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* * rtl.h (loc_mentioned_in_p): Declare.amylaar2000-05-251-4/+15
| | | | | | | | | | | * reload.c (loc_mentioned_in_p): Moved from here... * rtlanal.c (loc_mentioned_in_p): to here. No longer static. Fix loop increment for 'E' handling. * loop.c (strength_reduce): When doing biv->giv conversion, take multi-insn biv increments into account. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34150 138bc75d-0d04-0410-961f-82ee72b054a4
* * cse.c (cse_basic_block): Only call find_reg_note if REG_NOTES not 0.kenner2000-05-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * reload.c (find_equiv_reg): Likewise. * alias.c (init_alias_analysis): Likewise. Only call prologue_epilogue_contains on insns. * basic-block.h (REG_SET_TO_HARD_REG_SET): Call new function. * bb-reorder.c (hard-reg-set.h): Include earlier. * haifa-sched.c (hard-reg-set.h): Likewise. * ifcvt.c (hard-reg-set.h): Likewise. * local-alloc.c (hard-reg-set.h): Likewise. * loop.c (hard-reg-set.h): Likewise. * predict.c (hard-reg-set.h): Likewise. * regrename.c (hard-reg-set.h): Likewise. * flow.c (hard-reg-set.h): Likewise. (reg_set_to_hard_reg_set): New function. * bitmap.c (regs.h, basic-block.h): No longer include. (bitmap.h): Now include. * conflict.c (hard-reg-set.h): Include. * profile.c (hard-reg-set.h): Likewise. * print-rtl.c (hard-reg-set.h): Likewise. * sbitmap.c (hard-reg-set.h): Likewise. * toplev.c (hard-reg-set.h): Likewise. * unroll.c (hard-reg-set.h, basic-block.h): Likewise. * hard-reg-set.h (reg_names): Now constant. * regs.h (reg_names): Likewise. * regclass.c (reg_names): Likewise. * loop.h (basic-block.h): No longer include. (bitmap.h): Now include. * reload1.c (order_regs_for_reload): Avoid loop over reg sets. * Makefile.in (LOOP_H, sbitmap.o, profile.o): Reflect above changes. (toplev.o, print-rtl.o, conflict.o, unroll.o, bitmap.o): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34039 138bc75d-0d04-0410-961f-82ee72b054a4
* * jump.c (redirect_jump): Add delete_unused argument. Don'trth2000-05-191-80/+80
| | | | | | | | | | | | | | | | remove labels and code following when LABEL_NUSES goes to zero. (invert_jump): Likewise. (jump_optimize_1): Fix redirect/invert arguments. (do_cross_jump, thread_jumps): Likewise. * flow.c (split_edge): Likewise. * reorg.c (optimize_skip): Likewise. (reorg_redirect_jump, relax_delay_slots, dbr_schedule): Likewise. * profile.c (instrument_arcs): Likewise. * loop.c (find_and_verify_loops): Likewise. Fix indentation. * rtl.h: Update prototypes. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34033 138bc75d-0d04-0410-961f-82ee72b054a4
* * rtlanal.c (insn_dependant_p, insn_dependant_p_1): New.rth2000-05-191-4/+3
| | | | | | | | * rtl.h (insn_dependant_p): Declare it. * loop.c (strength_reduce): Use it. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34010 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (scan_loop, strength_reduce, loop_optimize): Change unroll_phubicka2000-05-151-14/+14
| | | | | | | | | | and bct_p parameters to flags. * loop.h (LOOP_UNROLL, LOOP_BCT): New constants. * rtl.h (loop_optimize): Update prototype. * toplev.c (rest_of_compilation): Update call of loop_optimize. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33912 138bc75d-0d04-0410-961f-82ee72b054a4
* * cse.c (CSE_ADDRESS_COST): Remove.hubicka2000-04-271-19/+12
| | | | | | | | | | | | | | | | | | | | (find_best_addr): Add new parameter "MODE", use address_cost instead of CSE_ADDRESS_COST (address_cost): New. (fold_rtx): Update call of find_best_addr. * rtl.h (address_cost): Declare. * loop.c (general_induction_var): Add new parameter "MODE", use address_cost instead of ADDRESS_COST (init_loop): Use address_cost instead of ADDRESS_COST. (check_insn_for_givs): Update call of general_induction_var. (find_mem_givs): Likewise. (consec_sets_giv): Likewise. * config/i386/i386.h (ADDRESS_COST): Call ix86_address_cost. * i386.c (ix86_address_cost): New. * i386-protos.h (ix86_address_cost): Declare. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33486 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (load_mems) Don't use hard registers for the hoisting.hubicka2000-04-271-1/+7
| | | | | | | | | * unroll.c (unroll_loop): Avoid overflow in the n_iterations calculation; rename const_equiv array in the preconditioning code from loop_unroll to loop_unroll_precondition git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33480 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (strength_reduce): Fix typo in the last checkin.hubicka2000-04-251-1/+1
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33413 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (strength_reduce): Simplify test to INSN_P.hubicka2000-04-241-10/+19
| | | | | | | | | (record_giv): Attempt to simplify the add value, use CONSTANT_P expressions instead of CONST_INT. (express_from_1): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33375 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (simplify_giv_expr): Be more agressive on simplifyinghubicka2000-04-231-13/+28
