Merge in gcc2 snapshot 19980929. See gcc/ChangeLog and gcc/FSFChangeLog for

[thirdparty/gcc.git] / gcc / ChangeLog

Wed Jan 27 02:20:48 1999  Jeffrey A Law  (law@cygnus.com)

	* Merge gcc2 snapshot 19980929.

	* cccp.c (PRINTF_PROTO): Remove.
	(PRINTF_PROTO_{1,2,3,4}: Likewise.
	* cexp.y: Likewise.
	* system.h: Add PRINTF_PROTO and PRINTF_PROTO_{1,2,3,4}.

	* fix-header.c (cpp_file_lin_for_message): Delete.  In libcpp.
	(cpp_print_containing_files, v_cpp_message, cpp_message): Likewise.
	(cpp_fatal, cpp-Pfatal_with_name): Likewise.

	* gen-protos.c (hashf): Delete in cpphash.o
	* gen-protos.c (hashf): Delete in cpphash.o

	* expr.c: Do not merge SAVE_STACKAREA_MODE changes.
	* expmed.c: Likewise.
	* rs6000.md: Likewise.

	* rs6000.c, rs6000.md: Do not merge formatting changes yet.

Wed Jan 27 01:13:42 1999  Richard Henderson  <rth@cygnus.com>

	* rs6000.c (input_operand): Don't expect CONST around CONSTANT_P_RTX.
	* rs6000.md (movsi, movdi): Likewise.

Tue Jan 26 13:31:38 1999  Jim Wilson  <wilson@cygnus.com>

	* function.c (expand_function_end): Pass arg_pointer_save_area to
	validize_mem before using it.  Emit code into a sequence.

Tue Jan 26 13:41:38 1999  David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.md (doz + set cr and or + set cr patterns): Add missing
	'#' to split patterns.  Correct indentation of some new patterns.

1999-01-26 12:11 -0500  Zack Weinberg  <zack@midnite.ec.rhno.columbia.edu>

	* cppfiles.c (safe_read): Deleted.  
	(read_and_prescan): New function, replaces safe_read, converts
	and/or warns about trigraphs, silently converts odd line
	terminators (\r, \n\r, \r\n).  Warns about no newline at EOF.
	(finclude): Use read_and_prescan; turn off nonblocking mode on
	the input descriptor; remove file-size-examination and
	no-newline-at-EOF gunk which is	longer necessary; be more
	careful about checking that we've been handed a legitimate
	file to read (only real files, pipes, and ttys are acceptable).
	* cpplib.h (cpp_options): Rename no_trigraphs flag to 
	`trigraphs' and invert its sense.
	(trigraph_table): Declare.
	(cpp_warning_with_line): Prototype.
	* cpplib.c: Remove all references to trigraph_pcp. Define
	trigraph_table; initialize it in initialize_char_syntax.  Open
	files in nonblocking mode.  s/no_trigraphs/trigraphs/
	throughout, and invert sense.  Put cpp_warning_with_line back
	in and export it.

Tue Jan 26 23:21:49 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (COUNTER_REGS): New register class.
	* config/c4x/c4x.md (*rptb_init): Change constraints.
	(rptb_end): Emit alternate looping instructions if 
	RC register not allocated for loop counter.
	(decrement_and_branch_on_count): Allow other registers
	for loop counter.

1999-01-25 14:26 -0500  Zack Weinberg  <zack@rabi.columbia.edu>

	* cppexp.c (struct arglist): Removed.
	(parse_number): Use HOST_WIDE_INT for the accumulator.
	Allow two `l' suffixes unless C89.  Clean up.  Make static.
	(parse_charconst): New function broken out of cpp_lex.
	Code cleaned up drastically.  Don't use a token_buffer.
	(token_buffer): Removed.
	(cpp_lex): Don't call parse_number on a constant string.
	Use parse_charconst.
	(cpp_parse_expr): Properly handle an ERROR op returned by
	cpp_lex. 

1999-01-25 14:10 -0500  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* cpplib.c: Don't include signal.h, sys/times.h, or
	sys/resource.h. Don't declare localtime.
	(macroexpand): Handle special symbols here.
	(push_macro_expansion): Chop off the trailing '@ ' if possible
	here.
	(cpp_get_token): Don't do either of the above two things here.
	Move `string' label just after case '"' so that wide strings
	don't crash the preprocessor.

Sun Jan 24 20:13:45 1999  David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.md (left shift + set cr patterns): Add missing '#' to
	split patterns.
	(move register + set cr pattern): Ditto.
	(movdi, !TARGET_POWERPC64 splitters): Add back in Jan. 15th patch,
	inadvertently deleted.

Sun Jan 24 08:07:59 1999  Jeffrey A Law  (law@cygnus.com)

	* stmt.c (stmt_loop_nest_empty): New function.
	* tree.h (stmt_loop_nest_empty): Declare it.
	* rtl.def (CALL_PLACEHOLDER): New rtx code.

Sun Jan 24 21:24:43 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_emit_move_sequence, c4x_encode_section_info):
	New functions.
	(c4x_check_legit_addr): Remove USE and PLUS, allow
	LO_SUM, and disable SYMBOL_REF, LABEL_REF, and CONST cases.
	(c4x_legitimize_address): Penalise SYMBOL_REF, LABEL_REF, and 
	CONST cases.  Add LO_SUM.
	(c4x_print_operand): Modified 'C' and 'R' cases for calls.
	Added 'U' case.  Remove dependence on SYMBOL_REF_FLAG.
	(c4x_print_operand_address): Handle LO_SUM.
	(c4x_scan_for_ldp): Delete.  Hooray!
	(c4x_process_after_reload): Remove call to c4x_scan_for_ldp.
	Split all insns.
	(c4x_immed_int_constant): Renamed from c4x_int_constant.  All callers
	changed.
	(c4x_immed_float_constant): Renamed from c4x_float_constant.  All
 	callers	changed.
	(c4x_T_constraint): Allow LO_SUM, disable SYMBOL_REF, LABEL_REF, 
	and CONST.
	(c4x_U_constraint, symbolic_operand): New functions.
	(src_operand): Allow 'I' constants in HImode.  Allow LO_SUM,
	disable SYMBOL_REF, LABEL_REF, and CONST.
	(lsrc_operand, tsrc_operand): Call src_operand instead of
	general_operand.
	(c4x_operand_subword): Update comments.

	* config/c4x/c4x.c (TARGET_LOAD_ADDRESS): New macro.
	(LEGITIMATE_CONSTANT_P): Allow SYMBOL_REF, LABEL_REF, CONST,
	plus HIGH and LO_SUM for the C40.
	(ENCODE_SECTION_INFO): Define macro.
	(symbolic_operand, c4x_U_constraint, c4x_emit_move_sequence): New
	prototypes.
	(PREDICATE_CODES): Add symbolic_operand.

	* config/c4x/c4x.md (movqi, movgqf, movhi, movhi): Call
	c4x_emit_move_sequence.
	(floatunsqiqf2, fixuns_truncqfqi2): Rework emitted RTL
	to avoid symbol references.
	(all patterns with g constraint): Replace 'g' constraint with 'rIm'.
	(set_high): Renamed from set_high_use.
	(set_lo_sum): Renamed from set_ior_lo_use.
	(all call patterns): Make MEM explicit in call address operands.
	Modified output templates to use 'U' modifier.
	
Sun Jan 24 01:15:05 PST 1999 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sat Jan 23 22:34:57 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* final.c (bb_str): Qualify a char* with the keyword `const'.
	(add_bb_string, final_scan_insn, output_asm_insn): Likewise.

	* fix-header.c (read_scan_file): Likewise.

	* genoutput.c (output_epilogue, process_template): Likewise.
	
	* local-alloc.c (requires_inout, block_alloc): Likewise.

	* output.h (output_asm_insn, assemble_string): Likewise.

	* recog.c (recog_constraints, check_asm_operands,
	decode_asm_operands, extract_insn, preprocess_constraints,
	constrain_operands): Likewise.

	* recog.h (operand_alternative, recog_constraints, insn_template,
	insn_outfun, insn_operand_constraint, insn_name): Likewise.

	* regclass.c (record_reg_classes, scan_one_insn): Likewise.

	* regmove.c (find_matches): Likewise.

	* reload.c (alternative_allows_memconst): Likewise.

	* reload1.c (constraint_accepts_reg_p,
	reload_cse_simplify_operands): Likewise.

	* rtl.h (decode_asm_operands): Likewise.

	* scan.h (fn_decl): Likewise.

	* varasm.c (assemble_string): Likewise.

Sat Jan 23 01:37:36 1999  Jeffrey A Law  (law@cygnus.com)

	* configure.in (gcc_tooldir): Handle case where exec_prefix has
	not been explicitly set.
	* configure: Rebuilt.

	* fold-const.c (lshift_double): Mark 'prec' arguments as possibly
	unused.

	* bitmap.h (bitmap_head_def): Make indx field unsigned.

	* configure.in (gcc_tooldir): When not making a relative gcc_tooldir,
	use $exec_prefix/$target_alias for gcc_tooldir.
	* configure: Rebuilt.

Fri Jan 22 11:48:56 1999  Richard Henderson  <rth@cygnus.com>

	* cppp.c (xrealloc): Fix typo last change.
	* cppalloc.c, gcc.c, genattr.c, genattrtab.c, gencodes.c: Likewise.
	* genconfig.c, genemit.c, genextract.c, genflags.c: Likewise.
	* genopinit.c, genoutput.c, genpeep.c, genrecog.c: Likewise.

1999-01-22  Michael Meissner  <meissner@cygnus.com>

	* rs6000.h (CR0_REGNO_P): New macro to test if cr0.
	(CR_REGNO_NOT_CR0_P): New macro to test if cr, but not cr0.
	(PREDICATE_CODES): Add cc_reg_not_cr0_operand.
	(cc_reg_not_cr0_operand): Add declaration.

	* rs6000.c (cc_reg_not_cr0_operand): Return true if register is a
	pseudo register, or a control register that is not CR0.

	* rs6000.md (all combiner patterns building . instructions): For
	all `.' instructions that do something and set cr0, add an
	alternative that does the operation, and then sets a different
	flag, in order to avoid using the costly mcrf instruction and also
	allow cr0 to be clobbered in asm statements.  Also fix a few
	patterns that used the wrong register.

	* rs6000.h (rs6000_cpu_select): Make string, names be const char *.
	(rs6000_debug_name): Make const char *, not char *.

	* sysv4.h (rs6000_{abi,sdata}_name): Make const char *.
	
	* rs6000.c (rs6000_{debug,abi,sdata}_name): Make const char *.
	(rs6000_select): Use const char * in casts.

Fri Jan 22 07:43:01 1999  Jeffrey A Law  (law@cygnus.com)
	
	* Makefile.in (gcc_tooldir): Move before first reference.
	Let autoconf substitute in a value.
	* configure.in (gcc_tooldir): Only use a relative path to the
	tool directory if $exec_prefix == $prefix.
	* configure: Rebuilt.

	* Makefile.in (tooldir): Replace with gcc_tooldir.

Thu Jan 21 23:21:57 1999  Jeffrey A Law  (law@cygnus.com)

	* m68k.md (ashldi_const): Disable for !TARGET_5200.  Fix indention.
	(ashldi3 expander): Similarly.  Update comments.
	(ashrdi_const, lshrdi_const): Fix indention.
	(ashrdi3, lshrdi3): FIx indention.  Update comments.

Thu Jan 21 21:53:36 1999  Richard Henderson  <rth@cygnus.com>

	* emit-rtl.c (try_split): Don't try to split non-instructions.

Thu Jan 21 23:47:30 EST 1999  Andrew MacLeod  <amacleod@cygnus.com>

	* expr.c (emit_push_insn): Fix dumb typo.

Thu Jan 21 20:24:02 1999  Richard Henderson  <rth@cygnus.com>

	* rs6000.h (LEGITIMIZE_RELOAD_ADDRESS): Recognize and accept
	transformations that we have performed earlier.
	* alpha.h (LEGITIMIZE_RELOAD_ADDRESS): Likewise.

	* alpha.md (prologue_stack_probe_loop): Don't do our own label
	handling, call gen_label_rtx instead.

Thu Jan 21 17:45:18 1999  Richard Henderson  <rth@cygnus.com>

	* configure.in ({rs6000|powerpc}-ibm-aix4.[12]*): Add missing `then'.

	* cccp.c (xrealloc): Call malloc given a NULL old pointer.
	* collect2.c, cppalloc.c, gcc.c, genattr.c, genattrtab.c: Likewise.
	* gencodes.c, genconfig.c, genemit.c, genextract.c: Likewise.
	* genflags.c, genopinit.c, genoutput.c, genpeep.c: Likewise.
	* genrecog.c, mips-tfile.c, protoize.c: Likewise.

Thu Jan 21 19:44:55 1999  Michael Meissner  <meissner@cygnus.com>

	* configure.in ({rs6000|powerpc}-ibm-aix4.[12]*): If
	--with-gnu-ld, use x-aix41-gld instead of x-aix41 to suppress
	adding -Wl,-bbigtoc to BOOT_LDFLAGS.
	* configure: Regenerate.

	* config/rs6000/x-aix41-gld: New file, don't set BOOT_LDFLAGS.

Thu Jan 21 15:48:03 1999  Dave Brolley  <brolley@cygnus.com>

	* cppexp.c (cpp_lex): Allocate token_buffer dynamically.

Thu Jan 21 14:18:04 EST 1999  Andrew MacLeod  <amacleod@cygnus.com>

	* expr.c (MOVE_BY_PIECES_P): Define condition for deciding to use
	move_by_pieces.
	(MOVE_MAX_PIECES): Define maximum number of bytes to move at once.
	(USE_LOAD_POST_INCREMENT, USE_LOAD_PRE_DECREMENT): Define defaults.
	(USE_STORE_POST_INCREMENT, USE_STORE_PRE_DECREMENT): Define defaults.
	(move_by_pieces): Use new macros.
	(emit_block_move): Use new macros.
	(clear_by_pieces): Use new macros.
	(clear_storage): Use new macros.
	(emit_push_insn): Use new macros.
	(expand_expr): Use new macros.
	* config/sh/sh.h (USE_LOAD_POST_INCREMENT, USE_LOAD_PRE_DECREMENT): 
	Define.
	(USE_STORE_POST_INCREMENT, USE_STORE_PRE_DECREMENT): Define.
	(MOVE_BY_PIECES_P): Define based on alignment and TARGET_SMALLCODE.
	(MOVE_MAX_PIECES): move 8 bytes on SH4.
	* tm.texi(MOVE_BY_PIECES_P, MOVE_MAX_PIECES, USE_LOAD_POST_INCREMENT,
	USE_LOAD_PRE_DECREMENT, USE_STORE_POST_INCREMENT, 
	USE_STORE_PRE_DECREMENT): Describe new macros.

Thu Jan 21 14:13:31 1999  Vladimir N. Makarov  <vmakarov@cygnus.com>

        * varasm.c (output_constant_pool): Use floor_log2 instead of
	exact_log2 for ASM_OUTPUT_ALIGN.

	* stor-layout.c (layout_type): Do machine-dependent extra alignment.

	* emit-rtl.c (operand_subword): Handle case when a subword outside
	the operand.

	* tm.texi (ROUND_TYPE_{SIZE,ALIGN}): More accurate descriptions of
	the macros.

Thu Jan 21 01:59:30 1999  Richard Henderson  <rth@cygnus.com>

	* 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.

Thu Jan 21 00:29:35 1999  Nathan Sidwell  <nathan@acm.org>

	* Makefile.in (install-common): Remove extraneous chmod for gcov
	install.

Wed Jan 20 18:15:08 1999  Dave Brolley  <brolley@cygnus.com>

	* function.c (assign_parms): Save and restore setting of
 	TREE_USED (parm).

Wed Jan 20 12:51:42 1999  Mark Mitchell  <mark@markmitchell.com>

	* arm.md: Use MEM_COPY_ATTRIBUTES where appropriate throughout.
	Pass MEM_SCALAR_P to arm_gen_store_multiple where appropriate.

Tue Jan 19 21:20:52 1999  Richard Henderson  <rth@cygnus.com>

	* recog.c (pop_operand): New function.
	* recog.h (pop_operand): Declare it.
	* genrecog.c (preds): Define it.

	* expr.c (do_jump_for_compare): Handle conditional branch expanders
	emitting multiple jump instructions.
	* jump.c (condjump_label): New function.
	* rtl.h (condjump_label): Declare it.

Tue Jan 19 21:08:20 1999  Richard Henderson  <rth@cygnus.com>

	* expr.c (emit_move_insn_1): Revert 17 Dec change.  Don't emit
	clobber during or after reload.

Tue Jan 19 16:56:03 1999  Richard Henderson  <rth@cygnus.com>

	* genoutput.c (name_for_index): New function.
	(scan_operands, validate_insn_alternatives): Use it.
	* genrecog.c (insn_name_ptr_size): New variable.
	(make_insn_sequence): Fill in insn_name_ptr.
	(merge_trees): Use it.

Tue Jan 19 16:37:36 1999  Richard Henderson  <rth@cygnus.com>

	* i386/isc.h (TARGET_DEFAULT): Define symbolicly.
	* i386/isccoff.h, i386/next.h, i386/sco.h, i386/sco5.h: Likewise.
	* i386/scodbx.h, i386/sequent.h, i386.unix.h: Likewise.

Tue Jan 19 15:00:10 1999  Jeffrey A Law  (law@cygnus.com)

	* loop.c (NUM_STORES): Delete.
	(loop_store_mems): Turn into an EXPR_LIST of MEMs.
	(prescan_loop): Properly initialize loop_mems_idx.
	(note_addr_stored): Simplify using list structure instead of
	fixed sized array.
	(invariant_p, check_dbra_loop, load_mems): Similarly.

	* flow.c (invalidate_from_autoinc): New function.
	(mark_set_1, mark_used_regs): Use it.

	* Makefile.in (protoize.o, unprotoize.o): Depend on Makefile.

1999-01-19  Vladimir N. Makarov  <vmakarov@cygnus.com>

	* invoke.texi (-mlong-double-64): New option description.

1999-01-19  Jim Wilson  <wilson@cygnus.com>

	* libgcc2.c: Change all uses of LONG_DOUBLE_TYPE_SIZE to
	LIBGCC2_LONG_DOUBLE_TYPE_SIZE.
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): New.  Set to LONG_DOUBLE_TYPE_SIZE
	if not defined.
	* i960/i960.h (MULTILIB_DEFAULTS): Define to mnumerics.
	(CPP_SPECS): Add -mlong-double-64 support.
	(TARGET_FLAG_LONG_DOUBLE_64, TARGET_LONG_DOUBLE_64): New.
	(TARGET_SWITCHES): Add -mlong-double-64 support.
	(LONG_DOUBLE_TYPE_SIZE): Likewise.
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
	* i960/vx960-coff.h (MULTILIB_DEFAULTS): Define to msoft-float.
	(CPP_SPECS): Add -mlong-double-64 support.
	* i960/t-960bare (MULTILIB_OPTIONS): Add mlong-double-64.
	(MULTILIB_DIRNAMES): Add ld64.
	* i960/t-vxworks960 (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): Likewise.

Tue Jan 19 11:54:04 1999  Jason Merrill  <jason@yorick.cygnus.com>

	* calls.c (expand_call): Strip a TARGET_EXPR if we're passing by
	invisible reference.

Tue Jan 19 14:51:36 1999  David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.c (offsettable_addr_operand): Delete.
	(offsettable_mem_operand): New function.
	* rs6000.h (PREDICATE_CODES): Reflect function change.
	(RS6000_SAVE_TOC): Represent address as MEM.
	* win-nt.h (RS6000_SAVE_TOC): Same.
	* rs6000.md (indirect calls): Change offsettable address parameter
	to offsettable memory parameter.

Tue Jan 19 10:24:53 1999  Mark Mitchell  <mark@markmitchell.com>

	* 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.
	
Tue Jan 19 12:30:37 EST 1999  Andrew MacLeod  <amacleod@cygnus.com>

	* optabs.c (emit_libcall_block): Add a REG_EH_REGION reg note to all
	calls within a libcall block to indicate no throws are possible.
	* flow.c (find_basic_blocks, find_basic_blocks_1): Don't look for 
	libcall blocks. Don't add edges to exception handlers if we see 
	a REG_EH_REGION note with a value of 0.
	(make_edges): Override active_eh_region vector if the call has a note
	indicating the call does not throw.

1999-01-19  Vladimir N. Makarov  <vmakarov@cygnus.com>

	* config/rs6000/sysv4.h (CC1_SPEC): Fix correct numbers of {}.

Tue Jan 19 06:26:30 1999  Jeffrey A Law  (law@cygnus.com)

	* Makefile.in (cccp.o, cpplib.o): Depend on Makefile.

Mon Jan 18 09:56:41 1999  Jason Merrill  <jason@yorick.cygnus.com>

	* invoke.texi (C++ Dialect Options): Document -fno-rtti.

1999-01-18  Vladimir N. Makarov  <vmakarov@cygnus.com>

	*  invoke.texi (-mcpu=740, -mcpu=750): New options.
        (-m(no-)multiple, -m(no-)string): Describe cases for PPC740 &
	PPC750.

1999-01-18  Michael Meissner  <meissner@cygnus.com>

	* rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
	supported with -mcpu=xxx.
	(processor_type): Add PROCESSOR_PPC750.
	(ADJUST_PRIORITY): Call rs6000_adjust_priority.
	(RTX_COSTS): Supply costs for 750 multiply/divide operations.
	(rs6000_adjust_priority): Add declaration.
	
	* rs6000.c (rs6000_override_options): -mcpu={750,740} now sets the
	processor type as 750, not 603.  Allow -mmultiple and -mstring on
	little endian 750 systems.
	(rs6000_adjust_priority): Stub for now.
	(get_issue_rate): The PowerPC 750 can issue 2 instructions/cycle.

	* rs6000.md (function/cpu attributes): Add initial ppc750 support.

	* sysv4.h (STRICT_ALIGNMENT): Don't force strict alignment if
	little endian.
	(CC1_SPEC): Pass -mstrict-align if little endian, and not
	overridden.
	(CC1_ENDIAN_{LITTLE,BIG,DEFAULT}_SPEC): Endian specific configs.
	(SUBTARGET_EXTRA_SPECS): Add cc1 endian specs.

	* {sysv4,eabi}le.h (CC1_ENDIAN_DEFAULT_SPEC): Override, default is
	little endian.

	* t-ppcgas (MULTILIB_*): Delete obsolete Solaris multilibs.

Mon Jan 18 12:03:08 1999  Gavin Romig-Koch  <gavin@cygnus.com>

	* config/mips/mips.md (div_trap): Split div_trap_mips16
	from div_trap.  
	(div_trap_normal,div_trap_mips16): Correct the length attributes.

Mon Jan 18 11:48:28 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cpplib.c (special_symbol): Qualify a char* with the `const' keyword.
	Instead of writing to const char *buf directly, use a non-const
 	variable `wbuf' to allocate and write a string, then set buf = wbuf.

	* cppulp.c (user_label_prefix): Qualify a char* with the `const'
	keyword.

	* dyn-string.c (dyn_string_append): Likewise.

	* dyn-string.h (dyn_string_append): Likewise.

	* final.c (end_final, output_operand_lossage, asm_fprintf): Likewise.

	* output.h (end_final, output_operand_lossage, asm_fprintf,
	named_section, decode_reg_name, make_decl_rtl, user_label_prefix):
	Likewise.

