d", EH_LANDING_PAD_NR (node));

        if (code == VAR_DECL && DECL_IN_TEXT_SECTION (node))
            fputs (" in-text-section", file);
        if (code == VAR_DECL && DECL_IN_CONSTANT_POOL (node))
            fputs (" in-constant-pool", file);
        if (code == VAR_DECL && DECL_COMMON (node))
            fputs (" common", file);
        if (code == VAR_DECL && DECL_THREAD_LOCAL_P (node))
        {
            fputs (" ", file);
            fputs (tls_model_names[DECL_TLS_MODEL (node)], file);
        }

        if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
        {
            if (DECL_VIRTUAL_P (node))
                fputs (" virtual", file);
            if (DECL_PRESERVE_P (node))
                fputs (" preserve", file);
            if (DECL_LANG_FLAG_0 (node))
                fputs (" decl_0", file);
            if (DECL_LANG_FLAG_1 (node))
                fputs (" decl_1", file);
            if (DECL_LANG_FLAG_2 (node))
                fputs (" decl_2", file);
            if (DECL_LANG_FLAG_3 (node))
                fputs (" decl_3", file);
            if (DECL_LANG_FLAG_4 (node))
                fputs (" decl_4", file);
            if (DECL_LANG_FLAG_5 (node))
                fputs (" decl_5", file);
            if (DECL_LANG_FLAG_6 (node))
                fputs (" decl_6", file);
            if (DECL_LANG_FLAG_7 (node))
                fputs (" decl_7", file);

            mode = DECL_MODE (node);
            fprintf (file, " %s", GET_MODE_NAME (mode));
        }

        if ((code == VAR_DECL || code == PARM_DECL || code == RESULT_DECL)
                && DECL_BY_REFERENCE (node))
            fputs (" passed-by-reference", file);

        if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)  && DECL_DEFER_OUTPUT (node))
            fputs (" defer-output", file);


        xloc = expand_location (DECL_SOURCE_LOCATION (node));
        fprintf (file, " file %s line %d col %d", xloc.file, xloc.line,
                 xloc.column);

        if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
        {
            print_node (file, "size", DECL_SIZE (node), indent + 4);
            print_node (file, "unit size", DECL_SIZE_UNIT (node), indent + 4);

            if (code != FUNCTION_DECL || DECL_BUILT_IN (node))
                indent_to (file, indent + 3);

            if (DECL_USER_ALIGN (node))
                fprintf (file, " user");

            fprintf (file, " align %d", DECL_ALIGN (node));
            if (code == FIELD_DECL)
                fprintf (file, " offset_align " HOST_WIDE_INT_PRINT_UNSIGNED,
                         DECL_OFFSET_ALIGN (node));

            if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
            {
                if (DECL_BUILT_IN_CLASS (node) == BUILT_IN_MD)
                    fprintf (file, " built-in BUILT_IN_MD %d", DECL_FUNCTION_CODE (node));
                else
                    fprintf (file, " built-in %s:%s",
                             built_in_class_names[(int) DECL_BUILT_IN_CLASS (node)],
                             built_in_names[(int) DECL_FUNCTION_CODE (node)]);
            }
        }
        if (code == FIELD_DECL)
        {
            print_node (file, "offset", DECL_FIELD_OFFSET (node), indent + 4);
            print_node (file, "bit offset", DECL_FIELD_BIT_OFFSET (node),
                        indent + 4);
            if (DECL_BIT_FIELD_TYPE (node))
                print_node (file, "bit_field_type", DECL_BIT_FIELD_TYPE (node),
                            indent + 4);
        }

        print_node_brief (file, "context", DECL_CONTEXT (node), indent + 4);

        if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
        {
            print_node_brief (file, "attributes",
                              DECL_ATTRIBUTES (node), indent + 4);
            if (code != PARM_DECL)
                print_node_brief (file, "initial", DECL_INITIAL (node),
                                  indent + 4);
        }
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
        {
            print_node_brief (file, "abstract_origin",
                              DECL_ABSTRACT_ORIGIN (node), indent + 4);
        }
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
        {
            print_node (file, "result", DECL_RESULT_FLD (node), indent + 4);
        }

        lang_hooks.print_decl (file, node, indent);

        if (DECL_RTL_SET_P (node))
        {
            indent_to (file, indent + 4);
            print_rtl (file, DECL_RTL (node));
        }

        if (code == PARM_DECL)
        {
            print_node (file, "arg-type", DECL_ARG_TYPE (node), indent + 4);