| | | | | | | constant MULT givs. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33357 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (maybe_eliminate_biv_1): Use GET_CODE (x) == CONST_INT insteadhubicka2000-04-231-20/+21
| | | | | | | of CONSTANT_P for mult_val; always use validate_change to update insn. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33353 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (strength_reduce): Fix biv removal code.hubicka2000-04-221-13/+1
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33344 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (emit_iv_add_mult): Revert last change.rth2000-04-211-51/+5
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33302 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (emit_iv_add_mult): Simplify it's input and emithubicka2000-04-201-5/+51
| | | | | | | REG_EQUAL note explaining the calculated value. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33283 138bc75d-0d04-0410-961f-82ee72b054a4
* Even more lossage, sorry.hubicka2000-04-191-1/+1
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33256 138bc75d-0d04-0410-961f-82ee72b054a4
* Fix lossage caused by applying old version of my previous patch.hubicka2000-04-191-7/+8
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33254 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (check_insn_for_bivs, for_every_insn_in_loop,hubicka2000-04-191-338/+255
| | | | | | | | | | | check_insn_for_givs): Break out from ... (strength_reduce) ... here; use for_every_insn_in_loop to call check_insn_for_givs. * loop.h (for_every_insn_in_loop): Declare. (loop_insn_callback): New type. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33250 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (canonicalize_condition): Add WANT_REG argument.rth2000-04-171-4/+11
| | | | | | | | | | | | | Stop the search if we match it. * expr.h (canonicalize_condition): Update decl. * predict.c (expected_value_to_br_prob): Use it. Track last expected value note. (find_expected_value): Remove. * reorg.c (mostly_true_jump): Always use BR_PROB if present. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33214 138bc75d-0d04-0410-961f-82ee72b054a4
* * Rework fields used to describe positions of bitfields andkenner2000-03-251-12/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | modify sizes to be unsigned and use HOST_WIDE_INT. * alias.c (reg_known_value_size): Now unsigned. * c-typeck.c (build_unary_op, case ADDR_EXPR): Use byte_position. (really_start_incremental_init): Use bitsize_zero_node. (push_init_level, pop_init_level, output_init_element): Likewise. Use bitsize_unit_node and bitsize_one_node. (output_pending_init_elements, process_init_element): Likewise. * combine.c (combine_max_regno, reg_sign_bit_copies): Now unsigned. (make_extraction): Position and length HOST_WIDE_INT and unsigned HOST_WIDE_INT, respectively. (get_pos_from_mask): Passed in value is unsigned HOST_WIDE_INT. (num_sign_bit_copies): Returns unsigned. BITWIDTH now unsigned; rework arithmetic. Remove recursive call from arg to MAX. (combine_instructions, init_reg_last_arrays): NREGS now unsigned. (setup_incoming_promotions, can_combine_p, try_combine, simplify_set): REGNO now unsigned. (set_nonzero_bit_and_sign_copies): NUM now unsigned. (find_split_point, expand_compound_operation, make_extraction): LEN now unsigned HOST_WIDE_INT, POS now HOST_WIDE_INT. (make_field_assignment): Likewise. (combine_simplify_rtx): Add cast. (expand_compound_operation): MODEWIDTH now unsigned; rework arithmetic. (force_to_mode): WIDTH now unsigned; add cast. (if_then_else_cond): SIZE now unsigned. (nonzero_bits): MODE_WIDTH, RESULT_WIDTH, and WIDTH now unsigned. (extended_count): Now returns unsigned. (simplify_shift_const): COUNT unsigned; arg is now INPUT_COUNT. Add SIGNED_COUNT variable; MODE_WORDS and FIRST_COUNT now unsigned. (simplify_comparison): MODE_WIDTH now unsigned. (update_table_tick): REGNO and ENDREGNO now unsigned; new var R. (mark_used_regs_combine): Likewise; rework arithmetic. (record_value_for_reg): REGNO, ENDREGNO, and I now unsigned. (record_dead_and_set_regs, reg_dead_at_p, distribute_notes): Likewise. (record_promoted_value): REGNO now unsigned. (get_last_value_validate): REGNO, ENDREGNO, and J now unsigned. (get_last_value): REGNO now unsigned. (use_crosses_set_p): REGNO and ENDREGNO now unsigned. (reg_dead_regno, reg_dead_endregno): Now unsigned. (remove_death): Arg REGNO now unsigned. (move_deaths): REGNO, DEADREGNO, DEADEND, OUREND, and I now unsigned. (reg_bitfield_target_p): REGNO, REGNO, ENDREGNO, and ENDTREGNO now unsigned. * convert.c (convert_to_integer): INPREC and OUTPREC now unsigned. * cse.c (struct qty_table_elem): FIRST_REG and LAST_REG now unsigned. (struct cse_reg_info): REGNO now unsigned. (cached_regno): Now unsigned. (REGNO_QTY_VALID_P): Add cast. (make_new_qty, make_regs_eqv, delete_reg_eqiv): Regno args unsigned. (remove_invalid_regs): Likewise. (remove_invalid_subreg_refs): Likewise; arg WORD also unsigned as are variables END and I. (get_cse_reg_info, insert): Likewise. (mention_regs, invalidate_for_call): REGNO, ENDREGNO, and