ipa-chkp.c: New.

gcc/

2014-11-05  Ilya Enkovich  <ilya.enkovich@intel.com>

	* ipa-chkp.c: New.
	* ipa-chkp.h: New.
	* tree-chkp.c: New.
	* tree-chkp.h: New.
	* tree-chkp-opt.c: New.
	* rtl-chkp.c: New.
	* rtl-chkp.h: New.
	* Makefile.in (OBJS): Add ipa-chkp.o, rtl-chkp.o, tree-chkp.o
	tree-chkp-opt.o.
	(GTFILES): Add tree-chkp.c.
	* mode-classes.def (MODE_POINTER_BOUNDS): New.
	* tree.def (POINTER_BOUNDS_TYPE): New.
	* genmodes.c (complete_mode): Support MODE_POINTER_BOUNDS.
	(POINTER_BOUNDS_MODE): New.
	(make_pointer_bounds_mode): New.
	* machmode.h (POINTER_BOUNDS_MODE_P): New.
	* stor-layout.c (int_mode_for_mode): Support MODE_POINTER_BOUNDS.
	(layout_type): Support POINTER_BOUNDS_TYPE.
	* tree-pretty-print.c (dump_generic_node): Support POINTER_BOUNDS_TYPE.
	* tree-core.h (tree_index): Add TI_POINTER_BOUNDS_TYPE.
	* tree.c (build_int_cst_wide): Support POINTER_BOUNDS_TYPE.
	(type_contains_placeholder_1): Likewise.
	(build_common_tree_nodes): Initialize
	pointer_bounds_type_node.
	* tree.h (POINTER_BOUNDS_TYPE_P): New.
	(pointer_bounds_type_node): New.
	(POINTER_BOUNDS_P): New.
	(BOUNDED_TYPE_P): New.
	(BOUNDED_P): New.
	(CALL_WITH_BOUNDS_P): New.
	* gimple.h (gf_mask): Add GF_CALL_WITH_BOUNDS.
	(gimple_call_with_bounds_p): New.
	(gimple_call_set_with_bounds): New.
	(gimple_return_retbnd): New.
	(gimple_return_set_retbnd): New
	* gimple.c (gimple_build_return): Increase number of ops
	for return statement.
	(gimple_build_call_from_tree): Propagate CALL_WITH_BOUNDS_P
	flag.
	* gimple-pretty-print.c (dump_gimple_return): Print second op.
	* rtl.h (CALL_EXPR_WITH_BOUNDS_P): New.
	* gimplify.c (gimplify_init_constructor): Avoid infinite
	loop during gimplification of bounds initializer.
	* calls.c: Include tree-chkp.h, rtl-chkp.h, bitmap.h.
	(special_function_p): Use original decl name when analyzing
	instrumentation clone.
	(arg_data): Add fields special_slot, pointer_arg and
	pointer_offset.
	(store_bounds): New.
	(emit_call_1): Propagate instrumentation flag for CALL.
	(initialize_argument_information): Compute pointer_arg,
	pointer_offset and special_slot for pointer bounds arguments.
	(finalize_must_preallocate): Preallocate when storing bounds
	in bounds table.
	(compute_argument_addresses): Skip pointer bounds.
	(expand_call): Store bounds into tables separately.  Return
	result joined with resulting bounds.
	* cfgexpand.c: Include tree-chkp.h, rtl-chkp.h.
	(expand_call_stmt): Propagate bounds flag for CALL_EXPR.
	(expand_return): Add returned bounds arg.  Handle returned bounds.
	(expand_gimple_stmt_1): Adjust to new expand_return signature.
	(gimple_expand_cfg): Reset rtx bounds map.
	* expr.c: Include tree-chkp.h, rtl-chkp.h.
	(expand_assignment): Handle returned bounds.
	(store_expr_with_bounds): New.  Replaces store_expr with new bounds
	target argument.  Handle bounds returned by calls.
	(store_expr): Now wraps store_expr_with_bounds.
	* expr.h (store_expr_with_bounds): New.
	* function.c: Include tree-chkp.h, rtl-chkp.h.
