changelog.1

早期freebsd实现

	* machmode.def: Delete unused modes.

	* stor-layout.c (mode_for_size): Accepts mode class as arg.
	Calls changed.
	(layout_type): Can now use mode_for_size for floating types.

	* stor-layout.c (layout_type): Get mode of function type from size.
	* c-decl.c, cplus-decl.c (grokdeclarator): Don't worry about
	mode of a function type.
	* calls.c (prepare_call_address): No values contain static chains.

	* tree.h (struct tree_decl, struct tree_common): Rename the flag bits.
	* cplus-tree.h: References here changed.

	* tree.h (DECL_BIT_FIELD): New macro, with new flag.
	* print-tree.c: Print it.
	* stor-layout.c (layout_decl): Use on input instead of TREE_PACKED.
	Clear it if field happens to be aligned.
	* expr.c, tree.c, varasm.c, symout.c, objc-actions.c, c-typeck.c:
	Use this to distinguish bit-fields.
	* c-decl.c, cplus-class.c (finish_struct): Set this for bit-fields.

	* c-typeck.c (build_binary_op): Make NON_LVALUE_EXPR, not NOP_EXPR.

	* out-sparc.c (find_addr_reg): Avoid using frame pointer. 

	* config.gcc: Delete all formfeeds from Makefile.

	* stor-layout.c (layout_decl): Delete `bitsize'.
	(layout_record): Test size for CONST_INT, not TREE_LITERAL.
	(layout_type): Simplify array case.

	* fold-const.c (size_binop): Division not special case.

Wed Apr 18 16:05:23 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* c-typeck.c (datatype): Function deleted.
	(build_binary_op_nodefault, pointer_int_sum, pointer_diff):
	Don't use it.
	* cplus-typeck.c (build_binary_op_nodefault, pointer_int_sum):
	(pointer_diff): Likewise.
	(convert_for_assignment): Likewise.  Took some work.
	(datatype): Function deleted.

	* c-typeck.c (common_type): Renamed from commontype.
	(function_types_compatible_p): New function.
	(compparms): Deleted.
	(self_promoting_args_p): Renamed from compparms1.
	* cplus-typeck.c (common_type, self_promoting_args_p): Likewise.
	* c-typeck.c (build_function_call): Eliminate local value_type.

	* c-typeck.c (parser_build_binary_op): Detect +/- within boolean.

	* c-typeck.c (convert_arguments): Renamed from actualparameterlist.
	Push results on front, and reverse at end.
	* cplus-typeck.c: Likewise.  All calls changed.

	* tree.h (STMT_BIND_SIZE): Deleted.
	(struct tree_bind_stmt): Deleted that slot.
	* tree.c (build_let_stmt): Don't set it.

	* print-tree.c (print_node): Call print_lang_identifier.
	* c-decl.c, cplus-ptree.c (print_lang_identifier): New function.

	* gnulib2.c (__clear_cache): New function.

Tue Apr 17 16:57:17 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* cplus-tree.c (build_member_type): Use TYPE_HASH, not TREE_UID.
	(TYPE_HASH): Use the address.  Delete the duplicate definition.

	* c-typeck.c (build_unary_op): Bug in pedantic warning about ++.

	* tree.h (TYPE_SEP, TYPE_SEP_UNIT): Deleted.
	* stor-layout.c (layout_type): Don't set them.
	(mode_for_size): New name for agg_mode; code cleaned up.
	* c-tree.h (C_TYPE_FIELDS_READONLY): Use TREE_LANG_FLAG_1.

	* fold-const.c (size_int, size_binop): New names for build_int
	and genop, moved here.  All callers changed.
	(const_binop): New name for combine, and now static.
	* stmt.c (expand_end_case, group_case_nodes, node_has_low_bound):
	(node_has_high_bound): Don't call `combine' directly.

	* tree.h (DECL_VOFFSET, DECL_VOFFSET_UNIT): Deleted.
	* tree.c (staticp): Don't use DECL_VOFFSET.
	* stor-layout.c (layout_*): Don't use it or set it.
	(layout_record): Simplify: Keep all sizes in units of 1.

	* tree.c (debug_tree, print_node, print_node_brief, indent_to):
	New functions to print a tree.
	* c-decl.c (print_lang_decl, print_lang_type): Define as no-op.
	* cplus-ptree.c (print_lang_type): Complete rewrite.
	Most other functions deleted.
	* tree.c (print_node): Call print_lang_* unconditionally.

	* tree.c (TYPE_HASH): Now use the address.

