#ifndef GCC_CGRAPH_H
#define GCC_CGRAPH_H
+#include "plugin-api.h"
#include "vec.h"
#include "tree.h"
#include "basic-block.h"
struct lto_file_decl_data;
extern const char * const cgraph_availability_names[];
+extern const char * const ld_plugin_symbol_resolution_names[];
/* Function inlining information. */
/* Set when function is visible by other units. */
unsigned externally_visible : 1;
-
- /* Set when resolver determines that function is visible by other units. */
- unsigned used_from_object_file : 1;
/* Set once it has been finalized so we consider it to be output. */
unsigned finalized : 1;
bitmap combined_args_to_skip;
};
-enum node_frequency {
- /* This function most likely won't be executed at all.
- (set only when profile feedback is available or via function attribute). */
- NODE_FREQUENCY_UNLIKELY_EXECUTED,
- /* For functions that are known to be executed once (i.e. constructors, destructors
- and main function. */
- NODE_FREQUENCY_EXECUTED_ONCE,
- /* The default value. */
- NODE_FREQUENCY_NORMAL,
- /* Optimize this function hard
- (set only when profile feedback is available or via function attribute). */
- NODE_FREQUENCY_HOT
-};
-
/* The cgraph data structure.
Each function decl has assigned cgraph_node listing callees and callers. */
/* For functions with many calls sites it holds map from call expression
to the edge to speed up cgraph_edge function. */
htab_t GTY((param_is (struct cgraph_edge))) call_site_hash;
-#ifdef ENABLE_CHECKING
- /* Declaration node used to be clone of. Used for checking only.
- We must skip it or we get references from release checking GGC files. */
- tree GTY ((skip)) former_clone_of;
-#endif
+ /* Declaration node used to be clone of. */
+ tree former_clone_of;
PTR GTY ((skip)) aux;
/* Expected number of executions: calculated in profile.c. */
gcov_type count;
+ /* How to scale counts at materialization time; used to merge
+ LTO units with different number of profile runs. */
+ int count_materialization_scale;
/* Unique id of the node. */
int uid;
/* Ordering of all cgraph nodes. */
/* unique id for profiling. pid is not suitable because of different
number of cfg nodes with -fprofile-generate and -fprofile-use */
int pid;
+ enum ld_plugin_symbol_resolution resolution;
/* Set when function must be output for some reason. The primary
use of this flag is to mark functions needed to be output for
/* How commonly executed the node is. Initialized during branch
probabilities pass. */
ENUM_BITFIELD (node_frequency) frequency : 2;
+ /* True when function can only be called at startup (from static ctor). */
+ unsigned only_called_at_startup : 1;
+ /* True when function can only be called at startup (from static dtor). */
+ unsigned only_called_at_exit : 1;
};
typedef struct cgraph_node *cgraph_node_ptr;
HOST_WIDE_INT otr_token;
/* Type of the object from OBJ_TYPE_REF_OBJECT. */
tree otr_type;
+ /* Delta by which must be added to this parameter. For polymorphic calls
+ only. */
+ tree thunk_delta;
/* Index of the parameter that is called. */
int param_index;
/* ECF flags determined from the caller. */
PTR GTY ((skip)) aux;
/* Ordering of all cgraph nodes. */
int order;
+ enum ld_plugin_symbol_resolution resolution;
/* Set when function must be output - it is externally visible
or its address is taken. */
unsigned output : 1;
/* Set when function is visible by other units. */
unsigned externally_visible : 1;
- /* Set when resolver determines that variable is visible by other units. */
- unsigned used_from_object_file : 1;
/* Set for aliases once they got through assemble_alias. Also set for
extra name aliases in varpool_extra_name_alias. */
unsigned alias : 1;
During WPA output it is used to mark nodes that are present in
multiple partitions. */
unsigned in_other_partition : 1;
- /* True when variable is constant and its value is known. */
- unsigned int const_value_known : 1;
};
/* Every top level asm statement is put into a cgraph_asm_node. */
gimple, gcov_type, int, int);
struct cgraph_edge *cgraph_create_indirect_edge (struct cgraph_node *, gimple, int,
gcov_type, int, int);
-struct cgraph_node * cgraph_get_node (tree);
-struct cgraph_node * cgraph_get_node_or_alias (tree);
