12.6 Manipulating GIMPLE statements
This section documents all the functions available to handle each
of the GIMPLE instructions.
12.6.1 Common accessors
The following are common accessors for gimple statements.
— GIMPLE function: enum
gimple_code gimple_code (
gimple g)
Return the code for statement G
.
— GIMPLE function: basic_block
gimple_bb (
gimple g)
Return the basic block to which statement G
belongs to.
— GIMPLE function: tree
gimple_block (
gimple g)
Return the lexical scope block holding statement G
.
— GIMPLE function: tree
gimple_expr_type (
gimple stmt)
Return the type of the main expression computed by STMT
. Return
void_type_node
if STMT
computes nothing. This will only return
something meaningful for GIMPLE_ASSIGN
, GIMPLE_COND
and
GIMPLE_CALL
. For all other tuple codes, it will return
void_type_node
.
— GIMPLE function: enum
tree_code gimple_expr_code (
gimple stmt)
Return the tree code for the expression computed by STMT
. This
is only meaningful for GIMPLE_CALL
, GIMPLE_ASSIGN
and
GIMPLE_COND
. If STMT
is GIMPLE_CALL
, it will return CALL_EXPR
.
For GIMPLE_COND
, it returns the code of the comparison predicate.
For GIMPLE_ASSIGN
it returns the code of the operation performed
by the RHS
of the assignment.
— GIMPLE function: void
gimple_set_block (
gimple g, tree block)
Set the lexical scope block of G
to BLOCK
.
— GIMPLE function: location_t
gimple_locus (
gimple g)
Return locus information for statement G
.
— GIMPLE function: void
gimple_set_locus (
gimple g, location_t locus)
Set locus information for statement G
.
— GIMPLE function: bool
gimple_locus_empty_p (
gimple g)
Return true if G
does not have locus information.
— GIMPLE function: bool
gimple_no_warning_p (
gimple stmt)
Return true if no warnings should be emitted for statement STMT
.
— GIMPLE function: void
gimple_set_visited (
gimple stmt, bool visited_p)
Set the visited status on statement STMT
to VISITED_P
.
— GIMPLE function: bool
gimple_visited_p (
gimple stmt)
Return the visited status on statement STMT
.
— GIMPLE function: void
gimple_set_plf (
gimple stmt, enum plf_mask plf, bool val_p)
Set pass local flag PLF
on statement STMT
to VAL_P
.
— GIMPLE function: unsigned
int gimple_plf (
gimple stmt, enum plf_mask plf)
Return the value of pass local flag PLF
on statement STMT
.
— GIMPLE function: bool
gimple_has_ops (
gimple g)
Return true if statement G
has register or memory operands.
— GIMPLE function: bool
gimple_has_mem_ops (
gimple g)
Return true if statement G
has memory operands.
— GIMPLE function: unsigned
gimple_num_ops (
gimple g)
Return the number of operands for statement G
.
— GIMPLE function: tree
*gimple_ops (
gimple g)
Return the array of operands for statement G
.
— GIMPLE function: tree
gimple_op (
gimple g, unsigned i)
Return operand I
for statement G
.
— GIMPLE function: tree
*gimple_op_ptr (
gimple g, unsigned i)
Return a pointer to operand I
for statement G
.
— GIMPLE function: void
gimple_set_op (
gimple g, unsigned i, tree op)
Set operand I
of statement G
to OP
.
— GIMPLE function: bitmap
gimple_addresses_taken (
gimple stmt)
Return the set of symbols that have had their address taken by
STMT
.
— GIMPLE function: struct
def_optype_d *gimple_def_ops (
gimple g)
Return the set of DEF
operands for statement G
.
— GIMPLE function: void
gimple_set_def_ops (
gimple g, struct def_optype_d *def)
Set DEF
to be the set of DEF
operands for statement G
.
— GIMPLE function: struct
use_optype_d *gimple_use_ops (
gimple g)
Return the set of USE
operands for statement G
.
— GIMPLE function: void
gimple_set_use_ops (
gimple g, struct use_optype_d *use)
Set USE
to be the set of USE
operands for statement G
.
— GIMPLE function: struct
voptype_d *gimple_vuse_ops (
gimple g)
Return the set of VUSE
operands for statement G
.
— GIMPLE function: void
gimple_set_vuse_ops (
gimple g, struct voptype_d *ops)
Set OPS
to be the set of VUSE
operands for statement G
.
— GIMPLE function: struct
voptype_d *gimple_vdef_ops (
gimple g)
Return the set of VDEF
operands for statement G
.
— GIMPLE function: void
gimple_set_vdef_ops (
gimple g, struct voptype_d *ops)
Set OPS
to be the set of VDEF
operands for statement G
.
— GIMPLE function: bitmap
gimple_loaded_syms (
gimple g)
Return the set of symbols loaded by statement G
. Each element of
the set is the DECL_UID
of the corresponding symbol.
— GIMPLE function: bitmap
gimple_stored_syms (
gimple g)
Return the set of symbols stored by statement G
. Each element of
the set is the DECL_UID
of the corresponding symbol.
— GIMPLE function: bool
gimple_modified_p (
gimple g)
Return true if statement G
has operands and the modified field
has been set.
— GIMPLE function: bool
gimple_has_volatile_ops (
gimple stmt)
Return true if statement STMT
contains volatile operands.
— GIMPLE function: void
gimple_set_has_volatile_ops (
gimple stmt, bool volatilep)
Return true if statement STMT
contains volatile operands.
— GIMPLE function: void
update_stmt (
gimple s)
Mark statement S
as modified, and update it.
— GIMPLE function: void
update_stmt_if_modified (
gimple s)
Update statement S
if it has been marked modified.
— GIMPLE function: gimple
gimple_copy (
gimple stmt)
Return a deep copy of statement STMT
.