	* profile.c (init_branch_prob): Likewise.

	* toplev.c (set_target_switch, vmessage,
 	v_message_with_file_and_line, v_message_with_decl,
 	v_error_with_file_and_line, v_error_with_decl, v_error_for_asm,
 	verror, vfatal, v_warning_with_file_and_line, v_warning_with_decl,
 	v_warning_for_asm, vwarning, vpedwarn, v_pedwarn_with_decl,
 	v_pedwarn_with_file_and_line, vsorry, v_really_sorry,
	open_dump_file, dump_rtl, clean_dump_file, 
	print_version, print_single_switch, print_switch_values,
	dump_base_name, debug_args, lang_independent_options,
	user_label_prefix, documented_lang_options, target_switches,
	target_options, print_time, pfatal_with_name, fatal_io_error,
	fatal_insn, default_print_error_function, print_error_function,
	report_error_function, error_with_file_and_line, error_with_decl,
	error_for_asm, error, fatal, warning_with_file_and_line,
	warning_with_decl, warning_for_asm, warning, pedwarn,
	pedwarn_with_decl, pedwarn_with_file_and_line, sorry,
	really_sorry, botch, output_quoted_string, output_file_directive,
	open_dump_file, rest_of_decl_compilation, display_help, main):
	Likewise.

	* toplev.h (print_time, fatal, fatal_io_error, pfatal_with_name,
	fatal_insn, warning, error, pedwarn, pedwarn_with_file_and_line,
	warning_with_file_and_line, error_with_file_and_line, sorry,
        really_sorry, default_print_error_function, report_error_function,
	rest_of_decl_compilation, pedwarn_with_decl, warning_with_decl,
	error_with_decl, error_for_asm, warning_for_asm, output_quoted_string,
	output_file_directive, botch): Likewise.

	* tree.h (make_decl_rtl): Likewise.

	* varasm.c (strip_reg_name, named_section, decode_reg_name,
	make_decl_rtl): Likewise.
	
Mon Jan 18 11:35:49 1999  Gavin Romig-Koch  <gavin@cygnus.com>

	* Makefile.in (TCL_LIBRARY): Use 'cd' to find the library
	directory logically rather than physically. 

Mon Jan 18 09:05:37 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* loop.c (insert_bct): Hide the definition of variables
	`increment_direction', `compare_direction', `add_iteration' and
	`loop_var_mode'.

	* recog.c (mode_dependent_address_p): Mark parameter `addr' with
	ATTRIBUTE_UNUSED.  Mark label `win' with ATTRIBUTE_UNUSED_LABEL.
	(mode_independent_operand): Mark label `lose' with
	ATTRIBUTE_UNUSED_LABEL.

	* regclass.c (n_occurrences): Remove prototype and definition.

	* reload.c (find_reloads_address_1): Mark variable `tem' with
	ATTRIBUTE_UNUSED.

	* reload1.c (reload): Cast the first two arguments of `bcopy' to PTR.

	* sbitmap.c (sbitmap_copy): Likewise.

	* scan-decls.c (scan_decls): Hide label `handle_comma'.

	* toplev.c (output_lang_identify): Mark prototype with
	ATTRIBUTE_UNUSED.

	* tree.c (make_node): Cast the first argument of `bzero' to PTR.
	(make_tree_vec): Likewise.
	(build1): Likewise.

	* varasm.c (assemble_static_space): Mark variable `tem' with
 	ATTRIBUTE_UNUSED.

Mon Jan 18 04:28:36 1999  Nathan Sidwell  <nathan@acm.org>

	* Makefile.in (GCOV_INSTALL_NAME): New macro.
	(install-common): Use it.
	(uninstall): Use it.
	(uninstall): Use correct names for protoize and unprotoize.

Mon Jan 18 03:52:56 1999  Christian Bruel <Christian.Bruel@st.com>
			  Jeffrey A Law  (law@cygnus.com)

	* flow.c (last_mem_set): Delete variable.  References removed.
	(mem_set_list): New variable.
	(life_analysis): Initialize and finalize alias analysis.
	(propagate_block); Initialize mem_set_list.  Clear for CALL_INSNs.
	(insn_dead_p): For a store to memory, search the entire mem_set_list
	for a match.
	(mark_set_1): Kill entries on the mem_set_list for aliased writes or
	changes to their addresses.  Add new entries to the mem_set_list for
	memory writes writes.
	(mark_used_regs): Kill entries on the mem_set_list which may be
	referenced by a load operation.

Mon Jan 18 01:01:02 1999  Jeffrey A Law  (law@cygnus.com)

	* alias.c (base_alias_check): Add missing return for differing
	symbols case.

Mon Jan 18 00:36:13 1999  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* mips-tdump.c (print_file_desc): Handle unknown filenames and
	missing local symbols.

Sun Jan 17 21:04:31 1999  Richard Henderson  <rth@cygnus.com>

	* jump.c (rtx_renumbered_equal_p): Special case CODE_LABEL.

	* system.h (bcopy): Implement with memmove not memcpy.

Sun Jan 17 19:23:20 1999  Jeffrey A Law  (law@cygnus.com)

	* Makefile.in (cppulp.o): Add dependencies.

	* i386.md (integer conditional moves): Add missing earlyclobbers.

        * regmove.c (optimize_reg_copy_1): Undo Aug 18 change.  Update
        REG_N_CALLS_CROSSED and REG_LIVE_LENGH if and only if we change
        where a register is live.

Sun Jan 17 03:20:47 1999  H.J. Lu  (hjl@gnu.org)

	* reg-stack.c (subst_stack_regs_pat): Abort if the destination
	of a FP conditional move is not on the FP register stack.

Sun Jan 17 01:15:04 PST 1999 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sat Jan 16 23:40:33 1999  Jeffrey A Law  (law@cygnus.com)

	* reload1.c (reload_cse_regs_1): Do not call
	reload_cse_simplify_operands for an insn with asm operands.

	* cccp.c (print_help): Fix typos.
	* cpplib.c (print_help): Fix typos.
	* toplev.c (f_optiosn): Fix typos.
	(documented_lang_options): Fix typos.

Sat Jan 16 21:48:17 1999  Marc Espie (Marc.Espie@openbsd.org)

	* gcc.c: (do_spec_1): Fix obvious typo.

Sat Jan 16 19:31:07 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-decl.c (duplicate_decls): If `warn_traditional', warn when
	a non-static function declaration follows a static one.

	* invoke.texi (-Wtraditional): Document the extra check now done
	by this flag.

Sat Jan 16 15:13:46 1999  Jeffrey A Law  (law@cygnus.com)

	* pa.md (shadd): Create shadd insns, even if the result of the shift is
	needed without the addition.

Sat Jan 16 10:48:16 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.md (movdf, movsf): Temporary workaround for no_new_pseudos lossage.

Fri Jan 15 23:44:37 1999  Richard Henderson  <rth@cygnus.com>

	* sparc.c (sparc_issue): Add hypersparc/sparclite86x entries.

Fri Jan 15 22:30:04 1999  David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.h (CONST_OK_FOR_LETTER_P): Do not assume 32-bit CONST_INT.
	* rs6000.c (u_short_cint_operand, add_operand, logical_operand,
	non_add_cint_operand, non_logical_cint_operand): Likewise.
	(get_issue_rate): Add CPU_PPC604E case.
	* rs6000.md (movdi, !TARGET_POWERPC64 splitters): Handle 64-bit hosts.
	
Fri Jan 15 18:42:12 1999  Richard Henderson  <rth@cygnus.com>

	* expr.c (queued_subexp_p): Make public.
	* expr.h (queued_subexp_p): Declare it.
	* recog.c (asm_operand_ok): New function.
	(check_asm_operands): Use it.  After reload, use constrain_operands 
	instead.
	* recog.h (asm_operand_ok): Declare it.
	* stmt.c (expand_asm_operands): Use it to try harder to make
	asms initially satisfy their constraints.

Fri Jan 15 17:43:59 1999  Jeffrey A. Law  <law@rtl.cygnus.com>

	* sparc.h (LEGITIMIZE_RELOAD_ADDRESS): Do not create
	(mem (lo_sum (...)) for TFmode unless TARGET_V9.

Sat Jan 16 12:47:15 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (not_repeat_reg): Allow ldp instruction
	in delay slot of RPTBD.

Sat Jan 16 12:26:40 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/libgcc.S (___divhi3, ___modhi3): Fix long long
	divide and modulo sign problem.

Fri Jan 15 11:02:31 1999   Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* unroll.c (loop_iterations): Return 0 if the last loop insn
	is not a jump insn or if the loop has multiple back edges.

Thu Jan 14 22:38:41 1999  Jeffrey A Law  (law@cygnus.com)

	* unroll.c (find_splittable_givs): For a DEST_ADDR giv, do not share
	a register with another DEST_ADDR giv if the address is not valid.

	* pa.c (hppa_expand_epilogue): Save and restore the static chain
	around the call to mcount.

	* h8300.h (ASM_OUTPUT_LABELREF): Use asm_fprintf, not fprintf.

	* stmt.c (expand_end_case): Use emit_cmp_and_jump_insns to avoid
	generating non-canonical rtl.

1999-01-14  Vladimir N. Makarov  <vmakarov@cygnus.com>

	* config/i960/i960.c (i960_output_move_double_zero,
	i960_output_move_quad_zero): New functions for moving zeros.
	(i960_output_move_double, i960_output_move_quad): Additional code
	for situation when moving unaligned register group.
	
        * config/i960/i960.h (i960_output_move_double_zero,
	i960_output_move_quad_zero): The function definitions.

	* config/i960/i960.md (movdi+1, movti+1): Usage of the functions.

1999-01-13  Vladimir N. Makarov  <vmakarov@cygnus.com>

	* config/i960/i960.c (i960_function_prologue): New code (optimal
	solution) for saving global registers in local registers.
	(form_reg_groups, reg_group_compare, split_reg_group): New
	functions used by the code.
	(reg_group): New structure definition for the new code.
	
Wed Jan 13 20:12:37 1999  Richard Henderson  <rth@cygnus.com>

	* integrate.c (expand_inline_function): Recognize (mem (addressof))
	and substitute.  Copy the return value from there into a new pseudo.

Wed Jan 13 16:47:00 1999  Catherine Moore  <clm@cygnus.com>

        * config/arm.c (output_func_epilogue):  Check TARGET_ABORT_NORETURN
        before generating a call to abort for volatile functions.
        * config/arm.h (ARM_FLAG_ABORT_NORETURN):  Define.
        (TARGET_ABORT_NORETURN):  Define.
        (abort-on-noreturn):  New option.

Thu Jan 14 13:52:42 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (in_annul_slot_3): Correctly allow unarycc 
	and binarycc operations in 3rd annulled delay slot!

Wed Jan 13 16:16:44 1999  Catherine Moore  <clm@cygnus.com>

        * config/arm.c (output_func_epilogue):  Check TARGET_ABORT_NORETURN
        before generating a call to abort for volatile functions.
        * config/arm.h (ARM_FLAG_ABORT_NORETURN):  Define.
        (TARGET_ABORT_NORETURN):  Define.
        (abort-on-noreturn):  New option.

Wed Jan 13 13:30:08 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cccp.c (xstrdup): Renamed from `savestring'.  All callers changed.
	Remove prototype which we get from libiberty.h.

	* collect2.c (xstrdup): Likewise.

	* genextract.c (xstrdup): Likewise for `copystr'.
	(mybzero): Remove it and use `memset' instead.

	* genoutput.c (mybcopy, mybzero): Remove these.  All callers changed
	to use `memcpy' and `memset' instead.

	* genrecog.c (xstrdup): Renamed from `copystr'.  All callers
 	changed.  Remove prototype.
	(mybcopy, mybzero): Remove these and use memcpy/memset.

Wed Jan 13 00:59:04 1999  Jeffrey A Law  (law@cygnus.com)

	* mips.h (LOAD_EXTEND_OP): Correct for SImode and CCmode moves when
	generating code for TARGET_64BIT.

Tue Jan 12 14:05:37 1999   David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.c (print_operand, cases 'm' and 'M'): Do not depend on
	HOST_WIDE_INT word-size.
	(rs6000_stack_info): Remove redundant alignment of fpmem.

Tue Jan 12 14:05:37 1999   Richard Henderson  <rth@cygnus.com>

	* rs6000.c (short_cint_operand): Remove CONSTANT_P_RTX handling.
	(u_short_cint_operand, reg_or_cint_operand, logical_operand): Likewise.
	(input_operand): Adjust CONSTANT_P_RTX handling.
	* rs6000.h (PREDICATE_CODES): Remove CONSTANT_P_RTX references.
	* rs6000.md (movsi): Adjust CONSTANT_P_RTX handling.
	(movhi, movqi): Remove CONSANT_P_RTX handling.
	(movdi): Adjust CONSTANT_P_RTX handling.

Tue Jan 12 10:23:24 1999  Stan Cox  <scox@cygnus.com>

	* mips.md (call_value_internal3c): New pattern for -mips16 -mlong-calls.

1999-01-12  Manfred Hollstein  <manfred@s-direktnet.de>

	* m68k/mot3300.h (ADD_MISSING_POSIX, ADD_MISSING_XOPEN): Define to
	ensure all prototypes necessary for building libio will be available.
	* m68k/xm-mot3300.h (ADD_MISSING_POSIX, ADD_MISSING_XOPEN): Remove
	definitions here as they are not host specific.
	* m88k/sysv3.h, m88k/xm-sysv3.h: Likewise.

Tue Jan 12 02:53:46 1999  Richard Henderson  <rth@cygnus.com>

	* cse.c (cse_insn): Never prefer (const (constant_p_rtx)).

Tue Jan 12 02:36:10 PST 1999 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Tue Jan 12 01:30:19 1999  Richard Henderson  <rth@cygnus.com>

	* rtl.c (rtx_alloc): Use memset instead of inline loop.

	* recog.h (recog_op_alt): Declare extern.

Tue Jan 12 00:23:31 1999  Richard Henderson  <rth@cygnus.com>

	* function.c (purge_addressof_1): If the note accesses a mem+addressof
	in a wider mode than any replacement, adjust the cached replacement.
	Cache trivial substitutions as well.

Tue Jan 12 00:06:00 1999  Richard Henderson  <rth@cygnus.com>

        * Makefile.in (OBJECTS): Add sbitmap.o.
        (BASIC_BLOCK_H): Add sbitmap.h.
        * basic-block.h: Move simple bitmap code to sbitmap.h.
        * flow.c: Move simple bitmap code to sbitmap.c
        * sbitmap.h, sbitmap.c: New files.

Mon Jan 11 23:51:50 1999  Richard Henderson  <rth@cygnus.com>

	* alpha.h (TARGET_SWITCHES): Document switches.
	(TARGET_OPTIONS): Likewise.

	* alpha/elf.h (ASM_FINISH_DECLARE_OBJECT): Use HOST_WIDE_INT_PRINT_DEC.

Mon Jan 11 22:54:14 1999  Richard Henderson  <rth@cygnus.com>

	* tree.c (new_alias_set): Return zero if !flag_strict_aliasing.

Mon Jan 11 22:36:01 1999  Richard Henderson  <rth@cygnus.com>

	* basic-block.h (basic_block_head): Rename to x_basic_block_head.
	(basic_block_end): Rename to x_basic_block_end.
	(BLOCK_HEAD, BLOCK_END): Update.

	* caller-save.c: Change basic_block_head/end references to 
	BLOCK_HEAD/END.
	* combine.c, flow.c, function.c, gcse.c, global.c: Likewise.
	* graph.c, haifa-sched.c, local-alloc.c, regclass.c: Likewise.
	* regmove.c, reload1.c, reorg.c, sched.c: Likewise.

Sat Jan  9 23:54:09 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* gcc.c (xstrerror): Renamed from my_strerror.  All callers
 	changed.  Remove prototype since we get that from libiberty.h.

	* protoize.c (xstrerror): Likewise.

Sat Jan  9 23:22:04 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* gcc.c (read_specs): Ensure format specifiers match their arguments.

Sat Jan  9 20:04:24 1999  Richard Henderson  <rth@cygnus.com>

	* tree.c (copy_node): Oops.  That would be copy not zero
	in that last change.

Sun Jan 10 15:35:41 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c: Include system.h.
 	(c4x_caller_save_map): Disable caller save for RC.
	(c4x_optimization_options): Disable scheduling before reload.
	(valid_parallel_load_store) : Define return type as int.  
	Remove unused variable regs.
	* config/c4x/c4x.h (REGISTER_MOVE_COST): Make independent of register
	class.
	* config/c4x/c4x.md (rotlqi3, rotrqi3): Fix up emitted RTL to
	handle rotations.
	(*db, decrement_and_branch_until_zero): Fix up constraints
	to keep reload happy.

Sat Jan  9 18:35:29 1999  Richard Henderson  <rth@cygnus.com>

	* tree.c (make_node): Call bzero instead of inline clear.
	(copy_node, make_tree_vec, build1): Likewise.
	(get_identifier): Call strlen instead of inline count.
	(maybe_get_identifier): Likewise.

Sun Jan 10 14:04:51 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md: (in_annul_slot_3): Allow unarycc and binarycc
	operations in 3rd annulled delay slot.
	(*lshrqi3_const_set): Disallow c constraint for operand0.
	(modhi3+1, modhi3+2): Set attribute type to multi.
	* config/c4x/c4x.c (c4x_S_constraint): Removed space in middle of 
	!= operator.

Sat Jan  9 11:44:55 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* gansidecl.h: Allow attribute unused on labels only when we are
 	version 2.93 or higher.  Not all versions of 2.92 have this feature.

	* version.c: Bump minor number to 93.

Fri Jan  8 10:51:13 1999  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* config/m68k/m68k.h: Declare output_function_epilogue.
	* recog.h: Declare next_insn_tests_no_inequality.

Fri Jan  8 01:43:53 1999  Jeffrey A Law  (law@cygnus.com)

	* stmt.c (optimize_tail_recursion): New function, extracted from ...
	(expand_return): Use optimize_tail_recursion.
	* tree.h (optimize_tail_recursion): Declare.

	* toplev.c (compile_file): Move call to output_func_start_profiler
	to after the loop to emit deferred functions.

Thu Jan  7 19:52:53 1999  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* system.h (abort): Supply more detailed information on how to
 	report an Internal Compiler Error.

Thu Jan  7 11:26:17 1999  Mark Mitchell  <mark@markmitchell.com>

	* calls.c (store_unaligned_arguments_into_pseudos): Use xmalloc to
	allocate memory that will live beyond this function.
	(expand_call): Free it here.

Thu Jan  7 03:08:17 1999  Richard Henderson  <rth@cygnus.com>

	* sparc.h (PREFERRED_RELOAD_CLASS): Select GENERAL_REGS for 
	integer data not destined for fp regs.
	(LEGITIMIZE_RELOAD_ADDRESS): New.

Thu Jan  7 03:03:42 1999  Stan Cox  <scox@cygnus.com>
			  Richard Henderson  <rth@cygnus.com>

	Support for Hypersparc and Sparclite86x:
	* sparc.h (TARGET_CPU_hypersparc, TARGET_CPU_sparclite86x): New.
	(CPP_CPU32_DEFAULT_SPEC): Fix up for the new targets.
	(ASM_CPU32_DEFAULT_SPEC): Likewise.
	(TARGET_CPU_DEFAULT): Likewise.
	(enum processor_type): Likewise.
	(CPP_ENDIAN_SPEC): Handle little endian data.
	(LIBGCC2_WORDS_BIG_ENDIAN): Likewise.
	(ADJUST_COST): Call sparc_adjust_cost.
	* sparc.c (sparc_override_options): Fix up for the new targets.
	(supersparc_adjust_cost): Make static.
	(hypersparc_adjust_cost): New.
	(ultrasparc_adjust_cost): Make static.
	(sparc_adjust_cost): New.
	* sparc.md (attr cpu): Add hypersparc and sparclite86x.
	(function_unit): Add hypersparc scheduling rules.

	* configure.in (with_cpu handler): Recognize hypersparc.

Thu Jan  7 23:54:05 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c: Added space after negation operator.
	* config/c4x/c4x.h: Likewise.
	* config/c4x/c4x.md: Likewise.

Thu Jan  7 23:39:27 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_preferred_reload_class): Always return class.

Thu Jan  7 00:29:25 199  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* combine.c (num_sign_bit_copies): In NEG, MULT, DIV and MOD cases,
	when a test can't be performed due to limited width of
	HOST_BITS_PER_WIDE_INT, use the more conservative approximation.
	Fix UDIV case for cases where the first operand has the highest bit
	set.

Thu Jan  7 00:01:38 1999  Lutz Vieweg <lkv@mania.robin.de>

	* pa.h (reg_class): Add FPUPPER_REGS.
	(REG_CLASS_NAMES): Similarly.
	(REG_CLASS_CONTENTS): Similarly
	(REGNO_REG_CLASS): Handle FPUPPER_REGS.
	(FP_REG_CLASS_P): Likewise.
	(REG_CLASS_FROM_LETTER): Similarly.
	(CLASS_MAX_NREGS): Similarly.

1999-01-06  Brendan Kehoe  <brendan@cygnus.com>

	* fixincludes: For HP/UX 10.20, also look in curses_colr/curses.h
	for a typedef of bool.  Make sure to have a copy of the file is
	in place before we look to fix it.  Fix typo in variable name to
	FILE.

Wed Jan  6 07:51:05 1999  Richard Henderson  <rth@cygnus.com>

	* expr.c (expand_builtin) [case BUILT_IN_CONSTANT_P]: Use
	value_mode for the return mode.

Wed Jan  6 17:55:19 1999  Robert Lipe  <robertlipe@usa.net>

	* configure.in: New flag --with-dwarf2.   If set, enables DWARF-2
	debugging as default.

	* config/tm-dwarf2.h: New file.

Wed Jan  6 16:08:54 1999  Jeffrey A Law  (law@cygnus.com)

	* h8300.h (ASM_OUTPUT_LABELREF): Define.

	* pa.h (DONT_RECORD_EQUIVALENCE): Kill.
	* local-alloc.c (update_equiv_regs): Corresponding changes.
	* tm.texi (DONT_RECORD_EQUIVALENCE): Kill.

	* calls.c (special_function_p): Push alloca test inside the large
	conditional which excludes functions not at file scope or not
	extern.  

	* calls.c (special_function_p): New function broken out of
	expand_call.
	(precompute_register_parameters): Likewise.
	(store_one_arg): Likewise.
	(store_unaligned_argumetns_into_pseudos): Likewise.
	(save_fixed_argument_area): Likewise.
	(restore_fixed_argument_area): Likewise.
	(expand_call): Corresponding changes.
	
Wed Jan  6 10:43:29 1999  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* config/m68k/m68k.c (const_uint32_operand): Remove CONSTANT_P_RTX
	handling.
	(const_sint32_operand): Likewise.

Wed Jan  6 09:44:51 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* toplev.h: In addition to checking _JBLEN, also check if `setjmp'
 	is a macro when deciding if we can use `jmp_buf' in prototypes.

Thu Jan  7 00:12:24 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (addqi3): If the destination operand is
	a hard register other than an extended precision register,
	emit addqi3_noclobber.
	(*addqi3_noclobber_reload): New pattern added so that reload
	will recognise a store of a pseudo, equivalent to the sum
	of the frame pointer and a constant, as an add insn.

Wed Jan  6 03:18:53 1999  Mark Elbrecht  <snowball3@usa.net.

