Commit Graph

256 Commits

Author SHA1 Message Date
J"orn Rennecke
15c68354e9 cse.c (cse_insn): Don't put hard register source into tables for last insn of a libcall.
* cse.c (cse_insn): Don't put hard register source into tables for
	last insn of a libcall.

From-SVN: r27550
1999-06-16 14:32:14 +01:00
Andreas Schwab
51e2a951cc cse.c (cse_insn): Copy SRC_CONST before putting it in the REG_EQUAL note.
* cse.c (cse_insn): Copy SRC_CONST before putting it in the
        REG_EQUAL note.

From-SVN: r26958
1999-05-16 18:36:36 -06:00
Jeffrey A Law
01e752d386 cse.c (flush_hash_table): New function.
* cse.c (flush_hash_table): New function.
        (cse_insn): Flush the hash table when we encounter a volatile asm.
        (cse_basic_block): Use flush_hash_table instead of doing it
        inline.
        * reload1.c (reload_cse_regs_1): Flush known register values if
        we encounter a volatile asm.

From-SVN: r26304
1999-04-08 18:29:45 -06:00
Mark Mitchell
30f7237966 alias.c (alias_set_compare): Remove.
* alias.c (alias_set_compare): Remove.
	(record_alias_subset): Use splay_tree_compare_ints instaed of
	alias_set_compare.
	(init_alias_once): Likewise.
	* cse.c: Include splay-tree.h.
	(reg_qty): Remove.
	(reg_tick): Likewise.
	(reg_table): Likewise.
	(cse_reg_info): New structure.
	(cse_reg_info_free_list): New variable.
	(cse_reg_info_tree): Likewise.
	(cached_regno): Likewise.
	(cached_cse_reg_info): Likewise.
	(all_minus_one): Remove.
	(consec_ints): Likewise.
	(GET_CSE_REG_INFO): New macro.
	(REG_TICK): Likewise.  Use throughout instead of reg_tick.
	(REG_IN_TABLE): Likewise.  Use throughout instead of reg_in_table.
	(REG_QTY): Likewise.  Use throughout instead of reg_qty.
	(get_cse_reg_info): New function.
	(free_cse_reg_info): Likewise.
	(new_basic_block): Reinitialize cse_reg_info_tree instead of
	reg_tick, all_minus_one, and consec_ints.
	* Makefile.in (cse.o): Depend on splay-tree.h
	* splay-tree.h (splay_tree_compare_ints): Declare.
	* splay-tree.c (splay_tree_compare_ints): Define.

From-SVN: r26069
1999-03-30 20:52:33 +00:00
J"orn Rennecke
50270076bd * cse.c (cse_insn): Don't change the result register of a libcall.
From-SVN: r25898
1999-03-22 13:55:22 +00:00
Kaveh R. Ghazi
1a87eea220 cse.c (check_fold_consts): New static function.
* cse.c (check_fold_consts): New static function.
        (cfc_args): New struct.
        (simplify_relational_operation): Use them in call to
        `do_float_handler'.
        * toplev.c (do_float_handler): New function to wrap calls to
        setjmp/set_float_handler.
        * toplev.h (do_float_handler): Add extern prototype.
        * tree.c (build_real_from_int_cst_1): New static function.
        (brfic_args): New struct.
        (build_real_from_int_cst): Use them in call to
        `do_float_handler'.

From-SVN: r25768
1999-03-14 14:02:10 +00:00
Richard Henderson
9a794e5054 * cse.c (canon_hash): Never reject hard regs in CCmode.
From-SVN: r25623
1999-03-06 18:00:27 -08:00
Franz Sirl
ac7ef8d56b cse.c (fold_rtx): Update comments for (const (minus (label) (label))) case.
* cse.c (fold_rtx): Update comments for (const (minus (label) (label)))
        case.
        (cse_insn): Avoid creating a bogus REG_EQUAL note for
        (const (minus (label) (label)))
        (record_jump_cond): Fix mismatched paren in comment.
Fixes powerpc label-label problem.
Bootstraps on the x86.

Co-Authored-By: Jeffrey A Law <law@cygnus.com>

From-SVN: r25527
1999-03-01 17:45:45 -07:00
Kaveh R. Ghazi
a015305167 cse.c (dump_class): Revert last change and make the prototype extern.
* cse.c (dump_class): Revert last change and make the prototype
       extern.

From-SVN: r25438
1999-02-25 11:43:00 +00:00
Kaveh R. Ghazi
592e5d21b1 cse.c (dump_class): Make the function definition static to match the prototype.
* cse.c (dump_class): Make the function definition static to match
       the prototype.

From-SVN: r25430
1999-02-25 09:29:10 +00:00
Mark Mitchell
a4c6502a66 cse.c (dump_class): New function.
* cse.c (dump_class): New function.
	(invalidate_memory): Fix typo in comment.
	* function.c (temp_slot): Add an alias set field.
	(assign_stack_temp): Only reuse slots if they will have the
	same alias set as before.
	(combine_temp_slots): Don't combine if -fstrict-aliasing;
	that's unsafe.
	* rtl.c (copy_rtx): Copy all the flags (in particular,
	MEM_SCALAR_P).

From-SVN: r25372
1999-02-22 13:34:33 +00:00
Jeffrey A Law
ab87f8c8d1 Merge in gcc2 snapshot 19980929. See gcc/ChangeLog and gcc/FSFChangeLog for
details.

From-SVN: r24879
1999-01-26 18:43:17 -07:00
Richard Henderson
ee5332b81a cse.c (fold_rtx): Revert 29 Dec change.
* cse.c (fold_rtx): Revert 29 Dec change.
        (cse_insn): Revert 12 Jan change.
        * expr.c (expand_builtin): Don't emit CONST around CONSTANT_P_RTX.
        * regclass.c (reg_scan_mark_refs): Revert 29 Dec change.
        * rtl.def: Likewise.
        * rtl.h (CONSTANT_P): Likewise.
        * expr.c (emit_move_insn): Never try to flush CONSTANT_P_RTX
        to memory.
        * recog.c (immediate_operand): Accept CONSTANT_P_RTX.
        * alpha.c (input_operand): Likewise.
        * c4x.c (const_operand): Likewise.
        * explow.c (allocate_dynamic_stack_space): Use register_operand
        instead of arith_operand, which does not exist.
        * 1750a.h: Fix comment closure.
        * a29k.c (a29k_set_memflags): Fix typo in 19 Jan change.
        * arc.md (one_cmplsi2_set_cc_insn): Fix set mode mismatch.
        * arm.h (TARGET_SWITCHES): Fix typo.
        * i370.md (anon mult and div patterns): Fix set mode mismatch.
        * i860.c (output_delayed_branch): Fix operands to constrain_operands.
        (output_delay_insn): Likewise.
        * m88k.md (anon rotate insns): Fix set mode mismatch.
        (anon BLKmode moves): Commonize and fix set mode mismatches.
        * ns32k.md (udivmoddi[shq]i4_internal): Fix mode mismatch.
        * romp.md (movdf): Fix typo.

