cgraphclones.cc File Reference

#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "backend.h"
#include "target.h"
#include "rtl.h"
#include "tree.h"
#include "gimple.h"
#include "stringpool.h"
#include "cgraph.h"
#include "lto-streamer.h"
#include "tree-eh.h"
#include "tree-cfg.h"
#include "tree-inline.h"
#include "attribs.h"
#include "dumpfile.h"
#include "gimple-pretty-print.h"
#include "alloc-pool.h"
#include "symbol-summary.h"
#include "tree-vrp.h"
#include "sreal.h"
#include "ipa-cp.h"
#include "ipa-prop.h"
#include "ipa-fnsummary.h"
#include "symtab-thunks.h"
#include "symtab-clones.h"
#include "gt-cgraphclones.h"

Include dependency graph for cgraphclones.cc:

Functions
void	set_new_clone_decl_and_node_flags (cgraph_node *new_node)
static cgraph_node *	duplicate_thunk_for_node (cgraph_node *thunk, cgraph_node *node)
void	dump_callgraph_transformation (const cgraph_node *original, const cgraph_node *clone, const char *suffix)
static void	localize_profile (cgraph_node *n)
tree	clone_function_name_numbered (const char *name, const char *suffix)
tree	clone_function_name_numbered (tree decl, const char *suffix)
tree	clone_function_name (const char *name, const char *suffix, unsigned long number)
tree	clone_function_name (tree decl, const char *suffix, unsigned long number)
tree	clone_function_name (tree decl, const char *suffix)
static void	update_call_expr (cgraph_node *new_version)

Variables
static hash_map< const char *, unsigned > *	clone_fn_ids

Function Documentation

clone_function_name() [1/3]

tree clone_function_name	(	const char *	name,
		const char *	suffix,
		unsigned long	number )

Return a new assembler name for a clone of decl named NAME.  Apart
from the string SUFFIX, the new name will end with the specified
NUMBER.  If clone numbering is not needed then the two argument
clone_function_name should be used instead.   

References ASM_FORMAT_PRIVATE_NAME, get_identifier(), and symbol_table::symbol_suffix_separator().

Referenced by clone_function_name(), clone_function_name_numbered(), create_dispatcher_calls(), create_locality_clone(), create_target_clone(), cgraph_node::create_version_clone_with_body(), cgraph_node::create_virtual_clone(), expand_omp_target(), final_scan_insn_1(), and symtab_node::noninterposable_alias().

clone_function_name() [2/3]

tree clone_function_name	(	tree	decl,
		const char *	suffix )

Return a new assembler name ending with the string SUFFIX for a
clone of DECL.   

References DECL_ASSEMBLER_NAME, get_identifier(), IDENTIFIER_POINTER, and symbol_table::symbol_suffix_separator().

clone_function_name() [3/3]

tree clone_function_name	(	tree	decl,
		const char *	suffix,
		unsigned long	number )

Return a new assembler name for a clone of DECL.  Apart from the
string SUFFIX, the new name will end with the specified NUMBER.  If
clone numbering is not needed then the two argument
clone_function_name should be used instead.   

References clone_function_name(), DECL_ASSEMBLER_NAME, and IDENTIFIER_POINTER.

clone_function_name_numbered() [1/2]

tree clone_function_name_numbered	(	const char *	name,
		const char *	suffix )

Return a new assembler name for a clone of decl named NAME.  Apart
from the string SUFFIX, the new name will end with a unique (for
each NAME) unspecified number.  If clone numbering is not needed
then the two argument clone_function_name should be used instead.
Should not be called directly except for by
lto-partition.cc:privatize_symbol_name_1.   

References clone_fn_ids, clone_function_name(), clone_function_name_numbered(), hash_map< KeyId, Value, Traits >::create_ggc(), get_identifier(), and IDENTIFIER_POINTER.

Referenced by clone_function_name_numbered(), clone_function_name_numbered(), create_assumption_fn(), create_omp_child_function_name(), cgraph_node::create_version_clone_with_body(), duplicate_thunk_for_node(), and simd_clone_create().

clone_function_name_numbered() [2/2]

tree clone_function_name_numbered	(	tree	decl,
		const char *	suffix )

Return a new assembler name for a clone of DECL.  Apart from string
SUFFIX, the new name will end with a unique (for each DECL
assembler name) unspecified number.  If clone numbering is not
needed then the two argument clone_function_name should be used
instead.   