            if (DECL_INCOMING_RTL (node) != 0)
            {
                indent_to (file, indent + 4);
                fprintf (file, "incoming-rtl ");
                print_rtl (file, DECL_INCOMING_RTL (node));
            }
        }
        else if (code == FUNCTION_DECL
                 && DECL_STRUCT_FUNCTION (node) != 0)
        {
            print_node (file, "arguments", DECL_ARGUMENTS (node), indent + 4);
            indent_to (file, indent + 4);
            dump_addr (file, "struct-function ", DECL_STRUCT_FUNCTION (node));
        }

        if ((code == VAR_DECL || code == PARM_DECL)
                && DECL_HAS_VALUE_EXPR_P (node))
            print_node (file, "value-expr", DECL_VALUE_EXPR (node), indent + 4);

        /* Print the decl chain only if decl is at second level.  */
        if (indent == 4)
            print_node (file, "chain", TREE_CHAIN (node), indent + 4);
        else
            print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
        break;

    case tcc_type:
        if (TYPE_UNSIGNED (node))
            fputs (" unsigned", file);

        if (TYPE_NO_FORCE_BLK (node))
            fputs (" no-force-blk", file);

        if (TYPE_STRING_FLAG (node))
            fputs (" string-flag", file);

        if (TYPE_NEEDS_CONSTRUCTING (node))
            fputs (" needs-constructing", file);

        if ((code == RECORD_TYPE
                || code == UNION_TYPE
                || code == QUAL_UNION_TYPE
                || code == ARRAY_TYPE)
                && TYPE_REVERSE_STORAGE_ORDER (node))
            fputs (" reverse-storage-order", file);

        /* The transparent-union flag is used for different things in
        different nodes.  */
        if ((code == UNION_TYPE || code == RECORD_TYPE)
                && TYPE_TRANSPARENT_AGGR (node))
            fputs (" transparent-aggr", file);
        else if (code == ARRAY_TYPE
                 && TYPE_NONALIASED_COMPONENT (node))
            fputs (" nonaliased-component", file);

        if (TYPE_PACKED (node))
            fputs (" packed", file);

        if (TYPE_RESTRICT (node))
            fputs (" restrict", file);

        if (TYPE_LANG_FLAG_0 (node))
            fputs (" type_0", file);
        if (TYPE_LANG_FLAG_1 (node))
            fputs (" type_1", file);
        if (TYPE_LANG_FLAG_2 (node))
            fputs (" type_2", file);
        if (TYPE_LANG_FLAG_3 (node))
            fputs (" type_3", file);
        if (TYPE_LANG_FLAG_4 (node))
            fputs (" type_4", file);
        if (TYPE_LANG_FLAG_5 (node))
            fputs (" type_5", file);
        if (TYPE_LANG_FLAG_6 (node))
            fputs (" type_6", file);
        if (TYPE_LANG_FLAG_7 (node))
            fputs (" type_7", file);

        mode = TYPE_MODE (node);
        fprintf (file, " %s", GET_MODE_NAME (mode));

        print_node (file, "size", TYPE_SIZE (node), indent + 4);
        print_node (file, "unit size", TYPE_SIZE_UNIT (node), indent + 4);
        indent_to (file, indent + 3);

        if (TYPE_USER_ALIGN (node))
            fprintf (file, " user");

        fprintf (file, " align %d symtab %d alias set " HOST_WIDE_INT_PRINT_DEC,
                 TYPE_ALIGN (node), TYPE_SYMTAB_ADDRESS (node),
                 (HOST_WIDE_INT) TYPE_ALIAS_SET (node));

        if (TYPE_STRUCTURAL_EQUALITY_P (node))
            fprintf (file, " structural equality");
        else
            dump_addr (file, " canonical type ", TYPE_CANONICAL (node));

        print_node (file, "attributes", TYPE_ATTRIBUTES (node), indent + 4);

        if (INTEGRAL_TYPE_P (node) || code == REAL_TYPE
                || code == FIXED_POINT_TYPE)
        {
            fprintf (file, " precision %d", TYPE_PRECISION (node));
            print_node_brief (file, "min", TYPE_MIN_VALUE (node), indent + 4);
            print_node_brief (file, "max", TYPE_MAX_VALUE (node), indent + 4);
        }