From-SVN: r24796
1999-01-20 18:21:28 -08:00
Mark Mitchell
747215f1fe Update copyrights
From-SVN: r24765
1999-01-19 12:08:36 +00:00
Mark Mitchell
c6df88cbec rtl.h (rtx_def): Update documentation.
* rtl.h (rtx_def): Update documentation.
	(MEM_IN_STRUCT_P): Likewise.
	(MEM_SCALAR_P): New macro.
	(MEM_COPY_ATTRIBUTES): Likewise.
	(MEM_SET_IN_STRUCT_P): Likewise.
	* rtl.texi (MEM_SCALAR_P): Document.
	* alias.c (canon_rtx): Use MEM_COPY_ATTRIBUTES.
	(fixed_scalar_and_varying_struct_p): New function.  Use
	MEM_SCALAR_P rather than !MEM_IN_STRUCT_P.
	(aliases_everything_p): Likewise.
	(true_dependence): Use them.
	(write_dependence_p): New function, containing code common to
	anti_dependence and output_dependence.
	(anti_dependence): Use it.
	(output_dependence): Likewise.
	* calls.c (save_fixed_argument_area): Don't clear
	MEM_IN_STRUCT_P.
	(expand_call): Use MEM_SET_IN_STRUCT_P.
	(emit_library_call): Don't clear MEM_IN_STRUCT_P.
	(emit_library_call_value): Likewise.
	(store_one_arg): Use MEM_SET_IN_STRUCT_P.
	* combine.c (simplify_rtx): Use MEM_COPY_ATTRIBUTES.
	(make_extraction): Likewise.
	(simplify_shift_const): Likewise.
	(gen_lowpart_for_combine): Likewise.
	* cse.c (gen_lowpart_if_possible): Use MEM_COPY_ATTRIBUTES.
	* emit-rtl.c (operand_subword): Likewise.
	(change_address): Likewise.
	* explow.c (stabilize): Use MEM_COPY_ATTRIBUTES.
	* expr.c (protect_from_queue): Use MEM_COPY_ATTRIBUTES.
	(emit_group_store): Use MEM_SET_IN_STRUCT_P.
	(copy_blkmode_from_reg): Likewise.
	(store_field): Likewise.
	(expand_expr): Remove bogus guesswork setting MEM_IN_STRUCT_P
	heuristically.  Use MEM_SET_IN_STRUCT_P.
	(get_memory_rtx): Likewise.
	* final.c (alter_subreg): Use MEM_COPY_ATTRIBUTES.
	* function.c (assign_stack_temp): Clear MEM_SCALAR_P and
	MEM_ALIAS_SET on newly returned MEMs.
	(assign_temp): Use MEM_SET_IN_STRUCT_P.
	(put_reg_into_stack): Likewise.
	(fixup_var_refs1): Use MEM_COPY_ATTRIBUTES.
	(gen_mem_addressof): Use MEM_SET_IN_STRUCT_P.
	(assign_parms): Likewise.
	(expand_function): Likewise.
	* integrate.c (expand_inline_function): Likewise.
	(copy_rtx_and_substitute): Use MEM_COPY_ATTRIBUTES.
	* loop.c (note_addr_stored): Remove check on MEM_IN_STRUCT_P.
	* optabs.c (gen_move_insn): Use MEM_COPY_ATTRIBUTES.
	* print-rtl.c (print_rtx): Print /f for frame_related.
	* recog.c (validate_replace_rtx_1): Use MEM_COPY_ATTRIBUTES.
	* reload1.c (reload): Copy MEM_SCALAR_P as well.
	* stmt.c (expand_decl): Use MEM_SET_IN_STRUCT_P.
	(expand_anon_union_decl): Use MEM_COPY_ATTRIBUTES.
	* varasm.c (make_decl_rtl): Use MEM_SET_IN_STRUCT_P.
	(output_constant_def): Likewise.
	* a29k.c (a29k_set_memflags_1): Take scalar_p.
	Set MEM_SCALAR_P.
	(a29k_set_memflags): Use it.
	* alpha.c (get_aligned_mem): Use MEM_COPY_ATTRIBUTES.
	* c4x.c (c4x_scan_for_ld): Likewise.
	* h8300.c (fix_bit_operand): Likewise.
	* m88k.c (legitimize_address): Likewise.
	(block_move_loop): Likewise.
	(block_move_no_loop): Likewise.
	(block_move_sequence): Likewise.
	(m88k_builtin_saveregs): Use MEM_SET_IN_STRUCT_P.
	* mips/abi64.h (SETUP_INCOMING_VARARGS): Likewise.
	* rs6000.c (expand_block_move_insn): Use MEM_COPY_ATTRIBUTES.
	* sh.c (sh_builtin_saveregs): Use MEM_SET_IN_STRUCT_P.
	* arm.h (arm_gen_load_multiple): Take scalar_p.
	(arm_store_load_multiple): Likewise.
	* arm.c (arm_gen_load_multiple): Likewise.
	(arm_gen_store_multiple): Likewise.
	(arm_gen_movstrqi): Treat MEM_SCALAR_P like MEM_IN_STRUCT_P.

From-SVN: r24759
1999-01-19 10:32:33 +00:00
Richard Henderson
1ff136fd07 * cse.c (cse_insn): Never prefer (const (constant_p_rtx)).
From-SVN: r24637
1999-01-11 18:54:32 -08:00
Jeffrey A Law
97577254a2 cse.c (invalidate_skipped_block): Call invalidate_from_clobbers for each insn in the skipped block.
* cse.c (invalidate_skipped_block): Call invalidate_from_clobbers
        for each insn in the skipped block.
Fixes m68k codegen bug.