	* configure.in (pc-msdosdjgpp): Set x_make to x-go32.
	* configure: Rebuilt.
	* i386/xm-go32.h: Define LIBSTDCXX.
	* i386/x-go32: New.
	* i386/go32.h (MD_EXEC_PREFIX): Define.
	(FILE_NAME_ABSOLUTE_P): Define.
	(LINK_COMMAND_SPEC): Define.

Wed Jan  6 02:23:36 1999  "Charles M. Hannum" <root@ihack.net>

	* expr.c (store_expr): If the lhs is a memory location pointed
	to be a postincremented (or postdecremented) pointer, always
	force the rhs to be evaluated into a pseudo.

Wed Jan  6 00:54:21 1999  Geoff Keating  <geoffk@ozemail.com.au>

	* real.c (mtherr): Print more reasonable warning messages.

Tue Jan  5 21:57:42 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* Makefile.in (gcc.o, prefix.o, cccp.o, cpplib.o): Depend on prefix.h.

	* cccp.c: Include prefix.h, don't prototype prefix.c functions.
	(new_include_prefix): Constify char* parameters.

	* cppfiles.c (read_name_map): Likewise.
	(append_include_chain): Likewise.  Also, use a writable char* copy
	of parameter `dir' which we then modify, rather than using the
	parameter itself to store the new writable string.
	(remap_filename): Constify some variables.  Also, use a writable
	char* to store an allocated string which we will be modifying.

	* cpplib.c: Include prefix.h, don't prototype prefix.c functions.
	(cpp_start_read): Constify variable `str'.

	* cpplib.h (append_include_chain): Constify a char* parameter.

	* gcc.c Include prefix.h, don't prototype prefix.c functions.
	(add_prefix, save_string): Constify char* parameters.
	(fatal, error): Add ATTRIBUTE_PRINTF_1 to prototypes.

	* prefix.c: Include prefix.h.
  	(get_key_value, translate_name, save_string, update_path,
	set_std_prefix): Constify various char* parameters and variables.
	(save_string): Use xmalloc, not malloc.
	(translate_name): Use a writable temporary variable to create and
	modify a string before setting it to a const char*.
	
	* prefix.h: New file to prototype functions exported from prefix.c.

Mon Jan  4 15:37:30 1999  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* cpplib.c (skip_if_group): Split out the logic that handles
	directive recognition to its own function.  Don't use
	parse markers; use a bare pointer into the buffer.  Use
	copy/skip_rest_of_line instead of doing it by hand.  Remove
	`return on any directive' mode which was never used, and take
	only one argument.
	(consider_directive_while_skipping): New function, subroutine
	of skip_if_group.  Logic streamlined a bit.
	(conditional_skip, do_elif, do_else): Call skip_if_group with
	only one argument.

Mon Jan  4 15:27:30 1999  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* cpplib.c (do_undef): EOF immediately after '#undef FOO' is not an
	error.

Mon Jan  4 11:55:51 1999  Jason Merrill  <jason@yorick.cygnus.com>

	* extend.texi (Bound member functions): Document.

Mon Jan  4 11:01:48 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* mips-tdump.c (st_to_string, sc_to_string, glevel_to_string,
	lang_to_string, type_to_string): Make return type const char*.
	(print_symbol): Apply `const' keyword to a char*.
	(print_file_desc): Cast structure member `crfd' to ulong when
	comparing against one.

	* mips-tfile.c (pfatal_with_name): Apply `const' keyword to char*.
	(fatal, error): Add ATTRIBUTE_PRINTF_1 to prototypes.
	(progname, input_name): Apply `const' keyword to a char*.
	Don't redundantly include sys/stat.h.
	(alloc_info): Apply `const' keyword to a char*.
	(st_to_string, sc_to_string): Likewise.
	(hash_string): Cast variable `hash_string' to a symint_t when
	comparing against one.
	(add_string): Cast PAGE_USIZE to Ptrdiff_t when comparing against one.
	Likewise cast it to long when comparing against one.
	(add_local_symbol): Apply `const' keyword to a char*.
	(add_ext_symbol): Likewise.
	(add_unknown_tag): Likewise.
	(add_procedure): Cast a printf-style field width to an int.
	(add_file): Cast PAGE_USIZE to long when comparing against one
	(parse_begin): Cast a printf-style field width to an int.
	(parse_bend): Likewise.
	(parse_def): Likewise.
	(parse_end): Likewise.
	(mark_stabs): Mark parameter `start' with ATTRIBUTE_UNUSED.
	(parse_stabs_common): Fix format specifier.
	(parse_input): Change type of variable `i' to Size_t.
	(write_object): Fix arguments to match format specifiers.
	Cast variable `num_write' to long when comparing against one.
	(read_seek): Cast variable `sys_read' to symint_t when comparing
 	against one.  Fix arguments to match format specifiers.  Cast
	variable `size' to long when comparing against one.
	(copy_object): Cast result of `sizeof' to int when comparing
	against one.  Fix arguments to match format specifiers.  Cast
	variable `ifd' to long when comparing against a signed value.
	Likewise, likewise.
	
Mon Jan  4 10:30:33 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-common.c (decl_attributes): Allow applying attribute `unused'
	on a LABEL_DECL.

	* c-parse.in (label): Parse attributes after a label, and call
 	`decl_attributes' to handle them.

	* gansidecl.h (ATTRIBUTE_UNUSED_LABEL): Define.

	* genrecog.c (OUTPUT_LABEL, write_tree_1, write_tree): When
	generating labels, mark them with ATTRIBUTE_UNUSED_LABEL.

	* invoke.texi: Note that labels can be marked `unused'.

Sun Jan 3 23:32:18 PST 1999 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sun Jan  3 23:00:42 1999  Jeffrey A Law  (law@cygnus.com)

	* optabs.c (emit_cmp_and_jump_insns): Use CONSTANT_P canonicalizing
	RTL for a compare/jump sequence.
	
Sun Jan  3 22:58:15 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* optabs.c (emit_cmp_insn): Abort if asked to emit non-canonical RTL
	for a target with HAVE_cc0 defined.
	(emit_cmp_and_jump_insns): New function.
	* expr.h (emit_cmp_and_jump_insns): Prototype it.
	* loop.c (check_dbra_loop): Use it to replace calls
	to emit_cmp_insn and emit_jump_insn and to canonicalise
	the comparison if necessary.
	* unroll.c (unroll_loop): Likewise.

Sun Jan  3 21:01:04 1999  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* fixincludes (sys/utsname.h): Provide forward declaration of
	struct utsname on Ultrix V4.[35].

	* mips.md (div_trap): Use local labels instead of dot-relative
	branches.

Sun Jan  3 20:40:34 1999  Jeffrey A Law  (law@cygnus.com)

	* pa.md (branch, negated branch): Handle (const_int 0) as first
	source operand.
	* pa.c (output_cbranch): Likewise.

Sun Jan  3 03:20:38 1999  David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.c (rs6000_stack_info): Undo spurious part of last
	change.

1999-01-01  Manfred Hollstein  <manfred@s-direktnet.de>

	* extend.texi (__builtin_constant_p): Add missing @smallexample.

Fri Jan  1 11:48:20 1999  Jeffrey A Law  (law@cygnus.com)

	* i386.md (doubleword shifts): Fix dumb mistakes in previous change.

Wed Dec 30 23:38:55 1998  Jeffrey A Law  (law@cygnus.com)

	* m68k.md (adddi_dilshr32): Allow all operands to be registers too.
	(adddi_dishl32): Similarly.

	* cse.c (invalidate_skipped_block): Call invalidate_from_clobbers
	for each insn in the skipped block.

	* reload1.c (reload_as_needed): Verify that the insn satisfies its
	constraints after replacing a register address with an autoincrement
	address for reload inheritance purposes.

	* i386.md (doubleword shifts): Avoid namespace pollution.

Wed Dec 30 23:00:28 1998  David O'Brien <obrien@NUXI.com>

	* configure.in (FreeBSD ELF): Needs special crt files.

Wed Dec 30 22:50:13 1998  Geoffrey Noer  <noer@cygnus.com>

	* i386/xm-cygwin.h: change DIR_SEPARATOR to forward slash.

1998-12-30  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* loop.c (check_dbra_loop): While reversing the loop, if the
	comparison value has a VOID mode use the mode of the other operand
	to compute the mask.

Wed Dec 30 22:24:00 1998  Michael Meissner  <meissner@cygnus.com>

	* rs6000.md ({save,restore}_stack_function): Take 2 operands to
	avoid warnings in compiling explow.c.

	(patch from Ken Raeburn, raeburn@cygnus.com)
	* rs6000.c (rs6000_stack_info): Force 8-byte alignment of
	fpmem_offset.  Compute total size after that, and then
	rs6000_fpmem_offset using both values.

Mon Dec 28 19:26:32 1998  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* gcc.texi (Non-bugs): ``Empty'' loops will be optimized away in
	the future; indeed that already happens in some cases.

Tue Dec 29 11:58:53 1998  Richard Henderson  <rth@cygnus.com>

	* sparc.c (input_operand): Recognize (const (constant_p_rtx)).
	(arith_operand): Remove constant_p_rtx handling.
	(const64_operand, const64_high_operand): Likewise.
	(arith11_operand, arith10_operand, arith_double_operand): Likewise.
	(arith11_double_operand, arith10_double_operand, small_int): Likewise.
	(small_int_or_double, uns_small_int, zero_operand): Likewise.
	* sparc.h (PREDICATE_CODES): Likewise.

	* rtl.h (CONSTANT_P): Remove CONSTANT_P_RTX.

Tue Dec 29 11:32:54 1998  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.

Tue Dec 29 11:30:10 1998  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.

	* alpha.c (reg_or_6bit_operand): Remove CONSTANT_P_RTX handling.
	(reg_or_8bit_operand, cint8_operand, add_operand): Likewise.
	(sext_add_operand, and_operand, or_operand): Likewise.
	(reg_or_cint_operand, some_operand, input_operand): Likewise.
	* alpha.h (PREDICATE_CODES): Likewise.

Sat Dec 26 23:26:26 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sat Dec 26 09:17:04 1998  Jeffrey A Law  (law@cygnus.com)

	* gengenrtl.c (gencode): Always use bzero to clear memory instead
	of dangerous casts and stores.

	* Makefile.in (compare, gnucompare): Add missing else true clauses.

Fri Dec 25 23:00:56 1998  Jeffrey A Law  (law@cygnus.com)

	* alpha.md (builtin_longjmp): Add missing "DONE".

Thu Dec 24 10:39:57 1998  Stan Cox  <scox@cygnus.com>

	* gcc.c (execute): Enable -pipe with win32.

Wed Dec 23 10:27:44 1998  Nick Clifton  <nickc@cygnus.com>

	* config/arm/t-arm-elf: Add multiplib option for leading
	underscores.

	* config/arm/thumb.h (ASM_OUTPUT_LABELREF): Use variable
        'user_label_prefix' rather than macro USER_LABEL_PREFIX.

	(thumb_shiftable_const): Use macro 'BASE_REG_CLASS' rather
	than variable 'reload_address_base_reg_class'.  [Note this
	change is unrelated to the others in this patch].

	* config/arm/unknown-elf.h (USER_LABEL_PREFIX): Default to no
        leading underscore.

Wed Dec 23 09:51:32 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* 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

Wed Dec 23 00:10:01 1998  Jeffrey A Law  (law@cygnus.com)

	* toplev.c (rest_of_compilation): Do not set reload_completed.
	* reload1.c (reload): Set reload_completed before calling
	cleanup_subreg_operands.

Tue Dec 22 23:58:31 1998  Richard Henderson  <rth@cygnus.com>

	* reload1.c (emit_reload_insns): Check `set' not null before use.

Tue Dec 22 15:15:45 1998  Nick Clifton  <nickc@cygnus.com>

	* rtlanal.c (multiple_sets): Change type of 'found' from 'rtx' to
	'int'. 

Tue Dec 22 13:55:44 1998  Theodore Papadopoulo <Theodore.Papadopoulo@sophia.inria.fr>

	* halfpic.c (half_pic_encode): Delete redundant code.

Tue Dec 22 13:02:22 1998  Michael Meissner  <meissner@cygnus.com>

	* toplev.c (main): Delete handling of -dM as a preprocessor
	option.

Mon Dec 21 17:39:38 1998  Michael Meissner  <meissner@cygnus.com>

	* toplev.c (main): Don't emit any warnings when using -dD, -dM, or
	-dI, which are handled by the preprocessor.

Sun Dec 20 16:13:44 1998  John F. Carr  <jfc@mit.edu>

	* configure.in: Handle Digital UNIX 5.x the same as 4.x.
	* i386/sol2.h: Define LOCAL_LABEL_PREFIX as ".".

Sun Dec 20 07:39:52 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sat Dec 19 22:24:22 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sat Dec 19 21:41:32 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sat Dec 19 09:52:27 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* genattr.c (fatal): Qualify a char* with the `const' keyword.
	
	* genattrtab.c (fatal, attr_printf, attr_string, write_attr_set,
 	write_unit_name, write_eligible_delay, expand_units,
 	make_length_attrs, write_attr_case, find_attr,
	make_internal_attr): Likewise.
	* gencheck.c (tree_codes): Likewise.
	* gencodes.c (fatal): Likewise.
	* genconfig.c (fatal): Likewise.
	* genemit.c (fatal): Likewise.
	* genextract.c (fatal, walk_rtx, copystr): Likewise.
	* genflags.c (fatal): Likewise.
	* genopinit.c (fatal, optabs, gen_insn): Likewise.
	* genoutput.c (fatal, error, predicates): Likewise.
	* genpeep.c (fatal): Likewise.
	* genrecog.c (fatal, decision, pred_table, add_to_sequence,
	write_tree_1, write_tree, change_state, copystr, indents): Likewise.

Thu Dec 17 18:21:49 1998  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* configure.in (with-fast-fixincludes): Fix whitespace.
	* configure: Rebuilt.

	* fixincludes (c_asm.h): Wrap Digital UNIX V4.0B DEC C specific
	asm() etc. function declarations in __DECC.

Thu Dec 17 13:57:23 1998  Nick Clifton  <nickc@cygnus.com>

	* expr.c (emit_move_insn_1): Only emit a clobber if the target
	is a pseudo register.

Thu Dec 17 13:50:29 1998  Nick Clifton  <nickc@cygnus.com>

	* gcse.c: Include expr.h in order to get the prototype for
	get_condition() which is used in delete_null_pointer_checks(). 

Thu Dec 17 15:58:26 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* hwint.h: New file to consolidate HOST_WIDE_INT (etc) macros.

Thu Dec 17 12:31:12 1998  Jim Wilson  <wilson@cygnus.com>

	* Makefile.in (INTERNAL_CFLAGS): Add SCHED_CFLAGS.
	(ALL_CFLAGS): Delete SCHED_CFLAGS.

1998-12-17  Vladimir N. Makarov  <vmakarov@cygnus.com>

	* config/i60/i960.md (extendqihi2): Fix typo (usage ',' instead of
	';').

1998-12-17  Michael Tiemann  <tiemann@axon.cygnus.com>

	* i960.md (extend*, zero_extend*): Don't generate rtl that looks
	like (subreg:SI (reg:SI N) 0), because it's wrong, and it hides
	optimizations from the combiner.

Thu Dec 17 08:27:03 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* loop.c (combine_givs_used_by_other): Don't depend on n_times_set.

Wed Dec 16 17:30:35 1998  Nick Clifton  <nickc@cygnus.com>

	* toplev.c (main): Disable optimize_size if a specific
	optimization level is requested.  Always set optimization
	level to 2 if -Os is specified.

Wed Dec 16 16:33:04 1998  Dave Brolley  <brolley@cygnus.com>

	* objc/lang-specs.h: Pass -MD, -MMD and -MG to cc1obj if configured with
	cpplib.
	* cpplib.c (cpp_start_read): If in_fname is not initialized, try to
	initialize it using fname.

1998-12-16  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* cpplib.c (do_include): Treat #include_next in the
	primary source file as #include plus warning.  Treat
	#include_next in a file included by absolute path as an
	error.  fp == CPP_NULL_BUFFER is a fatal inconsistency.

Wed Dec 16 12:28:54 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cccp.c: Don't define MIN/MAX anymore.
	* cpplib.c: Likewise.
	* machmode.h: Likewise.
	* system.h: Provide definitions for MIN/MAX.

Tue Dec 15 23:47:42 1998  Zack Weinberg  <zack@rabi.phys.columbia.edu>  

	* fix-header.c: Don't define xstrdup here.

Wed Dec 16 05:11:04 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* loop.c (consec_sets_giv): New argument last_consec_insn.
	(strength_reduce): Provide / use it.

Wed Dec 16 17:24:07 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.h (loop_info): New field 'vtop'.
	* loop.c (check_dbra_loop):  Use loop_info->vtop rather than
	scanning loop for vtop.
	* unroll.c (subtract_reg_term, find_common_reg_term): New functions.
	(loop_iterations): Use them to determine if loop has a constant
 	number of iterations.  Set loop_info->vtop.  Don't subtract
	common reg term from initial_value and final_value if have a
	do-while loop.

Tue Dec 15 13:49:55 1998  Jeffrey A Law  (law@cygnus.com)

	* mn10200.md (addsi3 expander): Use "nonmemory_operand" for operand 2.

	* mn10300.md (bset, bclr): Operand 0 is a read/write operand.

	* mn10200.md (abssf2, negsf2): New expanders.

	* mn10300.md (absdf2, abssf2, negdf2, negsf2): New expanders.

Tue Dec 15 11:55:30 1998  Nick Clifton  <nickc@cygnus.com>

	* integrate.c (copy_rtx_and_substitute): If a SUBREG is
	replaced by a CONCAT whoes components do not have the same
	mode as the original SUBREG, use a new SUBREG to restore the
	mode. 

	* emit-rtl.c (subreg_realpart_p): Cope with subregs containing
	multiword complex values.

1998-12-15  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* cppalloc.c: Add xstrdup here.
	* cpplib.h: Remove savestring prototype.
	* cpplib.c: Remove savestring function. s/savestring/xstrdup/
	  throughout. 
	* cppfiles.c: s/savestring/xstrdup/ throughout.

1998-12-15  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* cpplib.c: Make all directive handlers read their own
          arguments.
	  (struct directive): Remove last two arguments from FUNC
          member prototype. Remove `command_reads_line' member
          entirely.
	  (directive_table): Remove initializations of
          command_reads_line flag.  Pretty-print.
	  (eval_if_expression, do_define, do_line, do_include,
          do_undef, do_error, do_pragma, do_ident, do_if, do_xifdef,
          do_else, do_elif, do_sccs, do_assert, do_unassert,
          do_warning): Take only two args.

	  (cpp_define): Call do_define with two args and the text to
	  define stuffed into a buffer.
	  (make_assertion): Call do_assert with two args.
	  (handle_directive): Call do_line with two args. Call
	  kt->func with two args.  Remove command_reads_line
	  processing.
	  (do_define, do_undef, do_error, do_warning, do_pragma,
	  do_sccs): Read the rest of the line here.
	  (do_ident): Gobble rest of line, as cccp does.
	  (cpp_undef): New function.
	  (cpp_start_read): Call cpp_undef instead of do_undef.

1998-12-15  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* cpphash.h (union hash_value): Remove `keydef' member, add a
          `struct hashnode *aschain' member for #assert.  

	  * cpplib.c (struct tokenlist_list, struct
          assertion_hashnode): Delete structure definitions.
          (assertion_install, assertion_lookup, delete_assertion,
          check_assertion, compare_token_lists, reverse_token_list,
          read_token_list, free_token_list): Delete functions.
          (parse_assertion): New function.  
	  (cpp_cleanup): Don't destroy the assertion_hashtable.

          (do_assert): Gut and rewrite.  #assert foo (bar) places
          entries for `#foo' and `#foo(bar)' in the macro hash table,
          type T_ASSERT.  The value union's `aschain' member is used
          to chain all answers for a given predicate together.
          (do_unassert): Also rewritten.  Take an un-asserted
          answer off the chain from its predicate and call
          delete_macro on the hashnode, or walk a predicate chain
          calling delete_macro on all the entries.
          (cpp_read_check_assertion): Simply call parse_assertion to
          get the canonical assertion name, and look that up in the
          hash table.

	* cpplib.h (ASSERTION_HASHNODE,ASSERTION_HASHSIZE,assertion_hashtab):
 	Removed.

	* cpphash.c (install): Use bcopy instead of an explicit loop
          to copy the macro name.

	* cppexp.c (cpp_lex): Convert the result of
          cpp_read_check_assertion to a `struct operation' directly;
          don't go through parse_number.

Tue Dec 15 18:27:39 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* loop.h (struct induction): Delete times_used member.
	* loop.c (n_times_set): Rename to set_in_loop.  Changed all users.
	(n_times_used): Rename to n_times_set.  Changed all users.
	(scan_loop): Free reg_single_usage before strength reduction.
	(record_giv, combine_givs): Remove handling of times_used member.
	(combine_givs_used_once): Rename to:
	(combine_givs_used_by_other) .  Changed all callers.

Tue Dec 15 01:45:26 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* dwarf2out.c (gen_struct_or_union_type_die): Check AGGREGATE_TYPE_P
	instead of TREE_CODE_CLASS == 't'.
	(gen_type_die): Likewise.
	(scope_die_for): Ignore FUNCTION_TYPE "scopes".

Mon Dec 14 16:23:27 1998  Jim Wilson  <wilson@cygnus.com>

	* real.c (endian): Disable last change unless
	HOST_BITS_PER_WIDE_INT is greater than 32.

Mon Dec 14 17:13:36 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

	* output.h (force_data_section): New prototype.
	* varasm.c (force_data_section): New function to force the
	data section, regardless of what in_section thinks.
	* dwarf2out.c (output_call_frame_info): Call force_data_section
	since varasm may not realize we've changes sections.

Mon Dec 14 14:09:34 1998  Nick Clifton  <nickc@cygnus.com>

	* reload1.c (reload): Delete REG_RETVAL and REG_LIBCALL notes
          after completeing reload.

	* rtl.texi: Document that REG_RETVAL and REG_LIBCALL are
          deleted after reload.

Mon Dec 14 01:39:28 1998  Jeffrey A Law  (law@cygnus.com)

	* rtl.h (multiple_sets): Fix prototype.
	* rtlanal.c (multiple_sets): Fix return type.

Sun Dec 13 12:43:58 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sun Dec 13 01:05:22 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

1998-12-13  Manfred Hollstein  <manfred@s-direktnet.de>

	* protoize.c (fputs): Wrap extern declaration in #ifndef fputs.

Sun Dec 13 00:24:14 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* rtl.h (recompute_reg_usage): Add second argument.
	* flow.c (recompute_reg_usage): Likewise.
	* toplev.c (rest_of_compilation): Supply second argument to
	recompute_reg_usage.

	* reload1.c (compute_use_by_pseudos): Allow reg_renumber[regno] < 0
	after reload.

Sat Dec 12 23:39:10 1998  Jeffrey A Law  (law@cygnus.com)

	* m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcpu32.
	(MULTILIB_MATCHES): -m68332 now uses mcpu32 libraries, not m68000.
	(MULTILIB_EXCEPTIONS): Don't build 68881 libraries for m68000,
	mcpu32 or m5200.

	* i386/next.h (ASM_OUTPUT_ALIGN): Use 0x90 for fill character.