	(bounds_parm_data): New.
	(use_register_for_decl): Do not registerize decls used for bounds
	stores and loads.
	(assign_parms_augmented_arg_list): Add bounds of the result
	structure pointer as the second argument.
	(assign_parm_find_entry_rtl): Mark bounds are never passed on
	the stack.
	(assign_parm_is_stack_parm): Likewise.
	(assign_parm_load_bounds): New.
	(assign_bounds): New.
	(assign_parms): Load bounds and determine a location for
	returned bounds.
	(diddle_return_value_1): New.
	(diddle_return_value): Handle returned bounds.
	* function.h (rtl_data): Add field for returned bounds.
	* varasm.c: Include tree-chkp.h.
	(output_constant): Support POINTER_BOUNDS_TYPE.
	(output_constant_pool_2): Support MODE_POINTER_BOUNDS.
	(ultimate_transparent_alias_target): Move up.
	(make_decl_rtl): For instrumented function use
	name of the original decl.
	(assemble_start_function): Mark function as global
	in case it is instrumentation clone of the global
	function.
	(do_assemble_alias): Follow transparent alias chain
	for identifier.  Check if original alias is public.
	(maybe_assemble_visibility): Use visibility of the
	original function for instrumented version.
	(default_unique_section): Likewise.
	* emit-rtl.c (immed_double_const): Support MODE_POINTER_BOUNDS.
	(init_emit_once): Build pointer bounds zero constants.
	* explow.c (trunc_int_for_mode): Support MODE_POINTER_BOUNDS.
	* target.def (builtin_chkp_function): New.
	(chkp_bound_type): New.
	(chkp_bound_mode): New.
	(chkp_make_bounds_constant): New.
	(chkp_initialize_bounds): New.
	(load_bounds_for_arg): New.
	(store_bounds_for_arg): New.
	(load_returned_bounds): New.
	(store_returned_bounds): New.
	(chkp_function_value_bounds): New.
	(setup_incoming_vararg_bounds): New.
	(function_arg): Update hook description with new possible return
	value CONST_INT.
	* targhooks.h (default_load_bounds_for_arg): New.
	(default_store_bounds_for_arg): New.
	(default_load_returned_bounds): New.
	(default_store_returned_bounds): New.
	(default_chkp_bound_type): New.
	(default_chkp_bound_mode): New.
	(default_builtin_chkp_function): New.
	(default_chkp_function_value_bounds): New.
	(default_chkp_make_bounds_constant): New.
	(default_chkp_initialize_bounds): New.
	(default_setup_incoming_vararg_bounds): New.
	* targhooks.c (default_load_bounds_for_arg): New.
	(default_store_bounds_for_arg): New.
	(default_load_returned_bounds): New.
	(default_store_returned_bounds): New.
	(default_chkp_bound_type): New.
	(default_chkp_bound_mode); New.
	(default_builtin_chkp_function): New.
	(default_chkp_function_value_bounds): New.
	(default_chkp_make_bounds_constant): New.
	(default_chkp_initialize_bounds): New.
	(default_setup_incoming_vararg_bounds): New.
	* builtin-types.def (BT_BND): New.
	(BT_FN_PTR_CONST_PTR): New.
	(BT_FN_CONST_PTR_CONST_PTR): New.
	(BT_FN_BND_CONST_PTR): New.
	(BT_FN_CONST_PTR_BND): New.
	(BT_FN_PTR_CONST_PTR_SIZE): New.
	(BT_FN_PTR_CONST_PTR_CONST_PTR): New.
	(BT_FN_VOID_PTRPTR_CONST_PTR): New.
	(BT_FN_VOID_CONST_PTR_SIZE): New.
	(BT_FN_VOID_PTR_BND): New.
	(BT_FN_CONST_PTR_CONST_PTR_CONST_PTR): New.
	(BT_FN_BND_CONST_PTR_SIZE): New.
	(BT_FN_PTR_CONST_PTR_CONST_PTR_SIZE): New.
	(BT_FN_VOID_CONST_PTR_BND_CONST_PTR): New.