I unsigned. (canon_hash): Likewise. (insert_regs, lookup_for_remove): REGNO now unsigned. (invalidate): REGNO, ENDREGNO, TREGNO, and TENDREGNO now unsigned. New variable RN. * dbxout.c (dbxout_parms, dbxout_reg_parms): Don't check for REGNO < 0. * dwarf2out.c (dwarf2ou_frame_debug_expr): Remove cast. * emit-rtl.c (subreg_realpart_p): Add cast. (operand_subword): Arg I is now unsigned as is var PARTWORDS. (operand_subword_force): Arg I is now unsigned. * except.c (eh_regs): Variable I is now unsigned. * explow.c (hard_function_value): BYTES is unsigned HOST_WIDE_INT. * expmed.c (store_fixed_bit_field): Position is HOST_WIDE_INT; length is unsigned HOST_WIDE_INT; likewise for internal variables. (store_split_bit_field, extract_fixed_bit_field): Likewise. (extract_split_bit_field, store_bit_field, extract_bit_field): Likewise. * expr.c (store_constructor_fields, store_constructor, store_field): Positions are HOST_WIDE_INT and lengths are unsigned HOST_WIDE_INT. (expand_assignment, expand_expr, expand_expr_unaligned): Likewise. (do_jump): Likewise. (move_by_pieces, move_by_pieces_ninsns, clear_by_pieces): MAX_SIZE is now unsigned. (emit_group_load): BYTEPOS is HOST_WIDE_INT; BYTELEN is unsigned. (emit_group_store): Likewise. (emit_move_insn): I now unsigned. (store_constructor): Use host_integerp, tree_low_cst, and bitsize_unit_node. (get_inner_reference): Return bitpos and bitsize as HOST_WIDE_INT. Rework all calculations to use trees and new fields. * expr.h (promoted_input_arg): Regno now unsigned. (store_bit_field, extract_bit_field): Adjust types of pos and size. (mark_seen_cases): Arg is HOST_WIDE_INT. * flow.c (verify_wide_reg_1): REGNO now unsigned. * fold-const.c (decode_field_reference): Size and pos HOST_WIDE_INT; precisions and alignments are unsigned. (optimize_bit_field_compare, fold_truthop): Likewise. (int_const_binop): Adjust threshold for size_int_type_wide call. (fold_convert): Likewise. (size_int_type_wide): Make table larger and fix thinko that only had half of table used. (all_ones_mask_p, fold): Precisions are unsigned. * function.c (put_reg_info_stack): REGNO is unsigned. (instantiate_decl): Size is HOST_WIDE_INT. (instantiate_virtual_regs): I is unsigned. (assign_parms): REGNO, REGNOI, and REGNOR are unsigned. (promoted_input_arg): REGNO is unsigned. * function.h (struct function): x_max_parm_reg is now unsigned. * gcse.c (max_gcse_regno): Now unsigned. (struct null_pointer_info): min_reg and max_reg now unsigned. (lookup_set, next_set): REGNO arg now unsigned. (compute_hash_table): REGNO and I now unsigned. (handle_avail_expr): regnum_for_replacing now unsigned. (cprop_insn): REGNO now unsigned. (delete_null_pointer_checks_1): BLOCK_REG now pointer to unsigned. * ggc-common.c (ggc_mark_tree_children, case FIELD_DECL): New case. * global.c (set_preference): SRC_REGNO, DEST_REGNO, and I now unsigned. * hard-reg-set.h (reg_class_size): Now unsigned. * integrate.c (mark_stores): LAST_REG and I now unsigned; new UREGNO. * jump.c (mark_modified_reg): I now unsigned; add cast. (rtx_equal_for_thread_p): Add cast. * loop.c (max_reg_before_loop): Now unsigned. (struct_movable): REGNO now unsigned. (try_copy_prop): REGNO arg unsigned. (regs_match_p): XN and YN now unsigned. (consec_sets_invariant_p, maybe_eliminate_biv): REGNO now unsigned. (strength_reduce): Likewise; NREGS also unsigned. (first_increment_giv, last_increment_giv unsigned): Now unsigned. * loop.h (struct iv_class): REGNO now unsigned. (max_reg_before_loop, first_increment_giv, last_increment_giv): Now unsigned. * machmode.h (mode_size, mode_unit_size): Now unsigned. (mode_for_size, smallest_mode_for_size): Pass size as unsigned. * optabs.c (expand_binop): I and NWORDS now unsigned. (expand_unop): I now unsigned. * print-tree.c (print_node): Don't print DECL_FIELD_BITPOS, but do print DECL_FIELD_OFFSET and DECL_FIELD_BIT_OFFSET. * real.c (significand_size): Now returns unsigned. * real.h (significand_size): Likewise. * regclass.c (reg_class_size): Now unsigned. (choose_hard_reg_mode): Both operands now unsigned. (record_reg_classes): REGNO and NR now unsigned. (reg_scan): NREGS now unsigned. (reg_scan_update): old_max_regno now unsigned. (reg_scan_mark_refs): Arg MIN_REGNO and var REGNO now unsigned. * reload.c (find_valid_class): BEST_SIZE now unsigned. (find_dummy_reload): REGNO, NWORDS, and I now unsigned. (hard_reg_set_here_p): Args BEG_REGNO and END_REGNO now unsigned. Likewise for variable R. (refers_to_regno_for_reload_p): Args REGNO and END_REGNO now unsigned, as are variables INNER_REGNO and INNER_ENDREGNO; add new variable R. (find_equiv_reg): Add casts. (regno_clobbered_p): Arg REGNO now unsigned. * reload.h (struct reload): NREGS now unsigned. (refers_to_regno_for_reload_p): Regno args are unsigned. (regno_clobbered_p): Likewise. * reload1.c (reg_max_ref_width, spill_stack_slot_width): Now unsigned. (compute_use_by_pseudos): REGNO now unsigned. (find_reg): I and J now unsigned, new variable K, and change loop variables accordingly; THIS_NREGS now unsigned. (alter_reg): INHERENT_SIZE and