From-SVN: r24450
1998-12-30 16:35:49 -07:00
Richard Henderson
185ebd6c71 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>:
* rtl.def (CONSTANT_P_RTX): Clarify commentary.
        * expr.c (expand_builtin, case BUILT_IN_CONSTANT_P): Rework to
        consider constant CONSTRUCTOR constant and to defer some cases
        to cse.
        * cse.c (fold_rtx, case CONST): Add handling for CONSTANT_P_RTX.
        * regclass.c (reg_scan_mark_refs, case CONST): Likewise.
Richard Henderson  <rth@cygnus.com>
        * expr.c (init_expr_once): Kill can_handle_constant_p recognition.
        * cse.c (fold_rtx, case 'x'): Remove standalone CONSTANT_P_RTX code.

From-SVN: r24439
1998-12-29 03:36:22 -08:00
Kaveh R. Ghazi
973838fdb3 Warning fixes:
* alias.c (record_alias_subset): Remove ignored `&'.
        (init_alias_once): Likewise.
        * c-lex.c (UNGETC): Cast first argument of comma expression to void.
        * config/mips/mips.c (mips_asm_file_end): Cast the result of
        fwrite to `int' when comparing against one.
        * config/mips/mips.h (CAN_ELIMINATE): Add parens around && within ||.
        (INITIAL_ELIMINATION_OFFSET): Add braces to avoid ambiguous `else'.
        * cse.c (rehash_using_reg): Change type of variable `i' to
        unsigned int.
        * dwarf2out.c (initial_return_save): Cast -1 to unsigned before
        assigning it to one.
        * except.c (duplicate_eh_handlers): Remove unused variable `tmp'.
        * final.c (final_scan_insn): Likewise for variable `i'.
        (output_asm_insn): Cast a char to unsigned char when used as an
        array index.
        * gcse.c (compute_pre_ppinout): Cast -1 to SBITMAP_ELT_TYPE when
        assigning it to one.
        * loop.c (strength_reduce): Remove unused variables `count' and `temp'.
        * recog.c (preprocess_constraints): Cast a char to unsigned char
        when used as an array index.
        * regmove.c (find_matches): Likewise.
        * reload1.c (calculate_needs): Add default case in switch.
        (eliminate_regs_in_insn): Initialize variable `offset'.
        (set_offsets_for_label): Change type of variable `i' to unsigned.
        (reload_as_needed): Wrap variable `i' in macro check on
        AUTO_INC_DEC || INSN_CLOBBERS_REGNO_P.
        * scan-decls.c (scan_decls): Mark parameters `argc' and `argv'
        with ATTRIBUTE_UNUSED.  Cast variable `start_written' to size_t
        when comparing against one.
        * stor-layout.c (layout_decl): Cast maximum_field_alignment to
        unsigned when comparing against one.  Likewise for
        GET_MODE_ALIGNMENT().
        (layout_record): Cast record_align to int when comparing against a
        signed value.
        (layout_type): Cast TYPE_ALIGN() to int when comparing against a
        signed value.
        * tree.c (get_identifier): Cast variable `len' to unsigned when
        comparing against one.
        (maybe_get_identifier): Likewise

From-SVN: r24403
1998-12-23 07:09:01 +00:00
Jim Wilson
737e7965de Fix alpha-x-m32r-elf bugs.
* cse.c (simplify_unary_operation): Sign-extend constants when
	they have the most significant bit set for the target.
	* real.c (endian): Sign-extend 32 bit output values on a 64 bit
	host.
	* m32r/m32r.c (m32r_expand_prologue): Store pretend_size in
	HOST_WIDE_INT temporary before negating it.
	* m32r/m32r.md (movsi_insn+1): Use ~0xffff instead of 0xffff0000.

From-SVN: r24254
1998-12-10 09:21:35 -08:00
Jeffrey A Law
940da3246d cse.c (fold_rtx): Make autoincrement addressing mode tests be runtime selectable.
* cse.c (fold_rtx): Make autoincrement addressing mode tests be
        runtime selectable.
        * expr.c (move_by_pieces): Similarly.
        (move_by_pieces_1, clear_by_pieces, clear_by_pieces_1): Similarly.
        * flow.c (find_auto_inc): Similarly.
        (try_pre_increment): Similarly.
        * loop.c (strength_reduce): Similarly.
        * regclass.c (auto_inc_dec_reg_p): Similarly.
        * regmove.c (try_auto_increment): Similarly.
        (fixup_match_1): Similarly.
        * rtl.h (HAVE_PRE_INCREMENT): Define if not already defined.
        (HAVE_PRE_DECREMENT): Similarly.
        (HAVE_POST_INCREMENT, HAVE_POST_DECREMENT): Similarly.
        sponding changes to all target header files.

From-SVN: r23837
1998-11-24 16:15:19 -07:00
Kaveh R. Ghazi
79c9824ecb Warning fixes:
* Makefile.in (flow.o): Depend on recog.h.
        * cpplib.h (directive_table): Add missing initializiers.
        (finclude): Change type of variable `bsize' to size_t.
        * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
        * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
        * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
        `int' when comparing against one.
        (cpp_file_line_for_message): Mark parameter `pfile' with
        ATTRIBUTE_UNUSED.
        (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
        * flow.c: Include recog.h.
        (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
        * function.c (thread_prologue_and_epilogue_insns): Mark parameter
        `f' with ATTRIBUTE_UNUSED.
        (reposition_prologue_and_epilogue_notes): Likewise.
        * genopinit.c (gen_insn): Cast argument of ctype functions to
        `unsigned char'.
        * haifa-sched.c: Include recog.h.
        (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
        comparing against one.
        * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
        * mips-tfile.c (parse_end): Cast the argument of ctype function to
        `unsigned char'.
        (parse_ent): Likewise.
        (parse_input): Likewise.
        * optabs.c (init_libfuncs): Likewise.
        * protoize.c (find_rightmost_formals_list): Likewise.
        * recog.h (const_double_operand): Fix typo in prototype.
        * tlink.c (scan_linker_output): Cast the argument of ctype
        function to `unsigned char'.
        * toplev.c (check_lang_option): Cast the result of `strlen' to
        `int' when comparing against one.

From-SVN: r23155
1998-10-17 20:26:29 +00:00
David S. Miller
925be47cd5 cse.c (cse_basic_block): Fixup hash flushing loop so we do not accidently walk into the free list.
* cse.c (cse_basic_block): Fixup hash flushing loop so we do not
	accidently walk into the free list.  Comment how that can happen.
	(invalidate): Fix indentation.

From-SVN: r23122
1998-10-15 18:23:51 -07:00
Nick Clifton
2ce5e1b422 Check for NULL return from gen_lowpart_if_possible().
From-SVN: r23049
1998-10-13 11:39:26 +00:00
J"orn Rennecke
37053d1fe5 * cse.c (insert_regs): Fix bug in Sep 24 change.
From-SVN: r22866
1998-10-06 13:04:55 +01:00
J"orn Rennecke
34c7390981 expr.c (store_constructor): When initializing a field that is smaller than a word...
* expr.c (store_constructor): When initializing a field that is smaller
	than a word, at the start of a word, try to widen it to a full word.
	* cse.c (cse_insn): When we are about to change a register,
	remove any invalid references to it.
	(remove_invalid_subreg_refs): New function.
	(mention_regs): Special treatment for SUBREGs.
	(insert_regs): Don't strip SUBREG for call to mention_regs.
	Check if reg_tick needs to be bumped up before that call.
	(lookup_as_function): Try to match known word_mode constants when
	looking for a norrower constant.
	(canon_hash): Special treatment for SUBREGs.

From-SVN: r22567
1998-09-24 10:59:41 +01:00
Jason Merrill
63be02dbae i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
* i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
	* alias.c (memrefs_conflict_p): Add braces to shut up warnings.
	* cse.c (cse_basic_block): Add parens to shut up warnings.

From-SVN: r21734
1998-08-14 12:28:30 -04:00
Vladimir N. Makarov
1ed0205e35 cse.c (cse_insn): Enable subsitution inside libcall only for REG, SUBREG, MEM.
�
	* cse.c (cse_insn): Enable subsitution inside libcall only for REG,
	SUBREG, MEM.
	* rtlanal.c (replace_rtx): Prohibit replaces in	CONST_DOUBLE.

From-SVN: r21435
1998-07-28 12:54:04 +00:00
Jeffrey A Law
02e39abcc1 cse.c (count_reg_usage): Count registers used in addresses of CLOBBERs.
* cse.c (count_reg_usage): Count registers used in addresses of
        CLOBBERs.

From-SVN: r21012
1998-07-08 14:46:15 -06:00
J"orn Rennecke
759bd8b73b * cse (cse_insn): Don't make change without validation.
From-SVN: r20996
1998-07-07 14:09:07 +01:00
Mark Mitchell
2f54179908 cse.c (CSE_ADDRESS_COST): New macro, based on ADDRESS_COST, but dealing with ADDRESSOF.
* cse.c (CSE_ADDRESS_COST): New macro, based on ADDRESS_COST, but
	dealing with ADDRESSOF.
	(find_best_addr): Use it.

From-SVN: r20945
1998-07-06 09:38:46 +00:00
Jeffrey A Law
7bd8b2a885 cse.c (cse_insn): Second arg is an RTX now.
* cse.c (cse_insn): Second arg is an RTX now.  Update all callers.
        (cse_basic_block): Keep track of the current RETVAL insn for a
        libcall instead of just noting that we're in a libcall.

From-SVN: r20936
1998-07-05 17:59:03 -06:00
Mark Mitchell
9de2c71a47 cse.c (cse_insn): When SETting (MEM (ADDRESSOF (X))) to Y...
* cse.c (cse_insn): When SETting (MEM (ADDRESSOF (X))) to Y,
        don't claim that the former is equivalent to the latter.

From-SVN: r20935
1998-07-05 17:33:36 -06:00
Richard Henderson
aac5cc1620 expr.c (emit_group_load, [...]): Rewrite considering the size and alignment of the structure being manipulated.
* expr.c (emit_group_load, emit_group_store): Rewrite considering
        the size and alignment of the structure being manipulated.
        * expr.c, calls.c, function.c: Update all callers.
        * expr.h: Update prototypes.
        * cse.c (invalidate): Cope with parallels.

From-SVN: r20867
1998-06-30 22:10:51 -07:00
Richard Henderson
cff48d8f76 rtl.def (CONSTANT_P_RTX): New.
* rtl.def (CONSTANT_P_RTX): New.
        * rtl.h (CONSTANT_P): Recognize it.
        * cse.c (fold_rtx): Eliminate it.
        * expr.c (can_handle_constant_p): New variable.
        (init_expr_once): Initialize it.
        (expand_builtin): Generate CONSTANT_P_RTX if the expression is not
        immediately recognizable as a constant.

From-SVN: r20846
1998-06-30 09:19:11 -07:00
Jeff Law
9ec36da574 * Merge from gcc2 June 9, 1998 snapshot. See ChangeLog.13 for
details.

From-SVN: r20808
1998-06-29 15:40:49 -06:00
Mark Mitchell
1d22a2c164 cse.c (cse_basic_block): Don't include NOTE insns in the count that is used to decide whether or not it...
* cse.c (cse_basic_block): Don't include NOTE insns in the count
	that is used to decide whether or not it is time to erase the
	equivalence table.

From-SVN: r20548
1998-06-17 20:20:21 +00:00
Kaveh R. Ghazi
50b2596f67 Warning fixes:
* Makefile.in (varasm.o): Depend on dbxout.h.
	(cse.o): Depend on toplev.h and output.h.
	(gcse.o): Depend on output.h.
	* mips.c: Include system.h and toplev.h and remove redundant code.
	Include output.h after tree.h so all its prototypes get activated.
	* mips.md (table_jump): Remove unused variable `dest'.
	* sparc.h: Add prototype for `v8plus_regcmp_op'.
	* crtstuff.c (fini_dummy, init_dummy): Mark function definitions
	with __attribute__ ((__unused__)).
	(__frame_dummy): Provide prototype before use, wrap it with
	EH_FRAME_SECTION_ASM_OP.
	* cse.c: Move inclusion of <setjmp.h> above local headers.
  	Include toplev.h and output.h.
	* dbxout.h: Add prototype for `dbxout_begin_function'.
	* final.c (final_scan_insn): Wrap variable `max_skip' in macro
	ASM_OUTPUT_MAX_SKIP_ALIGN.
	* gcse.c: Include system.h and output.h.
	(dump_cuid_table, dump_rd_table, dump_cprop_data, dump_pre_data):
	Make extern instead of static.
	(compute_can_copy): Only declare variables `reg' and `insn' when
 	AVOID_CCMODE_COPIES is not defined.
	(record_set_info): Mark parameter `setter' with ATTRIBUTE_UNUSED.
	(hash_scan_clobber): Likewise for `x' and `insn'.
	(hash_scan_call): Likewise.
	(record_last_set_info): Likewise for `setter'.
	(mark_call): Likewise for `pat'.
	(pre_insert_insn): Wrap variable `note' in macro HAVE_cc0.
	* libgcc2.c (__bb_init_prg): Replace bzero with memset and fix the
 	length parameter so that it multiplies the number of elements by
 	the sizeof(element).
	* output.h: Add prototype for `weak_finish'.
	* recog.h: Likewise for `validate_replace_src'.
	* rtl.h: Likewise for `optimize_save_area_alloca',
 	`fix_sched_param', `purge_addressof', `gcse_main',
 	`regmove_optimize', `dbr_schedule', `branch_prob' and
 	`end_branch_prob'.
	* toplev.h: Likewise for `set_float_handler' and
 	`output_quoted_string'.
	* varasm.c: Include dbxout.h.