	* chkp-builtins.def: New.
	* builtins.def: include chkp-builtins.def.
	(DEF_CHKP_BUILTIN): New.
	* builtins.c: Include tree-chkp.h and rtl-chkp.h.
	(expand_builtin): Support BUILT_IN_CHKP_INIT_PTR_BOUNDS,
	BUILT_IN_CHKP_NULL_PTR_BOUNDS, BUILT_IN_CHKP_COPY_PTR_BOUNDS,
	BUILT_IN_CHKP_CHECK_PTR_LBOUNDS, BUILT_IN_CHKP_CHECK_PTR_UBOUNDS,
	BUILT_IN_CHKP_CHECK_PTR_BOUNDS, BUILT_IN_CHKP_SET_PTR_BOUNDS,
	BUILT_IN_CHKP_NARROW_PTR_BOUNDS, BUILT_IN_CHKP_STORE_PTR_BOUNDS,
	BUILT_IN_CHKP_GET_PTR_LBOUND, BUILT_IN_CHKP_GET_PTR_UBOUND,
	BUILT_IN_CHKP_BNDMK, BUILT_IN_CHKP_BNDSTX, BUILT_IN_CHKP_BNDCL,
	BUILT_IN_CHKP_BNDCU, BUILT_IN_CHKP_BNDLDX, BUILT_IN_CHKP_BNDRET,
	BUILT_IN_CHKP_INTERSECT, BUILT_IN_CHKP_NARROW,
	BUILT_IN_CHKP_EXTRACT_LOWER, BUILT_IN_CHKP_EXTRACT_UPPER.
	(std_expand_builtin_va_start): Init bounds for va_list.
	* cppbuiltin.c (define_builtin_macros_for_compilation_flags): Add
	__CHKP__ macro when Pointer Bounds Checker is on.
	* params.def (PARAM_CHKP_MAX_CTOR_SIZE): New.
	* passes.def (pass_ipa_chkp_versioning): New.
	(pass_early_local_passes): Renamed to pass_build_ssa_passes.
	(pass_fixup_cfg): Moved to pass_chkp_instrumentation_passes.
	(pass_chkp_instrumentation_passes): New.
	(pass_ipa_chkp_produce_thunks): New.
	(pass_local_optimization_passes): New.
	(pass_chkp_opt): New.
	* tree-pass.h (make_pass_ipa_chkp_versioning): New.
	(make_pass_ipa_chkp_produce_thunks): New.
	(make_pass_chkp): New.
	(make_pass_chkp_opt): New.
	(make_pass_early_local_passes): Renamed to ...
	(make_pass_build_ssa_passes): This.
	(make_pass_chkp_instrumentation_passes): New.
	(make_pass_local_optimization_passes): New.
	* passes.c (pass_manager::execute_early_local_passes): Execute
	early passes in three steps.
	(execute_all_early_local_passes): Renamed to ...
	(execute_build_ssa_passes): This.
	(pass_data_early_local_passes): Renamed to ...
	(pass_data_build_ssa_passes): This.
	(pass_early_local_passes): Renamed to ...
	(pass_build_ssa_passes): This.
	(pass_data_chkp_instrumentation_passes): New.
	(pass_chkp_instrumentation_passes): New.
	(pass_data_local_optimization_passes): New.
	(pass_local_optimization_passes): New.
	(make_pass_early_local_passes): Renamed to ...
	(make_pass_build_ssa_passes): This.
	(make_pass_chkp_instrumentation_passes): New.
	(make_pass_local_optimization_passes): New.
	* c-family/c.opt (fcheck-pointer-bounds): New.
	(fchkp-check-incomplete-type): New.
	(fchkp-zero-input-bounds-for-main): New.
	(fchkp-first-field-has-own-bounds): New.
	(fchkp-narrow-bounds): New.
	(fchkp-narrow-to-innermost-array): New.
	(fchkp-optimize): New.
	(fchkp-use-fast-string-functions): New.
	(fchkp-use-nochk-string-functions): New.
	(fchkp-use-static-bounds): New.
	(fchkp-use-static-const-bounds): New.