Mon Apr 16 16:27:28 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* final.c: Check LEAF_REGISTERS, not LEAF_REGS.

	* real.h (*_FLOAT_FORMAT): Change enums to macros.
	(REAL_INFINITY): Define it if IEEE format.

	* c-decl.c (c_decode_options): Handle -Wconversion here.
	* toplev.c (main): Not here.

	* tm-*.h (INITIAL_FRAME_POINTER_OFFSET): Count get_frame_size.

Mon Apr 16 15:05:49 1990  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

	* loop.c (eliminate_biv): Build COMPARE with VOIDmode, not mode
	of operands.

Mon Apr 16 14:55:58 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* jump.c: Include real.h.

Sun Apr 15 20:30:24 1990  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

	* c-typeck.c (pedantic_lvalue_warning): New function.
	(build_component_ref): Handle COMPOUND_VALUE and COND_EXPR by moving
	reference inside it and calling pedantic_lvalue_warning.
	(build_unary_op): Incrementing a cast-expression is warning, not
	error; call new pedantic_lvalue_warning.
	(unary_complex_lvalue): Use of compound or conditional expression as
	lvalue is warning, not error.
	(build_modify_expr): Likewise.
	* cplus-typeck.c: Likewise.

Sun Apr 15 12:27:11 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* cse.c (fold_rtx, fold_cc0): Check TARGET_FLOAT_FORMAT,
	not FLOAT_NOT_IEEE.
	* jump.c (jump_back_p): Likewise.  FLOAT_NOT_IEEE is now gone.

	* cccp.c (collect_expansion): Handle warn_stringify.
	(main): Set it for -Wtraditional.

	* function.c (init_function_start):
	Set current_function_returns_pointer here.
	(expand_function_start): Not here.

	* expr.c (emit_library_call): Precompute reg and partial of all parms,
	to do it in proper order.

	* final.c (final_scan_insn): Typo in deleting obvious no-ops.

	* expr.c (emit_push_insn): Change #if to ordinary if.

Sat Apr 14 13:20:40 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* expr.c (do_jump): In COMPONENT_REF, check TYPE is nonzero.

	* tm-i386.h (ASM_OUTPUT_ADDR_DIFF_ELT): Delete spurious `abort ()'.

	* emit-rtl.c (reverse_comparison): New function.
	(get_last_insn_anywhere): New function.
	* i386.md (ble, blt): New define_expands.

	* Makefile.in (LANGUAGES): New parameter chooses languages to build.
	(native): Use that.
	(c, c++, objc): Targets for use in LANGUAGES.

	* Makefile.in (install): Split up.
	(install-cross, install-headers, install-gnulib, install-proto):
	(install-man, $(libsubdir)): New targets.

	* Makefile.in (native): New target, split from start.encap.
	(tmpgnulib): Split out from gnulib.portable.
	(gnulib.convert): Makes tmpgnulib, then converts.
	(LIBCONVERT): New parameter.
	(GCC_FOR_TARGET): New parameter.
	(hard-params.o, hard-params, stamp-gnulib2): Use that.

	* cse.c (fold_cc0): Compare equivalence classes of non-constants.
	Waiting for papers from Steven McCanne.

Fri Apr 13 14:12:46 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* stor-layout.c (layout_type): If record is BLKmode because not
	aligned, set TREE_PACKED.  Don't force BLKmode due to field
	with TREE_PACKED. 

	* cse.c (fold_rtx): Use dconst1, not atof.
	* varasm.c (output_constant): Likewise.

	* c-parse.y (yylex): Handle SIGFPE in atof.

	* tm-tti68k.h: New file.

	* toplev.c, flags.h (flag_pretend_float): New flag.

	* regclass.c (reg_class_record): Handle `E' constraint, for float
	constants but only if can examine their bits.
	* reload.c (find_reloads): Likewise.
	* recog.c (constrain_operands): Likewise.
	* out-m68k.c (output_move_double): Abort on float constant
	if can't examine the bits.
	(standard_68881_constant_p): Fail if can't examine the bits.
	(standard_sun_fpa_constant_p): Likewise.

	* m68k.md (DFmode move recognizers): Use `E', not `F'.
	* tm-m68k.h (PREFERRED_RELOAD_CLASS): Handle float constants.

	* tm-next.h (ASM_OUTPUT_FLOAT, ASM_OUTPUT_FLOAT_OPERAND):
	(ASM_OUTPUT_DOUBLE, ASM_OUTPUT_DOUBLE_OPERAND): Use REAL_VALUE_ISINF.
	* tm-sun3.h, tm-sparc.h: Likewise.

