This graph shows which files directly or indirectly include this file:

Data Structures
struct	copy_body_data
struct	eni_weights_d

Typedefs
typedef struct copy_body_data	copy_body_data
typedef struct eni_weights_d	eni_weights

Enumerations
enum	copy_body_cge_which { CB_CGE_DUPLICATE, CB_CGE_MOVE, CB_CGE_MOVE_CLONES }

Functions
tree	copy_tree_body_r (tree , int , void *)
void	insert_decl_map (copy_body_data *, tree, tree)
unsigned int	optimize_inline_calls (tree)
tree	maybe_inline_call_in_expr (tree)
bool	tree_inlinable_function_p (tree)
tree	copy_tree_r (tree , int , void *)
tree	copy_decl_no_change (tree decl, copy_body_data *id)
int	estimate_move_cost (tree type)
int	estimate_num_insns (gimple, eni_weights *)
int	estimate_num_insns_fn (tree, eni_weights *)
int	count_insns_seq (gimple_seq, eni_weights *)
bool	tree_versionable_function_p (tree)
tree	remap_decl (tree decl, copy_body_data *id)
tree	remap_type (tree type, copy_body_data *id)
gimple_seq	copy_gimple_seq_and_replace_locals (gimple_seq seq)
HOST_WIDE_INT	estimated_stack_frame_size (struct cgraph_node *)

Variables
eni_weights	eni_inlining_weights
eni_weights	eni_size_weights
eni_weights	eni_time_weights

Typedef Documentation

typedef struct copy_body_data copy_body_data

Data required for function body duplication.

typedef struct eni_weights_d eni_weights

Weights of constructions for estimate_num_insns.

Enumeration Type Documentation

enum copy_body_cge_which

Indicate the desired behavior wrt call graph edges. We can either duplicate the edge (inlining, cloning), move the edge (versioning, parallelization), or move the edges of the clones (saving).

Enumerator:

CB_CGE_DUPLICATE
CB_CGE_MOVE
CB_CGE_MOVE_CLONES

Function Documentation

tree copy_decl_no_change	(	tree	decl,
		copy_body_data *	id
	)

gimple_seq copy_gimple_seq_and_replace_locals ( gimple_seq seq )

tree copy_tree_body_r	(	tree *	,
		int *	,
		void *
	)

Function prototypes.

tree copy_tree_r	(	tree *	,
		int *	,
		void *
	)

int count_insns_seq	(	gimple_seq	,
		eni_weights *
	)

int estimate_move_cost ( tree type )

int estimate_num_insns	(	gimple	,
		eni_weights *
	)

int estimate_num_insns_fn	(	tree	,
		eni_weights *
	)

HOST_WIDE_INT estimated_stack_frame_size ( struct cgraph_node * )

void insert_decl_map	(	copy_body_data *	,
		tree	,
		tree
	)

tree maybe_inline_call_in_expr ( tree )

unsigned int optimize_inline_calls ( tree )

tree remap_decl	(	tree	decl,
		copy_body_data *	id
	)

tree remap_type	(	tree	type,
		copy_body_data *	id
	)

bool tree_inlinable_function_p ( tree )

bool tree_versionable_function_p ( tree )

Variable Documentation

eni_weights eni_inlining_weights

Weights that estimate_num_insns uses for heuristics in inlining.

eni_weights eni_size_weights

Weights that estimate_num_insns uses to estimate the size of the produced code.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see http://www.gnu.org/licenses/. I'm not real happy about this, but we need to handle gimple and non-gimple trees. Inlining, Cloning, Versioning, Parallelization

Inlining: a function body is duplicated, but the PARM_DECLs are remapped into VAR_DECLs, and non-void RETURN_EXPRs become MODIFY_EXPRs that store to a dedicated returned-value variable. The duplicated eh_region info of the copy will later be appended to the info for the caller; the eh_region info in copied throwing statements and RESX statements are adjusted accordingly.

Cloning: (only in C++) We have one body for a con/de/structor, and multiple function decls, each with a unique parameter list. Duplicate the body, using the given splay tree; some parameters will become constants (like 0 or 1).

Versioning: a function body is duplicated and the result is a new function rather than into blocks of an existing function as with inlining. Some parameters will become constants.

Parallelization: a region of a function is duplicated resulting in a new function. Variables may be replaced with complex expressions to enable shared variable semantics.

All of these will simultaneously lookup any callgraph edges. If we're going to inline the duplicated function body, and the given function has some cloned callgraph nodes (one for each place this function will be inlined) those callgraph edges will be duplicated. If we're cloning the body, those callgraph edges will be updated to point into the new body. (Note that the original callgraph node and edge list will not be altered.)

See the CALL_EXPR handling case in copy_tree_body_r (). To Do:

o In order to make inlining-on-trees work, we pessimized function-local static constants. In particular, they are now always output, even when not addressed. Fix this by treating function-local static constants just like global static constants; the back-end already knows not to output them if they are not needed.

o Provide heuristics to clamp inlining of recursive template calls? Weights that estimate_num_insns uses to estimate the size of the produced code.

Referenced by count_insns(), and tree_ssa_unswitch_loops().

eni_weights eni_time_weights

Weights that estimate_num_insns uses to estimate the time necessary to execute the produced code.

Data Structures

Typedefs

Enumerations

Functions

Variables

Typedef Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation