path: root/gcc/ChangeLog

2001-02-12  Jakub Jelinek  <jakub@redhat.com>

	* c-common.c (constant_fits_type_p): New function.
	(convert_and_check): Use it.

2001-02-11  Mark Mitchell  <mark@codesourcery.com>

	* Makefile.in (GXX_ABI_FLAG): Don't define.
	* configure.in (--enable-new-gxx-abi): Remove option.
	* config.in: Regenerated.
	* configure: Likewise.

2001-02-12  Alexandre Oliva  <aoliva@redhat.com>

	* lcm.c (compute_earliest): Let EXIT_BLOCK be handled as a regular
	basic block.
	(optimize_mode_switching) [NORMAL_MODE]: Set up EXIT_BLOCK as a
	regular basic block, and arrange for all edges into it to switch
	to normal mode.

2001-02-11  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* Makefile.in (distclean): Do not remove .gdbinit.

2001-02-11  Mark Mitchell  <mark@codesourcery.com>

	* Makefile.in (gcc.o): Fix typos.
	(protize.o): Likewise.
	(unprotoize.o): Likewise.

2001-02-11  Richard Henderson  <rth@redhat.com>

	* tree.c (build1): Check for null operand in last change.

2001-02-11  Richard Henderson  <rth@redhat.com>

	* fold-const.c (split_tree): Don't assume a constant isn't splittable.
	(fold): Don't assume a constant isn't foldable.
	* tree.c (build): Set TREE_CONSTANT for an expression with no
	side-effects and constant operands.
	(build1): Likewise.

2001-02-10  Richard Henderson  <rth@redhat.com>

	* jump.c (squeeze_notes): Revert 2000-05-12 change.

2001-02-10  Anthony Green  <green@redhat.com>

	* cpp.texi (Standard Predefined): Add documentation for
	__OPTIMIZE_SIZE__.

	* c-common.c (combine_strings): Improve warning message.

2001-02-10  Geoffrey Keating  <geoffk@redhat.com>

	* config/rs6000/sysv4.h (LINK_TARGET_SPEC): Use two dashes for
	--oformat.
	* config/rs6000/sysv4le.h (LINK_TARGET_SPEC): Likewise.

Fri Feb  9 15:05:27 2001  Christopher Faylor <cgf@cygnus.com>

	* config/i386/t-cygwin (T_CPPFLAGS): Use correct location for
	CYGWIN_CROSS_DIR.

2001-02-09  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (sibcalli, sibcalli_pcrel, sibcalli): Set
	fp_mode attribute.

2001-02-09  Nick Clifton  <nickc@redhat.com>

	* config/arm/arm.md: Change output contraint on post inc
	load/store multiple patterns to be a read/write contraint.

2001-02-09  Neil Booth  <neil@daikokuya.demon.co.uk>

        * gcc.c (cpp_options): Delete .d files on error.  Don't delete
        .o files when using the -M options.

2001-02-08  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
	    David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (output_toc): Allow 32-bit targets to
	handle DImode constants.  Use one TOC entry for SImode and smaller
	constants, aligned properly.

2001-02-08  Jason Merrill  <jason@redhat.com>

	* config/arm/arm.c (arm_expand_prologue): Do tell the dwarf2 backend
	about the SP adjustment for saving the static chain pointer.
	* dwarf2out.c (dwarf2out_frame_debug_expr): Use the specified
	offset when setting a temporary CFA register.

2001-02-08  Chandrakala Chavva  <cchavva@redhat.com>

	* config.gcc : New targets, i386-*-chorusos*, sparc-*-chorusos*,
	powerpc-*-chorusos* .
	* config/rs6000/chorus.h : New file.
	* config/i386/chorus.h : New file.
	* config/sparc/chorus.h : New file.
	* config/sparc/t-chorus-elf : New file.

2001-02-08  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.h (ASM_OUTPUT_SYMBOL_REF): Move from here ...
	* config/rs6000/aix.h (ASM_OUTPUT_SYMBOL_REF): ... to here.
	* config/rs6000/aix51.h (CPLUSCPLUS_CPP_SPEC): Define it.
	(__WCHAR_TYPE__): Correct macro name.
	