From-SVN: r20351
1998-06-08 18:30:27 +00:00
Andreas Schwab
7a87758dfb m68k.h: Declare more functions used in macros.
* m68k.h: Declare more functions used in macros.
        (REG_CLASS_CONTENTS): Completely embrace initializer.
        * m68k.md (adddi3, subdi3): Add abort call to avoid warning
        about returning no value.
        * cse.c (find_best_addr): Declare p and found_better only if
        needed.
        * dbxout.c (dbxout_continue): Define only if DBX_CONTIN_LENGTH > 0.
        * dwarfout.c (string_length_attribute): #if 0 away.
        * function.c (expand_function_end): Define varible blktramp only
        if needed.
        * jump.c (find_insert_position): Define only if !HAVE_cc0.
        * loop.c (combine_givs_p): Define variable tem only if needed.
        * real.c: Comment out unused functions eabs, eround,
        e{24,53,64,113}toasc and eiinfin.

From-SVN: r19998
1998-05-23 17:14:57 -06:00
Kaveh R. Ghazi
d6f4ec5199 Warning fixes:
* Makefile.in (c-lang.o): Depend on c-tree.h, c-lex.h and toplev.h.
	(c-lex.o): Depend on output.h.
	(c-common.o): Likewise.
	(stmt.o): Likewise.
	(calls.o): Likewise.
	(integrate.o): Depend on toplev.h.
	(regclass.o): Depend on output.h.
	(final.o): Depend on reload.h.
	* c-common.c: Include output.h.
	(check_format_info): Remove unused variable `integral_format'.
	* c-decl.c (print_lang_decl): Mark parameters `file', `node' and
	`indent' with ATTRIBUTE_UNUSED.
	(print_lang_type): Likewise.
	(maybe_build_cleanup): Likewise for parameter `decl'.
	(copy_lang_decl): Likewise for parameter `node'.
	* c-lang.c: Include c-tree.h, c-lex.h and toplev.h.
	(lang_print_xnode): Mark parameters `file', `node' and `indent'
 	with ATTRIBUTE_UNUSED.
	(lookup_interface): Likewise for parameter `arg'.
	(is_class_name): Likewise.
	(maybe_objc_check_decl): Likewise for parameter `decl'.
	(maybe_objc_comptypes): Likewise for parameters `lhs', `rhs' and
	`reflexive'.
	(maybe_objc_method_name): Likewise for parameter `decl'.
	(build_objc_string): Likewise for parameters `len' and `str'.
	* c-lex.c: Include output.h.
	* c-lex.h (position_after_white_space): Correct typo in prototype.
	* c-tree.h (finish_file, c_expand_start_cond, c_expand_start_else,
 	c_expand_end_cond, init_iterators): Add prototypes.
	* caller-save.c (set_reg_live): Mark parameters `reg' and `setter'
	with ATTRIBUTE_UNUSED.
	* calls.c: Include output.h.
	* cccp.c (pipe_closed): Mark parameter `signo' with
 	ATTRIBUTE_UNUSED.
	* combine.c: Move inclusion of expr.h to after insn-config.h.
	* iris6.h (ASM_IDENTIFY_GCC, ASM_IDENTIFY_LANGUAGE): Don't define
	as empty, rather define as ((void)0).
	* sparc.c (sparc_check_64): Add braces around ambiguous `else'.
	Add parentheses around assignment used as truth value.
	* cplus-dem.c (squangle_mop_up): Change return type to void.
	(internal_cplus_demangle): Remove unused parameter `options'.
	All callers changed.
	(cplus_demangle_opname): Remove function wide variable `int i' and
 	replace with `size_t i' at each location where it is used.
	(cplus_demangle_opname): change type of `i' from int to size_t.
	* cppexp.c (right_shift): Mark parameter `pfile' with
	ATTRIBUTE_UNUSED.
	* cpphash.c (cpp_lookup): Likewise.
	(cpp_hash_cleanup): Likewise.
	* cpplib.c (parse_name): Add a prototype and make it static.
	(null_underflow): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
	(null_cleanup): Likewise for parameters `pbuf' and `pfile'.
	(macro_cleanup): Likewise for parameter `pfile'.
	(file_cleanup): Likewise.
	* cpplib.h (cpp_reader_init, cpp_options_init, cpp_start_read,
 	cpp_read_check_assertion, skip_rest_of_line): Add prototypes.
	* crtstuff.c (force_to_data, __CTOR_LIST__, force_to_data,
	__DTOR_END__, __FRAME_END__): Mark with ATTRIBUTE_UNUSED.
	* cse.c (cse_check_loop_start): Mark parameter `set' with
 	ATTRIBUTE_UNUSED.
	* dbxout.c (flag_minimal_debug, have_used_extensions,
	source_label_number): Move inside macro wrapper check against
	defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO).
	* dwarf2out.c (gen_entry_point_die): Hide prototype and definition.
	* except.h (doing_eh): Provide prototype.
	* expr.c: Move inclusion of expr.h to after insn-config.h.
	* final.c: Include reload.h.
	(shorten_branches): Cast the first argument of bzero to char *.
	* fix-header.c (cpp_print_containing_files): Mark parameter
 	`pfile' with ATTRIBUTE_UNUSED.
	(cpp_fatal): Likewise.
	* flow.c (find_basic_blocks_1): Cast the first argument of bzero
	to char *.
	* genattrtab.c (make_length_attrs): Change the type of variable
	`i' from int to size_t.
	(zero_fn): Mark parameter `exp' with ATTRIBUTE_UNUSED.
	(one_fn): Likewise.
	* genextract.c (main): When generating insn-extract.c, mark
	variable `junk' with ATTRIBUTE_UNUSED.
	* gengenrtl.c (gencode): When generating genrtl.c, cast the first
	argument of bzero to char*.
	* integrate.c: Include toplev.h.
	* libgcc2.c: Wrap `struct exception_table' and
	`find_exception_handler' in macro DWARF2_UNWIND_INFO.
	* objc/Make-lang.in (objc-act.o): Depend on toplev.h.
	* objc/objc-act.c: Include toplev.h.
	(lang_print_xnode): Mark parameters `file', `node' and `indent'
	with ATTRIBUTE_UNUSED.
	(finish_protocol): Likewise for parameter `protocol'.
	* output.h (declare_weak): Add prototype.
	(decode_reg_name): Don't wrap with TREE_CODE macro.
	(assemble_alias): Add prototype.
	* regclass.c: Include output.h.
	* reload.h (reloads_conflict): Add prototype.
	* rtl.h (print_rtl_single, mark_elimiation, reg_class_subset_p,
	output_func_start_profiler): Add prototypes.
	* rtlanal.c (reg_set_p_1): Mark parameters `x' and `pat' with
 	ATTRIBUTE_UNUSED.
	* scan-decls.c: Include scan.h.
	* scan.h (recognized_function, recognized_extern): Add prototypes.
	* stmt.c: Include output.h.
	* toplev.c (error_for_asm, warning_for_asm): Remove prototypes.
	(output_lang_identify): Hide prototype and definition.
	(float_signal): Mark parameter `signo' with ATTRIBUTE_UNUSED.
	(pipe_closed): Likewise.
	* toplev.h (count_error, strip_off_ending, error_for_asm,
 	warning_for_asm): Add prototypes.