        if (code == ENUMERAL_TYPE)
            print_node (file, "values", TYPE_VALUES (node), indent + 4);
        else if (code == ARRAY_TYPE)
            print_node (file, "domain", TYPE_DOMAIN (node), indent + 4);
        else if (code == VECTOR_TYPE)
            fprintf (file, " nunits %d", (int) TYPE_VECTOR_SUBPARTS (node));
        else if (code == RECORD_TYPE
                 || code == UNION_TYPE
                 || code == QUAL_UNION_TYPE)
            print_node (file, "fields", TYPE_FIELDS (node), indent + 4);
        else if (code == FUNCTION_TYPE
                 || code == METHOD_TYPE)
        {
            if (TYPE_METHOD_BASETYPE (node))
                print_node_brief (file, "method basetype",
                                  TYPE_METHOD_BASETYPE (node), indent + 4);
            print_node (file, "arg-types", TYPE_ARG_TYPES (node), indent + 4);
        }
        else if (code == OFFSET_TYPE)
            print_node_brief (file, "basetype", TYPE_OFFSET_BASETYPE (node),
                              indent + 4);

        if (TYPE_CONTEXT (node))
            print_node_brief (file, "context", TYPE_CONTEXT (node), indent + 4);

        lang_hooks.print_type (file, node, indent);

        if (TYPE_POINTER_TO (node) || TREE_CHAIN (node))
            indent_to (file, indent + 3);

        print_node_brief (file, "pointer_to_this", TYPE_POINTER_TO (node),
                          indent + 4);
        print_node_brief (file, "reference_to_this", TYPE_REFERENCE_TO (node),
                          indent + 4);
        print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
        break;

    case tcc_expression:
    case tcc_comparison:
    case tcc_unary:
    case tcc_binary:
    case tcc_reference:
    case tcc_statement:
    case tcc_vl_exp:
        if (code == BIND_EXPR)
        {
            print_node (file, "vars", TREE_OPERAND (node, 0), indent + 4);
            print_node (file, "body", TREE_OPERAND (node, 1), indent + 4);
            print_node (file, "block", TREE_OPERAND (node, 2), indent + 4);
            break;
        }
        if (code == CALL_EXPR)
        {
            call_expr_arg_iterator iter;
            tree arg;
            print_node (file, "fn", CALL_EXPR_FN (node), indent + 4);
            print_node (file, "static_chain", CALL_EXPR_STATIC_CHAIN (node),
                        indent + 4);
            i = 0;
            FOR_EACH_CALL_EXPR_ARG (arg, iter, node)
            {
                char temp[10];
                sprintf (temp, "arg %d", i);
                print_node (file, temp, arg, indent + 4);
                i++;
            }
        }
Ejemplo n.º 11
0
static void
most_expensive_mult_to_index (tree type, struct mem_address *parts,
			      aff_tree *addr, bool speed)
{
  addr_space_t as = TYPE_ADDR_SPACE (type);
  machine_mode address_mode = targetm.addr_space.address_mode (as);
  HOST_WIDE_INT coef;
  unsigned best_mult_cost = 0, acost;
  tree mult_elt = NULL_TREE, elt;
  unsigned i, j;
  enum tree_code op_code;

  offset_int best_mult = 0;
  for (i = 0; i < addr->n; i++)
    {
      if (!wi::fits_shwi_p (addr->elts[i].coef))
	continue;

      coef = addr->elts[i].coef.to_shwi ();
      if (coef == 1
	  || !multiplier_allowed_in_address_p (coef, TYPE_MODE (type), as))
	continue;

      acost = mult_by_coeff_cost (coef, address_mode, speed);

      if (acost > best_mult_cost)
	{
	  best_mult_cost = acost;
	  best_mult = offset_int::from (addr->elts[i].coef, SIGNED);
	}
    }

  if (!best_mult_cost)
    return;

  /* Collect elements multiplied by best_mult.  */
  for (i = j = 0; i < addr->n; i++)
    {
      offset_int amult = offset_int::from (addr->elts[i].coef, SIGNED);
      offset_int amult_neg = -wi::sext (amult, TYPE_PRECISION (addr->type));

      if (amult == best_mult)
	op_code = PLUS_EXPR;
      else if (amult_neg == best_mult)
	op_code = MINUS_EXPR;
      else
	{
	  addr->elts[j] = addr->elts[i];
	  j++;
	  continue;
	}

      elt = fold_convert (sizetype, addr->elts[i].val);
      if (mult_elt)
	mult_elt = fold_build2 (op_code, sizetype, mult_elt, elt);
      else if (op_code == PLUS_EXPR)
	mult_elt = elt;
      else
	mult_elt = fold_build1 (NEGATE_EXPR, sizetype, elt);
    }
  addr->n = j;

  parts->index = mult_elt;
  parts->step = wide_int_to_tree (sizetype, best_mult);
}