References clone_function_name_numbered(), DECL_ASSEMBLER_NAME, and IDENTIFIER_POINTER.

dump_callgraph_transformation()

void dump_callgraph_transformation	(	const cgraph_node *	original,
		const cgraph_node *	clone,
		const char *	suffix )

Dump information about creation of a call graph node clone to the dump file
created by the -fdump-ipa-clones option.  ORIGINAL is the function being
cloned, CLONE is the new clone.  SUFFIX is a string that helps identify the
reason for cloning, often it is the suffix used by a particular IPA pass to
create unique function names.  SUFFIX can be NULL and in that case the
dumping will not take place, which must be the case only for helper clones
which will never be emitted to the output.   

References symtab_node::asm_name(), symtab_node::decl, DECL_SOURCE_COLUMN, DECL_SOURCE_FILE, DECL_SOURCE_LINE, symtab_node::get_uid(), and symtab.

Referenced by clone_inlined_nodes(), cgraph_node::create_clone(), and cgraph_node::create_version_clone().

duplicate_thunk_for_node()

cgraph_node * duplicate_thunk_for_node ( cgraph_node * thunk, cgraph_node * node )

static

Duplicate thunk THUNK if necessary but make it to refer to NODE.
ARGS_TO_SKIP, if non-NULL, determines which parameters should be omitted.
Function can return NODE if no thunk is necessary, which can happen when
thunk is this_adjusting but we are removing this parameter.   

References cgraph_edge::callee, cgraph_node::callees, cgraph_edge::caller, cgraph_node::callers, cgraph_node::can_change_signature, clone_function_name_numbered(), copy_node(), cgraph_node::count, cgraph_node::create(), cgraph_node::create_edge(), symtab_node::decl, DECL_ARGUMENTS, DECL_CHAIN, DECL_CONTEXT, DECL_IGNORED_P, DECL_INITIAL, DECL_NAME, DECL_RESULT, DECL_RTL_SET_P, DECL_STRUCT_FUNCTION, symtab_node::definition, duplicate_thunk_for_node(), ipa_param_adjustments::first_param_intact_p(), cgraph_node::former_clone_of, gcc_checking_assert, clone_info::get(), thunk_info::get(), clone_info::get_create(), cgraph_node::get_untransformed_body(), i, i2, cgraph_node::merged_comdat, cgraph_node::merged_extern_inline, ipa_param_body_adjustments::modify_formal_parameters(), cgraph_edge::next_caller, NULL, clone_info::param_adjustments, SET_DECL_ASSEMBLER_NAME, set_new_clone_decl_and_node_flags(), symtab, cgraph_node::thunk, cgraph_node::ultimate_alias_target(), symtab_node::unique_name, and cgraph_node::unit_id.

Referenced by duplicate_thunk_for_node(), and cgraph_edge::redirect_callee_duplicating_thunks().

localize_profile()

void localize_profile ( cgraph_node * n )

static

Turn profile of N to local profile.    

References cgraph_node::callees, cgraph_node::count, profile_count::guessed_local(), cgraph_node::indirect_calls, localize_profile(), and cgraph_edge::next_callee.

Referenced by cgraph_node::create_clone(), and localize_profile().

set_new_clone_decl_and_node_flags()

void set_new_clone_decl_and_node_flags

(

cgraph_node *

new_node

)

Set flags of NEW_NODE and its decl.  NEW_NODE is a newly created private
clone or its thunk.   

References symtab_node::decl, DECL_COMDAT, DECL_EXTERNAL, DECL_IS_REPLACEABLE_OPERATOR, DECL_SET_IS_OPERATOR_DELETE, DECL_SET_IS_OPERATOR_NEW, DECL_STATIC_CONSTRUCTOR, DECL_STATIC_DESTRUCTOR, DECL_VIRTUAL_P, DECL_WEAK, symtab_node::externally_visible, cgraph_node::local, cgraph_node::lowered, symtab_node::semantic_interposition, and TREE_PUBLIC.

Referenced by create_locality_clone(), cgraph_node::create_virtual_clone(), and duplicate_thunk_for_node().

update_call_expr()

void update_call_expr ( cgraph_node * new_version )

static

The edges representing the callers of the NEW_VERSION node were
fixed by cgraph_function_versioning (), now the call_expr in their
respective tree code should be updated to call the NEW_VERSION.   

References cgraph_edge::call_stmt, cgraph_edge::caller, cgraph_node::callers, symtab_node::decl, DECL_STRUCT_FUNCTION, gcc_assert, gimple_call_set_fndecl(), maybe_clean_eh_stmt_fn(), and cgraph_edge::next_caller.

Referenced by cgraph_node::create_version_clone_with_body().

Variable Documentation

clone_fn_ids

hash_map<const char *, unsigned>* clone_fn_ids

static

Referenced by clone_function_name_numbered().