	* rtlanal.c (multiple_sets): New function.
	* rtl.h (multiple_sets): Declare it.
	* local-alloc.c (wipe_dead_reg): Use it.
	* global.c (global_conflicts): Likewise.

Sat Dec 12 22:13:02 1998  Mark Mitchell  <mark@markmitchell.com>

	* global.c (record_conflicts): Don't use an array of shorts to
        store an array of ints.
	(global_conflicts): Likewise.

Sat Dec 12 16:49:24 1998  Richard Henderson  <rth@cygnus.com>

	* alpha.c (alpha_expand_block_move): mode_for_size expects
	bits, not bytes.  Infer extra alignment from addressof.

1998-12-11  Michael Meissner  <meissner@cygnus.com>

	* rs6000/sysv4.h (ASM_OUTPUT_ALIGNED_LOCAL): Put small data in the
	.sbss section, not .sdata.

1998-12-11  Manfred Hollstein  <manfred@s-direktnet.de>

	* cccp.c: Do not #include <sys/stat.h> here; this is already done
	by "system.h".
	* collect2.c: Likewise.
	* cpplib.h: Likewise.
	* gcc.c: Likewise.
	* gcov.c: Likewise.
	* getpwd.c: Likewise.
	* protoize.c: Likewise.
	* toplev.c: Likewise.

	* cpplib.h (HOST_WIDE_INT): Get definition from "machmode.h"
	and don't try to define it here.
	* Makefile.in (cppmain.o): Depend on machmode.h.
	(cpplib.o): Likewise.
	(cpperror.o): Likewise.
	(cppexp.o): Likewise.
	(cppfiles.o): Likewise.
	(cpphash.o): Likewise.
	(cppalloc.o): Likewise.
	(fix-header.o): Likewise.
	(scan-decls.o): Likewise.

Fri Dec 11 11:02:49 1998  Stan Cox  <scox@cygnus.com>

	* sh.c (print_operand): lookup interrupt_handler attribute instead
	of relying on static variable. 
	* (calc_live_regs): Likewise.
	* (sh_pragma_insert_attributes): Create interrupt_handler
	attribute if a pragma was specified
	* (sh_valid_machine_decl_attribute): Don't set static flag.
	* sh.h (PRAGMA_INSERT_ATTRIBUTES): New.

Fri Dec 11 12:56:07 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* reload1.c (reload_combine): Use BASIC_BLOCK_LIVE_AT_START
	to determine if a register is live at a jump destination.
	Everything is dead at a BARRIER.

Thu Dec 10 16:02:06 1998  Jim Wilson  <wilson@cygnus.com>

	* 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.

Thu Dec 10 15:05:59 1998  Dave Brolley  <brolley@cygnus.com>

	* objc/objc-act.c (lang_init_options): Enclose cpplib related code in
	#if USE_CPPLIB.

Thu Dec 10 13:39:46 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* collect2.h: New header file for prototypes.

	* Makefile.in (collect2.o, tlink.o): Depend on collect2.h.

	* collect2.c: Include collect2.h.
	* tlink.c: Likewise.

Wed Dec  9 23:55:11 1998  Jeffrey A Law  (law@cygnus.com)

	* flow.c: Update some comments.

Wed Dec  9 15:29:26 1998  Dave Brolley  <brolley@cygnus.com>

	* objc/objc-act.c (cpp_initialized): Removed.
	(lang_init_options): Initialize cpplib.
	(lang_decode_option): Move initialization of cpplib to
	lang_init_options.
	* c-lang.c: (parse_options,parse_in): Added.
	(lang_init_options): Initialized cpplib here.
	* c-decl.c (parse_options,cpp_initialized): Removed.
	(c_decode_option): Move initialization of cpplib to
	lang_init_options.

Wed Dec  9 19:36:57 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* reload1.c (reload_combine, reload_combine_note_store):
	Make STORE_RUID always valid.
	(reload_combine): Check if BASE is clobbered too early.

Wed Dec  9 09:53:58 1998  Nick Clifton  <nickc@cygnus.com>

	* reload.c (find_reloads): Display the insn that cannot be
	reloaded. 

Wed Dec  9 12:15:26 1998  Dave Brolley  <brolley@cygnus.com>

	* cccp.c (create_definition): Fix end of bufer logic.

Wed Dec  9 10:15:45 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* except.c (duplicate_eh_handlers, rethrow_symbol_map): Function
	pointer parameters changed to use the PARAMS() macro.

Wed Dec  9 09:12:40 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

	* except.h (struct handler_info): Add handler_number field.
	* except.c (gen_exception_label): EH labels no longer need to be
	on the permanent obstack.
	(get_new_handler): Set the label number field.
	(output_exception_table_entry): Regenerate handler label reference 
	from the label number field.
	(init_eh): Remove a blank line.
	* integrate.c (get_label_from_map): Labels no longer need to be
	on the permanent obstack.

Tue Dec  8 22:04:33 1998  Jim Wilson  <wilson@cygnus.com>

	* i960/i960.h (CONST_COSTS, case CONST_INT): Accept power2_operand
	only when OUTER_CODE is SET.

Tue Dec  8 22:47:15 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* loop.c (strength_reduce): If scan_start points to the loop exit
	test, be wary of subversive use of gotos inside expression statements.
	Don't set maybe_multiple for a backward jump that does not
	include the label under consideration into its range.
	* unroll.c (biv_total_increment): Make use of maybe_multiple field.

Tue Dec  8 22:33:18 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* explow.c (plus_constant_wide): Don't immediately return with
	result of recursive call.

Tue Dec  8 15:32:56 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

	* eh-common.h (struct eh_context): Add table_index for rethrows.

	* rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes.
	(SYMBOL_REF_NEED_ADJUST): New flag indicating symbol needs to be
	processed when inlined or unrolled (ie duplicated in some way).

	* rtl.c (reg_note_name): Add strings for new reg_note enums.

	* expr.h (rethrow_libfunc): New library decl.

	* optabs.c (rethrow_libfunc): Initialize.

	* except.h (struct eh_entry): Add new field 'rethrow_label'.
	(new_eh_region_entry): No longer exported from except.c.
	(duplicate_handlers): Renamed to duplicate_eh_handlers and 
	different prototype.
	(rethrow_symbol_map, rethrow_used): New exported functions.
	(eh_region_from_symbol): New exported function.

	* except.c (create_rethrow_ref): New function to create a single
	SYMBOL_REF for a rethrow region.  
	(push_eh_entry): Initialize a rethrow ref.
	(func_eh_entry): Add a rethrow_label field.
	(new_eh_region_entry): Make static, and initialize the rethrow entry.
	(duplicate_eh_handlers): Create a new region, and remap labels/symbols.
	(eh_region_from_symbol): Find an EH region based on its rethrow symbol.
	(rethrow_symbol_map): Given a label map, maps a rethrow symbol for 
	a region into an appropriate new symbol.
	(rethrow_used): Indicate whether a rethrow symbol has been referenced.
	(expand_eh_region_end): Don't issue jump around code for new-exceptions.
	(end_catch_handler): Emit a barrier for new-exceptions since 
	control can never drop through the end of a catch block.
	(expand_end_all_catch): new-exceptions never fall through a catch 
	block.
	(expand_rethrow): use __rethrow routine for new exceptions.
	(output_exception_table_entry): Generate rethrow labels, if needed.
	(output_exception_table): Generate start and end rethrow labels.
	(init_eh): Create rethrow symbols for beginning and end of table.
	(scan_region): Don't eliminate EH regions which are the targets of
	rethrows.

	* flow.c (make_edges): Add different edges for rethrow calls, 
	identified by having the REG_EH_RETHROW reg label.
	(delete_unreachable_blocks): Don't delete regions markers which are 
	the target of a rethrow.

	* integrate.c (save_for_inline_eh_labelmap): New callback routine to 
	allow save_for_inline_copying to call duplicate_eh_handlers.
	(save_for_inline_copying): Call duplicate_eh_handlers instead of
	exposing internal details of exception regions.
	(copy_for_inline): Check if SYMBOL_REFs need adjustment.
	(expand_inline_function_eh_labelmap):  New callback routine to 
	allow expand_inline_function to call duplicate_eh_handlers.
	(expand_inline_function): Call duplicate_eh_handlers instead of
	exposing internal details of exception regions.
	(copy_rtx_and_substitute): Adjust SYMBOL_REFS if SYMBOL_REF_NEED_ADJUST
	flag is set.

	* libgcc2.c (find_exception_handler): Generalize to enable it to
	pick up processing where it left off last time for a rethrow.
	(__unwinding_cleanup): New function. debug hook which is called before
	unwinding when __throw finds there is nothing but cleanups left.
	(throw_helper): Common parts of __throw extracted out for reuse.
	(__throw): Common parts moved to throw_helper.
	(__rethrow): New function for performing rethrows.

Tue Dec  8 13:11:04 1998  Jeffrey A Law  (law@cygnus.com)

	* reload1.c (current_function_decl): Tweak declaration.

Tue Dec  8 10:23:52 1998  Richard Henderson  <rth@cygnus.com>

	* c-decl.c (flag_isoc9x): Default off.
	(c_decode_option): Kill -std=gnu, add -std=gnu89 and -std=gnu9x.
	* cccp.c (print_help, main): Likewise.
	* gcc.c (default_compilers): Update for -std=gnu*.

Tue Dec  8 01:14:46 1998  Jeffrey A Law  (law@cygnus.com)

	* Makefile.in (DEMANGLE_H): Change location to shared demangle.h.
	* demangle.h: Deleted.

	* reload1.c (current_function_decl): Declare.

Tue Dec  8 11:58:51 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cpplib.c (convert_string): Use `0x00ff', not `0x00ffU'.

Tue Dec  8 09:28:36 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* dbxout.c: If USG is defined use gstab.h, even if HAVE_STAB_H is set.

1998-12-08  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Test for availability of putc_unlocked, fputc_unlocked,
	and fputs_unlocked.
	* configure: Rebuilt.
	* system.h: If the *_unlocked functions are available use them
	instead of the locked counterparts by defining macros.
	* config.in: Regenerated.

Tue Dec  8 00:34:05 1998  Mike Stump  <mrs@wrs.com>

	* i386/bsd.h (ASM_FILE_START): Don't use dump_base_name, it is
	wrong and should only be used for dump related things, not
	debugging information, instead main_input_filename should be used.
	Also, reuse output_file_directive if possible.
	* i386/aix386ng.h (ASM_FILE_START): Likewise.
	* i386/isc.h (ASM_FILE_START): Likewise.
	* i386/win-nt.h (ASM_FILE_START): Likewise.
	* i386/sun386.h (ASM_FILE_START): Likewise.

Mon Dec  7 23:56:28 1998   Robert Lipe  <robertl@dgii.com>

	* configure.in (mips*-*-linux*): Handle big and little endian
	systems.
	* configure: Rebuilt.

Mon Dec  7 23:14:51 1998  Mike Stump <mrs@wrs.com>

	* emit-rtl.c: Fix typo.

Mon Dec  7 23:07:38 1998  Nathan Sidwell  <nathan@acm.org>

	* reload1.c (eliminate_regs): Don't do anything, if we're not
	generating code.

Mon Dec  7 15:27:09 1998  DJ Delorie  <dj@cygnus.com>

	* mips/mips.h (ENCODE_SECTION_INFO): Handle TARGET_EMBEDDED_DATA.
	Add comment.
	* mips/mips.c (mips_select_section): Add comment.

Mon Dec  7 17:55:06 1998  Mike Stump  <mrs@wrs.com>

	* cccp.c (ignore_escape_flag): Add support for \ as `natural'
	characters in file names in #line to be consistent with #include
	handling.  We support escape prcessing in the # 1 "..." version of
	the command.  See also support in cp/lex.c.
	(handle_directive): Likewise.
	(do_line): Likewise.
	
1998-12-07  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* cpplib.c (initialize_char_syntax): Use ISALPHA and ISALNUM
          so it'll work on non-ASCII platforms.  Always consider $ an
          identifier character.  Take no arguments.
	  (cpp_reader_init): Call initialize_char_syntax with no
          arguments.
	  (cpp_start_read): Don't call initialize_char_syntax again.
          Clear is_idchar['$'] and is_idstart['$'] if not
          opts->dollars_in_ident.

	* cpplib.h (struct cpp_reader): Replace void *data element by
          cpp_options *opts.  Rearrange elements to make gdb printout
          less annoying (put buffer stack at end).
	  (CPP_OPTIONS): Get rid of now-unnecessary cast.

	* cppmain.c: s/data/opts/ when initializing cpp_reader
          structure.
	* c-decl.c: Likewise.
	* objc/objc-act.c: Likewise.
	* fix-header.c: Likewise.

1998-12-07  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* cpplib.h (struct cpp_buffer): Replace dir and dlen members
	with a struct file_name_list pointer.
	(struct cpp_reader): Add pointer to chain of `actual
	directory' include searchpath entries.
	(struct file_name_list): Add *alloc pointer for the sake of
	the actual-directory chain.

	Move definition of HOST_WIDE_INT here.
	(cpp_parse_escape): Change prototype to match changes in
	cppexp.c.

	* cppfiles.c (actual_directory): New function.
	(finclude): Use it to initialize the buffer's actual_dir
	entry.
	(find_include_file): We don't need to fix up max_include_len
	here.

	* cpplib.c (do_include): Don't allocate a file_name_list on
	the fly for current directory "" includes, use the one that's
	been preallocated in pfile->buffer->actual_dir.  Hoist out
	duplicate code from the search_start selection logic.
	(cpp_reader_init): Initialize pfile->actual_dirs.

	Remove definition of HOST_WIDE_INT.  Change calls
	to cpp_parse_escape to match changes in cppexp.c (note
	hardcoded MASK, which is safe since this is the source
	character set).

	* cppexp.c: Bring over changes to cpp_parse_escape from cccp.c
	to handle wide character constants in #if directives.  The
	function now returns a HOST_WIDE_INT, and takes a third
	argument which is a binary mask for all legal values (0x00ff
	for 8-bit `char', 0xffff for 16-bit `wchar_t', etc.)  Define
	MAX_CHAR_TYPE_MASK and MAX_WCHAR_TYPE_MASK.  Change callers of
	cpp_parse_escape to match.  [Fixes c-torture/execute/widechar-1.c]

Mon Dec  7 15:38:25 1998  Dave Brolley  <brolley@cygnus.com>

	* gcc.c (default_compilers): Fix typo in USE_CPPLIB spec for cc1.

Mon Dec  7 15:38:25 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-aux-info.c (concat): Wrap function definition in !USE_CPPLIB.
        * cppalloc.c: Move function `xcalloc' from cpplib.c to here.
        * cpplib.c: Move function `xcalloc' from here to cppalloc.c.

Mon Dec  7 11:30:49 1998  Nick Clifton  <nickc@cygnus.com>

	* final.c (output_asm_name): Use tabs to seperate comments from
	assembly text.
	
	Include instruction lengths (if defined) in output.

Mon Dec  7 10:53:38 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.c (check_dbra_loop): Fix initial_value and initial_equiv_value
	in the loop_info structure.
	
Mon Dec  7 11:04:40 1998  Catherine Moore  <clm@cygnus.com>
 
        * configure.in:  (arm*-*-ecos-elf):  New target.
        * configure:  Regenerated.
        * config/arm/elf.h (ASM_WEAKEN_LABEL):  Define.
        * config/arm/ecos-elf.h:  New file.
        * config/arm/unknown-elf.h (TARGET_VERSION):  Check
        for redefinition.
 
Mon Dec  7 16:15:51 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.c (output_far_jump): Emit braf only for TARGET_SH2.

Sun Dec 6 04:19:45 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sun Dec  6 05:16:16 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.c (check_dbra_loop): New argument loop_info.  Update fields
	as needed.

Sun Dec 6 03:40:13 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sun Dec  6 07:49:29 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

	* gcc.texi (Bug Reporting): 40Kb is a soft limit, larger
	compressed reports are ok and preferred over URLs

Sun Dec  6 07:45:33 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

	* invoke.texi (Warning Options): Soften the tone of -pedantic

Sun Dec  6 00:20:44 1998  H.J. Lu  (hjl@gnu.org)

	* print-rtl.c (print_rtx): Add prototype.

	* unroll.c (iteration_info): Make it static.

Sun Dec  6 01:19:46 1998  Richard Henderson  <rth@cygnus.com>

	* alias.c (memrefs_conflict_p): A second ANDed address
	disables the aligned address optimization.

Sat Dec  5 18:48:25 1998  Richard Henderson  <rth@cygnus.com>

	* alpha.c (alpha_emit_set_const_1): Fix parenthesis error
	in -c << n case.

Sat Dec  5 15:14:52 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* i960.h (BOOL_TYPE_SIZE): Define.

Sun Dec  6 00:28:16 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (valid_parallel_load_store): Flog functionality
	from old valid_parallel_operands_4.
	(valid_parallel_operands_4): Check that operands for 4 operand
	parallel insns are valid, excluding load/store insns.
	* config/c4x/c4x.h (valid_parallel_load_store): Add prototype.
	* config/c4x/c4x.md (*movqf_parallel, *movqi_parallel): Use
	valid_parallel_load_store instead of valid_parallel_operands_4.
	(*absqf2_movqf_clobber, *floatqiqf2_movqf_clobber, 
	*negqf2_movqf_clobber, *absqi2_movqi_clobber,
	*fixqfqi2_movqi_clobber, *negqi2_movqi_clobber,
	*notqi_movqi_clobber): Use valid_parallel_operands_4.
	(*subqf3_movqf_clobber, *ashlqi3_movqi_clobber,
	*ashrqi3_movqi_clobber, *lshrqi3_movqi_clobber,
	*subqi3_movqi_clobber): Use valid_parallel_operands_5.

Sat Dec  5 23:52:01 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (iteration_info): Delete extern.

Fri Dec  4 20:15:57 1998  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>

	* tm.texi (SMALL_REGISTER_CLASSES): Make description match reality.

	* final.c (cleanup_subreg_operands): Delete some unused code.

	* recog.h (MAX_RECOG_ALTERNATIVES): New macro.
	(struct insn_alternative): New structure definition.
	(recog_op_alt): Declare variable.
	(preprocess_constraints): Declare function.
	* recog.c (recog_op_alt): New variable.
	(extract_insn): Verify number of alternatives is in range.
	(preprocess_constraints): New function.
	* reg-stack.c: Include recog.h.
	(constrain_asm_operands): Delete.
	(get_asm_operand_lengths): Delete.
	(get_asm_operand_n_inputs): New function.
	(record_asm_reg_life): Delete OPERANDS, CONSTRAINTS, N_INPUTS and
	N_OUTPUTS args.  All callers changed.
	Compute number of inputs and outputs here by calling
	get_asm_operand_n_inputs.
	Instead of constrain_asm_operands, call extract_insn,
	constrain_operands and preprocess_constaints.  Use information
	computed by these functions throughout.
	(record_reg_life): Delete code that is unused due to changes in
	record_asm_reg_life.
	(subst_asm_stack_regs): Delete OPERANDS, OPERAND_LOC, CONSTRAINTS,
	N_INPUTS and N_OUTPUTS args.  All callers changed.
	Similar changes as in record_asm_reg_life.
	(subst_stack_regs): Move n_operands declaration into the if statement
	where it's used.
	Delete code that is unused due to changes in subst_asm_stack_regs.
	* stmt.c (expand_asm_operands): Verify number of alternatives is in
	range.
	* Makefile.in (reg-stack.o): Depend on recog.h.

Fri Dec  4 02:23:24 1998  Jeffrey A Law  (law@cygnus.com)

	* except.c (set_exception_version_code): Argument is an "int".

Fri Dec  4 01:29:28 1998  Jeffrey A Law  (law@cygnus.com)

	* configure.in (hppa2*-*-*): Handle like hppa1.1-*-* for now.
	* configure: Rebuilt.

Fri Dec  4 01:29:28 1998  Robert Lipe  <robertl@dgii.com>

	* configure.in (mipsel-*-linux*): New target.
	* mips/linux.h: New file, based on other Linux targets.

Thu Dec  3 11:19:50 1998  Mike Stump  <mrs@wrs.com>

	* gthr-vxworks.h (__ehdtor): Fix memory leak.  The delete hook
	runs in the context of the deleter, not the deletee, so we must
	use taskVarGet to find the correct memory to free.
	(__gthread_key_create): Initialize the task
	variable subsystem so that the task variable is still active when
	the delete hook is run.

1998-12-03  Joseph S. Myers  <jsm28@cam.ac.uk>

	* pdp11.h: Use optimize_size for space optimizations.
	* pdp11.c: Likewise.
	* pdp11.md: Likewise.

	* pdp11.h (TARGET_40_PLUS): Fix typo.

Thu Dec  3 11:48:32 1998  Jeffrey A Law  (law@cygnus.com)

	* local-alloc.c (block_alloc): Slightly retune heuristic to widen 
	qty lifetimes.

Thu Dec  3 22:30:18 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* alias.c (addr_side_effect_eval): New function.
	(memrefs_conflict_p): Use it.
	* rtl.h (addr_side_effect_eval): Prototype it.

1998-12-02  Joseph S. Myers  <jsm28@cam.ac.uk>

	* pdp11.md (extendsfdf2): Fix mode mismatch in SET.

Wed Dec  2 11:23:07 1998  Jim Wilson  <wilson@cygnus.com>

	* reload.c (find_reloads): When force const to memory, put result
	in substed_operand not *recog_operand_loc.

1998-12-02  Ulrich Drepper  <drepper@cygnus.com>

	* c-lex.c: Fix indentation from last patch.
	Remove trailing whitespace.
	* real.c: Likewise.

Wed Dec  2 10:11:12 1998  Jeffrey A Law  (law@cygnus.com)

	* flow.c (delete_block): Call set_last_insn after we have reset
	NEXT_INSN (kept_tail).

Wed Dec  2 00:47:31 1998  Jeffrey A Law  (law@cygnus.com)

	* mips.md (trap_if): Use "$0" for the value zero.

Tue Dec  1 20:49:49 1998  Ulrich Drepper  <drepper@cygnus.com>
			  Stephen L Moshier  <moshier@world.std.com>
			  Richard Henderson  <rth@cygnus.com>

	* c-common.c (declare_function_name): Declare predefinied variable
	`__func__'.

	* c-decl.c (flag_isoc9x): Set to 1 by default.
	(c_decode_option): Handle -std= option.  Remove -flang-isoc9x.
	(grokdeclarator): Always emit warning about implicit int for ISO C 9x.

	* c-parse.in: Allow constructors in ISO C 9x.
	Rewrite designator list handling.
	Allow [*] parameters.
	Don't warn about comma at end of enum definition for ISO C 9x.

	* cccp.c (c9x): New variable.
	(rest_extension): New variable.
	(print_help): Document new -std= option.
	(main): Recognize -std= option.  Set c9x appropriately.
	(create_definition): Recognize ISO C 9x vararg macros.

	* gcc.c (default_compilers): Adjust specs for -std options.
	(option_map): Add --std.
	(display_help): Document -std.

	* toplev.c (documented_lang_options): Add -std and remove
	-flang-isoc9x.
        
	* c-lex.c (yylex): Recognize hex FP constants and call REAL_VALUE_ATOF
	or REAL_VALUE_HTOF based on base of the constants.
	* fold-const.c (real_hex_to_f): New function.  Replacement function
	for hex FP conversion if REAL_ARITHMETIC is not defined.
	* real.c (asctoeg): Add handling of hex FP constants.
	* real.h: Define REAL_VALUE_HTOF if necessary using ereal_atof or
	real_hex_to_f.