	(fchkp-treat-zero-dynamic-size-as-infinite): New.
	(fchkp-check-read): New.
	(fchkp-check-write): New.
	(fchkp-store-bounds): New.
	(fchkp-instrument-calls): New.
	(fchkp-instrument-marked-only): New.
	(Wchkp): New.
	* c-family/c-common.c (handle_bnd_variable_size_attribute): New.
	(handle_bnd_legacy): New.
	(handle_bnd_instrument): New.
	(c_common_attribute_table): Add bnd_variable_size, bnd_legacy
	and bnd_instrument.  Fix documentation.
	(c_common_format_attribute_table): Likewsie.
	* toplev.c: include tree-chkp.h.
	(process_options): Check Pointer Bounds Checker is supported.
	(compile_file): Add chkp_finish_file call.
	* ipa-cp.c (initialize_node_lattices): Use cgraph_local_p
	to handle instrumentation clones properly.
	(propagate_constants_accross_call): Do not propagate
	through instrumentation thunks.
	* ipa-pure-const.c (propagate_pure_const): Support
	IPA_REF_CHKP.
	* ipa-inline.c (early_inliner): Check edge has summary allocated.
	* ipa-split.c: Include tree-chkp.h.
	(find_retbnd): New.
	(split_part_set_ssa_name_p): New.
	(consider_split): Do not split retbnd and retval
	producers.
	(insert_bndret_call_after): new.
	(split_function): Propagate Pointer Bounds Checker
	instrumentation marks and handle returned bounds.
	* tree-ssa-sccvn.h (vn_reference_op_struct): Transform opcode
	into bit field and add with_bounds field.
	* tree-ssa-sccvn.c (copy_reference_ops_from_call): Set
	with_bounds field for instrumented calls.
	* tree-ssa-pre.c (create_component_ref_by_pieces_1): Restore
	CALL_WITH_BOUNDS_P flag for calls.
	* tree-ssa-ccp.c: Include tree-chkp.h.
	(insert_clobber_before_stack_restore): Handle
	BUILT_IN_CHKP_BNDRET calls.
	* tree-ssa-dce.c: Include tree-chkp.h.
	(propagate_necessity): For free call fed by alloc check
	bounds are also provided by the same alloc.
	(eliminate_unnecessary_stmts): Handle BUILT_IN_CHKP_BNDRET
	used by free calls.
	* tree-inline.c: Include tree-chkp.h.
	(declare_return_variable): Add arg holding
	returned bounds slot.  Create and initialize returned bounds var.
	(remap_gimple_stmt): Handle returned bounds.
	Return sequence of statements instead of a single statement.
	(insert_init_stmt): Add declaration.
	(remap_gimple_seq): Adjust to new remap_gimple_stmt signature.
	(copy_bb): Adjust to changed return type of remap_gimple_stmt.
	Properly handle bounds in va_arg_pack and va_arg_pack_len.
	(expand_call_inline): Handle returned bounds.  Add bounds copy
	for generated mem to mem assignments.
	* tree-inline.h (copy_body_data): Add fields retbnd and
	assign_stmts.
	* value-prof.c: Include tree-chkp.h.
	(gimple_ic): Support returned bounds.
	* ipa.c (cgraph_build_static_cdtor_1): Support contructors
	with "chkp ctor" and "bnd_legacy" attributes.
	(symtab_remove_unreachable_nodes): Keep initial values for
	pointer bounds to be used for checks eliminations.
	(process_references): Handle IPA_REF_CHKP.
	(walk_polymorphic_call_targets): Likewise.
	* ipa-visibility.c (cgraph_externally_visible_p): Mark
	instrumented 'main' as externally visible.
	(function_and_variable_visibility): Filter instrumentation
	thunks.
	* cgraph.h (cgraph_thunk_info): Add add_pointer_bounds_args
	field.
	(cgraph_node): Add instrumented_version, orig_decl and
	instrumentation_clone fields.
	(symtab_node::get_alias_target): Allow IPA_REF_CHKP reference.
	(varpool_node): Add need_bounds_init field.