	* xm-vax.h (HOST_FLOAT_FORMAT): Define it.
	* tm-vax.h (TARGET_FLOAT_FORMAT): Define it.

	* real.h (enum float_format): Define codes for formats.
	(HOST_FLOAT_FORMAT, TARGET_FLOAT_FORMAT): New macros, defaulted here.
	(REAL_IS_NOT_DOUBLE, REAL_VALUE_TYPE): Override if formats differ.
	(REAL_VALUE_ISINF): New macro.
	* xm-vax.h (isinf): Define as macro.

	* Makefile.in (LIBFUNCS_EXTRA): New variable.
	(gnulib.portable): Compile those files.

	* Makefile.in (AUX_OUTPUT2): New variable.
	(OBJS): Use it.
	(aux-output2.o): New target.

	* Makefile.in (RANLIB, RANLIB_TEST): New variables.

	* Makefile.in (AR_FLAGS, OLDAR_FLAGS): New variables.
	(gnulib.portable, stamp-gnulib2): Use them.

	* i386.md: Add patterns for `bt' insns.

Fri Apr 13 12:54:14 1990  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

	* c-decl.c (builtin_function): Now returns decl that was made.

	* config.gcc: Support both -host= and +host=.

Thu Apr 12 22:39:10 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* Changes from Data General.

	* syms.h: New file.
	* sdbout.c: Include that if not USG.

	* tree.h (enum built_in_function): Added BUILT_IN_STRCPY and
	BUILT_IN_STRCMP.
	* c-decl.c (init_decl_processing): Create additional pointer and
	function types.  Declare strcpy, strcmp, memcpy, memcmp built-in.
	* expr.c (expand_builtin): Support strcpy, strcmp, memcpy, memcmp.
	If special handler breaks out of switch, do library call.
	By default, print error message and do library call.
	(get_pointer_alignment, string_constant): New functions.

	* dbranch.c: Put entire contents in conditional on HAVE_DELAYED_BRANCH.
	(init_flags, enote): Clear and set memr.
	(enote): Don't move a store across a fetch.
	(insn_eligible_p): Check enote before volatility and dependencies.
	Check for volatility if memw or memr.
	(loads_from_mem_p): New function.

	* Makefile.in (dbranch.o): New target.
	(OBJS): Add dbranch.o.

Thu Apr 12 22:39:10 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* calls.c (expand_call): Count args in order written, with argpos.

Thu Apr 12 22:01:16 1990  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

	* expmed.c (synth_mult): Ensure OPS is always valid in returned alg.

	* local-alloc.c (block_alloc): If we have an operand that is an
	address, look inside it for registers to combine with.

	* reload.c (combine_reloads): If the output reload is for an
	earlyclobber operand, can't combine it.
	Try to use a register that dies in an insn for a single output reload
	if the insn has only one output.

Thu Apr 12 21:27:18 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* c-decl.c (duplicate_decls): Preserve DECL_INITIAL from old
	function def to new one.

Thu Apr 12 07:55:14 1990  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

	* expr.c (expand_assignment): Order of source and destination to
	bcopy/memcpy was reversed.

Wed Apr 11 17:29:18 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* tm-i386.h (ABC_REGS): New register class.
	(REG_CLASS_CONTENTS, REG_CLASS_NAMES, enum reg_class): Changed.
	* i386.md (divsi3, etc.): Exclude register d from constraints.

	* c-parse.y (save_filename, save_lineno): New nonterminals
	to record text location at start of statement.
	(lineno_stmt): New nonterminal, outputs line note before statement.
	(lineno_decl): Likewise for decl, to avoid conflicts.
	(stmt): Don't emit line notes at start of statement.
	(simple_if): Collect file and line using save_filename, save_lineno.

	* Changes from Data General.

	* cccp.c (main, do_include): Implement -H to print header names.

	* c-parse.y (component_decl_list): Parse even if final `;' missing.

Wed Apr 11 16:49:16 1990  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

	* gcc.c: Fix miscellaneous typos.

Wed Apr 11 12:59:57 1990  Richard Stallman  (rms at sugar-bombs.ai.mit.edu)

	* config.gcc: Typos in setting pass1done, testing it,
	and calling sed for usage msg.

	* cccp.c (macroexpand): Count Newline Space as part of whitespace
	sequence when stringifying.

	* expmed.c (expand_mult): Handle synth_mult returning no operations.