diff options
Diffstat (limited to 'gcc/tree.h')
| -rw-r--r-- | gcc/tree.h | 50 |
1 files changed, 33 insertions, 17 deletions
diff --git a/gcc/tree.h b/gcc/tree.h index 13c684af37a..75b3dcfccf1 100644 --- a/gcc/tree.h +++ b/gcc/tree.h @@ -1887,11 +1887,8 @@ struct GTY(()) tree_exp { #define SSA_NAME_PTR_INFO(N) \ SSA_NAME_CHECK (N)->ssa_name.ptr_info -#ifndef _TREE_FLOW_H +/* Defined in tree-flow.h. */ struct ptr_info_def; -#endif - - /* Immediate use linking structure. This structure is used for maintaining a doubly linked list of uses of an SSA_NAME. */ @@ -2090,26 +2087,34 @@ extern enum machine_mode vector_type_mode (const_tree); #define SET_TYPE_MODE(NODE, MODE) \ (TYPE_CHECK (NODE)->type.mode = (MODE)) -/* The "canonical" type for this type node, which can be used to - compare the type for equality with another type. If two types are +/* The "canonical" type for this type node, which is used by frontends to + compare the type for equality with another type. If two types are equal (based on the semantics of the language), then they will have equivalent TYPE_CANONICAL entries. - As a special case, if TYPE_CANONICAL is NULL_TREE, then it cannot - be used for comparison against other types. Instead, the type is + As a special case, if TYPE_CANONICAL is NULL_TREE, and thus + TYPE_STRUCTURAL_EQUALITY_P is true, then it cannot + be used for comparison against other types. Instead, the type is said to require structural equality checks, described in - TYPE_STRUCTURAL_EQUALITY_P. */ + TYPE_STRUCTURAL_EQUALITY_P. + + For unqualified aggregate and function types the middle-end relies on + TYPE_CANONICAL to tell whether two variables can be assigned + to each other without a conversion. The middle-end also makes sure + to assign the same alias-sets to the type partition with equal + TYPE_CANONICAL of their unqualified variants. */ #define TYPE_CANONICAL(NODE) (TYPE_CHECK (NODE)->type.canonical) /* Indicates that the type node requires structural equality - checks. The compiler will need to look at the composition of the + checks. The compiler will need to look at the composition of the type to determine whether it is equal to another type, rather than - just comparing canonical type pointers. For instance, we would need + just comparing canonical type pointers. For instance, we would need to look at the return and parameter types of a FUNCTION_TYPE - node. */ + node. */ #define TYPE_STRUCTURAL_EQUALITY_P(NODE) (TYPE_CANONICAL (NODE) == NULL_TREE) /* Sets the TYPE_CANONICAL field to NULL_TREE, indicating that the - type node requires structural equality. */ + type node requires structural equality. */ #define SET_TYPE_STRUCTURAL_EQUALITY(NODE) (TYPE_CANONICAL (NODE) = NULL_TREE) + #define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific) #define TYPE_IBIT(NODE) (GET_MODE_IBIT (TYPE_MODE (NODE))) #define TYPE_FBIT(NODE) (GET_MODE_FBIT (TYPE_MODE (NODE))) @@ -3458,7 +3463,7 @@ extern tree build_target_option_node (void); for various types of node. */ union GTY ((ptr_alias (union lang_tree_node), - desc ("tree_node_structure (&%h)"))) tree_node { + desc ("tree_node_structure (&%h)"), variable_size)) tree_node { struct tree_base GTY ((tag ("TS_BASE"))) base; struct tree_common GTY ((tag ("TS_COMMON"))) common; struct tree_int_cst GTY ((tag ("TS_INT_CST"))) int_cst; @@ -4006,6 +4011,7 @@ tree_to_double_int (const_tree cst) extern tree double_int_to_tree (tree, double_int); extern bool double_int_fits_to_tree_p (const_tree, double_int); +extern tree force_fit_type_double (tree, double_int, int, bool); /* Create an INT_CST node with a CST value zero extended. */ @@ -4086,6 +4092,7 @@ extern bool range_in_array_bounds_p (tree); extern tree value_member (tree, tree); extern tree purpose_member (const_tree, tree); +extern bool vec_member (const_tree, VEC(tree,gc) *); extern tree chain_index (int, tree); extern int attribute_list_equal (const_tree, const_tree); @@ -4325,7 +4332,7 @@ typedef struct record_layout_info_s tree prev_field; /* The static variables (i.e., class variables, as opposed to instance variables) encountered in T. */ - tree pending_statics; + VEC(tree,gc) *pending_statics; /* Bits remaining in the current alignment group */ int remaining_in_alignment; /* True if we've seen a packed field that didn't have normal @@ -4811,6 +4818,7 @@ extern tree get_callee_fndecl (const_tree); extern int type_num_arguments (const_tree); extern bool associative_tree_code (enum tree_code); extern bool commutative_tree_code (enum tree_code); +extern bool commutative_ternary_tree_code (enum tree_code); extern tree upper_bound_in_type (tree, tree); extern tree lower_bound_in_type (tree, tree); extern int operand_equal_for_phi_arg_p (const_tree, const_tree); @@ -4820,6 +4828,8 @@ extern tree create_artificial_label (location_t); extern const char *get_name (tree); extern bool stdarg_p (tree); extern bool prototype_p (tree); +extern bool is_typedef_decl (tree x); +extern bool typedef_variant_p (tree); extern bool auto_var_in_fn_p (const_tree, const_tree); extern tree build_low_bits_mask (tree, unsigned); extern tree tree_strip_nop_conversions (tree); @@ -4953,6 +4963,10 @@ extern tree build_fold_indirect_ref_loc (location_t, tree); #define fold_indirect_ref(T)\ fold_indirect_ref_loc (UNKNOWN_LOCATION, T) extern tree fold_indirect_ref_loc (location_t, tree); +extern tree build_simple_mem_ref_loc (location_t, tree); +#define build_simple_mem_ref(T)\ + build_simple_mem_ref_loc (UNKNOWN_LOCATION, T) +extern double_int mem_ref_offset (const_tree); extern tree constant_boolean_node (int, tree); extern tree div_if_zero_remainder (enum tree_code, const_tree, const_tree); @@ -5007,9 +5021,8 @@ extern bool fold_builtin_next_arg (tree, bool); extern enum built_in_function builtin_mathfn_code (const_tree); extern tree build_function_call_expr (location_t, tree, tree); extern tree fold_builtin_call_array (location_t, tree, tree, int, tree *); -#define build_call_expr(...)\ - build_call_expr_loc (UNKNOWN_LOCATION, __VA_ARGS__) extern tree build_call_expr_loc (location_t, tree, int, ...); +extern tree build_call_expr (tree, int, ...); extern tree mathfn_built_in (tree, enum built_in_function fn); extern tree c_strlen (tree, int); extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *); @@ -5559,4 +5572,7 @@ is_lang_specific (tree t) return TREE_CODE (t) == LANG_TYPE || TREE_CODE (t) >= NUM_TREE_CODES; } +/* In gimple-low.c. */ +extern bool block_may_fallthru (const_tree); + #endif /* GCC_TREE_H */ |