	(cgraph_local_p): New.
	* cgraph.c: Include tree-chkp.h.
	(cgraph_node::remove): Fix instrumented_version
	of the referenced node if any.
	(cgraph_node::dump): Dump instrumentation_clone and
	instrumented_version fields.
	(cgraph_node::verify_node): Check correctness of IPA_REF_CHKP
	references and instrumentation thunks.
	(cgraph_can_remove_if_no_direct_calls_and_refs_p): Keep
	all not instrumented instrumentation clones alive.
	(cgraph_redirect_edge_call_stmt_to_callee): Support
	returned bounds.
	* cgraphbuild.c (rebuild_cgraph_edges): Rebuild IPA_REF_CHKP
	reference.
	(cgraph_rebuild_references): Likewise.
	* cgraphunit.c: Include tree-chkp.h.
	(assemble_thunks_and_aliases): Skip thunks calling instrumneted
	function version.
	(varpool_finalize_decl): Register statically initialized decls
	in Pointer Bounds Checker.
	(walk_polymorphic_call_targets): Do not mark generated call to
	__builtin_unreachable as with_bounds.
	(output_weakrefs): If there are both instrumented and original
	versions, output only one of them.
	(cgraph_node::expand_thunk): Set with_bounds flag
	for created call statement.
	* ipa-ref.h (ipa_ref_use): Add IPA_REF_CHKP.
	(ipa_ref): increase size of use field.
	* symtab.c (ipa_ref_use_name): Add element for IPA_REF_CHKP.
	* varpool.c (dump_varpool_node): Dump need_bounds_init field.
	(ctor_for_folding): Do not fold constant bounds vars.
	* lto-streamer.h (LTO_minor_version): Change minor version from
	0 to 1.
	* lto-cgraph.c (compute_ltrans_boundary): Keep initial values for
	pointer bounds.
	(lto_output_node): Output instrumentation_clone,
	thunk.add_pointer_bounds_args and orig_decl field.
	(lto_output_ref): Adjust to new ipa_ref::use field size.
	(input_overwrite_node): Read instrumentation_clone field.
	(input_node): Read thunk.add_pointer_bounds_args and orig_decl
	fields.
	(input_ref): Adjust to new ipa_ref::use field size.
	(input_cgraph_1): Compute instrumented_version fields and restore
	IDENTIFIER_TRANSPARENT_ALIAS chains.
	(lto_output_varpool_node): Output
	need_bounds_init value.
	(input_varpool_node): Read need_bounds_init value.
	* lto-partition.c (add_symbol_to_partition_1): Keep original
	and instrumented versions together.
	(privatize_symbol_name): Restore transparent alias chain if required.
	(add_references_to_partition): Add references to pointer bounds vars.
	* dbxout.c (dbxout_type): Ignore POINTER_BOUNDS_TYPE.
	* dwarf2out.c (gen_subprogram_die): Ignore bound args.
	(gen_type_die_with_usage): Skip pointer bounds.
	(dwarf2out_global_decl): Likewise.
	(is_base_type): Support POINTER_BOUNDS_TYPE.
	(gen_formal_types_die): Skip pointer bounds.
	(gen_decl_die): Likewise.
	* var-tracking.c (vt_add_function_parameters): Skip
	bounds parameters.
	* ipa-icf.c (sem_function::merge): Do not merge when instrumentation
	thunk still exists.
	(sem_variable::merge): Reset need_bounds_init flag.
	* doc/extend.texi: Document Pointer Bounds Checker built-in functions
	and attributes.
	* doc/tm.texi.in (TARGET_LOAD_BOUNDS_FOR_ARG): New.
	(TARGET_STORE_BOUNDS_FOR_ARG): New.
	(TARGET_LOAD_RETURNED_BOUNDS): New.
	(TARGET_STORE_RETURNED_BOUNDS): New.
	(TARGET_CHKP_FUNCTION_VALUE_BOUNDS): New.
	(TARGET_SETUP_INCOMING_VARARG_BOUNDS): New.
	(TARGET_BUILTIN_CHKP_FUNCTION): New.