TOTAL_SIZE now unsigned. (spill_hard_reg): REGNO arg now unsigned; add casts. (forget_old_reloads_1): REGNO, NR, and I now unsigned. (mark_reload_reg_in_use): Arg REGNO and vars NREGS and I now unsigned. (clear_reload_reg_in_use): Arg REGNO and vars NREGS, START_REGNO, END_REGNO, CONFLICT_START, and CONFLICT_END now unsigned. (reload_reg_free_p, reload_reg_reaches_end_p): Arg REGNO now unsigned. (choose_reload_regs): MAX_GROUP_SIZE now unsigned. (emit_reload_insns): REGNO now unsigned. (reload_cse_move2add): Add cast. (move2add_note_store): REGNO and I now unsigned; new variable ENDREGNO and rework loop. * resource.c (mark_referenced_resources, mark_set_resources): New variable R; REGNO and LAST_REGNO now unsigned. (mark_target_live_regs): J and REGNO now unsigned. * rtl.c (mode_size, mode_unit_size): Now unsigned. * rtl.h (union rtunion_def): New field rtuint. (XCUINT): New macro. (ADDRESSOF_REGNO, REGNO, SUBREG_WORD): New XCUINT. (operand_subword, operand_subword_force): Word number is unsigned. (choose_hard_reg_mode): Operands are unsigned. (refers_to-regno_p, dead_or_set_regno_p): Regno arg is unsigned. (find_regno_note, find_regno_fusage, replace_regs): Likewise. (regno_use_in, combine_instructions, remove_death): Likewise. (reg_scan, reg_scan_update): Likewise. (extended_count): Return is unsigned. * rtlanal.c (refers_to_regno_p): Args REGNO and ENDREGNO and vars I, INNER_REGNO, and INNER_ENDREGNO now unsigned; new variable X_REGNO. (reg_overlap_mentioned_p): REGNO and ENDREGNO now unsigned. (reg_set_last_first_regno, reg_set_last_last_regno): Now unsigned. (reg_reg_last_1): FIRS and LAST now unsigned. (dead_or_set_p): REGNO, LAST_REGNO, and I now unsigned. (dead_or_set_regno_p): Arg TEST_REGNO and vars REGNO and ENDREGNO now unsigned. (find_regno_note, regno_use_in): Arg REGNO now unsigned. (find_regno_fusage): Likewise; also var REGNOTE now unsigned. (find_reg_fusage): Variables REGNO, END_REGNO, and I now unsigned. (replace_regs): Arg NREGS now unsigned. * sdbout.c (sdbout_parms, sdbout_reg_parms): Don't check REGNO < 0. * simplify-rtx.c (simplify_unary_operation): WIDTH now unsigned. (simplify_binary_operation): Likewise. (cselib_invalidate_regno): Arg REGNO and variables ENDREGNO, I, and THIS_LAST now unsigned. (cselib_record_set): Add cast. * ssa.c (ssa_max_reg_num): Now unsigned. (rename_block): REGNO now unsigned. * stmt.c (expand_return): Bit positions unsigned HOST_WIDE_INT; sizes now unsigned. (all_cases_count): Just return -1 not -2. COUNT, MINVAL, and LASTVAL now HOST_WIDE_INT. Rework tests to use trees whenever possible. Use host_integerp and tree_low_cst. (mark_seen_cases): COUNT arg now HOST_WIDE_INT; Likewise variable NEXT_NODE_OFFSET; XLO now unsigned. (check_for_full_enumeration_handing): BYTES_NEEDED, I to HOST_WIDE_INT. * stor-layout.c (mode_for_size): SIZE arg now unsigned. (smallest_mode_for_size): Likewise. (layout_decl): Simplify handing of a specified DECL_SIZE_UNIT. KNOWN_ALIGN is now an alignment, so simplify code. Don't turn off DECL_BIT_FIELD if field is BLKmode, but not type. (start_record_layout): Renamed from new_record_layout_info. Update to new fields. (debug_rli, normalize_rli, rli_size_unit_so_far, rli_size_so_far): New functions. (place_union_field): Renamed from layout_union_field. Update to use new fields in rli. (place_field): Renamed from layout_field. Major rewrite to use new fields in rli; pass alignment to layout_decl. (finalize_record_size): Rework to use new fields in rli and handle union. (compute_record_mode): Rework to simplify and to use new DECL fields. (finalize_type_size): Make rounding more consistent. (finish_union_layout): Deleted. (layout_type, case VOID_TYPE): Don't set TYPE_SIZE_UNIT either. (layout_type, case RECORD_TYPE): Call new function names. (initialize_sizetypes): Set TYPE_IS_SIZETYPE. (set_sizetype): Set TYPE_IS_SIZETYPE earlier. (get_best_mode): UNIT is now unsigned; remove casts. * tree.c (bit_position): Compute from new fields. (byte_position, int_byte_position): New functions. (print_type_hash_statistics): Cast to remove warning. (build_range_type): Use host_integerp and tree_low_cst to try to hash. (build_index_type): Likewise; make subtype of sizetype. (build_index_2_type): Pass sizetype to build_range_type. (build_common_tree_nodes): Use size_int and bitsize_int to initialize nodes; add bitsize_{zero,one,unit}_node. * tree.h (DECL_FIELD_CONTEXT): Use FIELD_DECL_CHECK. (DECL_BIT_FIELD_TYPE, DECL_QUALIFIER, DECL_FCONTEXT): Likewise. (DECL_PACKED, DECL_BIT_FIELD): Likewise. (DECL_FIELD_BITPOS): Deleted. (DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET): New fields. (DECL_RESULT, DECL_SAVED_INSNS): Use FUNCTION_DECL_CHECK. (DECL_FRAME_SIZE, DECL_FUNCTION_CODE, DECL_NO_STATIC_CHAIN): Likewise. (DECL_INLINE, DECL_BUILT_IN_NONANSI, DECL_IS_MALLOC): Likewise. (DECL_BUILT_IN_CLASS, DECL_STATIC_CONSTRUCTOR): Likewise. (DECL_STATIC_DESTRUCTOR, DECL_NO_CHECK_MEMORY_USAGE): Likewise. (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT, DECL_NO_LIMIT_STACK) Likewise. (DECL_ORIGINAL_TYPE, TYPE_DECL_SUPPRESS_DEBUG): Use