2001-02-08  Richard Henderson  <rth@redhat.com>

	* config/i386/i386.c (ix86_frame_pointer_required): New.
	(ix86_setup_frame_addresses): New.
	(struct machine_funciton): Add accesses_prev_frame.
	* config/i386/i386.h (FRAME_POINTER_REQUIRED): Call
	ix86_frame_pointer_required.
	(SUBTARGET_FRAME_POINTER_REQUIRED): New.
	(SETUP_FRAME_ADDRESSES): New.
	* config/i386/i386-protos.h: Update.
	* config/i386/sco5.h (SUBTARGET_FRAME_POINTER_REQUIRED): Rename
	from FRAME_POINTER_REQUIRED.
	* config/i386/svr3gas.h: Likewise.
	* config/i386/sysv3.h: Likewise.
	* config/i386/v3gas.h: Likewise.

2001-02-08  Richard Henderson  <rth@redhat.com>

	* config/sparc/sparc.c (function_arg_record_value_3): Fix
	calculation of the number of integer registers required.
	(function_arg_record_value): Likewise.

2001-02-08  Jason Merrill  <jason@redhat.com>

	* diagnostic.c (internal_error): Say "confused" after 1 error, not
	two.  Print file and line with "confused" message.

	* dwarf2out.c (dwarf2out_line): Include filename in -dA output.

Thu Feb  8 11:21:28 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* rtlanal.c (remove_node_from_expr_list): Correctly update PREV.

2001-02-08  Bernd Schmidt  <bernds@redhat.com>

	* final.c (cleanup_subreg_operands): The address of a MEM can
	contain SUBREGs.

	* config/ia64/ia64.c (ia64_variable_issue): Call group_barrier_needed_p
	for asms, too.

2001-02-08  Joseph S. Myers  <jsm28@cam.ac.uk>

	* gcc.texi (Incompatibilities): Update documentation of
	preprocessing numbers.

2001-02-07  Jakub Jelinek  <jakub@redhat.com>

	* c-decl.c (finish_enum): Revert part of 2000-01-05 change.

2001-02-07  Mark Mitchell  <mark@codesourcery.com>

	* config/rs6000/aix43.h (CPLUSCPLUS_CPP_SPEC): Define it.

	* defaults.h (CPLUSPLUS_CPP_SPEC): New macro.
	* gcc.c (struct compiler): Add cpp_spec field.
	(input_file_compiler): New variable.
	(do_spec_1): Allow a particular compiler to handle `%C' 
	specially.
	(main): Store the current compiler in input_file_compiler.
	* tm.texi (CPLUSPLUS_CPP_SPEC): Document.
	
2001-02-07  Zack Weinberg  <zack@wolery.stanford.edu>

	* cpphash.h (struct spec_nodes): Add n_true and n_false.
	* cppinit.c (cpp_create_reader): Initialize them.
	(append_include_chain): cxx_aware arg might be unused.
	* cppexp.c (lex): In C++ mode, recognize 'true' and 'false'
	keywords and give them their phase 7 meaning.  Pedwarn about
	this unless '__bool_true_false_are_defined' is defined.

2001-02-07  Alexandre Oliva  <aoliva@redhat.com>

	* lcm.c (optimize_mode_switching): Emit mode_set before the
	JUMP_INSN of an abnormal edge.

2001-02-07  Bernd Schmidt  <bernds@redhat.com>

	* builtins.c (expand_builtin_setjmp_receiver): Emit an ASM_INPUT as
	a scheduling barrier at the end.

	* tm.texi (MD_INIT_BUILTINS, MD_EXPAND_BUILTIN): Document.

2001-02-07  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (reload_outsf): Removed.
	(movsf_ie): Introduce constraints for FPUL loads and stores.
	(reload_insf): Broaden the output constraint.

	* config/elfos.h (INT_ASM_OP): Don't define it if it's already
	defined.
	* config/sh/sh.h (INT_ASM_OP, ASM_OUTPUT_CONSTRUCTOR,
	ASM_OUTPUT_DESTRUCTOR): Copy definitions from config/elfos.h.