Tue Dec  1 16:45:49 1998  Stan Cox  <scox@cygnus.com>

	* mips.md (divmodsi4*, divmoddi4*, udivmodsi4*, udivmoddi4): Add
	-mcheck-range-division/-mcheck-zero-division checking.  Avoid as macro
	expansion.  Use hi/lo as destination register.
	(div_trap): New.
	(divsi3*, divdi3*, modsi3*, moddi3*, udivsi3*, udivdi3*, umodsi3*,
	umoddi3*): Add -mcheck-range-division/-mcheck-zero-division checking.
	Avoid as macro expansion.  Use hi/lo as destination register. 

	* mips.h (MASK_CHECK_RANGE_DIV): New.
	(MASK_NO_CHECK_ZERO_DIV): New.
	(ELIMINABLE_REGS): Added GP_REG_FIRST + 31.
	(CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): Allow for getting
	return address for leaf functions out of r31 to support
	builtin_return_address. 
	
Tue Dec  1 15:03:30 1998  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* jump.c (jump_optimize): Call regs_set_between_p with PREV_INSN(x),
	NEXT_INSN(x) to check insn x.
	
Tue Dec  1 15:20:44 1998  Jeffrey A Law  (law@cygnus.com)

	* flow.c (delete_block): Call set_last_insn if we end up deleting the
	last insn in the rtl chain.

	* reload1.c (reload): Do not set reload_completed or split insns
	here.  Instead...
	* toplev.c (rest_of_compilation): Set reload_completed after
	reload returns.  Split insns after reload_cse has run.

Tue Dec  1 11:55:04 1998  Richard Henderson  <rth@cygnus.com>

	* final.c (final_scan_insn): Abort if block_depth falls below 0.

Tue Dec  1 10:23:16 1998  Nick Clifton  <nickc@cygnus.com>

	* config/arm/t-arm-elf (LIBGCC2_CFLAGS): Define inhibit_libc.

Tue Dec  1 10:22:18 1998  Nick Clifton  <nickc@cygnus.com>

	* config/arm/unknown-elf.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Remove
	use of user-label_prefix.

Tue Dec  1 17:58:26 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* reload1.c (emit_reload_insns): Clear spill_reg_store
	when doing a new non-inherited reload from the same pseudo.

	* local-alloc.c (function_invariant_p): New function.
	(update_equiv_regs): Use function_invariant_p instead of CONSTANT_P
	to decide if an equivalence should be recorded.
	* reload1.c (num_eliminable_invariants): New static variable.
	(reload): Set it.  Use function_invariant_p instead of CONSTANT_P
	to decide if an equivalence should be recorded.
	Unshare PLUS.
	(calculate_needs_all_insns): Skip insns that only set an equivalence.
	Take num_eliminable_invariants into account when deciding
	if register elimination should be done.
	(reload_as_needed): Take num_eliminable_invariants into account
	when deciding if register elimination should be done.
	(eliminate_regs): Handle non-constant reg_equiv_constant.
	* rtl.h (function_invariant_p): Declare.

Mon Nov 30 02:00:08 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Mon Nov 30 00:42:59 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sun Nov 29 22:59:40 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* except.c (add_new_handler): Complain about additional handlers
	after one that catches everything.

Sat Nov 28 10:56:32 1998  Jeffrey A Law  (law@cygnus.com)

	* configure.in (alpha*-*-netbsd): Fix typo.
	* configure: Rebuilt.

Fri Nov 27 12:28:56 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* system.h: Include libiberty.h.

	* c-aux-info.c: Remove prototypes for concat/concat3.  Change
	function `concat' from fixed parameters to variable parameters,
	as is done in libiberty.  All callers of concat/concat3
	changed to use the new `concat' with variable args.

	* cccp.c: Remove things made redundant by libiberty.h and/or
	conform to libiberty standards.
	* cexp.y: Likewise.
	* collect2.c: Likewise.
	* config/1750a/1750a.h: Likewise.
	* cppalloc.c: Likewise.
	* cppexp.c: Likewise.
	* cppfiles.c: Likewise.
	* cpphash.c: Likewise.
	* cpplib.c: Likewise.
	* dyn-string.c: Likewise.
	* fix-header.c: Likewise.
	* gcc.c: Likewise.
	* gcov.c: Likewise.
	* genattr.c: Likewise.
	* genattrtab.c: Likewise.
	* gencheck.c: Likewise.
	* gencodes.c: Likewise.
	* genconfig.c: Likewise.
	* genemit.c: Likewise.
	* genextract.c: Likewise.
	* genflags.c: Likewise.
	* gengenrtl.c: Likewise.
	* genopinit.c: Likewise.
	* genoutput.c: Likewise.
	* genpeep.c: Likewise.
	* genrecog.c: Likewise.
	* getpwd.c: Likewise.
	* halfpic.c: Likewise.
	* hash.c: Likewise.
	* mips-tdump.c: Likewise.  Wrap malloc/realloc/calloc prototypes
	in NEED_DECLARATION_* macros.

	* mips-tfile.c: Remove things made redundant by libiberty.h and/or
	conform to libiberty standards.
	(fatal): Fix const-ification of variable `format' in
	!ANSI_PROTOTYPES case.

	* prefix.c: Remove things made redundant by libiberty.h and/or
	conform to libiberty standards.

	* print-rtl.c: Rename variable `spaces' to `xspaces' to avoid
	conflicting with function `spaces' from libiberty.

	* profile.c: Remove things made redundant by libiberty.h and/or
	conform to libiberty standards.
	* protoize.c: Likewise.
	* rtl.h: Likewise.
	* scan.h: Likewise.
	* tlink.c: Likewise.
	* toplev.c: Likewise.
	* toplev.h: Likewise.
	* tree.h: Likewise.

Thu Nov 26 08:38:06 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cppfiles.c (simplify_pathname): Un-ANSI-fy function definition.

Thu Nov 26 23:45:37 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* README.C4X: Updated URLs.
	* config/c4x/c4x.c (c4x_address_conflict): Fix typo.
	(valid_parallel_operands_5): Remove unused variable.

Thu Nov 26 23:40:03 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (TARGET_DEFAULT): Fix typo.

1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>

	* Makefile.in (CONFIG_LANGUAGES): New macro taking all languages
	which can be configured.
	(LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
	(Makefile): Pass actual LANGUAGES through the environment when
	re-configuring.
	(cstamp-h): Likewise.
	(config.status): Likewise.

	* configure.in (enable_languages): Add new configuration parameter
	"--enable-languages=lang1,lang2,...".
	(${srcdir}/*/config-lang.in): Change handling to configure only
	those directories, that the user might have enabled; default to
	"all" existing languages.
	* configure: Regenerate.

Thu Nov 26 00:19:19 1998  Richard Henderson  <rth@cygnus.com>

	* rtlanal.c (regs_set_between_p): New function.
	* rtl.h (regs_set_between_p): Prototype it.
	* jump.c (jump_optimize): Use it instead of modified_between_p
	in the Sep 2 change.

Wed Nov 25 23:32:02 1998  Ian Dall  <Ian.Dall@dsto.defence.gov.au>
			  Matthias Pfaller  <leo@dachau.marco.de>

	* invoke.texi (Option Summary, NS32K Options): add description
 	of NS32K specific options.

	* ns32k.md (tstdf, cmpdf, movdf, truncdfsf2, fixdfqi2, fixdfhi2,
 	fixdfsi2, fixunsdfqi2, fixunsdfhi2, fixunsdfsi2, fix_truncdfqi2,
 	fix_truncdfhi2, fix_truncdfsi2, adddf3, subdf3, muldf3, divdf3,
 	negdf2, absdf2): Use l instead of f since the double class and
 	float class are no longer the same.
	(cmpsi, truncsiqi2, truncsihi2, addsi3, subsi3, mulsi3, umulsidi3,
 	divsi3, modsi3, andsi3, iorsi3, xorsi3, negsi2, one_cmplsi2,
 	ashlsi3, ashlhi3, ashlqi3, rotlsi3, rotlhi3, rotlqi3, abssi2,...):
 	use "g" instead of "rmn" since LEGITIMATE_PIC_OPERAND has been
 	fixed.
	(cmpsi, cmphi, cmpqi): use general_operand instead of
 	non_immediate_operand. Removes erroneous assumption that can't
 	compare constants.
	(movsf, movsi, movhi, movqi,...): New register numbering scheme.
	(movsi, addsi3): Use NS32K_DISPLACEMENT_P instead of hard coded
 	constants.
	(movstrsi, movstrsi1, movstrsi2): completely new block move
 	scheme.
	(...): Patterns to exploit multiply-add instructions.
	(udivmodsi4, udivmodsi_internal4, udivmodhi4,
 	udivmoddihi4_internal, udivmodqi4, udivmoddiqi4_internal): new
 	patterns to exploit extended divide insns.
	(udivsi3, udivhi3, udivqi3): remove since superceded by udivmodsi
	etc patterns.

	* ns32k.h (FUNCTION_VALUE, LIBCALL_VALUE): Use f0 for complex
 	float return values as well as simple scalar floats.
	(TARGET_32381, TARGET_MULT_ADD, TARGET_SWITCHES):
 	support new flag to denote 32381 fpu.
	(OVERRIDE_OPTIONS): 32381 is a strict superset of 32081.
	(CONDITIONAL_REGISTER_USAGE): disable extra 32381 registers if not
 	compling for 32381.
	(FIRST_PSEUDO_REGISTER, FIXED_REGISTERS, CALL_USED_REGISTERS,
 	REGISTER_NAMES, ADDITIONAL_REGISTER_NAMES, OUTPUT_REGISTER_NAMES,
 	REG_ALLOC_ORDER, DBX_REGISTER_NUMBER, R0_REGNUM, F0_REGNUM,
 	L1_REGNUM, STACK_POINTER_REGNUM, FRAME_POINTER_REGNUM,
 	LONG_FP_REGS_P, ARG_POINTER_REGNUM, reg_class, REG_CLASS_NAMES,
 	REG_CLASS_CONTENTS, SUBSET_P,REGNO_REG_CLASS,
 	REG_CLASS_FROM_LETTER, FUNCTION_PROLOGUE, FUNCTION_EPILOGUE,
 	REGNO_OK_FOR_INDEX_P, FP_REG_P, REG_OK_FOR_INDEX_P,
 	REG_OK_FOR_BASE_P, MEM_REG): new register scheme to include 32381
 	fpu registers and special register classes for new 32381
 	instructions dotf and polyf.
	(MODES_TIEABLE_P): Allow all integer modes, notably DI and SI, to
 	be tieable.
	(INCOMING_RETURN_ADDR_RTX, RETURN_ADDR_RTX,
 	INCOMING_FRAME_SP_OFFSET): New macros in case DWARF support is
 	required.
	(SMALL_REGISTER_CLASSES): Make dependant on -mmult-add option.
	(MOVE_RATIO): Set to zero because of smart movstrsi implimentation.
	(REGISTER_MOVE_COST): move code to register_move_cost function for
	ease of coding and debugging.
	(CLASS_LIKELY_SPILLED_P): Under new register scheme class
 	LONG_FLOAT_REGO is likely spilled but not caught by default
 	definition.
	(CONSTANT_ADDRESS_P, CONSTANT_ADDRESS_NO_LABEL_P): use macro
 	instead of hard coded numbers in range check.
	(ASM_OUTPUT_LABELREF_AS_INT): delete since unused.
	(...): Add prototypes for functions in ns32k.c but disable because
	of problems when ns32k.h is included in machine independant files.
	
	* ns32k.c: include "system.h", "tree.h", "expr.h", "flags.h".
	(ns32k_reg_class_contents, regcass_map, ns32k_out_reg_names,
 	hard_regno_mode_ok, secondary_reload_class,
 	print_operand, print_operand_address): new register scheme to
 	include 32381 fpu registers and special register classes for new
 	32381 instructions dotf and polyf.
	(gen_indexed_expr): Make static to keep namespace clean.
	(check_reg): remove since never called.
	(move_tail, expand_block_move): helper functions for "movstrsi"
 	block move insn.
	(register_move_cost): Helper function for REGISTER_MOVE_COST macro.
	Increase cost of moves which go via memory.
	* netbsd.h (TARGET_DEFAULT): Set (new) 32381 fpu flag.
	(CPP_PREDEFINES): nolonger predefine "unix".

	* ns32k.md (movsi, movsi, adddi3, subdi3, subsi3, subhi3, subqi3,...):
 	Remove erroneous %$. print_operand() can work out from the rtx is
 	an immediate prefix is required.

	* ns32k.h (RETURN_POPS_ARGS, VALID_MACHINE_DECL_ATTRIBUTE,
 	VALID_MACHINE_TYPE_ATTRIBUTE, COMP_TYPE_ATTRIBUTES,
 	SET_DEFAULT_TYPE_ATTRIBUTES): Support for -mrtd calling
 	convention.
	(LEGITIMATE_PIC_OPERAND_P, SYMBOLIC_CONST): Correct handling of
 	pic operands.

	* ns32k.c (symbolic_reference_mentioned_p, print_operand):
	Correct handling of pic operands.
	(ns32k_valid_decl_attribute_p, ns32k_valid_type_attribute_p,
 	ns32k_comp_type_attributes, ns32k_return_pops_args): Support for
	-mrtd calling convention.

Wed Nov 25 23:42:20 1998  Tom Tromey  <tromey@cygnus.com>

	* gcc.c (option_map): Recognize --output-class-directory.

Thu Nov 26 18:26:21 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

 	* loop.h (precondition_loop_p): Added new mode argument.
	* unroll.c (precondition_loop_p): Likewise.
	(approx_final_value): Function deleted and subsumed
 	into loop_iterations.
	(loop_find_equiv_value): New function.
	(loop_iterations): Use loop_find_equiv_value to find increments
	too large to be immediate constants.  Also use it to find terms
	common to initial and final iteration values that can be removed.

Thu Nov 26 18:05:04 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.h (struct loop_info): Define new structure.
	(precondition_loop_p): Added prototype.
	(unroll_loop): Added new argument loop_info to prototype.
	(final_biv_value, final_giv_value): Added new argument n_iterations
	to prototype.
	* loop.c (strength_reduce): Declare new structure loop_iteration_info
	and new pointer loop_info.
	(loop_n_iterations): Replace global variable by element in 
	loop_info structure.
	(check_final_value): New argument n_iterations.
	(insert_bct): New argument loop_info.
	(loop_unroll_factor): Replace global array by element in 
	loop_info structure.
	(loop_optimize): Remove code to allocate and initialise 
	loop_unroll_factor_array.
	* unroll.c (precondition_loop_p):  No longer static since
	used by branch on count optimization.
	(precondition_loop_p, unroll_loop): New argument loop_info.
	(final_biv_value, final_giv_value, find_splittable_regs): New
	argument n_iterations.
	(loop_iteration_var, loop_initial_value, loop_increment, 
	loop_final_value, loop_comparison_code, loop_unroll_factor): 
	Replaced global variables by loop_info structure.
	(loop_unroll_factor): Replace global array by element in
	loop_info structure.

Thu Nov 26 17:49:29 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
	when loop reversed.

	* unroll.c (precondition_loop_p): Return loop_initial_value
	for initial_value instead of loop_iteration_var.

Thu Nov 26 17:15:38 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md: Fix minor formatting problems.  Update docs.
	(*b, *b_rev, *b_noov, *b_noov_rev, *db, 
	decrement_and_branch_until_zero, rptb_end): Use c4x_output_cbranch
	to output the instruction sequences.
	(rpts): Delete.
	(rptb_top): Provide alternatives to use any register or memory
	for loop counter.
	(rptb_end):  Emit use of operands rather than assigning them
	explicitly to the RS and RE registers.

Thu Nov 26 16:37:59 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_modified_between_p, c4x_mem_set_p,
 	c4x_mem_set_p, c4x_mem_modified_between_p, c4x_insn_moveable_p,
	c4x_parallel_pack, c4x_parallel_find, c4x_update_info_reg,
	c4x_update_info_regs, c4x_copy_insn_after, c4x_copy_insns_after, 
	c4x_merge_notes, c4x_parallel_process, 
	c4x_combine_parallel_independent, c4x_combine_parallel_dependent,
	c4x_combine_parallel): Delete.

Thu Nov 26 15:16:05 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c: (c4x_override_options): For compatibility
	with old target options clear flag_branch_on_count_reg if
	-mno-rptb specified and set flag_argument_alias is -mno-aliases
	specified.
	(c4x_output_cbranch): Handle a sequence of insns rather than a
 	single insn.
	(c4x_rptb_insert): Do not emit a RPTB insn if the RC register
	has not been allocated as the loop counter.
	(c4x_address_conflict): Do not allow two volatile memory references.
	(valid_parallel_operands_4, valid_parallel_operands_5,
 	valid_parallel_operands_6): Reject pattern if the register destination
	of the first set is used as part of an address in the second set.

Thu Nov 26 14:56:32 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (TARGET_DEFAULT): Add PARALEL_MPY_FLAG.
	(TARGET_SMALL_REG_CLASS): Set to 0 so that SMALL_REGISTER_CLASSES
	is no longer enabled if PARALLEL_MPY_FLAG set.
	(HARD_REGNO_CALL_CLOBBERED): Add parentheses to remove ambiguity.
	(REG_CLASS_CONTENTS): Add braces around initializers.
	(HAVE_MULTIPLE_PACK): Define.
	(ASM_OUTPUT_BYTE_FLOAT): Use %lf format specifier with 
	REAL_VALUE_TO_DECIMAL.
	(ASM_OUTPUT_SHORT_FLOAT): Use %lf format specifier with 
	REAL_VALUE_TO_DECIMAL.
	(ar0_reg_operand): Add prototype.
	(ar0_mem_operand): Likewise.
	(ar1_reg_operand): Likewise.
	(ar1_mem_operand): Likewise.
	(ar2_reg_operand): Likewise.
	(ar2_mem_operand): Likewise.
	(ar3_reg_operand): Likewise.
	(ar3_mem_operand): Likewise.
	(ar4_reg_operand): Likewise.
	(ar4_mem_operand): Likewise.
	(ar5_reg_operand): Likewise.
	(ar5_mem_operand): Likewise.
	(ar6_reg_operand): Likewise.
	(ar6_mem_operand): Likewise.
	(ar7_reg_operand): Likewise.
	(ar7_mem_operand): Likewise.
	(ir0_reg_operand): Likewise.
	(ir0_mem_operand): Likewise.
	(ir1_reg_operand): Likewise.
	(ir1_mem_operand): Likewise.
	(group1_reg_operand): Likewise.
	(group1_mem_operand): Likewise.
	(ir1_reg_operand): Likewise.
	(arx_reg_operand): Likewise.
	(not_rc_reg): Likewise.
	(not_modify_reg): Likewise.
	(c4x_group1_reg_operand): Remove prototype.
	(c4x_group1_mem_operand): Likewise.
	(c4x_arx_reg_operand): Likewise.

Wed Nov 25 19:02:55 1998  (Stephen L Moshier) <moshier@world.std.com>

	* emit-rtl.c (gen_lowpart_common): Remove earlier change.
	* real.c (make_nan): Make SIGN arg actually specify the sign bit.

Thu Nov 26 14:12:05 1998  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (addqi3): Emit addqi3_noclobber pattern
	during reload.

Wed Nov 25 22:05:28 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* config/sh/lib1funcs.asm (___udivsi3_i4): Don't switch to sz == 1
	unless FMOVD_WORKS is defined.

Wed Nov 25 20:11:04 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* regclass.c (init_reg_sets): Move code that calculates tables
	dependent on reg_class_contents from here...
	(init_reg_sets_1): To here.

Wed Nov 25 14:54:46 1998  Zack Weinberg  <zack@rabi.phys.columbia.edu>

        * cpplib.h: Delete struct import_file.  Add ihash element to
        struct cpp_buffer.  Delete dont_repeat_files and
        import_hash_table elements from cpp_reader; change
        all_include_files to a hash table.  Delete all foobar_include
        / last_foobar_include elements from struct cpp_options; put
        back four such: quote_include, bracket_include,
        system_include, after_include.  Redo struct file_name_list
        completely.  Add new structure type include_hash.  Add
        prototypes for merge_include_chains and include_hash.  Change
        prototypes for finclude, find_include_file, and
        append_include_chain to match changes below.

        * cppfiles.c (simplify_pathname, include_hash,
        remap_filename, merge_include_chains): New functions.
        (add_import, lookup_import, open_include_file): Removed.
        (INO_T_EQ): Define this (copied from cccp.c).
        (hack_vms_include_specification): Remove all calls and #if 0
        out the definition.  It was being called incorrectly and at
        the wrong times.  Until a VMSie can look at this, it's better
        to not pretend to support it.
        (append_include_chain): Change calling convention; now takes
        only one directory at a time, and sets up the data structure
        itself.
        (redundant_include_p): Rewritten - this is now used for all
        include redundancy, whether by #ifndef, #import, or #pragma
        once.  Looks up things in the include hash table.
        (file_cleanup): Decrement pfile->system_include_depth here if
        it's >0.
        (find_include_file): Calling convention changed; now passes
        around a struct include_hash instead of 3 separate parameters.
        Guts ripped out and replaced with new include_hash mechanism.
        (finclude): Calling convention changed as for
        find_include_file.  Error exits pulled out-of-line.  Reformat.
        (safe_read): Return a long, not an int.
        (deps_output): Don't recurse.

        * cpplib.c (is_system_include): Deleted.
        (path_include): Fix up call to append_include_chain.
        (do_include): Fix up calls to find_include_file and finclude.
        Clean up dependency output a bit.  Shorten obnoxiously lengthy
        #import warning message.  Don't decrement
        pfile->system_include_depth here.
        (do_pragma): Understand the include_hash structure.  Reformat.
        (do_endif): Correct handling of control macros.  Understand
        the include_hash.
        (cpp_start_read): Fix up calls to finclude.  Call
        merge_include_chains.
        (cpp_handle_option): Fix up calls to append_include_chain.
        Understand the four partial include chains.
        (cpp_finish): Add debugging code (#if 0-ed out) for the
        include_hash.
        (cpp_cleanup): Free the include_hash, not the import hash and
        the all_include and dont_repeat lists which no longer exist.

Wed Nov 25 11:26:19 1998  Jeffrey A Law  (law@cygnus.com)

	* toplev.c (no_new_pseudos): Define.
	(rest_of_compilation):  Set no_new_pseudos as needed.
	* emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
	if no_new_pseudos is set.
	* rtl.h (no_new_pseudos): Declare it.
	* reload1.c (reload): Update comments.
	* md.texi: Corresponding changes.

Wed Nov 25 11:26:17 1998  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>

	* reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
	(choose_reload_regs): Rename it here as well.  When computing it,
	also merge in used hardregs.

1998-11-25 07:51 -0500  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* gcc.c: Split out Objective-C specs to...
	* objc/lang-specs.h: here. (New file.) Make the specs cpplib
	aware.

	* c-lex.c (init_parse): Always initialize the filename global.
	* objc/objc-act.c (lang_init): Always call check_newline at
	beginning of file.

Wed Nov 25 00:48:29 1998  Graham  <grahams@rcp.co.uk>

	* reload1.c (reload): Remove unused variable.
	(reload_reg_free_for_value_p): Add missing parameter definition.

	* jump.c (jump_optimize): Remove unused variable.

Wed Nov 25 00:07:11 1998  Jeffrey A Law  (law@cygnus.com)

	* Makefile.in (graph.o): Depend on $(RTL_H), not rtl.h.