TYPE_DECL_CHECK. (DECL_ARG_TYPE_AS_WRITEN, DECL_ARG_TYPE): Use PARM_DECL_CHECK. (DECL_INCOMING_RTL, DECL_TRANSPARENT_UNION): Likewise. (DECL_ALIGN): Adjust to new field in union. (DECL_OFFSET_ALIGN): New field. (DECL_ERROR_ISSUED, DECL_TOO_LATE): Use LABEL_DECL_CHECK. (DECL_IN_TEXT_SECTION): Use VAR_DECL_CHECK. (union tree_decl): Add struct for both aligns. (enum tree_index): Add TI_BITSIZE_{ZERO,ONE,UNIT}. (bitsize_zero_node, bitsize_one_node, bitsize_unit_node): Added. (struct record_layout_info): Rework fields to have offset alignment and byte and bit position. (start_record_layout, place_field): Renamed from old names. (rli_size_so_far, rli_size_unit_so_far, normalize_rli): New decls. (byte_position, int_byte_position): Likewise. (get_inner_reference): Change types of position and length. * unroll.c (unroll_loop): New variable R; use for some loops. MAX_LOCAL_REGNUM and MAXREGNUM now unsigned. (calculate_giv_inc): Arg REGNO now unsigned. (copy_loop_body): REGNO and SRC_REGNO now unsigned. * varasm.c (assemble_variable): Clean up handling of size using host_integerp and tree_low_cst. (decode_addr_const): Use byte, not bit, position. (output_constructor): bitpos and offsets are HOST_WIDE_INT; use tree_low_cst and int_bit_position. * objc/objc-act.c (build_ivar_list_initializer): Use byte_position. * ch/actions.c (check_missing_cases): BYTES_NEEDED is HOST_WIDE_INT. * ch/typeck.c (expand_constant_to_buffer): Use int_byte_position. (extract_constant_from_buffer): Likewise. * cp/class.c (build_vbase_pointer_fields): layout_field now place_field. (get_vfield_offset): Use byte_position. (set_rtti_entry): Set OFFSET to ssizetype zero. (get_binfo_offset_as_int): Deleted. (dfs_record_base_offsets): Use tree_low_cst. (dfs_search_base_offsets): Likewise. (layout_nonempty_base_or_field): Reflect changes in RLI format and call byte_position. (layout_empty_base): Convert offset to ssizetype. (build_base_field): use rli_size_unit_so_far. (dfs_propagate_binfo_offsets): Do computation in proper type. (layout_virtual_bases): Pass ssizetype to propagate_binfo_offsets. (layout_class_type): Reflect changes in RLI names and fields. (finish_struct_1): Set DECL_FIELD_OFFSET. * cp/dump.c (dequeue_and_dump): Call bit_position. * cp/expr.c (cplus_expand_constant): Use byte_position. * cp/rtti.c (expand_class_desc): Use bitsize_one_node. * cp/typeck.c (build_component_addr): Use byte_position and don't special case for zero offset. * f/com.c (ffecom_tree_canonize_ptr_): Use bitsize_zero_node. (ffecom_tree_canonize_ref_): Likewise. * java/class.c (make_field_value): Use byte_position. * java/expr.c (JAVA_ARRAY_LENGTH_OFFSET): Use byte_position. (java_array_data_offset): Likewise. * java/java-tree.h (MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC): Add case to bzero call. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32742 138bc75d-0d04-0410-961f-82ee72b054a4
* * emit-rtl.c (remove_unncessary_notes): Check that allmmitchel2000-03-191-10/+5
| | | | | | | | | | | | | | | | | | | | | | NOTE_INSN_BLOCK_BEG and NOTE_INSN_BLOCK_END notes have an associated NOTE_BLOCK. * function.h (identify_blocks): Update comments. (reorder_blocks): Declare. * function.c (identify_blocks): Don't take paramters. (reorder_blocks): Don't take parameters. * loop.h (find_loop_tree_blocks): Remove. (unroll_block_trees): Likewise. * loop.c (loop_optimize): Don't call find_loop_tree_blocks. Use reorder_blocks instead of unroll_block_trees.h * sibcall.c (optimize_sibling_and_tail_recursive_calls): Likewise. * stmt.c (find_loop_tree_blocks): Remove. (unroll_block_trees): Likewise. * toplev.c (rest_of_compilation): Don't call find_loop_tree_blocks in whole-function mode. * tree.h (reorder_blocks): Remove declaration. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32632 138bc75d-0d04-0410-961f-82ee72b054a4
* Add cselib; use it in loop and reload_cse_regscrux2000-03-141-5/+57
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32538 138bc75d-0d04-0410-961f-82ee72b054a4
* Fix for SH gcc.c-torture/compile/991229-3.c failure:amylaar2000-02-281-2/+6
| | | | | | | | * loop.c (reg_in_basic_block_p): Don't abort when falling through to the end of the function. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32229 138bc75d-0d04-0410-961f-82ee72b054a4
* Fix copyrights.law2000-02-261-1/+2
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32178 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (canonicalize_condition): New function,wehle2000-02-181-31/+62
| | | | | | | | | | | | broken out of get_condition. (get_condition): Use it. * expr.h (canonicalize_condition): Prototype it. * tree.h (tree_int_cst_msb): Declare. * tree.c (tree_int_cst_msb): New function. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32045 138bc75d-0d04-0410-961f-82ee72b054a4
* Reflect renaming of invariant_p to loop_invariant_p in comment.amylaar2000-01-271-2/+3
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31644 138bc75d-0d04-0410-961f-82ee72b054a4
* 2000-01-26 Michael Hayes <m.hayes@elec.canterbury.ac.nz>m.hayes2000-01-251-207/+222