2001-02-06  Chandrakala Chavva  <cchavva@redhat.com>

	* final.c: Revert my previous changes.
	* output.h: Make profile_label_no extern.
	* config/rs6000/rs6000.c (output_profile_hook): Use standard functions
	for generating label.

2001-02-06  Laurynas Biveinis  <lauras@softhome.net>

	* config/i386/djgpp.h: Add comments about standard paths.
	(MD_EXEC_PREFIX): Undefine before defining.
	(MD_STARTFILE_PREFIX): New.

2001-01-30  Bruce Korb  <bkorb@gnu.org>

	fixinc/fixincl.c(process):  Emit error message only if appropriate :)
	(load_file): do not rely on load_file_data() to close file pointer
	fixinc/fixlib.c(load_file_data): do not close passed in file pointer
	fixinc/inclhack.def(irix_limits_const): add test_text

2001-02-06  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppexp.c (parse_defined): Improve diagnostics for invalid
	syntax.

2001-02-06  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppmacro.c (cpp_get_token): Avoid pasting after a builtin.

2001-02-06  Mark Mitchell  <mark@codesourcery.com>

	* config/rs6000/rs6000.h (ASM_OUTPUT_SYMBOL_REF): Define.
	* config/rs6000/rs6000-protos.h (rs6000_output_symbol_ref): Declare.
	* config/rs6000/rs6000.c (VTABLE_NAME_P): New macro.
	(rs6000_output_symbol_ref): New function.
	(output_toc): Use VTABLE_NAME_P.
	
Tue Feb  6 07:54:51 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* print-tree.c (print_node, case PARM_DECL):
	Print DECL_ARG_TYPE and DECL_ARG_TYPE_AS_WRITTEN.

	* stor-layout.c (reference_types_internal): New variable.
	(internal_reference_types): New function.
	(layout_type, case REFERENCE_TYPE): Make Pmode if internal.
	* tree.h (internal_reference_types): New declaration.

	* cse.c (find_best_addr): Fix typo in computing cost.

Mon Feb  5 21:56:16 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* combine.c (nonzero_bits, case PLUS): If pointers extend unsigned
	and this is the sum of a pointer and a constant, we know the result
	did not overflow.
	(num_sign_bit_copies, case PLUS): Likewise.
	* explow.c (convert_memory_address): Remove opposite SUBREG.
	* function.c (instantiate_new_reg): New function (from common code).
	(instantiate_virtual_regs_1): Call it.
	For PLUS, handle if (plus (subreg (virt-reg) (const_int))
	if pointers sign- or zero-extend.
	* simplify-rtx.c (simplify_unary_operation, case ZERO_EXTEND):
	If pointers extend unsigned, use inside of SUBREG.
	(simplify_unary_operation, case SIGN_EXTEND): Likewise, if sign extend.

2001-02-05  Benjamin Kosnik  <bkoz@redhat.com>

	* Makefile.in (-DGPLUSPLUS_TOOL_INCLUDE_DIR): Change to target
	subdir of gcc_gxx_include_dir.
	(gcc_gxx_target_include_dir): Remove.

2001-02-05  Jeffrey Oldham  <oldham@codesourcery.com>

	* dwarf2out.c: Revise DWARF2 Abbreviation Glossary comments.
	(dwarf2out_frame_debug_expr): Revise introductory comments to add
	a high-level description.

2001-02-05  Chandrakala Chavva  <cchavva@redhat.com>

	* final.c: Move the declaration of profile_label_no to ...
	* output.h: ... here.
	* function.c (expand_function_start): Call PROFILE_HOOK.
	* config/rs6000/aix.h: Define PROFILE_HOOK.
	* config/rs6000/rs6000-protos.h: output_profile_hook new.
	* config/rs6000/rs6000.c (output_profile_hook): Define.
	(output_prolog): Do nothing for ABI_AIX as it is taken care by
	output_profile_hook.
	tm.texi : Explain new macro PROFILE_HOOK.