-struct cgraph_node *cgraph_node (tree);
-bool cgraph_same_body_alias (tree, tree);
-void cgraph_add_thunk (tree, tree, bool, HOST_WIDE_INT, HOST_WIDE_INT, tree, tree);
+struct cgraph_node * cgraph_get_node (const_tree);
+struct cgraph_node * cgraph_get_node_or_alias (const_tree);
+struct cgraph_node * cgraph_node (tree);
+struct cgraph_node * cgraph_same_body_alias (tree, tree);
+struct cgraph_node * cgraph_add_thunk (tree, tree, bool, HOST_WIDE_INT,
+ HOST_WIDE_INT, tree, tree);
void cgraph_remove_same_body_alias (struct cgraph_node *);
struct cgraph_node *cgraph_node_for_asm (tree);
struct cgraph_edge *cgraph_edge (struct cgraph_node *, gimple);
int, bool, VEC(cgraph_edge_p,heap) *);
void cgraph_redirect_edge_callee (struct cgraph_edge *, struct cgraph_node *);
-void cgraph_make_edge_direct (struct cgraph_edge *, struct cgraph_node *);
+void cgraph_make_edge_direct (struct cgraph_edge *, struct cgraph_node *, tree);
struct cgraph_asm_node *cgraph_add_asm_node (tree);
const char *clone_name);
void cgraph_set_nothrow_flag (struct cgraph_node *, bool);
-void cgraph_set_readonly_flag (struct cgraph_node *, bool);
-void cgraph_set_pure_flag (struct cgraph_node *, bool);
-void cgraph_set_looping_const_or_pure_flag (struct cgraph_node *, bool);
+void cgraph_set_const_flag (struct cgraph_node *, bool, bool);
+void cgraph_set_pure_flag (struct cgraph_node *, bool, bool);
tree clone_function_name (tree decl, const char *);
bool cgraph_node_cannot_return (struct cgraph_node *);
bool cgraph_edge_cannot_lead_to_return (struct cgraph_edge *);
(struct cgraph_node *node);
bool cgraph_can_remove_if_no_direct_calls_and_refs_p
(struct cgraph_node *node);
+bool resolution_used_from_other_file_p (enum ld_plugin_symbol_resolution resolution);
+bool cgraph_used_from_object_file_p (struct cgraph_node *node);
+bool varpool_used_from_object_file_p (struct varpool_node *node);
/* In cgraphunit.c */
extern FILE *cgraph_dump_file;
void dump_varpool_node_set (FILE *, varpool_node_set);
void debug_varpool_node_set (varpool_node_set);
void ipa_discover_readonly_nonaddressable_vars (void);
+bool cgraph_comdat_can_be_unshared_p (struct cgraph_node *);
/* In predict.c */
bool cgraph_maybe_hot_edge_p (struct cgraph_edge *e);
bool cgraph_node_can_be_local_p (struct cgraph_node *);
-struct varpool_node * varpool_get_node (tree decl);
+struct varpool_node * varpool_get_node (const_tree decl);
void varpool_remove_node (struct varpool_node *node);
bool varpool_assemble_pending_decls (void);
bool varpool_assemble_decl (struct varpool_node *node);
bool varpool_analyze_pending_decls (void);
void varpool_remove_unreferenced_decls (void);
void varpool_empty_needed_queue (void);
-bool varpool_extra_name_alias (tree, tree);
+struct varpool_node * varpool_extra_name_alias (tree, tree);
const char * varpool_node_name (struct varpool_node *node);
void varpool_reset_queue (void);
-bool varpool_decide_const_value_known (struct varpool_node *node);
+bool const_value_known_p (tree);
/* Walk all reachable static variables. */
#define FOR_EACH_STATIC_VARIABLE(node) \
static inline bool
cgraph_only_called_directly_p (struct cgraph_node *node)
{
+ gcc_assert (!node->global.inlined_to);
return (!node->needed && !node->address_taken
&& !node->reachable_from_other_partition
&& !DECL_STATIC_CONSTRUCTOR (node->decl)
static inline bool
cgraph_can_remove_if_no_direct_calls_p (struct cgraph_node *node)
{
+ /* Extern inlines can always go, we will use the external definition. */
+ if (DECL_EXTERNAL (node->decl))
+ return true;
return !node->address_taken && cgraph_can_remove_if_no_direct_calls_and_refs_p (node);
}
+/* Return true when function NODE can be removed from callgraph
+ if all direct calls are eliminated. */
+
+static inline bool
+varpool_can_remove_if_no_refs (struct varpool_node *node)
+{
+ return (!node->force_output && !node->used_from_other_partition
+ && (flag_toplevel_reorder || DECL_COMDAT (node->decl)
+ || DECL_ARTIFICIAL (node->decl))
+ && (DECL_COMDAT (node->decl) || !node->externally_visible));
+}
+
/* Return true when all references to VNODE must be visible in ipa_ref_list.
i.e. if the variable is not externally visible or not used in some magic
way (asm statement or such).
OSDN Git Service