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * loop.c (current_loop_info): Delete. (consec_sets_invariant_p): Add loop argument, update callers. (get_condition_for_loop): Likewise. (count_nonfixed_reads, update_giv_derive): Likewise. (simplify_giv_expr, general_induction_var): Likewise. (consec_sets_giv, recombine_givs): Likewise. (move_movables): Delete loop_start and loop_end arguments, add loop argument, and update callers. (find_mem_givs, check_final_value): Likewise. (record_giv, maybe_eliminate_biv, maybe_eliminate_biv_1): Likewise. (loop_invariant_p): Rename from invariant_p, add loop argument, and update callers. (basic_induction_var): Add loop argument, delete loop_level argument, and update callers. * unroll.c (iteration_info): Delete loop_start and loop_end arguments, add loop argument, and update callers. (find_splittable_regs, find_splittable_givs): Likewise. (reg_dead_after_loop, loop_find_equiv_value): Likewise. (final_biv_value, final_giv_value, back_branch_in_range_p): Likewise. (biv_total_increment): Delete loop_start and loop_end arguments; update callers. (precondition_loop_p): Delete loop_start and loop_info arguments; update callers. * loop.h (get_condition_for_loop): Add loop argument. (biv_total_increment): Delete loop_start and loop_end arguments. (precondition_loop_p): Delete loop_start and loop_info arguments; add loop argument. (final_biv_value): Delete loop_start and loop_end arguments; add loop argument. (final_giv_value, back_branch_in_range_p): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31618 138bc75d-0d04-0410-961f-82ee72b054a4
* 2000-01-25 Michael Hayes <m.hayes@elec.canterbury.ac.nz>m.hayes2000-01-251-8/+8
| | | | | | | | | | | * loop.h (LOOP_INFO): New accessor macro. * basic-block.h (struct loop): Rename field `info' to `aux'. * loop.c (scan_loop): Replace loop->info with LOOP_INFO (loop). (prescan_loop, strength_reduce, check_dbra_loop, insert_bct): Likewise. * unroll.c (loop_iterations, unroll_loop): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31596 138bc75d-0d04-0410-961f-82ee72b054a4
* * rtl.def: Add unordered fp comparisions.rth2000-01-241-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * tree.def: Likewise. * tree.h: Add ISO C 9x unordered fp comparision builtins. * builtins.c (expand_tree_builtin): New function. * c-typeck.c (build_function_call): Use it. (build_binary_op): Support unordered compares. * c-common.c (c_common_nodes_and_builtins): Add unordered compares. * combine.c (known_cond): Handle reverse_condition returning UNKNOWN. (reversible_comparison_p): Allow UNORDERED/ORDERED to be reversed. * cse.c (fold_rtx): Check FLOAT_MODE_P before reversing. (record_jump_equiv): Handle reverse_condition returning UNKNOWN. * jump.c (reverse_condition): Don't abort for UNLE etc, but return UNKNOWN. (swap_condition): Handle unordered compares. (thread_jumps): Check can_reverse before reversing. * loop.c (get_condition): Likewise. Allow UNORERED/ORDERED to be reversed for FP. * optabs.c (can_compare_p): New argument CODE. Verify branch or setcc is present before acking for cmp_optab. Update all callers. (prepare_float_lib_cmp, init_optabs): Handle UNORDERED. * expmed.c (do_cmp_and_jump): Update for can_compare_p. * expr.c (expand_expr): Likewise. Support unordered compares. (do_jump, do_store_flag): Likewise. * expr.h (enum libfunc_index): Add unordered compares. * Makefile.in (FPBIT_FUNCS): Add _unord_sf. (DPBIT_FUNCS): Add _unord_df. * config/fp-bit.c (_unord_f2): New. * fp-test.c (main): Try unordered compare builtins. * alpha-protos.h (alpha_fp_comparison_operator): Declare. * alpha.c (alpha_comparison_operator): Check mode properly. (alpha_swapped_comparison_operator): Likewise. (signed_comparison_operator): Likewise. (alpha_fp_comparison_operator): New. (alpha_emit_conditional_branch): Handle unordered compares. * alpha.h (PREDICATE_CODES): Update. * alpha.md (fp compares): Use alpha_fp_comparison_operator. (bunordered, bordered): New. * cp/call.c (build_over_call): Use expand_tree_builtin. * cp/typeck.c (build_function_call_real): Likewise. (build_binary_op_nodefault): Handle unordered compares. * gcc.c-torture/execute/ieee/fp-cmp-4.c: New. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31591 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (check_dbra_loop): When checking a loop forcpopetz2000-01-231-1/+1
| | | | | | | | reversability, check the source of any stores to ensure they don't depend on an initial value. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31569 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (loops_info): New variable.m.hayes2000-01-221-13/+12
| | | | | | | | | | (loop_optimize): Allocate loops->array and free it on exit. Allocate memory for loops_info and assign to each loop, replacing alloca. (find_and_verify_loops): Do not allocate loops->array. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31556 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (loop_optimize): Allocate loop_info structure for each loopm.hayes2000-01-191-3/+9