From-SVN: r19712
1998-05-13 12:40:39 +00:00
Jeff Law
38e012594e typo typo fixes fixes
From-SVN: r19601
1998-05-06 15:09:07 -06:00
J"orn Rennecke
e89d3e6faf cse.c (cse_set_around_loop): Don't do optimization when new pseudos are created.
* cse.c (cse_set_around_loop): Don't do optimization when
	new pseudos are created.

From-SVN: r19404
1998-04-24 14:03:42 +01:00
Jeffrey A Law
c6a26dc45d cse.c (count_reg_usage): Correctly handle REG_NONNEG notes.
* cse.c (count_reg_usage): Correctly handle REG_NONNEG notes.
        (delete_trivially_dead_insns): Renamed from delete_dead_from_cse.
        * toplev.c (rest_of_compilation): Call delete_trivially_dead_insns
        instead of delete_dead_from_cse.  Also call delete_trivially_dead_insns
        between loop optimization passes.
        * rtl.h: Updated appropriately.

From-SVN: r19100
1998-04-10 18:28:07 -06:00
Jeff Law
e5e809f419 * Check in merge from gcc2. See ChangeLog.11 and ChangeLog.12
for details.

        * haifa-sched.c: Mirror recent changes from gcc2.

From-SVN: r18984
1998-04-04 06:32:39 -07:00
Jeffrey A Law
47a0b68fb6 * cse.c (rtx_cost): Only call CONST_COSTS if it is defined.
From-SVN: r18787
1998-03-23 15:55:04 -07:00
Kaveh R. Ghazi
670ee92097 Major cutover to using system.h:
* Makefile.in (alias.o, bitmap.o, c-aux-info.o, c-common.o,
        c-decl.o, c-iterate.o, c-lang.o, c-lex.o, c-pragma.o, c-typeck.o,
        caller-save.o, calls.o, collect2.o, combine.o, cse.o, dbxout.o,
        dwarf2out.o, dwarfout.o, emit-rtl.o, except.o, explow.o, expmed.o,
        expr.o, final.o, flow.o, function.o, getpwd.o, global.o,
        integrate.o, jump.o, local-alloc.o, loop.o, optabs.o, pexecute.o,
        prefix.o, print-rtl.o, print-tree.o, profile.o, real.o, recog.o,
        reg-stack.o, regclass.o, regmove.o, reload.o, reload1.o, reorg.o,
        rtl.o, rtlanal.o, sdbout.o, stmt.o, stor-layout.o, stupid.o,
        tlink.o, toplev.o, tree.o, unroll.o, varasm.o, xcoffout.o): Depend
        on system.h.
        * alias.c, bitmap.c, c-aux-info.c, c-common.c, c-decl.c,
        c-iterate.c, c-lang.c, c-lex.c, c-pragma.c, c-typeck.c,
        caller-save.c, calls.c, collect2.c, combine.c, cse.c, dbxout.c,
        dwarf2out.c, dwarfout.c, emit-rtl.c, except.c, explow.c, expmed.c,
        expr.c, final.c, flow.c, function.c, gcc.c, getpwd.c, global.c,
        integrate.c, jump.c, local-alloc.c, loop.c, optabs.c, pexecute.c,
        prefix.c, print-rtl.c, print-tree.c, profile.c, real.c, recog.c,
        reg-stack.c, regclass.c, regmove.c, reload.c, reload1.c, reorg.c,
        rtl.c, rtlanal.c, sched.c, sdbout.c, stmt.c, stor-layout.c,
        stupid.c, tlink.c, toplev.c, tree.c, unroll.c, varasm.c,
        xcoffout.c: Include system.h.  Organize include ordering so
        that stdarg/varargs comes before other system headers.  Remove
        spurious casts of functions assured of a prototype in system.h.

From-SVN: r18726
1998-03-20 14:58:42 +00:00
Kaveh R. Ghazi
8625fab57c Warning fixes, resulting in the addition of a new target macro:
* tm.texi (DEFAULT_RTX_COSTS): Document new macro.
        * arm.h (DEFAULT_RTX_COSTS): Define instead of RTX_COSTS.
        * cse.c (rtx_cost): Provide a default case in an enumeration
        switch, and call DEFAULT_RTX_COSTS if it's defined.