	* 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.
	* Corresponding changes to all target header files.
	* tm.texi: Update docs for autoinc addressing modes.

Tue Nov 24 20:24:59 1998  Jim Wilson  <wilson@cygnus.com>

	* configure.in (m68020-*-elf*, m68k-*-elf*): New targets.
	* configure: Rebuild.
	* config/elfos.h: New file.
	* config/m68k/m68020-elf.h, config/m68k/m68kelf.h,
	config/m68k/t-m68kelf: New file.
	
Tue Nov 24 13:40:06 1998  Jeffrey A Law  (law@cygnus.com)

	* Makefile.in (HOST_AR): Define.
	(HOST_AR_FLAGS, HOST_RANLIB, HOST_RANLIB_TEST): Similarly.
	(libcpp.a): Use the host tools explicitly.
	(STAGESTUFF): Add libcpp.a.

Tue Nov 24 09:33:49 1998  Nick Clifton  <nickc@cygnus.com>

	* config/m32r/m32r.md (movstrsi_internal): Describe changes made
	to source and destination registers.

Mon Nov 23 20:28:02 1998  Mike Stump  <mrs@wrs.com>

	* libgcc2.c (top_elt): Remove top_elt, it isn't thread safe.
	The strategy we now use is to pre allocate the top_elt along
	with the EH context so that each thread has its own top_elt.
	This is necessary as the dynmanic cleanup chain is used on the
	top element of the stack and each thread MUST have its own.
	(eh_context_static): Likewise.
	(new_eh_context): Likewise.
	(__sjthrow): Likewise.

Mon Nov 23 20:25:03 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* i386/linux.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Wrap in do...while.
	* i386.md (prologue_get_pc): Remove unused variable.

Mon Nov 23 17:05:40 1998  Geoffrey Noer  <noer@cygnus.com>

	* i386/xm-cygwin.h: Rename cygwin_ path funcs back to cygwin32_.

Mon Nov 23 16:40:00 1998  Ulrich Drepper  <drepper@cygnus.com>

        * Makefile.in (OBJS): Add graph.o
        (graph.o): New dependency list.
        * flags.h: Declare dump_for_graph and define graph_dump_types type.
        * print-rtl.c (dump_for_graph): Define new variable.
        (print_rtx): Rewrite to allow use in graph dumping functions.
        * toplev.c: Declare print_rtl_graph_with_bb, clean_graph_dump_file,
        finish_graph_dump_file.
        Define graph_dump_format.
        (compile_file): If graph dumping is enabled also clear these files.
        Finish graph dump files.
        (rest_of_compilation): Also dump graph information if enabled.
        (main): Recognize -dv to enabled VCG based graph dumping.
        * graph.c: New file.  Graph dumping functions.

Mon Nov 23 16:39:04 1998  Richard Henderson  <rth@cygnus.com>

        * configure.in: Look for <sys/stat.h>.
        * system.h: Include it before substitute S_ISREG definitions.

Mon Nov 23 17:40:37 1998  Gavin Romig-Koch  <gavin@cygnus.com>

	* config/mips/abi.h: Use ABI_O64, duplicating ABI_32 usage.
	* config/mips/iris6.h: Same.
	* config/mips/mips.md: Same.
	* config/mips/mips.c: Same; also add "-mabi=o64" option.
	* config/mips/mips.h: Same; also define ABI_O64.

Mon Nov 23 17:02:27 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	*  configure.in: Use AC_PREREQ(2.12.1).

Mon Nov 23 10:16:38 1998  "Melissa O'Neill" <oneill@cs.sfu.ca>

	* cccp.c (S_ISREG, S_ISDIR): Delete defines.
	* cpplib.c, gcc.c: Likewise.
	* system.h (S_ISREG, S_ISDIR): Define if not already defined.

Mon Nov 23 09:53:44 1998  Richard Henderson  <rth@cygnus.com>

	* local-alloc.c (local_alloc): Use malloc not alloca for
	reg_qty, reg_offset, ref_next_in_qty.

Mon Nov 23 16:46:46 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* caller-save.c (insert_one_insn): Initialize the live_before and
	live_after register sets.

	Add SH4 support:

	* config/sh/lib1funcs.asm (___movstr_i4_even, ___movstr_i4_odd): Define.
	(___movstrSI12_i4, ___sdivsi3_i4, ___udivsi3_i4): Define.
	* sh.c (reg_class_from_letter, regno_reg_class): Add DF_REGS.
	(fp_reg_names, assembler_dialect): New variables.
	(print_operand_address): Handle SUBREGs.
	(print_operand): Added 'o' case.
	Don't use adj_offsettable_operand on PRE_DEC / POST_INC.
	Name of FP registers depends on mode.
	(expand_block_move): Emit different code for SH4 hardware.
	(prepare_scc_operands): Use emit_sf_insn / emit_df_insn as appropriate.
	(from_compare): Likewise.
	(add_constant): New argument last_value.  Changed all callers.
	(find_barrier): Don't try HImode load for FPUL_REG.
	(machine_dependent_reorg): Likewise.
	(sfunc_uses_reg): A CLOBBER cannot be the address register use.
	(gen_far_branch): Emit a barrier after the new jump.
	(barrier_align): Don't trust instruction lengths before
	fixing up pcloads.
	(machine_dependent_reorg): Add support for FIRST_XD_REG .. LAST_XD_REG.
	Use auto-inc addressing for fp registers if doubles need to
	be loaded in two steps.
	Set sh_flag_remove_dead_before_cse.
	(push): Support for TARGET_FMOVD.  Use gen_push_fpul for fpul.
	(pop): Support for TARGET_FMOVD.  Use gen_pop_fpul for fpul.
	(calc_live_regs): Support for TARGET_FMOVD.  Don't save FPSCR.
	Support for FIRST_XD_REG .. LAST_XD_REG.
	(sh_expand_prologue): Support for FIRST_XD_REG .. LAST_XD_REG.
	(sh_expand_epilogue): Likewise.
	(sh_builtin_saveregs): Use DFmode moves for fp regs on SH4.
	(initial_elimination_offset): Take TARGET_ALIGN_DOUBLE into account.
	(arith_reg_operand): FPUL_REG is OK for SH4.
	(fp_arith_reg_operand, fp_extended_operand) New functions.
	(tertiary_reload_operand, fpscr_operand): Likewise.
	(commutative_float_operator, noncommutative_float_operator): Likewise.
	(binary_float_operator, get_fpscr_rtx, emit_sf_insn): Likewise.
	(emit_df_insn, expand_sf_unop, expand_sf_binop): Likewise.
	(expand_df_unop, expand_df_binop, expand_fp_branch): Likewise.
	(emit_fpscr_use, mark_use, remove_dead_before_cse): Likewise.
	* sh.h (CPP_SPEC): Add support for -m4, m4-single, m4-single-only.
	(CONDITIONAL_REGISTER_USAGE): Likewise.
	(HARD_SH4_BIT, FPU_SINGLE_BIT, SH4_BIT, FMOVD_BIT): Define.
	(TARGET_CACHE32, TARGET_SUPERSCALAR, TARGET_HARWARD): Define.
	(TARGET_HARD_SH4, TARGET_FPU_SINGLE, TARGET_SH4, TARGET_FMOVD): Define.
	(target_flag): Add -m4, m4-single, m4-single-only, -mfmovd.
	(OPTIMIZATION_OPTIONS): If optimizing, set flag_omit_frame_pointer
	to -1 and sh_flag_remove_dead_before_cse to 1.
	(ASSEMBLER_DIALECT): Define to assembler_dialect.
	(assembler_dialect, fp_reg_names): Declare.
	(OVERRIDE_OPTIONS): Add code for TARGET_SH4.
	Hide names of registers that are not accessible.
	(CACHE_LOG): Take TARGET_CACHE32 into account.
	(LOOP_ALIGN): Take TARGET_HARWARD into account.
	(FIRST_XD_REG, LAST_XD_REG, FPSCR_REG): Define.
	(FIRST_PSEUDO_REGISTER: Now 49.
	(FIXED_REGISTERS, CALL_USED_REGISTERS): Include values for registers.
	(HARD_REGNO_NREGS): Special treatment of FIRST_XD_REG .. LAST_XD_REG.
	(HARD_REGNO_MODE_OK): Update.
	(enum reg_class): Add DF_REGS and FPSCR_REGS.
	(REG_CLASS_NAMES, REG_CLASS_CONTENTS, REG_ALLOC_ORDER): Likewise.
	(SECONDARY_OUTPUT_RELOAD_CLASS, SECONDARY_INPUT_RELOAD_CLASS): Update.
	(CLASS_CANNOT_CHANGE_SIZE, DEBUG_REGISTER_NAMES): Define.
	(NPARM_REGS): Eight floating point parameter registers on SH4.
	(BASE_RETURN_VALUE_REG): SH4 also passes double values
	in floating point registers.
	(GET_SH_ARG_CLASS) Likewise.
	Complex float types are also returned in float registers.
	(BASE_ARG_REG): Complex float types are also passes in float registers.
	(FUNCTION_VALUE): Change mode like PROMOTE_MODE does.
	(LIBCALL_VALUE): Remove trailing semicolon.
	(ROUND_REG): Round when double precision value is passed in floating
	point register(s).
	(FUNCTION_ARG_ADVANCE): No change wanted for SH4 when things are
	passed on the stack.
	(FUNCTION_ARG): Little endian adjustment for SH4 SFmode.
	(FUNCTION_ARG_PARTIAL_NREGS): Zero for SH4.
	(TRAMPOLINE_ALIGNMENT): Take TARGET_HARWARD into account.
	(INITIALIZE_TRAMPOLINE): Emit ic_invalidate_line for TARGET_HARWARD.
	(MODE_DISP_OK_8): Not for SH4 DFmode.
	(GO_IF_LEGITIMATE_ADDRESS): No base reg + index reg for SH4 DFmode.
	Allow indexed addressing for PSImode after reload.
	(LEGITIMIZE_ADDRESS): Not for SH4 DFmode.
	(LEGITIMIZE_RELOAD_ADDRESS): Handle SH3E SFmode.
	Don't change SH4 DFmode nor PSImode RELOAD_FOR_INPUT_ADDRESS.
	(DOUBLE_TYPE_SIZE): 64 for SH4.
	(RTX_COSTS): Add PLUS case.
	Increae cost of ASHIFT, ASHIFTRT, LSHIFTRT case.
	(REGISTER_MOVE_COST): Add handling of R0_REGS, FPUL_REGS, T_REGS,
	MAC_REGS, PR_REGS, DF_REGS.
	(REGISTER_NAMES): Use fp_reg_names.
	(enum processor_type): Add PROCESSOR_SH4.
	(sh_flag_remove_dead_before_cse): Declare.
	(rtx_equal_function_value_matters, fpscr_rtx, get_fpscr_rtx): Declare.
	(PREDICATE_CODES): Add binary_float_operator,
	commutative_float_operator, fp_arith_reg_operand, fp_extended_operand,
	fpscr_operand, noncommutative_float_operator.
	(ADJUST_COST): Use different scale for TARGET_SUPERSCALAR.
	(SH_DYNAMIC_SHIFT_COST): Cheaper for SH4.
	* sh.md (attribute cpu): Add value sh4.
	(attrbutes fmovd, issues): Define.
	(attribute type): Add values dfp_arith, dfp_cmp, dfp_conv, dfdiv.
	(function units memory, int, mpy, fp): Make dependent on issue rate.
	(function units issue, single_issue, load_si, load): Define.
	(function units load_store, fdiv, gp_fpul): Define.
	(attribute hit_stack): Provide proper default.
	(use_sfunc_addr+1, udivsi3): Predicated on ! TARGET_SH4.
	(udivsi3_i4, udivsi3_i4_single, divsi3_i4, divsi3_i4_single): New insns.
	(udivsi3, divsi3): Emit special patterns for SH4 hardware,
	(mulsi3_call): Now uses match_operand for function address.
	(mulsi3): Also emit code for SH1 case.  Wrap result in REG_LIBCALL /
	REG_RETVAL notes.
	(push, pop, push_e, pop_e): Now define_expands.
	(push_fpul, push_4, pop_fpul, pop_4, ic_invalidate_line): New expanders.
	(movsi_ie): Added y/i alternative.
	(ic_invalidate_line_i, movdf_i4): New insns.
	(movdf_i4+[123], reload_outdf+[12345], movsi_y+[12]): New splitters.
	(reload_indf, reload_outdf, reload_outsf, reload_insi): New expanders.
	(movdf): Add special code for SH4.
	(movsf_ie, movsf_ie+1, reload_insf, calli): Make use of fpscr visible.
	(call_valuei, calli, call_value): Likewise.
	(movsf): Emit no-op move.
	(mov_nop, movsi_y): New insns.
	(blt, sge): generalize to handle DFmode.
	(return predicate): Call emit_fpscr_use and remove_dead_before_cse.
	(block_move_real, block_lump_real): Predicate on ! TARGET_HARD_SH4.
	(block_move_real_i4, block_lump_real_i4, fpu_switch): New insns.
	(fpu_switch0, fpu_switch1, movpsi): New expanders.
	(fpu_switch+[12], fix_truncsfsi2_i4_2+1): New splitters.
	(toggle_sz): New insn.
	(addsf3, subsf3, mulsf3, divsf3): Now define_expands.
	(addsf3_i, subsf3_i, mulsf3_i4, mulsf3_ie, divsf3_i): New insns.
	(macsf3): Make use of fpscr visible.  Disable for SH4.
	(floatsisf2): Make use of fpscr visible.
	(floatsisf2_i4): New insn.
	(floatsisf2_ie, fixsfsi, cmpgtsf_t, cmpeqsf_t): Disable for SH4.
	(ieee_ccmpeqsf_t): Likewise.
	(fix_truncsfsi2): Emit different code for SH4.
	(fix_truncsfsi2_i4, fix_truncsfsi2_i4_2, cmpgtsf_t_i4): New insns.
	(cmpeqsf_t_i4, ieee_ccmpeqsf_t_4): New insns.
	(negsf2, sqrtsf2, abssf2): Now expanders.
	(adddf3, subdf3i, muldf2, divdf3, floatsidf2): New expanders.
	(negsf2_i, sqrtsf2_i, abssf2_i, adddf3_i, subdf3_i): New insns.
	(muldf3_i, divdf3_i, floatsidf2_i, fix_truncdfsi2_i): New insns.
	(fix_truncdfsi2, cmpdf, negdf2, sqrtdf2, absdf2): New expanders.
	(fix_truncdfsi2_i4, cmpgtdf_t, cmpeqdf_t, ieee_ccmpeqdf_t): New insns.
	(fix_truncdfsi2_i4_2+1): New splitters.
	(negdf2_i, sqrtdf2_i, absdf2_i, extendsfdf2_i4): New insns.
	(extendsfdf2, truncdfsf2): New expanders.
	(truncdfsf2_i4): New insn.
	* t-sh (LIB1ASMFUNCS): Add _movstr_i4, _sdivsi3_i4, _udivsi3_i4.
	(MULTILIB_OPTIONS): Add m4-single-only/m4-single/m4.
	* float-sh.h: When testing for __SH3E__, also test for
	__SH4_SINGLE_ONLY__ .
	* va-sh.h (__va_freg): Define to float.
	(__va_greg, __fa_freg, __gnuc_va_list, va_start):
        Define for __SH4_SINGLE_ONLY__ like for __SH3E__ .
        (__PASS_AS_FLOAT, __TARGET_SH4_P): Likewise.
	(__PASS_AS_FLOAT): Use different definition for __SH4__ and
	 __SH4_SINGLE__.
	(TARGET_SH4_P): Define.
	(va_arg): Use it.

	* sh.md (movdf_k, movsf_i): Tweak the condition so that
	init_expr_once is satisfied about the existence of load / store insns.

	* sh.md (movsi_i, movsi_ie, movsi_i_lowpart, movsf_i, movsf_ie):
        change m constraint in source operand to mr / mf .

	* va-sh.h (__va_arg_sh1): Use __asm instead of asm.

	* (__VA_REEF): Define.
	(__va_arg_sh1): Use it.

	* va-sh.h (va_start, va_arg, va_copy): Add parenteses.

Sun Nov 22 21:34:02 1998  Jeffrey A Law  (law@cygnus.com)

	* i386/dgux.c (struct option): Add new "description field".
	* m88k/m88k.c (struct option): Likewise.

Sun Nov 22 16:07:57 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sun Nov 22 13:40:02 1998  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>

	* regmove.c (regmove_profitable_p): Use return value of find_matches
	properly.

Sun Nov 22 02:47:37 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sat Nov 21 22:12:09 1998  Jeffrey A Law  (law@cygnus.com)

	* reload1.c (eliminate_regs): Do not lose if eliminate_regs is called
	without reload having been called earlier.

	* v850.c (ep_memory_operand): Offsets < 0 are not valid for EP
	addressing modes.
	(v850_reorg): Similarly.

	* loop.c (check_dbra_loop): Avoid using gen_add2_insn.

Sat Nov 21 02:18:38 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* loop.c (move_movables): Start of libcall might be new loop start.

Fri Nov 20 12:14:16 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* hash.c (hash_table_init_n): Wrap prototype arguments in PARAMS().

Fri Nov 20 08:34:00 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* function.c (nonlocal_goto_handler_slots): Renamed from
	nonlocal_goto_handler_slot; now an EXPR_LIST chain.
	(push_function_context_to): Adjust for this change.
	(pop_function_context_from): Likewise.
	(init_function_start): Likewise.
	(expand_function_end): Likewise.
	* function.h (struct function): Likewise.
	* calls.c (expand_call): Likewise.
	* explow.c (allocate_dynamic_stack_space): Likewise.
	* expr.h (nonlocal_goto_handler_slots): Rename its declaration.
	* stmt.c (declare_nonlocal_label): Make a new handler slot for each
	label.
	(expand_goto): When doing a nonlocal goto, find corresponding handler
	slot for it.  Don't put the label address in the static chain register.
	(expand_end_bindings): Break out nonlocal goto handling code into
	three new functions.
	(expand_nl_handler_label, expand_nl_goto_receiver,
	expand_nl_goto_receivers): New static functions, broken out of
	expand_end_bindings and adapted to create one handler per nonlocal
	label.
	* function.c (delete_handlers): Delete insn if it references any of
	the nonlocal goto handler slots.
	* i960.md (nonlocal_goto): Comment out code that modifies
	static_chain_rtx.
	* sparc.md (nonlocal_goto): Likewise.
	(goto_handler_and_restore_v9): Comment out.
	(goto_handler_and_restore_v9_sp64): Comment out.

Thu Nov 19 23:44:38 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* expr.c (STACK_BYTES): Delete unused macro.
	* calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
	(STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
	(expand_call): Likewise.
	(emit_library_call): Likewise.
	(emit_library_call_value): Likewise.
	* function.c: Provide default for PREFERRED_STACK_BOUNDARY.
	(STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
	* explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
	(round_push): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
	(allocate_dynamic_stack_space): Likewise.
	* tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
	(STACK_BOUNDARY): Update description to reflect the new situation.

Thu Nov 19 22:20:51 1998  Jeffrey A Law  (law@cygnus.com)

	* reorg.c (relax_delay_slots): When optimizing for code size, if a
	return with a filled delay slot is followed by a return with an
	unfilled delay slot, delete the first return and reemit the insn
	that was previously in its delay slot.

	* i860.c (single_insn_src_p): Add missing parens.
	* ginclude/math-3300.h: Likewise.

Thu Nov 19 20:55:59 1998  H.J. Lu  (hjl@gnu.org)

	* regclass.c (init_reg_sets_1): Add prototype.
	(init_reg_modes): Likewise.

1998-11-19 Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* c-common.c: Change warning messages to say `comparison is
	always true' or `comparison is always false' instead of the
	confusing `is always 0', `is always 1'.

Thu Nov 19 19:05:49 1998  Per Bothner  <bothner@cygnus.com>

	* print-tree.c (print_node):  After printing BLOCK or BIND_EXPR,
	break instead of return (which loses closing '>').

Thu Nov 19 19:34:13 1998  Jeffrey A Law  (law@cygnus.com)

	* i386.h (LEGITIMATE_CONSTANT_P): Reject CONST_DOUBLEs that are not
	standard 387 constants.

	* i386.md (jump): Explicitly set "memory" attribute.
	(indirect_jump, prologue_set_stack_ptr): Likewise.
	(prologue_get_pc_and_set_got, pop): Likewise.
	(allocate_stack_worder, blockage, return_internal): Likewise.
	(return_pop_internal, nop): Likewise.
	(epilogue_set_stack_ptr, leave): Likewise.

Thu Nov 19 15:42:54 1998  Nick Clifton  <nickc@cygnus.com>

	* config/arm/coff.h: Set USER_LABEL_PREFIX to "_".

Thu Nov 19 23:20:59 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* reload1.c (reload_reg_free_for_value_p):
	Early auto_inc reloads don't conflict with outputs.

Thu Nov 19 12:58:55 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* configure.in: Don't do AC_CHECK_HEADERS(wait.h sys/wait.h).
	Instead call AC_HEADER_SYS_WAIT.

	* collect2.c: Don't provide defaults for sys/wait.h macros.
	* gcc.c: Likewise.
	* protoize.c: Likewise.  Also, don't include sys/wait.h.

	* system.h: Include sys/wait.h and provide macro defaults.

1998-11-19  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* Makefile.in (mandir): Set to @mandir@.
	(man1dir): New variable to hold the former value of $(mandir).
	Replace all uses of $(mandir) by $(man1dir).

Wed Nov 18 16:31:28 1998  Jim Wilson  <wilson@cygnus.com>

	* reload.c (find_reloads_address_part): If have a CONST_INT, create
	a new one before passing it to force_const_mem.

	* reload.c (find_reloads_toplev): Pass &x instead of NULL_PTR in
	find_reloads_address call.

Wed Nov 18 22:13:00 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* expr.c (store_expr): Don't generate load-store pair
	if TEMP is identical (according to ==) with TARGET.

Tue Nov 17 22:25:16 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* reload1.c (reload_reg_free_for_value_p): When considered reload
	has an output, matching inputs are not sufficient to avoid conflict.

Tue Nov 17 11:51:16 1998  Mark Mitchell  <mark@markmitchell.com>

	* hash.h (hash_table_key): New type.
	(hash_entry): Change `string' field to generic `key'.
	(hash_table): Add `comp' and `hash' functions.
	(hash_table_init): Take them as input.
	(hash_table_init_n): Likewise.
	(hash_lookup): Modify for generic keys.
	(hash_newfunc): Likewise.
	(hash_traverse): Likewise.
	(string_hash): New function.
	(string_compare): Likewise.
	(string_copy): Likewise.
	* hash.c (hash_table_init_n): Modify for generic keys.
	(hash_table_init): Likewise.
	(hash_lookup): Likewise.
	(hash_newfunc): Likewise.
	(hash_traverse): Likewise.
	(string_hash): Split out from hash_lookup.
	(string_compare): New function.
	(string_copy): Split out from hash_lookup.
	* tlink.c (symbol_hash_newfunc): Modify for new interfaces to hash
	tables.
	(symbol_hash_lookup): Likewise.
	(file_hash_newfunc): Likewise.
	(file_hash_lookup): Likewise.
	(demangled_hash_newfunc): Likewise.
	(demangled_hash_lookup): Likewise.
	(tlink_int): Likewise.
	(read_repo_file): Likewise.
	(recompile_files): Likewise.
	(demangle_new_symbols): Likewise.
	(scan_linker_output): Likewise.
	