| | | | | | | prior to calling scan_loop. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31508 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (current_loop_info): Renamed from loop_info_datam.hayes2000-01-191-5/+8
| | | | | | | | | | | | | and changed to a pointer. (loop_optimize): Allocate loop_info structure for each loop and initialise to zero. (scan_loop): Set current_loop_info. * unroll.c (loop_iterations): Don't abort if REG_USERVAR_P set on iteration_var. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31501 138bc75d-0d04-0410-961f-82ee72b054a4
* * combine.c (combine_simplify_rtx): Give FLOAT_STORE_FLAG_VALUE a mode.rth2000-01-181-2/+4
| | | | | | | | | | | | | * cse.c (find_comparison_args, fold_rtx): Likewise. * integrate.c (subst_constants): Likewise. * loop.c (get_condition): Likewise. * tm.texi (FLOAT_STORE_FLAG_VALUE): Update docs. * alpha.h (FLOAT_STORE_FLAG_VALUE): Use REAL_VALUE_ATOF. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31479 138bc75d-0d04-0410-961f-82ee72b054a4
* * ggc-common.c: PROTO -> PARAMS.ghazi2000-01-171-63/+63
| | | | | | | | | | | | | | | | | | | | | * ggc-page.c: Likewise. * ggc-simple.c: Likewise. * ggc.h: Likewise. * global.c: Likewise. * graph.c: Likewise. * gthr-win32.h: Likewise. * haifa-sched.c: Likewise. * halfpic.h: Likewise. * integrate.c: Likewise. * integrate.h: Likewise. * jump.c: Likewise. * lcm.c: Likewise. * local-alloc.c: Likewise. * loop.c: Likewise. * loop.h: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31458 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (this_loop_info): Delete.m.hayes2000-01-151-440/+357
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (uid_loop): Add in place of uid_loop_num. All uses updated. (loop_number_exit_count): Delete and replace with entry in loop structure. All uses updated. (loop_number_loop_starts, loop_number_loop_ends): Likewise. (loop_number_loop_cont, loop_number_cont_dominator): Likewise. (loop_outer_loop): Likewise. (loop_invalid, loop_number_exit_labels): Likewise. (loop_used_count_register): Delete and replace with entry in loop_info structure. (find_and_verify_loops): Add loops argument. (verify_dominator, mark_loop_jump, prescan_loop): Replace loop_start, loop_end, etc. arguments with loop structure pointer. All callers changed. (loop_reg_used_before_p, scan_loop, strength_reduce): Likewise. (check_dbra_loop, next_insn_in_loop, try_copy_prop): Likewise. (load_mems_and_recount_loop_regs_set, load_mems): Likewise. (insert_bct): Likewise. (basic_induction_var): New argument level. * loop.h (struct loop_info): Delete fields num, loops_enclosed, vtop, and cont. Add used_count_register. (uid_loop): Delete declaration. (loop_number_exit_count): Likewise. (loop_number_loop_starts, loop_number_loop_ends): Likewise. (loop_number_loop_cont, loop_number_cont_dominator): Likewise. (loop_outer_loop, loop_used_count_register): Likewise. (loop_invalid, loop_number_exit_labels): Likewise. (unroll_loop): Replace loop_start and loop_end arguments with loop structure pointer. (loop_precondition_p, loop_iterations): Likewise. Include basic-block.h. * unroll.c: (unroll_loop): Replace loop_start and loop_end arguments with loop structure pointer. (loop_precondition_p, loop_iterations): Likewise. * basic-block.h (struct loop): New entries vtop, cont, cont_dominator, start, end, top, scan_start, exit_labels, exit_count. * Makefile.in (LOOP_H): Add basic-block.h to dependencies. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31434 138bc75d-0d04-0410-961f-82ee72b054a4
* * cse.c (cse_insn): Missing cast added.law2000-01-051-1/+1
| | | | | | | | | | | | * loop.c (loop_reg_used_before_p): Ditto. * gcse.c (Pre_gcse, hoist_code): Ditto. * varasm.c (decode_rtx_const): Ditto. * except.c (push_ehqueue): Ditto. * cccp.c (index0): Ditto. * toplev.c (main): Useless `&' removed before function name. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31229 138bc75d-0d04-0410-961f-82ee72b054a4
* * builtins.c (expand_builtin_strlen): Initialize variable `icode'.ghazi2000-01-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * calls.c (expand_call): Likewise for `old_stack_arg_under_construction'. * cpphash.c (macroexpand): Likewise for `args' and `rest_zero'. * function.c (pad_to_arg_alignment): Likewise for `save_var' and `save_constant'. * gcc.c (execute): Likewise for `ut' and `st'. * genattrtab.c (attr_rtx): Likewise for `rt_val'. * genopinit.c (gen_insn): Likewise for `m1', `m2' and `op'. * jump.c (jump_optimize_1): Likewise for `temp2'. * local-alloc.c (block_alloc): Likewise for `r1'. * loop.c (recombine_givs): Likewise for `life_start' and `life_end'. * reg-stack.c (check_asm_stack_operands): Likewise for `clobber_reg'. (subst_asm_stack_regs): Likewise for `clobber_reg' and `clobber_loc'. * regmove.c (fixup_match_1): Likewise for `insn_const', `dst_node' and `set2'. * reload.c (find_reloads): Likewise for `goal_alternative_number' and `goal_earlyclobber'. * scan-decls.c (scan_decls): Likewise for `prev_id_end'. * sdbout.c (sdbout_one_type): Likewise for `member_scl'. * stupid.c (stupid_life_analysis): Likewise for `chain'. * unroll.c (copy_loop_body): Likewise for `copy'. * varasm.c (output_constructor): Likewise for `byte'. ch: * actions.c (update_else_range_for_int_const): Initialize variables `lowval' and `highval'. (update_else_range_for_range): Likewise for `low_range_val' and `high_range_val'. cp: * class.c (warn_hidden): Initialize variable `fndecl'. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31207 138bc75d-0d04-0410-961f-82ee72b054a4