	(TARGET_CHKP_BOUND_TYPE): New.
	(TARGET_CHKP_BOUND_MODE): New.
	(TARGET_CHKP_MAKE_BOUNDS_CONSTANT): New.
	(TARGET_CHKP_INITIALIZE_BOUNDS): New.
	* doc/tm.texi: Regenerated.
	* doc/rtl.texi (MODE_POINTER_BOUNDS): New.
	(BND32mode): New.
	(BND64mode): New.
	* doc/invoke.texi (-mmpx): New.
	(-mno-mpx): New.
	(chkp-max-ctor-size): New.
	* config/i386/constraints.md (w): New.
	(Ti): New.
	(Tb): New.
	* config/i386/i386-c.c (ix86_target_macros_internal): Add __MPX__.
	* config/i386/i386-modes.def (BND32): New.
	(BND64): New.
	* config/i386/i386-protos.h (ix86_bnd_prefixed_insn_p): New.
	* config/i386/i386.c: Include tree-chkp.h, rtl-chkp.h, tree-iterator.h.
	(regclass_map): Add bound registers.
	(dbx_register_map): Likewise.
	(dbx64_register_map): Likewise.
	(svr4_dbx_register_map): Likewise.
	(isa_opts): Add -mmpx.
	(PTA_MPX): New.
	(ix86_option_override_internal): Support MPX ISA.
	(ix86_conditional_register_usage): Support bound registers.
	(ix86_code_end): Add MPX bnd prefix.
	(output_set_got): Likewise.
	(print_reg): Avoid prefixes for bound registers.
	(ix86_print_operand): Add '!' (MPX bnd) print prefix support.
	(ix86_print_operand_punct_valid_p): Likewise.
	(ix86_print_operand_address): Support UNSPEC_BNDMK_ADDR and
	UNSPEC_BNDLDX_ADDR.
	(ix86_output_call_insn): Add MPX bnd prefix to branch instructions.
	(ix86_class_likely_spilled_p): Add bound regs support.
	(ix86_hard_regno_mode_ok): Likewise.
	(x86_order_regs_for_local_alloc): Likewise.
	(ix86_bnd_prefixed_insn_p): New.
	(ix86_builtins): Add
	IX86_BUILTIN_BNDMK, IX86_BUILTIN_BNDSTX,
	IX86_BUILTIN_BNDLDX, IX86_BUILTIN_BNDCL,
	IX86_BUILTIN_BNDCU, IX86_BUILTIN_BNDRET,
	IX86_BUILTIN_BNDNARROW, IX86_BUILTIN_BNDINT,
	IX86_BUILTIN_SIZEOF, IX86_BUILTIN_BNDLOWER,
	IX86_BUILTIN_BNDUPPER.
	(builtin_isa): Add leaf_p and nothrow_p fields.
	(def_builtin): Initialize leaf_p and nothrow_p.
	(ix86_add_new_builtins): Handle leaf_p and nothrow_p
	flags.
	(bdesc_mpx): New.
	(bdesc_mpx_const): New.
	(ix86_init_mpx_builtins): New.
	(ix86_init_builtins): Call ix86_init_mpx_builtins.
	(ix86_emit_cmove): New.
	(ix86_emit_move_max): New.
	(ix86_expand_builtin): Expand IX86_BUILTIN_BNDMK,
	IX86_BUILTIN_BNDSTX, IX86_BUILTIN_BNDLDX,
	IX86_BUILTIN_BNDCL, IX86_BUILTIN_BNDCU,
	IX86_BUILTIN_BNDRET, IX86_BUILTIN_BNDNARROW,
	IX86_BUILTIN_BNDINT, IX86_BUILTIN_SIZEOF,
	IX86_BUILTIN_BNDLOWER, IX86_BUILTIN_BNDUPPER.
	(ix86_function_value_bounds): New.
	(ix86_builtin_mpx_function): New.
	(ix86_get_arg_address_for_bt): New.
	(ix86_load_bounds): New.
	(ix86_store_bounds): New.
	(ix86_load_returned_bounds): New.
	(ix86_store_returned_bounds): New.