2001-02-06  Hans-Peter Nilsson  <hp@axis.com>

	* extend.texi (Extended Asm): Do not say that semicolon is always
	a valid line-breaking character for GNU assemblers.  Use
	newline-tab as the most commonly supported syntax.  Use
	newline-tab rather than semicolon in multi-insn examples.

2001-02-05  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* Makefile.in (gcc_gxx_target_include_dir): Use $(target_alias).

2001-02-05  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
	    David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (rs6000_return_addr): Use PIC 
	code for AIX, even without flag_pic.

2001-02-05  Jakub Jelinek  <jakub@redhat.com>

	* c-typeck.c (common_type): push and pop binding level around
	calling common_type on function parameters.

Mon Feb  5 14:30:37 2001  Christopher Faylor <cgf@cygnus.com>

	* config/i386/cygwin.h (CPP_SPEC): Add missing space after -idirafter.

Mon Feb  5 11:23:16 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config/mips/mips.c (override_options): Fix typo in last change.
	(mips_make_temp_file): Call fatal_io_error, not pfatal_with_name.
	(mips_asm_file_end): Likewise; also pass more args to fatal_io_error.

2001-02-05  Nathan Sidwell  <nathan@codesourcery.com>

	* invoke.texi (-fdump-class-layout): Document.
	(-fdump-translation-unit): Use `=' as filename separator.

2001-02-05  Mark Mitchell  <mark@codesourcery.com>

	* Makefile.in (s-mlib): Don't build multilibs if
	--disable-multilib.
	(DRIVER_DEFINES): Adjust accordingly.
	(gcc.o): Likewise.
	(protoize.o): Likewise.
	(unprotoize.o): Likewise.
	* configure.in: Recognize --enable-multilib.
	
2001-02-04  Mark Mitchell  <mark@codesourcery.com>

	* Makefile.in (DRIVER_DEFINES): Fix quoting.

	* Makefile.in (site.exp): Always set HAVE_LIBSTDCXX_V3.
	* configure.in: Remove --enable-libstdcxx_v3 support.
	* configure: Regenerated.

Sun Feb  4 15:52:44 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config/avr/avr.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP):
	Call abort instead of fatal.
	(TRAMPOLINE_TEMPLATE): Call internal_error instead of fatal.
	* config/dsp16xx/dsp16xx.h (FUNCTION_PROFILER): Likewise.
	(FUNCTION_BLOCK_PROFILER, BLOCK_PROFILER): Likewise.
	(TRAMPOLINE_TEMPLATE, INITIALIZE_TRAMPOLINE): Likewise.
	(ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Likewise.
	* config/rs6000/rs6000.h (RETURN_ADDRESS_OFFSET): Likewise.

	* diagnostic.h (set_internal_error_function): Renamed.
	* toplev.h (internal_error): Renamed from fatal.
	(pfatal_with_name): Deleted.
	(fatal_io_error): Now has printf-style arguments.
	* diagnostic.c (pfatal_with_name): Deleted.
	(fatal_io_error): Rework to have args in printf-style.
	(set_internal_error_function): Renamed from set_fatal_function.
	(internal_error): Renamed from fatal.
	(error_recursion, fancy_abort): Call internal_error instead of fatal.
	* dwarf2out.c (get_cfa_from_loc_descr): Likewise.
	* emit-rtl.c (gen_realpart, gen_imagpart): Likewise.
	* expr.c (check_max_integer_computation_mode, expand_expr): Likewise.
	* flow.c (verify_flow_info): Likewise.
	* config/arm/arm.c (thumb_unexpanded_epilogue): Likewise.
	* config/mips/mips.c (save_restore_insns): Likewise.