* * alias.c (nonlocal_reference_p): Add else for disjoint ifs.rth1999-12-271-2/+2
| | | | | | | | | | | | | | | | * flow.c (find_use_as_address): Likewise. * function.c (fixup_var_refs_1): Likewise. (walk_fixup_memory_subreg, fixup_stack_1): Likewise. * jump.c (invert_exp, redirect_exp): Likewise. * loop.c (replace_call_address): Likewise. (count_nonfixed_reads): Likewise. * rtlanal.c (modified_between_p): Likewise. (modified_in_p, volatile_insn_p, volatile_refs_p): Likewise. (side_effects_p, replace_regs, jmp_uses_reg_or_mem): Likewise. * unroll.c (remap_split_bivs): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31103 138bc75d-0d04-0410-961f-82ee72b054a4
* * Makefile.in (toplev.o): Depend on loop.h.ghazi1999-12-241-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * dwarfout.c: Include tm_p.h. * emit-rtl.c (restore_emit_status): Mark parameter with ATTRIBUTE_UNUSED. * final.c (final_scan_insn): Likewise. * flow.c (flow_nodes_print, flow_exits_print, flow_loops_cfg_dump, flow_loop_nested_p, flow_loop_exits_find, flow_loop_nodes_find, flow_depth_first_order_compute, flow_loop_pre_header_find, flow_loop_tree_node_add, flow_loops_tree_build, flow_loop_level_compute, flow_loops_level_compute, flow_loop_outside_edge_p): Add prototypes. (recompute_reg_usage): Mark parameters with ATTRIBUTE_UNUSED. * ggc-callbacks.c (lang_mark_tree, lang_mark_false_label_stack): Mark with ATTRIBUTE_NORETURN. * hash.c (hash_newfunc): Mark parameter with ATTRIBUTE_UNUSED. * local-alloc.c (no_conflict_p): Likewise. * loop.c (insert_bct): Hide definitions of variables with hidden usage. (note_reg_stored): Mark parameter with ATTRIBUTE_UNUSED. * regclass.c (memory_move_secondary_cost): Mark variable `mem' with ATTRIBUTE_UNUSED. (record_reg_classes): Mark parameter with ATTRIBUTE_UNUSED. (reg_scan): Likewise. * reload.c (find_reloads): Remove unused variables `changed'. * reload1.c (reload_reg_class_lower): Don't unnecessarily cast away const-ness. (allocate_reload_reg): Mark parameter with ATTRIBUTE_UNUSED. Remove unused variable `insn'. * toplev.c: Include loop.h. (report_file_and_line): Remove unnecessary prototype. * tree.c (build_block): Mark parameter with ATTRIBUTE_UNUSED. * unroll.c (biv_total_increment): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31085 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (insert_loop_mem): Don't record MEMs from insiderearnsha1999-12-171-0/+4
| | | | | | | EXPR_LISTs. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30994 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (insert_loop_mem): Ignore memory clobbers.law1999-12-161-0/+4
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30973 138bc75d-0d04-0410-961f-82ee72b054a4
* Avoid reversing bivs with maybe_multiple set.crux1999-12-141-0/+1
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30929 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (strength_reduce): Fix sign of giv lifetime calculationamylaar1999-12-141-1/+1
| | | | | | | for givs made from biv increments. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30927 138bc75d-0d04-0410-961f-82ee72b054a4
* Run reg_scan_update to get information about regs created by loop.crux1999-12-141-2/+18
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30914 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (load_mems): Don't hoist written floating point memmmitchel1999-12-121-1/+5
| | | | | | | if -ffloat-store. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30875 138bc75d-0d04-0410-961f-82ee72b054a4
* Undo previous changecrux1999-12-101-2/+1
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30858 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.c (record_biv): Declare parameter as int.mmitchel1999-12-091-0/+1
| | | | | | | * config/i386/i386-protos.h: Declare long_memory_operand. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30851 138bc75d-0d04-0410-961f-82ee72b054a4
* Don't hoist volatile mems out of loops.crux1999-12-081-1/+2
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30834 138bc75d-0d04-0410-961f-82ee72b054a4
* * loop.h (struct induction): Add multi_insn_incr.rth1999-12-081-16/+50
| | | | | | | | | | | * loop.c (basic_induction_var): New multi_insn_incr argument. Set it if we search back through previous insns for the biv. (record_biv): New multi_insn_incr argument; fill in struct induction. (strength_reduce): Discard an iv with multiple bivs, any of which require multiple insns to increment. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30820 138bc75d-0d04-0410-961f-82ee72b054a4
* Prevent invalid transformationscrux1999-12-021-7/+63
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30758 138bc75d-0d04-0410-961f-82ee72b054a4
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