Co-Authored-By: Nick Clifton <nickc@cygnus.com>
Co-Authored-By: Richard Earnshaw <rearnsha@arm.com>

From-SVN: r18513
1998-03-12 12:32:24 +00:00
Kaveh R. Ghazi
5172371191 Fix warious warnings:
* c-aux-info.c: Include string.h/strings.h.
	* pa.c: Include stdlib.h.
	(pa_combine_instructions): Prototype the function.
	(pa_can_combine_p, forward_branch_p, shadd_constant_p): Likewise.
	(reloc_needed): Add default case for enumeration switch.
	(remove_useless_addtr_insns): Remove unused variable `all'.
	(hppa_expand_prologue): Add explicit braces to avoid
	ambiguous `else'.
	(output_function_epilogue): Remove unused variable `i'.
	(output_millicode_call): Remove unused variable `link'.
	(shadd_constant_p, forward_branch_p): Make the function static.
	(following_call): Explicitly declare to return int.
	(pa_reorg): Declare as void.
	(pa_combine_instructions): Declare as static void.  Add
	parentheses around && within ||.
	* pa.h: Add prototypes for pa_reorg, symbolic_operand,
	following_call, function_label_operand, lhs_lshift_cint_operand
	and zdepi_cint_p.
	* pa.md: Add parentheses around && within ||.
	* cppalloc.c: Include stdlib.h.
	* cpperror.c (cpp_print_containing_files): Remove unused variable
	`i'.  Fix format specifier in fprintf.
	* cse.c (cse_around_loop): Add explicit braces to avoid
	ambiguous `else'.
	(delete_dead_from_cse): Wrap variable `tem' in macro HAVE_cc0.
	* expr.c (expand_expr): Add parentheses around && within ||.
	* final.c (app_enable): Replace fprintf with fputs where there are
	no format specifiers and no trailing argument after the string.
	Eg, when printing ASM_APP_ON/ASM_APP_OFF.
	(app_disable): Likewise.
	(final_end_function): Likewise.
	(final_scan_insn): Likewise.  Remove unused variable `set'.
	(profile_function): Wrap empty if-statement body in {} brackets.
	* function.c: Include stdlib.h.
	(pad_below): Wrap prototype and definition in ARGS_GROW_DOWNWARD.
	(reposition_prologue_and_epilogue_notes): Add parentheses
	around assignment used as truth value.
	* integrate.c (expand_inline_function): Wrap variable
	`cc0_insn' in macro HAVE_cc0.
	* jump.c (jump_optimize): Wrap variable `q' in macro
	HAVE_cc0.  Remove unused variable `prev1'.
	* libgcc2.c (__bb_exit_trace_func): Add parentheses around &&
	within ||.  Fix format specifier in fprintf.
	(__bb_init_prg): Add parentheses around assignment used as
	truth value.
	* local-alloc.c: Include stdlib.h.
	(requires_inout): Add parentheses around assignment used
	as truth value.
	* loop.c (analyze_loop_iterations): Wrap prototype and definition
	in macro HAVE_decrement_and_branch_on_count.
	(insert_bct, instrument_loop_bct): Likewise.
	(move_movables): Add parentheses around assignment used as
	truth value.
	(consec_sets_invariant_p): Likewise.
	(maybe_eliminate_biv_1): Wrap variable `new' in macro HAVE_cc0.
	* objc/objc-act.c: Include stdlib.h.
	(lookup_method_in_protocol_list): Wrap empty else-statement body
	in braces.
	(lookup_protocol_in_reflist): Likewise.
	(objc_add_static_instance): Remove unused variables `decl_expr'
	and `decl_spec'.
	(get_objc_string_decl): Remove unused variable `decl'.
	(generate_static_references): Remove unused variables `idecl' and
	`instance'.
	(check_protocols): Wrap empty else-statement body in braces.
	* protoize.c: Include stdlib.h.
	(substr): Add parentheses around assignment used as truth value.
	(abspath): Likewise.
	(shortpath): Likewise.
	* regmove.c (fixup_match_1): Add parentheses around assignment
	used as truth value.
	* reload.c (push_secondary_reload): Remove unused variable `i'.
	(find_reloads): Add parentheses around assignment used as truth
	value.
	* reload1.c: Include stdlib.h.
	* rtl.h: Correct typo in prototype of offsettable_memref_p.
	* stmt.c (add_case_node): Add parentheses around assignment used
	as truth value.
	(case_tree2list): Likewise.
	* tree.c (valid_machine_attribute): Wrap variable `decl_attr_list'
	in macro VALID_MACHINE_DECL_ATTRIBUTE.  Wrap variable
	`type_attr_list' in macro VALID_MACHINE_TYPE_ATTRIBUTE.
	(merge_attributes): Add explicit braces to avoid ambiguous
	`else'.
	* unroll.c (copy_loop_body): Wrap variable `cc0_insn' in
	macro HAVE_cc0.
	* varasm.c: Include stdlib.h.

From-SVN: r18290
1998-02-28 07:06:53 +00:00
Jeffrey A Law
614bb5d45d cse.c (delete_dead_from_cse): If a libcall produces a constant result and that result can be substituted into...
* cse.c (delete_dead_from_cse): If a libcall produces a constant
        result and that result can be substituted into SET_SRC of the
        insn with the REG_RETVAL note, then perform the substitution
        and delete the libcall.