	* except.c (duplicate_eh_handlers): Call abort instead of fatal.
	* flow.c (verify_flow_info): Likewise.	
	* config/arm/arm.c (thumb_load_double_from_address): Likewise.
	* config/avr/avr.c (pttreg_to_str, unique_section): Likewise.
	(avr_normalize_condition): Likewise.
	* config/c4x/c4x.c (c4x_emit_libcall, c4x_valid_operands): Likewise.
	* config/dsp16xx/dsp16xx.c (dsp16xx_reg_class_from_letter): Likewise.
	(limit_reload_class, double_reg_to_memory): Likewise.
	(print_operand_address, emit_1600_code_shift): Likewise.
	(gen_tst_reg, gen_compare_reg): Likewise.
	* config/m68hc11/m68hc11.c (m68hc11_emit_libcall): Likewise.
	* config/dsp16xx/dsp16xx.c (dsp16xx_invalid_register_for_compare):
	Deleted.
	* config/dsp16xx/dsp16xx.md (unnamed cmphi): Call abort instead of it.

	* c-parse.in (methoddef): Call fatal_error instead of fatal.
	* objc/objc-act.c (build_ivar_chain): Likewise.
	* dwarfout.c (dwarfout_init): Call fatal_io_error instead of
	pfatal_with_name.
	* graph.c (clean_graph_dump_file): Likewise.
	* profile.c (init_branch_prob): Likewise.
	* objc/objc-act.c (objc_init): Likewise.
	
	* config/arm/arm.c (arm_override_options): Make errors non-fatal.
	* config/avr/avr.c (avr_override_options): Likewise.	
	* config/c4x/c4x.c (c4x_expand_prologue): Likewise.
	* config/dsp16xx/dsp16xx.c (function_prologue): Likewise.
	* config/h8300/h8300.c (h8300_init_once): Likewise.
	* config/mips/mips.c (override_options): Likewise.
	* config/i386/i386.c (override_options): Likewise, rework.
	* config/m68k/m68k.c (override_options): Likewise.

	* config/dsp16xx/dsp16xx.c (print_operand): Call output_operand_lossage
	instead of fatal.
	* config/mips/mips.c (print_operand): Likewise.
	* hash.c (hash_allocate): Don't check for failure returns from
	obstack functions that can't fail.
	(hash_table_init_n, hash_table_init): Likewise; also now return void.
	* hash.h (hash_table_init_n, hash_table_init): Now return void.
	* objc/objc_act.c (objc_check_decl): Remove unneeded fatal call.
	(get_object_reference): Likewise.

2001-02-04  Nick Clifton  <nickc@redhat.com>

	* config/arm/arm.c (all_cores): Add 710T, 720T, 740T, 940T, 9e,
	StrongARM1110, 10TDMI, and 1020T.

2001-02-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* mips.h (MULTILIB_ISA_DEFAULT): Don't use #elif.

2001-02-04  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (movdf load split): Pass register number to
	FP_OR_XD_REGISTER_P.

2001-02-04  Mark Mitchell  <mark@codesourcery.com>

	* cppinit.c (BC): New macro.
	(builtin_array): Add __GXX_WEAK__.
	* cpplib.h (builtin_type): Add BT_WEAK.
	* cppmacro.c (builtin_macro): Handle BT_WEAK.
	* defaults.h (SUPPORTS_ONE_ONLY): Define.
	* varasm.c (SUPPORTS_ONE_ONLY): Do not define.

2001-02-03  Jakub Jelinek  <jakub@redhat.com>

	* cppinit.c (append_include_chain): Honor NO_IMPLICIT_EXTERN_C.

2001-02-03  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpphash.h: Rename _ALIGN POOL_ALIGN.
	* cpplex.c (new_chunk, _cpp_pool_reserve): Update.  

2001-02-03  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpphash.h: Rename ALIGN _ALIGN.
	* cpplex.c (new_chunk, _cpp_pool_reserve): Update.  

Fri Feb  2 23:15:29 2001  Christopher Faylor <cgf@cygnus.com>

	* config/i386/cygwin.h (CPP_SPEC): Reorganize YA to better handle cross
	compilation environment.
	* config/i386/t-cygwin (T_CPPFLAGS): Define CYGWIN_CROSS_DIR to allow
	control over location of cygwin includes and libs.

2001-02-03  Michael Hayes  <m.hayes@elec.canterbury.ac.nz)

	* c4x.h	(HARD_REGNO_CALL_PART_CLOBBERED): Fix typo.

