Data Structures
struct	sese_s
struct	ifsese_s
struct	rename_map_elt_s
struct	gimple_bb

Typedefs
typedef struct sese_s *	sese
typedef struct ifsese_s *	ifsese
typedef struct rename_map_elt_s *	rename_map_elt
typedef struct gimple_bb *	gimple_bb_p

Functions
sese	new_sese (edge, edge)
void	free_sese (sese)
void	sese_insert_phis_for_liveouts (sese, basic_block, edge, edge)
void	build_sese_loop_nests (sese)
edge	copy_bb_and_scalar_dependences (basic_block, sese, edge, vec< tree >, bool *)
struct loop *	outermost_loop_in_sese (sese, basic_block)
tree	scalar_evolution_in_region (sese, loop_p, tree)
static bool	sese_contains_loop ()
static unsigned	sese_nb_params ()
static bool	bb_in_region ()
static bool	bb_in_sese_p ()
static bool	stmt_in_sese_p ()
static bool	defined_in_sese_p ()
static bool	loop_in_sese_p ()
static unsigned int	sese_loop_depth ()
static sese	split_region_for_bb ()
static basic_block	block_before_sese ()
void	if_region_set_false_region (ifsese, sese)
ifsese	move_sese_in_condition (sese)
edge	get_true_edge_from_guard_bb (basic_block)
edge	get_false_edge_from_guard_bb (basic_block)
void	set_ifsese_condition (ifsese, tree)
static edge	if_region_entry ()
static edge	if_region_exit ()
static basic_block	if_region_get_condition_block ()
hashval_t	rename_map_elt_info (const void *)
int	eq_rename_map_elts (const void , const void )
static rename_map_elt	new_rename_map_elt ()
static void	recompute_all_dominators ()
static struct loop *	gbb_loop ()
static loop_p	gbb_loop_at_index ()
static int	nb_common_loops ()
static bool	scev_analyzable_p ()

Typedef Documentation

typedef struct gimple_bb * gimple_bb_p

typedef struct ifsese_s * ifsese

   A single entry single exit specialized for conditions.

typedef struct rename_map_elt_s * rename_map_elt

   Structure containing the mapping between the old names and the new
   names used after block copy in the new loop context.

typedef struct sese_s * sese

   A Single Entry, Single Exit region is a part of the CFG delimited
   by two edges.

Function Documentation

static bool bb_in_region ( )

inlinestatic

   Checks whether BB is contained in the region delimited by ENTRY and
   EXIT blocks.

       Check that there are no edges coming in the region: all the
       predecessors of EXIT are dominated by ENTRY.

static bool bb_in_sese_p ( )

inlinestatic

   Checks whether BB is contained in the region delimited by ENTRY and
   EXIT blocks.

References gimple_bb().

Referenced by print_graphite_scop_statistics(), and sese_record_loop().

static basic_block block_before_sese ( )

inlinestatic

   Returns the block preceding the entry of a SESE.

Referenced by move_sese_in_condition().

void build_sese_loop_nests ( sese )

edge copy_bb_and_scalar_dependences	(	basic_block	bb,
		sese	region,
		edge	next_e,
		vec< tree >	iv_map,
		bool *	gloog_error
	)

   Copies BB and includes in the copied BB all the statements that can
   be reached following the use-def chains from the memory accesses,
   and returns the next edge following this new block.  GLOOG_ERROR is
   set when the code generation cannot continue.

static bool defined_in_sese_p ( )

inlinestatic

   Returns true when NAME is defined in REGION.

Referenced by move_sese_in_condition().

int eq_rename_map_elts	(	const void *	,
		const void *
	)

void free_sese ( sese )

static struct loop* gbb_loop ( )

staticread

   Return the innermost loop that contains the basic block GBB.

References find_common_loop(), and sese_loop_depth().

static loop_p gbb_loop_at_index ( )

inlinestatic

   Returns the gimple loop, that corresponds to the loop_iterator_INDEX.
   If there is no corresponding gimple loop, we return NULL.

Referenced by graphite_create_new_loop().

edge get_false_edge_from_guard_bb ( basic_block )

edge get_true_edge_from_guard_bb ( basic_block )

static edge if_region_entry ( )

inlinestatic

References rename_map_elt_s::expr, and rename_map_elt_s::old_name.

static edge if_region_exit ( )

inlinestatic

static basic_block if_region_get_condition_block ( )

inlinestatic

References rename_map_elt_s::expr, and rename_map_elt_s::old_name.

void if_region_set_false_region	(	ifsese	,
		sese
	)

static bool loop_in_sese_p ( )

inlinestatic

   Returns true when LOOP is in REGION.

References loop_outer().

Referenced by close_phi_written_to_memory(), move_sese_in_condition(), and print_graphite_scop_statistics().

ifsese move_sese_in_condition ( sese )

static int nb_common_loops ( )

inlinestatic

   The number of common loops in REGION for GBB1 and GBB2.

static rename_map_elt new_rename_map_elt ( )

inlinestatic

   Constructs a new SCEV_INFO_STR structure for VAR and INSTANTIATED_BELOW.

References gimple_bb::bb, and gimple_bb::pbb.

sese new_sese	(	edge	,
		edge
	)

struct loop* outermost_loop_in_sese	(	sese	,
		basic_block
	)

read

static void recompute_all_dominators ( )

inlinestatic

   Free and compute again all the dominators information.

Referenced by translate_clast_assignment().

hashval_t rename_map_elt_info ( const void * )

tree scalar_evolution_in_region	(	sese	,
		loop_p	,
		tree
	)

static bool scev_analyzable_p ( )

inlinestatic

   Return true when DEF can be analyzed in REGION by the scalar
   evolution analyzer.

     When Graphite generates code for a scev, the code generator
     expresses the scev in function of a single induction variable.
     This is unsafe for floating point computations, as it may replace
     a floating point sum reduction with a multiplication.  The
     following test returns false for non integer types to avoid such
     problems.

Referenced by rewrite_reductions_out_of_ssa().

static bool sese_contains_loop ( )

inlinestatic

   Check that SESE contains LOOP.

Referenced by eq_rename_map_elts().

void sese_insert_phis_for_liveouts	(	sese	region,
		basic_block	bb,
		edge	false_e,
		edge	true_e
	)

@verbatim

Insert in the block BB phi nodes for variables defined in REGION and used outside the REGION. The code generation moves REGION in the else clause of an "if (1)" and generates code in the then clause that is at this point empty:

| if (1) | empty; | else | REGION;

References edge_def::flags.

static unsigned int sese_loop_depth ( )

inlinestatic

   Returns the loop depth of LOOP in REGION.  The loop depth
   is the same as the normal loop depth, but limited by a region.

   Example:

   loop_0
     loop_1
       {
         S0
            <- region start
         S1

         loop_2
           S2

         S3
            <- region end
       }

    loop_0 does not exist in the region -> invalid
    loop_1 exists, but is not completely contained in the region -> depth 0
    loop_2 is completely contained -> depth 1

Referenced by gbb_loop().

static unsigned sese_nb_params ( )

inlinestatic

   The number of parameters in REGION.

void set_ifsese_condition	(	ifsese	,
		tree
	)

static sese split_region_for_bb ( )

inlinestatic

   Splits BB to make a single entry single exit region.

static bool stmt_in_sese_p ( )

inlinestatic

   Returns true when STMT is defined in REGION.

Data Structures

Typedefs

Functions

Typedef Documentation

Function Documentation