From-SVN: r17871
1998-02-12 07:26:47 -07:00
Jeff Law
2d8b0f3ada c-lex.c: Include <stdlib.h> and <string.h>/<strings.h>.
a
	* c-lex.c: Include <stdlib.h> and <string.h>/<strings.h>.  Add
	prototype for `handle_sysv_pragma', and make it static.  Add
	parentheses around assignment used as truth value.
	* combine.c (combine_instructions): Protect variable `prev' with
	macro HAVE_cc0.
	(can_combine_p): Protect variable `link' with AUTO_INC_DEC.
	(extract_left_shift): Add parentheses around operand of &.
	(merge_outer_ops): Avoid an empty body in an else-statement.
	(gen_rtx_combine): Remove unused variable `i'.
	* sparc/gmon-sol2.c: Include <fcntl.h>.  Make return type of
        function monstartup `void'.  Likewise for internal_mcount.  Add
        `static void' prototype for moncontrol.  Reconcile sprintf format
        vs. args.
	* sparc/sparc.c: Include <stdlib.h> and <string.h>/<strings.h>.
	Make return type of function_arg_slotno explicitly `int'.
	(reg_unused_after): Add	parentheses around assignment used as
	truth value.
	(save_regs): Add explicit braces to avoid ambiguous `else'.
	(function_arg_slotno): Add parentheses around && within ||.
	(function_arg_pass_by_reference): Likewise.
	(sparc_flat_output_function_prologue): Reconcile fprintf format
	vs. args.
	* svr4.h (ASM_OUTPUT_LIMITED_STRING): Add parentheses around
	assignment used as truth value.
	* cplus-dem.c: Include <stdlib.h>.
	(demangle_signature): Avoid an empty body in an else-statement.
	(do_type): Remove unused variable `lvl'.
	* cppexp.c: Don't have <stdlib.h> depend on MULTIBYTE_CHARS.
	Include <string.h>/<strings.h>.
	(cpp_lex): Remove unused variable `namelen'.
	(cpp_lex): Explicitly declare `num_chars' as an int.
	* cpplib.c: Avoid duplicate inclusion of <stdlib.h>, include
	<unistd.h> instead.  Explicitly declare is_system_include
	returning int.
	(make_assertion): Remove unused variable `kt'.
	(cpp_expand_to_buffer): Hide variable `obuf'.
	(output_line_command): Remove unused variables, `line_end',
	`line_cmd_buf' and `len'.
	(macarg): Remove unused variable `arg_start'.
	(special_symbol): Remove unused variable `i'.  Add parentheses
	around assignment used as truth value.
	(do_include):  Remove unused variables `pcfname' and `retried',
	hide `pcf' and `pcfbuflimit'.
	(do_line): Remove unused variable `i'.
	(finclude): Hide variable `missing_newline'.
	(cpp_handle_options): Remove unused variable `j'.
	(read_token_list): Remove unused variable `eofp'.
	(cpp_error_with_line): Remove unused variable `i'.
	(cpp_warning_with_line): Likewise.
	(cpp_pedwarn_with_line): Explicitly declare `column' as int.
	(cpp_error_from_errno): Remove unused variable `i'.
	* cse.c (invalidate): Add parentheses around assignment used as
	truth value.
	(find_best_addr): Move declaration of variable `our_cost' inside
	the conditional macro where its used.
	(fold_rtx): Avoid an empty body in an if-statement.
	(cse_insn): Wrap variables  `this_insn_cc0_mode' and
	`this_insn_cc0' in macro HAVE_cc0.
	* dwarf2out.c: Include <stdlib.h> and <string.h>/<string.h>.
	(ASM_OUTPUT_DWARF_DATA8):  Reconcile format vs. args in fprintf's.
	(output_uleb128): Likewise.
	(output_sleb128): Likewise.
	(output_cfi): Likewise.
	(output_call_frame_info): Remove unused variables `j', `fde_size'
	and `fde_pad'.
	(comp_unit_has_inlines): Hide declaration as per rest of file.
	(size_of_line_prolog): Correct typo in prototype.
	(add_arange): Likewise.
	(output_aranges): Likewise.
	(add_name_and_src_coords_attributes): Likewise.
	(gen_array_type_die): Likewise.
	(gen_inlined_subroutine_die): Likewise.
	(equate_decl_number_to_die): Remove unused variable `i'.
	(print_die): Reconcile format vs. args in fprintf's.
	(print_dwarf_line_table): Likewise.
	(output_die): Likewise.
	(output_line_info): Likewise.
	(add_subscript_info): Avoid an empty body in an else-statement.
	(gen_subprogram_die): Remove unused variable `fp_loc'.
	* dwarfout.c: Explicitly declare `next_pubname_number' as int.
	Protect `ordering_attribute' prototype with USE_ORDERING_ATTRIBUTE
	macro.  Protect `src_coords_attribute' prototype with
	DWARF_DECL_COORDINATES macro.  Hide `output_entry_point_die'
	prototype as in the rest of the file.  Likewise for
	`output_pointer_type_die' and `output_reference_type_die'.  Remove
	prototype for `type_of_for_scope'.
	(output_unsigned_leb128): Reconcile format vs. args in fprintf.
	(type_attribute): Add explicit braces to avoid ambiguous `else'.
	* final.c: Include <stdlib.h> and <string.h>/<strings.h>.
	(shorten_branches): Protect declaration of tmp_length with
	SHORTEN_WITH_ADJUST_INSN_LENGTH and ADJUST_INSN_LENGTH macros.
	(profile_function): Protect declaration of `sval' and `cxt'
	variables with appropriate macros.
	(final_scan_insn): Likewise for `note' variable.  Add explicit
	braces to avoid empty body in an if-statement.
	(output_asm_insn): Move variable `i' inside macro conditional
	where it is used.  Add parentheses around assignment used as truth
	value.
	(asm_fprintf) Likewise, likewise.
	* fix-header.c (main): Remove unused variable `done'.  Protect
	declaration of `i' with FIXPROTO_IGNORE_LIST.
	* pexecute.c: Include <unistd.h>.  Prototype `my_strerror'.
	* print-rtl.c (print_inline_rtx): Explicitly declare the parameter
	`ind'.
	* profile.c: Include <string.h>/<strings.h>.
	(instrument_arcs): Remove unused variables `note', `inverted',
	`zero' and `neg_one'.
	(branch_prob): Avoid empty body in an if-statement.
	* regclass.c: Include <stdlib.h>.
	(reg_alternate_class): Explicitly declare parameter `regno'.
	* regmove.c (regmove_optimize): Remove unused variable `p'.  Add
	parentheses around assignment used as truth value.
	(find_matches):  Remove unused variables `output_operand' and
	`matching_operand'.
	(fixup_match_1): Remove statement with no effect: "if (0) ;".
	* scan.c (sstring_append): Explicitly declare `count' as int.
	(scan_string): Explicitly declare parameter `init' as int.
	* sched.c: Include <stdlib.h>.
	(BLOCKAGE_RANGE): Add parentheses around arithmetic in operand of |.
	(rank_for_schedule): Add parentheses around assignment used as
	truth value.
	(schedule_block): Likewise.
	(regno_use_in): Likewise.
	(schedule_insns): Remove unused variable `i'.
	* toplev.c: Include <stdlib.h> and <string.h>/<strings.h>.
	(v_message_with_decl): Remove unused variable `n'.
	(botch): Explicitly declare parameter `s' as char *.
	(main): Add parentheses around assignment used as truth value.
	* tree.c (make_node): Protect the variable `kind' with the
	GATHER_STATISTICS macro.
	(real_value_from_int_cst): Move variable `e' inside conditional
	macro area where it is used.
	(tree_last): Add parentheses around assignment used as truth value.
	(build1): Protect the variable `kind' with the GATHER_STATISTICS
	macro.
	(print_obstack_statistics): Reconcile format vs. args in fprintf.
	Protect variables `i', `total_nodes', and `total_bytes' with the
	GATHER_STATISTICS macro.
Lots more -W -Wall warnings disappear.

From-SVN: r17515
1998-01-27 15:11:37 -07:00