tree-ssa-address.h File Reference

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Data Structures
struct	mem_address

Functions
rtx	addr_for_mem_ref (struct mem_address *, addr_space_t, bool)
rtx	addr_for_mem_ref (tree exp, addr_space_t as, bool really_expand)
void	get_address_description (tree, struct mem_address *)
tree	tree_mem_ref_addr (tree, tree)
bool	valid_mem_ref_p (machine_mode, addr_space_t, struct mem_address *, code_helper=ERROR_MARK)
void	move_fixed_address_to_symbol (struct mem_address *, class aff_tree *)
tree	create_mem_ref (gimple_stmt_iterator *, tree, class aff_tree *, tree, tree, tree, bool)
void	copy_ref_info (tree, tree)
tree	maybe_fold_tmr (tree)
unsigned int	preferred_mem_scale_factor (tree base, machine_mode mem_mode, bool speed)

Function Documentation

addr_for_mem_ref() [1/2]

rtx addr_for_mem_ref ( struct mem_address * addr, addr_space_t as, bool really_expand )

extern

Returns address for TARGET_MEM_REF with parameters given by ADDR
in address space AS.
If REALLY_EXPAND is false, just make fake registers instead
of really expanding the operands, and perform the expansion in-place
by using one of the "templates".   

References mem_address::base, const0_rtx, convert_memory_address, expand_expr(), EXPAND_NORMAL, poly_int< N, C >::from(), gcc_assert, gen_addr_rtx(), gen_raw_REG(), GET_CODE, ggc_strdup, immed_wide_int_const(), mem_address::index, integer_onep(), integer_zerop(), LAST_VIRTUAL_REGISTER, mem_addr_template_list, NULL, NULL_RTX, mem_addr_template::off_p, mem_address::offset, mem_addr_template::ref, SIGNED, simplify_gen_binary(), mem_address::step, mem_addr_template::step_p, mem_address::symbol, targetm, TEMPL_IDX, wi::to_poly_wide(), wi::to_wide(), vec_safe_grow_cleared(), and vec_safe_length().

Referenced by addr_for_mem_ref(), expand_expr_addr_expr_1(), expand_expr_real_1(), get_address_cost(), preferred_mem_scale_factor(), and valid_mem_ref_p().

addr_for_mem_ref() [2/2]

rtx addr_for_mem_ref ( tree exp, addr_space_t as, bool really_expand )

extern

implement addr_for_mem_ref() directly from a tree, which avoids exporting
the mem_address structure.   

References addr_for_mem_ref(), exp(), and get_address_description().

copy_ref_info()

void copy_ref_info ( tree new_ref, tree old_ref )

extern

Copies the reference information from OLD_REF to NEW_REF, where
NEW_REF should be either a MEM_REF or a TARGET_MEM_REF.   

References mem_address::base, build_aligned_type(), duplicate_ssa_name_ptr_info(), gcc_assert, get_base_address(), get_object_alignment(), get_ptr_info(), MR_DEPENDENCE_BASE, MR_DEPENDENCE_CLIQUE, NULL_TREE, ptr_info_def::pt, pt_solution_set_var(), reset_flow_sensitive_info(), SSA_NAME_PTR_INFO, TREE_CODE, TREE_OPERAND, TREE_SIDE_EFFECTS, TREE_THIS_VOLATILE, TREE_TYPE, and VAR_P.

Referenced by predicate_load_or_store(), replace_ref(), and rewrite_use_address().

create_mem_ref()

tree create_mem_ref	(	gimple_stmt_iterator *	gsi,
		tree	type,
		aff_tree *	addr,
		tree	alias_ptr_type,
		tree	iv_cand,
		tree	base_hint,
		bool	speed )

Creates and returns a TARGET_MEM_REF for address ADDR.  If necessary
computations are emitted in front of GSI.  TYPE is the mode
of created memory reference. IV_CAND is the selected iv candidate in ADDR,
and BASE_HINT is non NULL if IV_CAND comes from a base address
object.   