2001-02-02  lars brinkhoff  <lars@nocrew.org>

	* md.texi (Standard Names): remove reference to spur.md.

2001-02-03  Michael Hayes  <m.hayes@elec.canterbury.ac.nz)

	* c4x.h (IS_INT_CALL_SAVED_REG, IS_FLOAT_CALL_SAVED_REG): Define.
	(HARD_REGNO_CALL_PART_CLOBBERED): Use IS_FLOAT_CALL_SAVED_REG.
	(INITIAL_FRAME_POINTER_OFFSET, INITIAL_ELIMINATION_OFFSET): Likewise.
	* c4x.c (c4x_hard_regno_rename_ok): Use IS_XXX_CALL_SAVED_REG.
	(c4x_expand_prologue, c4x_expand_epilogue): Likewise.

2001-02-03  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* c4x.c (group1_reg_operand, group1_mem_operand, arx_reg_operand,
	c4x_arn_reg_operand, c4x_arn_mem_operand): Do not check register
	number before reload.
	(c4x_adjust_cost): Return zero before reload.
	* c4x.md (load_immed_address+1, load_immed_address+2): Do not
	split before reload.

2001-02-03  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* c4x.c (c4x_hard_regno_rename_ok): New.
	* c4x-protos.h (c4x_hard_regno_rename_ok): New.
	* c4x.h (HARD_REGNO_RENAME_OK): Define.

Fri Feb  2 20:03:50 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* diagnostic.h: Add missing "extern" in all declarations.

2001-02-02  Alex Samuel  <samuel@codesourcery.com>

	* Makefile.in (gcc_gxx_target_include_dir): Generate dynamically
	as for gcc_gxx_include_dir.

2001-02-02  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpp.texi, invoke.texi: Update -Wtraditional documentation.

2001-02-02  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.c (output_far_jump): Don't use braf on SH1.  Emit
	label before alignment to be used as the braf base address.
	* config/sh/sh.md (length): Use longer lengths for SH1 PIC far
	branches.
	(casesi_jump_2): Require at least TARGET_SH2.

	* config/float-sh.h (LDBL_EPSILON, LDBL_MIN, LDBL_MAX): Prevent
	truncation to 32-bit doubles on -m3e and -m4-single-only.

2001-02-02  Mark Mitchell  <mark@codesourcery.com>

	* gcc.c (init_gcc_specs): New function.  Make -shared-libgcc 
	the default when building a shared object.
	(init_spec): Use it.
	* testsuite/lib/g++.exp: Include the directory where libgcc
	is located to the LD_LIBRARY_PATH list.
	* invoke.texi (-shared-libgcc): Document the cases in which
	GCC defaults to using the shared libgcc.
	
2001-02-02  Alexandre Oliva  <aoliva@redhat.com>

	* config/fp-bit.h (MAX_USI_INT, MAX_SI_INT): Don't assume
	unsigned is wide enough.
	(BITS_PER_SI): New.
	* config/fp-bit.c (_fpmul_parts): Don't assume 32-bits SI.
	(si_to_float): Likewise.
	(float_to_si, float_to_usi): Use BITS_PER_SI.

2001-02-01  Jeffrey Oldham  <oldham@codesourcery.com>

	* dwarf2out.c: Added explanation of abbreviations.
	(def_cfa_1): Added comments listing DWARF2 instructions.
	(cfa_temp_reg): Removed in favor of cfa_temp.
	(cfa_temp_value): Removed in favor of cfa_temp.
	(cfa_temp): New global variable.
	(dwarf2out_frame_debug_expr): Added extensive introductory
	comments explaining the function's transformations.  Revised to
	use cfa_temp.  Added some rtx checking.  Generalize IOR case.
	(dwarf2out_frame_debug): Revised to use cfa_temp.
	(output_aranges): Cast as "unsigned" to avoid warning.
	* rtl.texi (RTX_FRAME_RELATED_P): Revise entry to emphasize better
	explain which instructions must be marked.

2001-02-01  Richard Henderson  <rth@redhat.com>

	* local-alloc.c (update_equiv_regs): Copy INSN_CODE to the
	new instruction.