Tue Nov 17 17:13:53 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* flow.c (insn_dead_p): New argument NOTES.  Changed all callers.

Mon Nov 16 17:56:07 1998  David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.c (output_mi_thunk): Improve test for local branch.

Mon Nov 16 17:56:07 1998  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* rs6000.c (output_mi_thunk): Correct test for aggregate values.

Mon Nov 16 21:02:52 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* reload1.c (reload_reg_free_before_p): Delete.
	Changed all callers to use reload_reg_free_for_value_p instead.
	(reload_reg_free_for_value_p): Handle more reload types.
	A RELOAD_FOR_INPUT doesn't conflict with its
	RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS.
	Add special case for OUT == const0_rtx.
	Added ignore_address_reloads argument.  Changed all callers.

Mon Nov 16 02:22:29 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* toplev.c (compile_file): Don't pedwarn about undefined static
	functions just because we passed -Wunused.

Mon Nov 16 04:41:41 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* function.c (purge_addressof_1): Unshare rtl created by
	store_bit_field.

Mon Nov 16 04:23:06 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* regmove.c (regmove_optimize): Don't do anything but
	optimize_reg_copy[123] when flag_regmove is not set.

Sat Nov 14 15:05:07 1998  Richard Henderson  <rth@cygnus.com>

	* alpha.md (addsi3, subsi3): Revise 5 Nov change to store DImode
	value in paradoxical SImode result, rather than truncating midpoint.

Fri Nov 13 22:19:23 1998  Richard Henderson  <rth@cygnus.com>

	* alpha.c (reg_not_elim_operand): New.
	* alpha.h (PREDICATE_CODES): Add it.
	* alpha.md (s48addq, s48subq patterns): Use it as the predicate
	for the multiplicand.

Fri Nov 13 22:50:37 1998  David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.md (movsf): Remove explicit secondary-reload-like
	functionality.  Only truncate SFmode store if in FPR.
	(movsf splitters): Combine const_double splitters.
	(movsf_hardfloat): Add GPR support.

Fri Nov 13 11:02:11 1998  Stan Cox  <scox@cygnus.com>

	* splet.h (SUBTARGET_OVERRIDE_OPTIONS): New to
	deprecate -mlive-g0 and -mbroken-saverestore.
	* t-splet (MULTILIB_OPTIONS): Likewise.
	
	* sparc.c (sparc_flat_compute_frame_size): Correctly calc args_size
	in a leaf function.  Clarify total_size/extra_size relationship.

Thu Nov 12 19:20:57 1998  Geoffrey Noer  <noer@cygnus.com>

	* i386/cygwin32.asm: Delete.
	* i386/cygwin.asm: New file, renamed from cygwin32.asm.
	* i386/cygwin32.h: Delete.
	* i386/cygwin.h: New file, renamed from cygwin32.h.
	* i386/t-cygwin32: Delete.
	* i386/t-cygwin: New file, renamed from t-cygwin32.  Include
	cygwin.asm instead of cygwin32.asm.  Remove "32" from comment.
	* i386/x-cygwin32: Delete.
	* i386/x-cygwin: New file, renamed from x-cygwin32.
	* i386/xm-cygwin32: Delete.
	* i386/xm-cygwin: New file, renamed from xm-cygwin32.  Use newly
	renamed cygwin_ funcs for path translations.
	* i386/win32.h: Define __CYGWIN__ when -mcygwin given.
	* i386/winnt.c: Remove "32" from comment about cygwin.
	* i386/mingw32.h: Fix references to cygwin32.h in light of above.
	* rs6000/cygwin32.h: Delete.
	* rs6000/cygwin.h: New file, renamed from cygwin32.h.  Add
	-D__CYGWIN__ to CPP_PREDEFINES.
	* rs6000/x-cygwin32: Delete.
	* rs6000/x-cygwin: New file, renamed from x-cygwin32.
	* rs6000/xm-cygwin32: Delete.
	* rs6000/xm-cygwin: New file, renamed from xm-cygwin32.

	* configure.in: Check for cygwin* instead of cygwin32.  Account
	for the rename of cygwin-related config files to lose the "32"s.
	* configure: Regenerate.

	* cccp.c, collect2.c, gcc.c, getpwd.c, libgcc2.c, protoize.c,
	toplev.c: Change all refs to __CYGWIN32__ to __CYGWIN__.

Wed Nov 11 12:25:19 1998  Tom Tromey  <tromey@cygnus.com>

	* Makefile.in (JAVAGC): New macro.
	* configure: Rebuilt.
	* configure.in: Recognize --enable-java-gc argument.  Subst
	`JAVAGC' variable.

Thu Nov 12 03:32:16 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	Handle equivalences that have been obscured by gcse:

	* reload1.c (reload): Handle equivalences set up in multiple places.
	* local-alloc.c (reg_equiv_init_insns): New variable.
	(no_equiv): New function.
	(update_equiv_regs): Handle equivalences set up in multiple places.
	Don't ignore an insn just because its destination is likely to be
	spilled.

Wed Nov 11 13:46:13 1998  Jim Wilson  <wilson@cygnus.com>

	* except.c (expand_eh_return): Readd force_operand call lost in
	Sept 15 change.

Tue Nov 10 17:04:11 1998  David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.h (LEGITIMIZE_ADDRESS): Add missing goto on last case.

1998-11-09  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* dbxout.c: Check HAVE_STAB_H instead of HAVE_STABS_H.

Mon Nov  9 20:15:19 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* regmove.c (regmove_optimize): Fix error in last change.

Mon Nov  9 16:37:52 1998  Andrew Cagney  <cagney@b1.cygnus.com>

	* mips.c (function_prologue): When TARGET_MIPS16, adjust the register
	offset in the .mask pseudo to compensate for frame pointer adjustments.
	(mips16_fp_args, build_mips16_call_stub): For little endian, do not
	word swap arguments moved to/from FP registers.
	* mips16.S (DFREVCMP): Reverse arguments to OPCODE.
	
Mon Nov 9 09:47:06 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Mon Nov 9 02:14:14 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Mon Nov  9 03:06:24 1998  Jeffrey A Law  (law@cygnus.com)

	* reload1.c (delete_output_reload_insn): If a pseudo is set multiple
	times, then it can not be completely replaced.

Mon Nov  9 00:39:02 1998  Richard Henderson  <rth@cygnus.com>

	* alpha.md (call, call_value) [OSF]: Correct alt 3 insn length.

Sun Nov  8 17:50:30 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* gansidecl.h: Prepend a "G" to the macro wrapping this file
	(to distinguish it from the macro wrapping ansidecl.h.)
	Include libiberty's ansidecl.h.  Remove all redundant definitions.
  	Define the PROTO() style macros in terms of the PARAMS() ones.

	
	* calls.c (emit_library_call): Switch on ANSI_PROTOTYPES, not
	__STDC__, when deciding whether to use ANSI variable args.
	(emit_library_call_value): Likewise.

	* cccp.c (error): Likewise.
	(warning): Likewise.
	(error_with_line): Likewise.
	(warning_with_line): Likewise.
	(pedwarn): Likewise.
	(pedwarn_with_line): Likewise.
	(pedwarn_with_file_and_line): Likewise.
	(fatal): Likewise.

	* cexp.y (error): Likewise.
	(pedwarn): Likewise.
	(warning): Likewise.

	* collect2.c (fatal_perror): Likewise.
	(fatal): Likewise.
	(error): Likewise.

	* combine.c (gen_rtx_combine): Likewise.

	* cpperror.c (cpp_message): Likewise.
	(cpp_fatal): Likewise.

	* cpplib.c (cpp_error): Likewise.
	(cpp_warning): Likewise.
	(cpp_pedwarn): Likewise.
	(cpp_error_with_line): Likewise.
	(cpp_warning_with_line): Likewise.
	(cpp_pedwarn_with_line): Likewise.
	(cpp_pedwarn_with_file_and_line): Likewise.

	* cpplib.h: Don't define PARAMS() macro.

	* demangle.h: Likewise.

	* doprint.c (checkit): Switch on ANSI_PROTOTYPES, not __STDC__,
 	when deciding whether to use ANSI variable args.

	* emit-rtl.c (gen_rtx): Likewise.
	(gen_rtvec): Likewise.

	* final.c (asm_fprintf): Likewise.

	* fix-header.c (cpp_message): Likewise.
	(fatal): Likewise.
	(cpp_fatal): Likewise.

	* gcc.c (concat): Likewise.
	(fatal): Likewise.
	(error): Likewise.

	* genattr.c (fatal): Likewise.

	* genattrtab.c (attr_rtx): Likewise.
	(attr_printf): Likewise.
	(fatal): Likewise.

	* gencodes.c (fatal): Likewise.

	* genconfig.c (fatal): Likewise.

	* genemit.c (fatal): Likewise.

	* genextract.c (fatal): Likewise.

	* genflags.c (fatal): Likewise.

	* genopinit.c (fatal): Likewise.

	* genoutput.c (fatal): Likewise.
	(error): Likewise.

	* genpeep.c (fatal): Likewise.

	* genrecog.c (fatal): Likewise.

	* halfpic.h: Switch on ANSI_PROTOTYPES, not __STDC__, when
	deciding whether to declare `tree_node' and `rtx_def'.

	* hash.h: Don't define stuff we get from gansidecl.h.

	* mips-tfile.c: Likewise.  Define __proto() in terms of PARAMS().
	(fatal): Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
	whether to use ANSI variable args.
	(error): Likewise.

	* prefix.c (concat): Likewise.

	* scan.h: Likewise.

	* system.h: Likewise.

	* toplev.c (error_with_file_and_line): Likewise.
	(error_with_decl): Likewise.
	(error_for_asm): Likewise.
	(error): Likewise.
	(fatal): Likewise.
	(warning_with_file_and_line): Likewise.
	(warning_with_decl): Likewise.
	(warning_for_asm): Likewise.
	(warning): Likewise.
	(pedwarn): Likewise.
	(pedwarn_with_decl): Likewise.
	(pedwarn_with_file_and_line): Likewise.
	(sorry): Likewise.
	(really_sorry): Likewise.

	* toplev.h: Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
	whether to declare `tree_node' and `rtx_def'.

	* tree.c (build): Switch on ANSI_PROTOTYPES, not __STDC__, when
	deciding whether to use ANSI variable args.
	(build_nt): Likewise.
	(build_parse_node): Likewise.

Sun Nov 8 13:10:55 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sat Nov  7 23:34:01 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* Makefile.in (libcpp.a): Check RANLIB_TEST before runing RANLIB.

Sat Nov  7 22:26:19 1998  David Edelsohn  <edelsohn@mhpcc.edu>

	* collect2.c (main, case 'b'): Use else if.

Sat Nov  7 15:35:25 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* configure.in (host_xm_file, build_xm_file, xm_file, tm_file):
	Arrange to include gansidecl.h in {ht}config.h & tm.h just
	before the config/ directory headers.
	(tm_file_list, host_xm_file_list, build_xm_file_list): Handle
        gansidecl.h in the list of dependencies.

	* Makefile.in (RTL_BASE_H): Don't depend on gansidecl.h.
	(TREE_H, DEMANGLE_H, RECOG_H, REGS_H, libgcc2.a, stmp-multilib,
 	mbchar.o, collect2.o, pexecute.o, vfprintf.o, splay-tree.o, gcc.o,
 	gencheck.o, choose-temp.o, mkstemp.o, mkstemp.o, prefix.o,
 	dyn-string.o, cexp.o, cccp.o, cppmain.o, cpplib.o, cpperror.o,
 	cppexp.o, cppfiles.o, cpphash.o, cppalloc.o, scan-decls.o):
 	Likewise.

	* cccp.c: Don't include gansidecl.h.
	* cexp.y: Likewise.
	* collect2.c: Likewise.
	* config/c4x/c4x.c: Likewise.
	* config/v850/v850.h: Likewise.
	* cppalloc.c: Likewise.
	* cpperror.c: Likewise.
	* cppexp.c: Likewise.
	* cppfiles.c: Likewise.
	* cpphash.c: Likewise.
	* cpplib.c: Likewise.
	* cppmain.c: Likewise.
	* cppulp.c: Likewise.
	* demangle.h: Likewise.
	* doprint.c: Likewise.
	* dyn-string.c: Likewise.
	* eh-common.h: Likewise.
	* fix-header.c: Likewise.
	* frame.c: Likewise.
	* gcc.c: Likewise.
	* gcov.c: Likewise.
	* gen-protos.c: Likewise.
	* gencheck.c: Likewise.
	* halfpic.h: Likewise.
	* hash.c: Likewise.
	* machmode.h: Likewise.
	* mbchar.c: Likewise.
	* prefix.c: Likewise.
	* protoize.c: Likewise.
	* recog.h: Likewise.
	* rtl.h: Likewise.
	* scan-decls.c: Likewise.
	* tree.h: Likewise.
	* varray.h: Likewise.
	
Sat Nov  7 11:37:53 1998  Richard Henderson  <rth@cygnus.com>

	* i386.md (call_value_pop): If we're not popping anything,
	defer to call_value.
	(call_pop): Likewise defer to call.

Sat Nov  7 02:49:56 1998  Richard Henderson  <rth@cygnus.com>

	* function.c (purge_addressof): Clear purge_addressof_replacements
	only after processing the whole function.

Sat Nov  7 00:54:55 1998  Jeffrey A Law  (law@cygnus.com)

	* reload1.c (reload): If we can not perform a particular elimination
	when we thought we could earlier, then we must always iterate through
	the loop at least one more time.

Fri Nov  6 19:37:33 1998  Richard Henderson  <rth@cygnus.com>

	* alpha.c (add_operand): Simplify the CONST_INT match.
	(sext_add_operand): Correct typo in comparison by using
	CONST_OK_FOR_LETTER_P.
	* alpha.md (s?addq): Use sext_add_operand to allow the negative
	constant alternatives to be generated.
	(mulsi3, muldi3, umuldi3_highpart): Loosen constraints to allow
	small constants, since the hw instructions do.

Fri Nov  6 20:15:19 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* reload1.c (emit_reload_insns):  When rewriting the SET_DEST of a
	previous insn to store directly into our reload register, make sure
	that if the source of the previous insn is a reload register, its
	spill_reg_store and spill_reg_stored_to values are cleared.

Fri Nov  6 16:35:10 1998  David Edelsohn  <edelsohn@mhpcc.edu>

	* rs6000.md (floatunssidf2_internal splitter): Use base register
	operand, not hard-coded SP.

Fri Nov  6 04:07:53 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

	* jump.c (calculate_can_reach_end): Fix thinko.

Fri Nov  6 00:16:04 1998  Jeffrey A Law  (law@cygnus.com)

	* reorg.c (fill_simple_delay_slots): Fix typo.

	* romp.h (LEGITIMIZE_ADDRESS): Fix typo.

Fri Nov  6 00:10:00 1998  Jan Hubicka (hubicka@freesoft.cz)

	* i386.md (extendsidi2): Use # in the output template.
	(extendsidi splitters): New splitters.

Thu Nov  5 11:13:27 1998  Nick Clifton  <nickc@cygnus.com>

	* configure.in: Use unknown-elf.h as tm_file for arm-elf
	configuarions.
	* configure: Regenerate.

Thu Nov  5 07:59:05 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

	* jump.c (init_label_info, delete_barrier_successors,
	mark_all_labels, delete_unreferenced_labels,
	delete_noop_moves, calculate_can_reach_end): New functions broken
	out of jump_optimize.
	(jump_optimize): Use them.

Thu Nov  5 07:57:45 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

	* except.c (expand_fixup_region_end): Make sure outer context labels
	are not issued in an inner context during cleanups.

Thu Nov  5 04:03:06 1998  Richard Henderson  <rth@cygnus.com>

	* alpha.md (addsi3, subsi3): No new temporaries once cse is
	no longer expected.

Thu Nov  5 03:29:19 1998  Richard Henderson  <rth@cygnus.com>

	* alpha.md (addsi3, subsi3): Expand to a DImode temporary so as
	to expose this midpoint to CSE.

Thu Nov  5 03:42:54 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

	* config/sparc/sparc.md (movdf_const_intreg_sp64): Enable again.

Thu Nov  5 10:53:01 1998  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* configure.in: Bring over gcc2 change of Nov 19 1997.

Wed Nov  4 23:43:08 1998  Graham  <grahams@rcp.co.uk>

        * toplev.c (output_lang_identify): Make definition dependent on
	ASM_IDENTIFY_LANGUAGE.

        * print-rtl.c (spaces): Make static.

Wed Nov  4 22:16:36 1998  Hans-Peter Nilsson  <hp@axis.se>

	* extend.texi: Clarify proper uses for register clobbers in asms.

Wed Nov  4 22:16:36 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* recog.h (enum op_type): Define.
	(constrain_operands): Adjust prototype.
	(recog_op_type): Declare new variable.
	* recog.c (recog_op_type): New variable.
	(insn_invalid_p): Allow modifying an asm statement after reload.
	(extract_insn): Set up recog_op_type.
	(constrain_operands): Lose INSN_CODE_NUM arg.  All callers changed.
	Don't compute operand types, use recog_op_type.
	Use the information computed by extract_insn instead of the previous
	method of finding it by insn code number.
	* caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
	* reorg.c (fill_slots_from_thread): Likewise.
	* reload1.c (reload_as_needed): Likewise.
	(gen_reload): Likewise.
	(inc_for_reload): Likewise.
	(reload_cse_simplify_operands): Likewise.
	Use the information computed by extract_insn instead of the previous
	method of finding it by insn code number.
	* genattrtab.c (write_attr_case): Generate call to extract_insn, not
	insn_extract.
	* final.c (final_scan_insn): Use extract_insn, not insn_extract.
	(cleanup_operand_subregs): Use extract_insn, not insn_extract.
	Use the information computed by extract_insn instead of the previous
	method of finding it by insn code number.
	* regmove.c (find_matches): Likewise.  Change meaning of the return
	value to be nonzero if the optimization can be performed, zero if
	not.  All callers changed.
	Shorten some variable names to fix formatting problems.
	(regmove_optimize): Shorten some variable names to fix formatting
	problems.
	Use the information computed by extract_insn instead of the previous
	method of finding it by insn code number.
	* regclass.c (scan_one_insn): Likewise.
	(record_reg_classes): Don't compute operand types, use recog_op_type.
	* reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
	recog_constraints instead.

Wed Nov  4 21:37:46 1998  Jeffrey A Law  (law@cygnus.com)

	* rtl.h (flow2_completed): Declare.
	* flow.c (flow2_completed): Definition.
	* toplev.c (rest_of_compilation): Set and clear flow2_completed
	as necessary.

Wed Nov  4 19:15:37 1998  "Melissa O'Neill" <oneill@cs.sfu.ca>

	* Makefile.in (libcpp.a): Ranlib libcpp.a

	* cppulp.c (user_label_prefix): Initialize.
	
Wed Nov  4 19:07:08 1998   John Wehle  (john@feith.com)

        * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
        at a RETURN if current_function_sp_is_unchanging is set.

Wed Nov  4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl> 

	* emit-rtl.c (try_split): Fixed error in Oct 10 patch.

Wed Nov  4 15:11:15 1998  Geoffrey Noer  <noer@cygnus.com>

	* i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
	TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
	(SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
	(CPP_PREDEFINES): Don't define __CYGWIN32__ here.
	(STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
	(CPP_SPEC): Handle -mno-cygwin option.  Define __CYWIN__ in addition
	to __CYGWIN32__.
	(LIB_SPEC): Handle -mno-cyginw option.
	(LINK_SPEC): Handle -mdll.

Wed Nov  4 22:56:14 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

	* reload.c (find_reloads): Fix test for usage by other reload
	to handle secondary reloads properly.

Wed Nov  4 17:25:10 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
 	intermediate structure which has exactly the members provided by
 	ELIMINABLE_REGS.  Define NUM_ELIMINABLE_REGS in terms of the
 	static intermediate structure.
	
	(init_elim_table): Xmalloc() `reg_eliminate', and initialize it
 	from the intermediate structure.  Do the same analogous fix in
 	the case where ELIMINABLE_REGS is not defined.

Tue Nov  3 20:50:03 1998  Jeffrey A Law  (law@cygnus.com)

	* pa.h (SELECT_SECTION): Fix thinko.

Tue Nov  3 17:51:36 1998  Jim Wilson  <wilson@cygnus.com>

	* dwarf2out.c (output_call_frame_info): Comments on last change.

Tue Nov  3 07:51:43 1998  Richard Earnshaw (rearnsha@arm.com)

	* arm.c (add_constant): When taking the address of an item in the
	pool, get the mode of the item addressed.

	* arm.c (final_prescan_insn case INSN): If an insn doesn't 
	contain a SET or a PARALLEL, don't consider it for conditional
	execution.

	Restore ABI compatibility for NetBSD.
	* arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
	arm.h
	(RETURN_IN_MEMORY): Likewise.

Mon Nov  2 11:46:17 1998  Doug Evans  <devans@canuck.cygnus.com>

	* m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
	(m32r_output_block_move): Rewrite bytes < 4 handling.

Mon Nov  2 10:10:35 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* configure.in: Call AC_FUNC_VFORK.

	* collect2.c: Define VFORK_STRING as a printable string for
 	error messages (either "vfork" or "fork".)  If HAVE_VFORK_H is
 	defined, include vfork.h.  If VMS is defined, define vfork()
	appropriately.  Remove vfork check on USG, we're using autoconf.
	(collect_execute): Pass VFORK_STRING to fatal_perror instead of
	checking locally what string to pass.
	(scan_prog_file): Likewise.
	(scan_libraries): Likewise.

	* gcc.c: Remove vfork check on USG, we're using autoconf.
	Besides, no calls to vfork/fork occur in this file.

	* protoize.c: Likewise.

Mon Nov  2 07:52:28 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

	* configure.in (DEFAULT_LINKER): renamed from LD
	(DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
	(gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
	* configure: rebuilt

Mon Nov  2 01:48:10 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

	* BUGS: fix the regexp for `more' to find the appropriate node.
	Reported by Joerg Pietschmann  <joerg_pietschmann@zkb.ch>

	* BUGS: added link to the WWW FAQ

Sun Nov 1 18:27:15 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sun Nov  1 11:04:32 1998  Jeffrey A Law  (law@cygnus.com)

        * From Christian Gafton:
        * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
        * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
        * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.

Sat Oct 31 21:42:39 1998  Mark Mitchell  <mark@markmitchell.com>

	* c-common.c (c_get_alias_set): Allow all type-punning through
	unions.  Don't get confused about the type of a bit-field, despite
	the antics of build_modify_expr.

Sat Oct 31 22:35:29 1998  Jean-Pierre Radley <jpr@jpr.com>

	* fixinc.sco: Paramaterize #include_next values.
	* fixinc/fixinc.sco: Likewise.

Sat Oct 31 20:39:35 1998  Jeffrey A Law  (law@cygnus.com)

	* toplev.c (rest_of_compilation): No longer set reload_completed.
	* reload1.c (reload): Set it here.  Perform instruction splitting
	after reload has completed if we will be running the scheduler
	again.

Sat Oct 31 12:30:02 1998  Jeffrey A Law  (law@cygnus.com)

	* jump.c (jump_optimize): Initialize mappings from INSN_UID to
	EH region if exceptions are enabled and we're performing cross
	jump optimizations.
	(find_cross_jump): Exit loop if the insns are in different EH regions.