References add_offset_to_base(), addr_to_parts(), mem_address::base, create_mem_ref_raw(), fold_build2, fold_build_pointer_plus, force_gimple_operand_gsi(), force_gimple_operand_gsi_1(), gcc_assert, gcc_unreachable, gimplify_mem_ref_parts(), GSI_SAME_STMT, mem_address::index, integer_onep(), integer_zerop(), is_gimple_mem_ref_addr(), is_gimple_val(), mem_ref_valid_without_offset_p(), NULL_TREE, mem_address::offset, sizetype, mem_address::step, mem_address::symbol, TREE_TYPE, unshare_expr(), and useless_type_conversion_p().

Referenced by rewrite_use_address().

get_address_description()

void get_address_description ( tree op, struct mem_address * addr )

extern

Copies components of the address from OP to ADDR.   

References mem_address::base, gcc_assert, mem_address::index, integer_zerop(), NULL_TREE, mem_address::offset, mem_address::step, mem_address::symbol, TMR_BASE, TMR_INDEX, TMR_INDEX2, TMR_OFFSET, TMR_STEP, and TREE_CODE.

Referenced by addr_for_mem_ref(), and maybe_fold_tmr().

maybe_fold_tmr()

tree maybe_fold_tmr

(

tree

ref

)

Move constants in target_mem_ref REF to offset.  Returns the new target
mem ref if anything changes, NULL_TREE otherwise.   

References mem_address::base, build_fold_addr_expr, changed, create_mem_ref_raw(), fold_binary_to_constant(), get_addr_base_and_unit_offset(), get_address_description(), handled_component_p(), mem_address::index, int_const_binop(), integer_zerop(), NULL_TREE, mem_address::offset, offset, size_int, sizetype, mem_address::step, mem_address::symbol, TREE_CODE, TREE_OPERAND, TREE_SIDE_EFFECTS, TREE_THIS_VOLATILE, and TREE_TYPE.

Referenced by maybe_canonicalize_mem_ref_addr().

move_fixed_address_to_symbol()

void move_fixed_address_to_symbol ( struct mem_address * parts, aff_tree * addr )

extern

If ADDR contains an address of object that is a link time constant,
move it to PARTS->symbol.   

References aff_combination_remove_elt(), aff_comb_elt::coef, aff_tree::elts, fixed_address_object_p(), i, aff_tree::n, NULL_TREE, mem_address::symbol, TREE_CODE, TREE_OPERAND, and aff_comb_elt::val.

Referenced by addr_to_parts(), and get_address_cost().

preferred_mem_scale_factor()

unsigned int preferred_mem_scale_factor ( tree base, machine_mode mem_mode, bool speed )

extern

Return the preferred index scale factor for accessing memory of mode
MEM_MODE in the address space of pointer BASE.  Assume that we're
optimizing for speed if SPEED is true and for size otherwise.   

References addr_for_mem_ref(), address_cost(), mem_address::base, GET_MODE_UNIT_SIZE, mem_address::index, integer_one_node, sizetype, mem_address::step, TREE_TYPE, TYPE_ADDR_SPACE, and wide_int_to_tree().

Referenced by add_iv_candidate_for_use().

tree_mem_ref_addr()

tree tree_mem_ref_addr ( tree type, tree mem_ref )

extern

Returns address of MEM_REF in TYPE.   

References fold_build2, fold_build_pointer_plus, fold_convert, integer_zerop(), NULL_TREE, offset, mem_address::step, TMR_BASE, TMR_INDEX, TMR_INDEX2, TMR_OFFSET, TMR_STEP, and TREE_TYPE.

Referenced by expand_debug_expr(), find_interesting_uses_address(), and gimplify_addr().

valid_mem_ref_p()

bool valid_mem_ref_p ( machine_mode mode, addr_space_t as, struct mem_address * addr, code_helper ch )

extern

Returns true if a memory reference in MODE and with parameters given by
ADDR is valid on the current target.   

References addr_for_mem_ref(), and memory_address_addr_space_p().

Referenced by create_mem_ref_raw(), get_address_cost(), mem_ref_valid_without_offset_p(), and valid_mem_ref_cand_p().