2001-02-01  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/crt1.asm (main_k): Modified so that start calls
	___setup_argv_and_call_main.

2001-02-01  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpphash.h (struct cpp_buffer): Move saved_flags from cpp_reader.
	* cpplex.c (_cpp_lex_token): New token picks up the saved flags,
	and AVOID_LPASTE is cleared on meeting an unescaped newline.
	* cppmacro.c (builtin_macro): Set builtin flags here.
	(paste_all_tokens): Preserve AVOID_LPASTE on pasted token.
	(replace_args): Clarify intent.
	(cpp_get_token): Macro expansion tokens get the saved flags.
	Update.
	* cppmain.c (scan_buffer): Remove now-redundant print.printed
	check.

2001-02-01  Jeffrey Oldham  <oldham@codesourcery.com>

	* config/mips/iris6.h (SUPPORTS_INIT_PRIORITY): Reverse change of
	2001-Jan-29.

Thu Feb  1 07:22:41 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* builtins.c (expand_builtin_alloca): allocate_dynamic_stack_space
	returns Pmode pseudo, but we need ptr_mode.
	* explow.c (allocate_dynamic_stack_space): Use plus_constant.
	Remove bogus conversions; use HOST_WIDE_INT for size.
	Don't use TARGET if wrong mode.

	* config/i386/i386.c (ix86_compute_frame_size): Allow
	stack_alignment_needed to be non-default even if size is zero.

2001-01-31  Alan Modra <alan@linuxcare.com.au>

	* (hppa_init_pic_save): Emit the pic offset table
	reg save after last_parm_insn.
	* pa.c (hppa_init_pic_save): New function.
	* pa.h (hppa_init_pic_save): Declare.
	* pa.md (call, call_value, sibcall, sibcall_value): Use
	the above instead of duplicated code.

	* pa.c (hppa_encode_label): Correct size of alloca buffer
	so we don't overrun it.  Correct leading `*' case.
	* pa.h (STRIP_NAME_ENCODING): Simplify now that we don't
	need to handle `*@'.
	(FUNCTION_NAME_P): Likewise.

2001-01-31  Richard Henderson  <rth@redhat.com>

	* config.gcc (alpha-osf5): Use float-i128.h.

	* config/float-i128.h (FLT_EVAL_METHOD, DECIMAL_DIG): Define.
	* config/float-i32.h: Likewise.
	* config/float-i64.h: Likewise.
	* config/float-sh.h: Likewise.
	* config/float-sparc.h: Likewise.

2001-01-31  DJ Delorie  <dj@redhat.com>

	* expmed.c (extract_bit_field): allow non-integral modes if we
	want to extract a whole register from itself.

2001-01-31  Jakub Jelinek  <jakub@redhat.com>

	* c-typeck.c (set_init_index): If first is equal to last, assume as
	if it was not a range at all.

2001-01-31  Alexandre Oliva  <aoliva@redhat.com>

	* config/fp-bit.c: Include tm.h.
	(float_to_si): Don't assume SImode is 32-bits wide.
	(float_to_usi): Likewise.

2001-01-31  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-parse.in (structsp): Pedwarn when "enum foo" refers to an
	incomplete type.
	(typename): Call pending_xref_error after parsing typed_typespecs.
	* c-decl.c (lookup_tag): Give error immediately rather than
	leaving it pending if the tag of the wrong type is in the same
	binding level.
	(xref_tag): Don't pedwarn for forward declarations of enum types
	here.
	* gcc.texi (Actual Bugs): Remove entry for misuse of struct, union
	and enum tags.

2001-01-31  Alexandre Oliva  <aoliva@redhat.com>

	* config/float-sparc.h (LDBL_MAX) [sparc32]: Fix typo.

2001-01-31  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpplib.c (T_ELIF): Move to STDC89, not that it matters.
	(_cpp_handle_directive): Suggest not using #elif with -Wtraditional.

2001-01-31  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpphash.h (struct cpp_reader): New saved_flags.
	* cppmacro.c (cpp_get_token): Use saved_flags to remember
	to avoid a paste after a pasted token.
	  