Sat Oct 31 10:02:48 1998  Mark Mitchell  <mark@markmitchell.com>

	* dwarf2out.c (output_call_frame_info): Use
	ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.

Sat Oct 31 10:23:14 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
        * c-common.c (check_format_info): Don't check for the 'x'
	format character twice, instead check for 'x' and 'X'

Fri Oct 30 14:50:25 1998  Jeffrey A Law  (law@cygnus.com)

	* configure.in (assembler features): Also make gas is configured if
	we find it in the souce tree.

Fri Oct 30 13:23:20 1998  Richard Henderson  <rth@cygnus.com>

	* i386.c (i386_comp_type_attributes): Compare whether the 
	attributes are defined, not their tree nodes.

Fri Oct 30 11:39:47 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>

	* configure.in (gxx_include_dir): bitten by autoconf quoting
	characters :-(
	* configure: rebuilt

Fri Oct 30 10:43:29 1998  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* configure.in: Ignore non-absolute value in $AS.

Fri Oct 30 00:54:25 1998  Peter Jakubek <pjak@snafu.de>

	* m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.

Fri Oct 30 00:42:34 1998  Mark Elbrecht <snowball3@usa.net>

	* configure.in (msdosdjgpp): Set exeext and target_alias.

Thu Oct 29 23:55:43 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* flow.c (XNMALLOC): New macro.
	(flow_int_list_blocks, basic_block_succ, basic_block_pred): New
	static variables.
	(add_edge, add_edge_to_label): New static functions.
	(free_bb_memory): New function.
	(flow_delete_insn): Delete function.
	(basic_block_drops_in): Delete variable.
	(find_basic_blocks): Allocate and initialize basic_block_head,
	basic_block_succ.  Don't allocate basic_block_drops_in.
	Call free_bb_memory at the beginning.
	(find_basic_blocks_1): Don't do multiple passes.
	Delete code to compute basic_block_drops_in.
	After calling make_edges, mark blocks reached by current block live.
	Update test for unreachable live blocks.
	(mark_label_ref): Delete args X, CHECKDUP.  Add PRED arg.  All callers
	changed.
	Simplify to call add_edge_to_label when a LABEL_REF is found.
	(make_edges): Simplify to call add_edge_to_label instead of
	mark_label_ref most of the time.
	Compute here whether control drops into the next block.
	(delete_unreachable_blocks): Return void.  All callers changed.
	Delete unreachable blocks in reverse order.
	After deleting all unreachable blocks, renumber the remaining ones
	and update n_basic_blocks.
	(delete_block): Speed up deletion a bit.
	Don't set basic_block_drops_in for deleted blocks.
	(free_basic_block_vars): Don't free basic_block_drops_in.
	(life_analysis_1): Update to use new edge representation.
	(dump_flow_info): Delete code to print basic block info; call
	dump_bb_data instead.
	(compute_preds_succs): Delete code to recompute basic_block_drops_in
	and uid_block_number.
	Simply copy the previously computed cfg.
	(dump_bb_data): New arg LIVE_INFO.  All callers changed.
	Print register lifetime information if LIVE_INFO is nonzero.
	* basic-block.h (dump_bb_data): Adjust prototype.
	* gcse.c (gcse_main): Update call to dump_bb_data.
	* rtl.h (free_bb_memory): Declare.
	* toplev.c (rest_of_compilation): Call free_bb_memory.

	* reload1.c (struct elim_table): Delete MAX_OFFSET member.
	(update_eliminable_offsets): Don't compute it.
	(set_initial_elim_offsets): Don't initialize it.
	Break out some code into set_initial_label_offsets so the rest of
	this function can be called from reload_as_needed.
	Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
	ELIMINABLE_REGS isn't.
	(set_initial_label_offsets): New function, broken out of
	set_initial_elim_offsets.
	(set_offsets_for_label): New function, broken out of set_label_offsets
	and reload_as_needed.
	(reload): Call the two new functions.
	(reload_as_needed): Call set_initial_elim_offsets instead of
	duplicating the code.  Likewise for set_offsets_for_label.

	* reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
	(emit_reload_insns): Ensure that when we set reg_reloaded_valid for
	any hard reg, reg_reloaded_dead contains valid data.

Thu Oct 29 22:30:54 1998  Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>

	* i386.c (i386_comp_type_attributes): Return nonzero for mismatched
	"stdcall" and "cdecl" attributes.

Thu Oct 29 19:05:17 1998  Jim Wilson  <wilson@cygnus.com>

	* sched.c (update_flow_info): Add code to ! found_orig_dest case to
	handle deleted no-op moves of hard registers.
	* haifa-sched.c (update_flow_info): Likewise.

Thu Oct 29 18:07:47 1998  Jeffrey A Law  (law@cygnus.com)

	* mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
	of the sequences to reload the HILO register which do not actually
	reference HILO.

Thu Oct 29 12:39:35 1998  Jim Wilson  <wilson@cygnus.com>

	* c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.

Thu Oct 29 14:10:22 EST 1998  Andrew MacLeod  <amacleod@cygnus.com>

	* except.c (emit_eh_context): Make the EH context register stay alive
	at -O0 so stupid.c doesn't get confused.

1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* emit-rtl.c (try_split): Do not try to split a BARRIER.

Thu Oct 29 01:33:54 1998  Jan Hubicka <hubicka@freesoft.cz>
			  Jeffrey A Law  (law@cygnus.com)

	* i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
	(zero_extendsidi2): Use # in output template and handle completely by
	splits.
	(zero_extend splitters): New define_splits.
	(ashiftrt_32): New pattern.

Wed Oct 28 22:58:35 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* tree.c (append_random_chars): New fn.
	(get_file_function_name_long): Use it.

Wed Oct 28 22:27:05 1998  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
	(LIBCPP_OBJS): New.  Add cppulp.o.
	(cppmain, fix-header): Depend on and use libcpp.a.
	* configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
	of the individual object files.
	* objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
	last.

	* cccp.c (user_label_prefix): New.
	(main): Set it off -f*leading-underscore.
	(special_symbol): Use it.
	* cpplib.c (special_symbol): Likewise.
	(cpp_handle_option): Handle -f*leading-underscore.
	* cppulp.c: New file.

	* output.h (user_label_prefix): Declare it.
	* dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
	* toplev.c (f_options, main): Handle -f*leading-underscore.

	* defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
	referencing USER_LABEL_PREFIX directly.
	* config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
	* m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
	* final.c (asm_fprintf): Use user_label_prefix instead.
	* arm/thumb.c (thumb_print_operand): Likewise.

	* gcc.c (default_compilers): Pass -f*leading-underscore on to
	cpp wherever appropriate.

Wed Oct 28 23:09:25 1998  Robert Lipe  <robertl@dgii.com>

	* sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
	specific compiler switches.

Wed Oct 28 21:05:53 1998  Jeffrey A Law  (law@cygnus.com)

	* Makefile.in (c-common.o): Depend on c-pragma.h.  Use $(RTL_H) instead
	of rtl.h.

Wed Oct 28 20:52:47 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
 	structure which has exactly the members provided by EXTRA_SPECS.
  	Xmalloc() the real `extra_specs', and initialize it from this
	intermediate structure.

	* alpha.h (EXTRA_SPECS): Revert change for missing initializers.

	* mips.h  (EXTRA_SPECS): Likewise.

	* sparc.h (EXTRA_SPECS): Likewise.

Wed Oct 28 16:46:07 1998  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>
    
	* function.c (purge_addressof_1): Instead of aborting when a
	bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
	work just put the ADDRESSOF on stack.  Otherwise remember all such
	successfull replacements, so that exactly the same replacements
	can be made on the REG_NOTEs.  Remove the special case for CALL
	insns again.
	(purge_addressof_replacements): New variable.
	(purge_addressof): Clear it at end.

1998-10-28 16:10 -0500	Zack Weinberg  <zack@rabi.phys.columbia.edu>

	 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
	   (lang_init): Call check_newline always.
	 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
	   cpp_start_read, set yy_cur and yy_lim to read from
	   parse_in.token_buffer, so that we'll see the first #line
	   directive.
	 * cpplib.c (cpp_start_read): finclude the main input file
	   before processing -include/-imacros.	 Process -imacros and
	   -include separately, and handle -include by stacking a
	   buffer for the file in question as if it'd been #included.
	 * toplev.c (documented_lang_options) Recognize -H when
	   USE_CPPLIB is on.

1998-10-28 16:09 -0500	Zack Weinberg  <zack@rabi.phys.columbia.edu>

	 * cpplib.c: Merge do_once into do_pragma.  Break file handling
	   code out of do_include.
	   Move append_include_chain, deps_output,
	   file_cleanup, redundant_include_p, import_hash,
	   lookup_import, add_import, read_filename_string, read_name_map,
	   open_include_file, finclude, safe_read to cppfiles.c.
	   Move prototypes for deps_output, append_include_chain,
	   finclude to cpplib.h.  Move definition of struct
	   file_name_list there also.

	 * cppfiles.c: New file.  Contains all the above functions
	   broken out of cpplib.c; also hack_vms_include_specification
	   from cccp.c and find_include_file, a new function broken out of
	   do_include.

	 * Makefile.in (cppmain): Depend on cppfiles.o.
	   (fix-header): Likewise.
	   (cppfiles.o): New target.
	 * configure.in (--enable-c-cpplib): Add cppfiles.o to
	   extra_c_objs.  Add ../cppfiles.o to extra_cxx_objs.

Wed Oct 28 14:06:49 1998  Jim Wilson  <wilson@cygnus.com>

	* dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
	if pending_types is non-zero.
	(dwarfout_finish): Verify pending_types is zero before finishing.

Wed Oct 28 10:29:09 1998  Nick Clifton  <nickc@cygnus.com>

	* expr.c (convert_move): Use shifts to perform the move if a
	suitable extend pattern cannot be found.  Code written by
	Richard Henderson <rth@cygnus.com>.

Wed Oct 28 03:59:29 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* regclass.c (renumber, regno_allocated): New static variables, moved
	out of allocate_reg_info.
	(allocate_reg_info): Move these two variables outside the function.
	Move code to free memory into new function free_reg_info.
	(free_reg_info): New function, broken out of allocate_reg_info.
	* toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
	* rtl.h (allocate_reg_info): Don't declare.
	(free_reg_info): Declare.

	* final.c (cleanup_subreg_operands):  ASM_INPUTs need no treatment.

Wed Oct 28 02:38:12 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* toplev.c (compile_file): Temporarily revert last change.

Wed Oct 28 00:00:35 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* c-typeck.c (convert_for_assignment): Parenthesize.

1998-10-28  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* reload1.c (delete_output_reload): Avoid ambigous else.

Wed Oct 28 00:10:35 1998  Jeffrey A Law  (law@cygnus.com)

	* toplev.c (compile_file): Call allocate_reg_info to free register
	table memory.
	* rtl.h (allocate_reg_info): Declare.

	* PROJECTS: Remove entry for local spilling.

	* final.c (cleanup_subreg_operands): New function.
	(final_scan_insn): Use it.
	(alter_subreg): Clear the "used" field when we turn a SUBREG into
	a REG.
	* reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
	operands when reload has finished.
	* reload.h (cleanup_subreg_operands): Declare..
	* flow.c (life_analysis_1): No longer delete CLOBBER insns after
	reload.  Handled in reload itself.

Tue Oct 27 23:32:34 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* reload1.c (verify_initial_offsets): New function.
	(reload): Call it after reload_as_needed.  Also verify that the frame
	size stays constant during reload_as_needed.
	* i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.

	* reload.h (struct insn_chain): Add need_operand_change element.
	* reload1.c (new_insn_chain): Clear it.
	(calculate_needs_all_insns): Set it; don't overload need_reload.
	(reload_as_needed): Use it.

	* reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
	reload_address_base_reg_class throughout.  Similar for INDEX_REG_CLASS
	and reload_address_index_reg_class.
	(find_reloads_address_1): Likewise.
	* reload.h (reload_address_base_reg_class,
	reload_address_index_reg_class): Don't declare.
	* reload1.c (reg_old_renumber, pseudo_previous_regs,
	pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
	(used_spill_regs): Now static.
	(reload_address_base_reg_class, reload_address_index_reg_class,
	regs_explicitly_used, counted_for_groups, counted_for_nongroups,
	basic_block_needs, max_needs, group_size, group_mode, max_groups,
	max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
	forbidden_regs):
	Deleted variables.
	(init_reload): Delete code to compute base/index reg classes.
	(reload): Delete variable J.
	Delete code to manage basic_block_needs.
	Don't compute regs_explicitly_used.
	Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
	pseudo_previous_regs.
	Initialize bad_spill_regs_global.
	Don't call order_regs_for_reload here.
	Don't initialize spill_reg_order and n_spills.
	Don't forbid explicitly used regs to be used for spill regs.
	Change main loop to infinite loop, with explicit break statements.
	Make SOMETHING_CHANGED variable local to that loop.
	Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
	max_groups_insn, max_nongroups_insn, group_size, group_mode.
	Make sure spilled_speudos is cleared before calling spill_hard_reg or
	new_spill_reg.
	Don't call dump_needs.
	Delete code to reset potential_reload_regs.
	Delete code to terminate loop conditional on the global needs variables
	showing no further needs.
	(calculate_needs_all_insns): Return void.  All callers changed.
	Initialize somehing_needs_elimination here, not in reload.
	Delete avoid_return_reg kludge.
	(calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
	All callers changed.
	Initialize the group_mode and group_size elements of the arg CHAIN.
	Delete code to manage basic_block_needs.
	Operate on elements of CHAIN instead of global variables.
	Delete avoid_return_reg kludge.
	(find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
	All callers changed.
	Operate on elements of CHAIN instead of global variables.
	Delete special SMALL_REGISTER_CLASSES code.
	Delete spill_failure code; now in new_spill_reg.
	(find_group): Lose GLOBAL arg, take CHAIN arg, return void.
	All callers changed.
	Operate on elements of CHAIN instead of global variables.
	(maybe_mark_pseudo_spilled): New static function.
	(find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
	All callers changed.
	Operate on elements of CHAIN instead of global variables.
	Call order_regs_for_reload here, not in reload.
	Initialize spill_reg_order and n_spills.
	Simplify test whether an asm insn is involved.
	Delete spill_failure code; now in new_spill_reg.
	Call maybe_mark_pseudo_spilled for everything marked as live in
	CHAIN.  Merge CHAIN's used_spill_regs into the global variable
	used_spill_regs.
	(dump_needs): Take CHAIN arg.  No longer static, to prevent the
	compiler from optimizing this function (now unused) away.
	Operate on elements of CHAIN instead of global variables.
	(possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg.  All callers
	changed.
	Operate on elements of CHAIN instead of global variables.
	(count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
	take CHAIN arg.  All callers changed.
	Operate on elements of CHAIN instead of global variables.
	(new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
	CHAIN, NONGROUP args.  Return void.  All callers changed.
	Verify caller isn't trying to spill a pseudo.
	Simplify test for illegal reg, just use bad_spill_regs.
	Generate better error messages.
	Operate on elements of CHAIN instead of global variables.
	Mark spilled register in CHAIN's used_spill_regs element.
	Don't call spill_hard_reg.
	(spill_hard_reg): Lose GLOBAL arg, return void.  All callers changed.
	Mark spilled hard regs in bad_spill_regs_global.
	Mark affected pseudos in spilled_pseudos, but don't spill them.
	(ior_hard_reg_set): New static function.
	(finish_spills): Return int.  All callers changed.
	Compute spill_reg_order, n_spills and spill_regs here.  Also update
	regs_ever_live for regs used as spills.
	For every pseudo in spilled_pseudos, spill it and mark the previous
	hard reg it had in pseudo_previous_regs.  Compute which hard regs
	arseudo): New static function.
	(order_regs_for_reload): Take CHAIN arg.  All callers changed.
	Initialize bad_spill_regs from bad_spill_regs_global, then merge any
	hard registers explicitly used across the current insn into the set.
	Compute hard_reg_n_uses taking only pseudos live across this insn
	into account.
	Tweak sorting of potential_reload_regs.
	(compare_spill_regs): Delete function.
	(reload_as_needed): Don't sort the spill_regs array, it's computed
	in proper order in finish_spills.
	Delete avoid_return_reg kludge.
	Delete code to manage basic_block_needs.
	(allocate_reload_reg): Minor speed/readability tweaks.
	Operate on elements of CHAIN instead of global variables.
	(choose_reload_regs): Lose AVOID_RETURN_REG arg.  All callers changed.
	Delete avoid_return_reg kludge.
	Initialize reload_reg_used from CHAIN's used_spill_regs element.
	Delete unused label FAIL.
	(reload_combine): Replce reload_address_index_reg_class with
	INDEX_REGS.
	Don't use used_spill_regs to determine information about lifetime of
	hard regs.

Tue Oct 27 13:15:02 1998  Nick Clifton  <nickc@cygnus.com>
	
	* toplev.c (display_help): Ignore empty target specific
	options, and if -W is also specified on the command line then
	display undocumented options.

	* config/arm/arm.c: Updated with changes in devo sources.
	* config/arm/arm.h: Updated with changes in devo sources.
	* config/arm/lib1funcs.asm: Updated with changes in devo sources.
	* config/arm/lib1thumb.asm: Add ELF support.

Tue Oct 27 16:11:43 1998  David Edelsohn  <edelsohn@mhpcc.edu>

	* collect2.c (aix64_flag): New variable.
	(main, case 'b'): Parse it.
	(GCC_CHECK_HDR): object magic number must match mode.
	(scan_prog_file): Only check for shared object if valid header.
	Print debugging if header/mode mismatch.

Tue Oct 27 10:15:02 1998  Nick Clifton  <nickc@cygnus.com>

	Added support for arm-elf-linux configuration, submitted by Philip
	Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
	code developed by Catherine Moore <clm@cygnus.com>.  The following
	files are affected: 

	* configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
	targets. 

	* configure: Regenerated.
	
	* config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
	USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX.  Make other macro
	definitions conditional on their not having been already defined.

	* config/arm/lin1funcs.asm: Add ELF only macros to generate .size
	and .type directives, and add "(PLT)" qualification to function
	calls.

	* config/arm/linux.h: Deleted.  This file is now superceeded by
	either linux-elf.h or linux-aout.h.

	* config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
	(CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
	support).
	Move definitions from old linux.h file here.
	
	* config/arm/elf.h: New file.  Generic ARM/ELF support.
	
	* config/arm/linux-aout.h: New file.  Support for Linux with a.out.
	
	* config/arm/linux-elf.h: New file.  Support for Linux with ELF.
	
	* config/arm/linux-elf26.h: New file.  Support for Linux with ELF
	using the 26bit APCS.
	
	* config/arm/unknown-elf.h: New file.  Support for OS'es other
	than Linux with ELF.

	* config/arm/t-arm-elf: New file.  makefile fragment for arm-elf
	builds.
	
	* config/arm/coff.h: Include aout.h for basic assembler macros.
	Add support for -mstructure_size_boundary=<n> command line option.
	
	* config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
	command line option.  Make macro definitions conditional on their
	not having been already defined. 

	* config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
	command line option.

	
Tue Oct 27 08:56:46 1998  Andrew MacLeod  <amacleod@cygnus.com>

	* dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
	has been changed to not include a newline. Use this macro instead.
	(output_enumeral_list, const_value_attribute, name_attribute,
	comp_dir_attribute, prototyped_attribute, producer_attribute,
	inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
	dwarfout_file_scope_decl, generate_new_sfname_entry,
	generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
	ASM_OUTPUT_DWARF_STRING_NEWLINE macro.

Mon Oct 26 13:35:02 1998  Richard Henderson  <rth@cygnus.com>

	* combine.c (subst): Process the inputs to a parallel asm_operands
	only once.

Mon Oct 26 13:32:31 1998  Richard Henderson  <rth@cygnus.com>

	* stmt.c (expand_asm_operands): Accept `=' or `+' at any position.

Mon Oct 26 12:53:14 1998  Jeffrey A Law  (law@cygnus.com)

	* tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.

Mon Oct 26 00:36:58 PST 1998 Jeff Law  (law@cygnus.com)

	* version.c: Bump for snapshot.

Sun Oct 25 23:36:52 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* stmt.c (expand_fixup): Set fixup->before_jump to a
	NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.

Sun Oct 25 15:49:57 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* Makefile.in (recog.o): Depend on toplev.h.
	(insn-emit.o): Depend on recog.h.
	(insn-peep.o): Depend on recog.h and insn-config.h.

	* combine.c (simplify_set): Remove unused variable `scratches'.

	* final.c (final_scan_insn): Wrap declaration of variables `vlen'
 	and `idx' in macro conditional controlling their use.

	* genemit.c (main): Make the generated output file include
 	recog.h.  Don't have it declare `insn_operand_constraint', since
 	we get it from recog.h.

	* genpeep.c (main): Make the generated output file include
	insn-config.h and recog.h.

	* recog.c: Include toplev.h.
	(extract_insn): Remove unused variable `p'.

	* regclass.c (fix_register): Add missing braces around initializer
	for `what_option'.
	(allocate_reg_info): Move variable `i' into the scope where it is
	used.  Change its type to `size_t'.

Sun Oct 25 13:10:15 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>

	* reload.c (push_reload): When merging reloads, make sure
	that reload_in_reg and reload_in are from the same reload in
	all cases.

Sun Oct 25 12:07:00 1998  Mumit Khan  <khan@xraylith.wisc.edu>

	* i386/crtdll.h (CPP_PREDEFINES): Fix typo.
	* i386/mingw32.h (CPP_PREDEFINES): Likewise.

Fri Oct 23 23:42:03 1998  David Edelsohn  <edelsohn@mhpcc.edu>

	* loop.c (loop_has_tablejump): New variable.
	(prescan_loop): Scan for it.
	(insert_bct): Replace explicit scan with use of it.
	* regclass.c (regclass): Restore loop variable j.
	(record_reg_classes): Deterine op_types modifiers and initialize
	classes[i] before matching constraints.  Handle matching
	constraints 5-9.
	
Fri Oct 23 13:55:48 1998  Jim Wilson  <wilson@cygnus.com>

	* m32r/m32r.c (gen_split_move_double): Call alter_subreg.  Delete
	subreg support.

Fri Oct 23 16:19:24 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* mips.h (EXTRA_SPECS): Add missing initializers.

Fri Oct 23 16:08:39 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* sparc.h (EXTRA_SPECS): Add missing initializers.
	(sparc_defer_case_vector): Provide a prototype.

	* svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
 	comparing it to the result of a pointer subtraction.

Fri Oct 23 15:34:14 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* alpha.c (override_options): Use ISDIGIT(), not isdigit().  Cast
	the argument to (unsigned char).

	* alpha.h (EXTRA_SPECS): Add missing initializers.
	(ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
	format specifier.

Fri Oct 23 13:12:35 1998  Jeffrey A Law  (law@cygnus.com)

	* flow.c (life_analysis_1): Enable "rescan" code after reload.
	(propagate_block): Delete dead code after reload.

	* sched.c (update_flow_info): Revert Oct 19, 1998 change.  Brings
	back Oct 15, 1998 change.  
	* haifa-sched.c (update_flow_info): Likewise.
	* flow.c (life_analysis_1): Delete CLOBBER insns after reload.

	* mn10200.md (truncated shift): Accept constant inputs too.

Fri Oct 23 04:06:57 1998  Richard Earnshaw (rearnsha@arm.com)

	* machmode.h (mode_mask_array): No longer const.
	* rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.