	(ix86_mpx_bound_mode): New.
	(ix86_make_bounds_constant): New.
	(ix86_initialize_bounds):
	(TARGET_LOAD_BOUNDS_FOR_ARG): New.
	(TARGET_STORE_BOUNDS_FOR_ARG): New.
	(TARGET_LOAD_RETURNED_BOUNDS): New.
	(TARGET_STORE_RETURNED_BOUNDS): New.
	(TARGET_CHKP_BOUND_MODE): New.
	(TARGET_BUILTIN_CHKP_FUNCTION): New.
	(TARGET_CHKP_FUNCTION_VALUE_BOUNDS): New.
	(TARGET_CHKP_MAKE_BOUNDS_CONSTANT): New.
	(TARGET_CHKP_INITIALIZE_BOUNDS): New.
	(ix86_option_override_internal): Do not
	support x32 with MPX.
	(init_cumulative_args): Init stdarg, bnd_regno, bnds_in_bt
	and force_bnd_pass.
	(function_arg_advance_32): Return number of used integer
	registers.
	(function_arg_advance_64): Likewise.
	(function_arg_advance_ms_64): Likewise.
	(ix86_function_arg_advance): Handle pointer bounds.
	(ix86_function_arg): Likewise.
	(ix86_function_value_regno_p): Mark fisrt bounds registers as
	possible function value.
	(ix86_function_value_1): Handle pointer bounds type/mode
	(ix86_return_in_memory): Likewise.
	(ix86_print_operand): Analyse insn to decide abounf "bnd" prefix.
	(ix86_expand_call): Generate returned bounds.
	(ix86_setup_incoming_vararg_bounds): New.
	(ix86_va_start): Initialize bounds for pointers in va_list.
	(TARGET_SETUP_INCOMING_VARARG_BOUNDS): New.
	* config/i386/i386.h (TARGET_MPX): New.
	(TARGET_MPX_P): New.
	(FIRST_PSEUDO_REGISTER): Fix to new value.
	(FIXED_REGISTERS): Add bound registers.
	(CALL_USED_REGISTERS): Likewise.
	(REG_ALLOC_ORDER): Likewise.
	(HARD_REGNO_NREGS): Likewise.
	(VALID_BND_REG_MODE): New.
	(FIRST_BND_REG): New.
	(LAST_BND_REG): New.
	(reg_class): Add BND_REGS.
	(REG_CLASS_NAMES): Likewise.
	(REG_CLASS_CONTENTS): Likewise.
	(BND_REGNO_P): New.
	(ANY_BND_REG_P): New.
	(BNDmode): New.
	(HI_REGISTER_NAMES): Add bound registers.
	(ix86_args): Add bnd_regno, bnds_in_bt,	force_bnd_pass and
	stdarg fields.
	* config/i386/i386.md (UNSPEC_BNDMK): New.
	(UNSPEC_BNDMK_ADDR): New.
	(UNSPEC_BNDSTX): New.
	(UNSPEC_BNDLDX): New.
	(UNSPEC_BNDLDX_ADDR): New.
	(UNSPEC_BNDCL): New.
	(UNSPEC_BNDCU): New.
	(UNSPEC_BNDCN): New.
	(UNSPEC_MPX_FENCE): New.
	(UNSPEC_SIZEOF): New.
	(BND0_REG): New.
	(BND1_REG): New.
	(type): Add mpxmov, mpxmk, mpxchk, mpxld, mpxst.
	(length_immediate): Support mpxmov, mpxmk, mpxchk, mpxld, mpxst.
	(prefix_rep): Check for bnd prefix.
	(prefix_0f): Support mpxmov, mpxmk, mpxchk, mpxld, mpxst.
	(length_nobnd): New.
	(length): Use length_nobnd when specified.
	(memory): Support mpxmov, mpxmk, mpxchk, mpxld, mpxst.
	(BND): New.
	(bnd_ptr): New.
	(BNDCHECK): New.
	(bndcheck): New.
	(*jcc_1): Add MPX bnd prefix.
	(*jcc_2): Likewise.
	(jump): Likewise.
