cgraphbuild.c File Reference

Data Structures
struct	record_reference_ctx

Functions
static tree	record_reference ()
static void	record_type_list ()
static void	record_eh_tables ()
int	compute_call_stmt_bb_frequency ()
static bool	mark_address ()
static bool	mark_load ()
static bool	mark_store ()
void	ipa_record_stmt_references ()
static unsigned int	build_cgraph_edges ()
gimple_opt_pass *	make_pass_build_cgraph_edges ()
void	record_references_in_initializer ()
unsigned int	rebuild_cgraph_edges ()
void	cgraph_rebuild_references ()
gimple_opt_pass *	make_pass_rebuild_cgraph_edges ()
static unsigned int	remove_cgraph_callee_edges ()
gimple_opt_pass *	make_pass_remove_cgraph_callee_edges ()

---

Function Documentation

static unsigned int build_cgraph_edges ( )

static

Create cgraph edges for function calls.
   Also look for functions and variables having addresses taken.   

References cfun, cgraph_create_edge(), cgraph_create_indirect_edge(), cgraph_get_create_node(), cgraph_get_create_real_symbol_node(), cgraph_get_node(), compute_call_stmt_bb_frequency(), basic_block_def::count, current_function_decl, gimple_call_flags(), gimple_call_fndecl(), gimple_omp_parallel_child_fn(), gimple_omp_task_child_fn(), gimple_omp_task_copy_fn(), gsi_end_p(), gsi_next(), gsi_start_bb(), gsi_start_phis(), gsi_stmt(), ipa_record_reference(), ipa_record_stmt_references(), IPA_REF_ADDR, is_gimple_call(), is_gimple_debug(), pointer_set_create(), pointer_set_destroy(), record_eh_tables(), varpool_finalize_decl(), and visited_nodes.

void cgraph_rebuild_references

(

void

)

Rebuild cgraph edges for current function node.  This needs to be run after
   passes that don't update the cgraph.   

References cfun, cgraph_get_node(), cgraph_node::count, current_function_decl, gsi_end_p(), gsi_next(), gsi_start_bb(), gsi_start_phis(), gsi_stmt(), ipa_record_stmt_references(), ipa_remove_reference(), record_eh_tables(), symtab_node_base::ref_list, ipa_ref::speculative, and cgraph_node::symbol.

Referenced by tree_function_versioning().

int compute_call_stmt_bb_frequency

(

)

Computes the frequency of the call statement so that it can be stored in
   cgraph_edge.  BB is the basic block of the call statement.   

References basic_block_def::frequency, and PROFILE_ABSENT.

void ipa_record_stmt_references

(

)

Record all references from NODE that are taken in statement STMT.   

References mark_address(), mark_load(), mark_store(), and walk_stmt_load_store_addr_ops().

gimple_opt_pass* make_pass_build_cgraph_edges

(

)

gimple_opt_pass* make_pass_rebuild_cgraph_edges

(

)

gimple_opt_pass* make_pass_remove_cgraph_callee_edges

(

)

static bool mark_address ( )

static

Mark address taken in STMT.   

References cgraph_get_create_real_symbol_node(), cgraph_mark_address_taken_node(), get_base_address(), ipa_record_reference(), IPA_REF_ADDR, and varpool_node_for_decl().

Referenced by ipa_record_stmt_references().

static bool mark_load ( )

static

Mark load of T.   

References cgraph_get_create_real_symbol_node(), cgraph_mark_address_taken_node(), get_base_address(), ipa_record_reference(), IPA_REF_ADDR, IPA_REF_LOAD, and varpool_node_for_decl().

Referenced by ipa_record_stmt_references().

static bool mark_store ( )

static

Mark store of T.   

References get_base_address(), ipa_record_reference(), IPA_REF_STORE, and varpool_node_for_decl().

Referenced by ipa_record_stmt_references().

unsigned int rebuild_cgraph_edges

(

void

)

Rebuild cgraph edges for current function node.  This needs to be run after
   passes that don't update the cgraph.   

References cfun, cgraph_create_edge(), cgraph_create_indirect_edge(), cgraph_get_create_node(), cgraph_get_node(), cgraph_node_remove_callees(), compute_call_stmt_bb_frequency(), basic_block_def::count, cgraph_node::count, current_function_decl, gimple_call_flags(), gimple_call_fndecl(), cgraph_node::global, gsi_end_p(), gsi_next(), gsi_start_bb(), gsi_start_phis(), gsi_stmt(), cgraph_global_info::inlined_to, ipa_record_stmt_references(), ipa_remove_all_references(), is_gimple_call(), record_eh_tables(), symtab_node_base::ref_list, and cgraph_node::symbol.

Referenced by apply_ipa_transforms(), execute_function_todo(), expand_omp_taskreg(), expand_thunk(), ipa_tm_scan_calls_transaction(), modify_function(), split_function(), and tree_profiling().

static void record_eh_tables ( )

static

Record all references we will introduce by producing EH tables
   for NODE.   

References eh_region_d::eh_region_u::allowed, cgraph_get_create_real_symbol_node(), cgraph_mark_address_taken_node(), symtab_node_base::decl, eh_region_d::eh_region_u::eh_try, ERT_ALLOWED_EXCEPTIONS, ERT_CLEANUP, ERT_MUST_NOT_THROW, ERT_TRY, eh_region_d::eh_region_u::eh_region_u_try::first_catch, eh_region_d::inner, ipa_record_reference(), IPA_REF_ADDR, eh_catch_d::next_catch, eh_region_d::next_peer, eh_region_d::outer, record_type_list(), cgraph_node::symbol, eh_region_d::type, eh_catch_d::type_list, eh_region_d::eh_region_u::eh_region_u_allowed::type_list, and eh_region_d::u.

Referenced by build_cgraph_edges(), cgraph_rebuild_references(), and rebuild_cgraph_edges().

static tree record_reference ( )

static

Walk tree and record all calls and references to functions/variables.
   Called via walk_tree: TP is pointer to tree to be examined.
   When DATA is non-null, record references to callgraph.

References canonicalize_constructor_val(), cgraph_get_create_real_symbol_node(), cgraph_mark_address_taken_node(), get_base_var(), ipa_record_reference(), IPA_REF_ADDR, record_reference_ctx::only_vars, record_reference_ctx::varpool_node, and varpool_node_for_decl().

Referenced by record_references_in_initializer().

void record_references_in_initializer

(

)

Record references to functions and other variables present in the
   initial value of DECL, a variable.
   When ONLY_VARS is true, we mark needed only variables, not functions.   

References record_reference_ctx::only_vars, pointer_set_create(), pointer_set_destroy(), record_reference(), record_reference_ctx::varpool_node, varpool_node_for_decl(), and visited_nodes.

static void record_type_list ( )

static

Record references to typeinfos in the type list LIST.   

References ipa_record_reference(), IPA_REF_ADDR, lookup_type_for_runtime(), and varpool_node_for_decl().

Referenced by record_eh_tables().

static unsigned int remove_cgraph_callee_edges ( )

static

References cgraph_get_node(), cgraph_node_remove_callees(), current_function_decl, ipa_remove_all_references(), symtab_node_base::ref_list, and cgraph_node::symbol.