	(*indirect_jump): Likewise.
	(*tablejump_1): Likewise.
	(simple_return_internal): Likewise.
	(simple_return_internal_long): Likewise.
	(simple_return_pop_internal): Likewise.
	(simple_return_indirect_internal): Likewise.
	(<mode>_mk): New.
	(*<mode>_mk): New.
	(mov<mode>): New.
	(*mov<mode>_internal_mpx): New.
	(<mode>_<bndcheck>): New.
	(*<mode>_<bndcheck>): New.
	(<mode>_ldx): New.
	(*<mode>_ldx): New.
	(<mode>_stx): New.
	(*<mode>_stx): New.
	move_size_reloc_<mode>): New.
	* config/i386/predicates.md (address_mpx_no_base_operand): New.
	(address_mpx_no_index_operand): New.
	(bnd_mem_operator): New.
	(symbol_operand): New.
	(x86_64_immediate_size_operand): New.
	* config/i386/i386.opt (mmpx): New.
	* config/i386/i386-builtin-types.def (BND): New.
	(ULONG): New.
	(BND_FTYPE_PCVOID_ULONG): New.
	(VOID_FTYPE_BND_PCVOID): New.
	(VOID_FTYPE_PCVOID_PCVOID_BND): New.
	(BND_FTYPE_PCVOID_PCVOID): New.
	(BND_FTYPE_PCVOID): New.
	(BND_FTYPE_BND_BND): New.
	(PVOID_FTYPE_PVOID_PVOID_ULONG): New.
	(PVOID_FTYPE_PCVOID_BND_ULONG): New.
	(ULONG_FTYPE_VOID): New.
	(PVOID_FTYPE_BND): New.

gcc/testsuite/

2014-11-05  Ilya Enkovich  <ilya.enkovich@intel.com>

	* gcc.target/i386/chkp-builtins-1.c: New.
	* gcc.target/i386/chkp-builtins-2.c: New.
	* gcc.target/i386/chkp-builtins-3.c: New.
	* gcc.target/i386/chkp-builtins-4.c: New.
	* gcc.target/i386/chkp-remove-bndint-1.c: New.
	* gcc.target/i386/chkp-remove-bndint-2.c: New.
	* gcc.target/i386/chkp-const-check-1.c: New.
	* gcc.target/i386/chkp-const-check-2.c: New.
	* gcc.target/i386/chkp-lifetime-1.c: New.
	* gcc.dg/pr37858.c: Replace early_local_cleanups pass name
	with build_ssa_passes.

From-SVN: r217125

1 files changed, 10 insertions, 1 deletions

diff --git a/gcc/tree.def b/gcc/tree.def
index ff6be21..91359a2 100644
--- a/gcc/tree.def
+++ b/gcc/tree.def
@@ -31,7 +31,11 @@ along with GCC; see the file COPYING3.  If not see
    These tree codes have been sorted so that the macros in tree.h that
    check for various tree codes are optimized into range checks.  This
    gives a measurable performance improvement.  When adding a new
-   code, consider its placement in relation to the other codes.  */
+   code, consider its placement in relation to the other codes.
+
+   When adding a new tree code which might appear as GIMPLE_ASSIGN RHS
+   code, proper handler in chkp_compute_bounds_for_assignment may
+   be required.  */
 
 /* Any erroneous construct is parsed into a node of this type.
    This type of node is accepted without complaint in all contexts
@@ -232,6 +236,11 @@ DEFTREECODE (QUAL_UNION_TYPE, "qual_union_type", tcc_type, 0)
 /* The void type in C */
 DEFTREECODE (VOID_TYPE, "void_type", tcc_type, 0)
 
+/* Type to hold bounds for a pointer.
+   Has TYPE_PRECISION component to specify number of bits used
+   by this type.  */
+DEFTREECODE (POINTER_BOUNDS_TYPE, "pointer_bounds_type", tcc_type, 0)
+
 /* Type of functions.  Special fields:
    TREE_TYPE		    type of value returned.
    TYPE_ARG_TYPES      list of types of arguments expected.