2001-01-31  Alexandre Oliva  <aoliva@redhat.com>

	* libgcc2.h (Wtype_MAX, Wtype_MIN): Define.
	* libgcc2.c (__fixunssfSI, __fixunsdfSI, __fixunsxfSI): Use
	Wtype_MIN instead of LONG_MIN.

2001-01-30  Jeffrey Oldham  <oldham@codesourcery.com>

	* fixinc/fixincl.tpl: Add 2001 to copyright.  Change name of
	README file.
	* fixinc/fixincl.x: Regenerated.
	* fixinc/inclhack.def (irix_limits_const): New definition to
	convert "const" to "__const" in limits.h.

2001-01-30  Jeffrey Oldham  <oldham@codesourcery.com>

	* fixinc/genfixes (AG): Fix "autogen4" thinko.

2001-01-30  Herman A.J. ten Brugge  <Haj.Ten.Brugge@net.HCC.nl>

	* regmove.c (try_auto_increment): Change REG_DEAD into REG_UNUSED
	when register dies in the insn.

2001-01-30  Neil Booth  <neil@daikokuya.demon.co.uk>

	* diagnostic.c (fatal): Fix word wrap.

2001-01-30  Alexandre Oliva  <aoliva@redhat.com>

	* combine.c (try_combine): Fix SUBREG setting for
	HOST_BITS_PER_WIDE_INT >= 2 * BITS_PER_WORD.

2001-01-30  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* jump.c (comparison_dominates_p): Don't try to handle UNKNOWN
	comparison codes.

2001-01-30  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-decl.c (c_expand_body): Check TYPE_SIZE_UNIT (ret_type)
	is not NULL.
	* toplev.c (decode_W_option): Update warn_larger_than
	unconditionally for each processed switch.

2001-01-30  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.c (pa_init_machine_status): Initialize pic_offset_table_save_rtx
	to NULL_RTX.
	(hppa_expand_prologue): Delete code to save pic offset table register
	in the function prologue.
	* pa.h (PIC_OFFSET_TABLE_SAVE_RTX): Correct type in comment.
	* pa.md (call, call_value, sibcall, sibcall_value): Save the pic offset
	table register at the beginning of the function after the prologue.

2001-01-29  lars brinkhoff  <lars@nocrew.org>

	* tm.texi (PUSH_ROUNDING): Remove duplicate lines.

2001-01-29  John David Anglin  <dave@hiauly1.hia.nrc.ca>
	    Jeff Law <law@redhat.com>

	* pa.md (return): Revise comment for trivial return.
	(return_internal): Non-trivial return pattern for non-PIC code.
	(return_internal_pic): Non-trivial return pattern for PIC code.
	It uses the PIC register to ensure it is restored after
	function calls.
	(epilogue): Generate appropriate return for PIC and non-PIC code.

Mon Jan 29 23:53:14 2001  Christopher Faylor <cgf@cygnus.com>

	* config/i386/cygwin.h: Fix -mno-cygwin search path for link.

2001-01-29  DJ Delorie  <dj@redhat.com>

	* combine.c (if_then_else_cond): Pass the correct mode to
	operand_subword() for constants.

Mon Jan 29 20:38:19 2001  Christopher Faylor <cgf@cygnus.com>

	* config/i386/cygwin.h: Add w32api to include search.  Search different
	directories in a cross-build environment.

2001-11-29  Tim Josling  <tej@melbpc.org.au>

	* tree.h (TYPE_STUB_DECL): Add documentation.

2001-11-29  Laurynas Biveinis  <lauras@softhome.net>

	* sdbout.c (sdbout_one_type): Skip types with indeterminate size.
	(sdbout_field_types): Likwise.  Fix use of host_integerp.

2001-01-29  Thomas Pfaff  <tpfaff@gmx.net>

	* mingw32.h: Override STARTFILE_SPEC and LINK_SPEC declared in
	cygwin.h.

2001-01-29  Jeffrey Oldham  <oldham@codesourcery.com>

	* config/mips/iris6.h (SUPPORTS_INIT_PRIORITY): Revise definition
	to use flag_gnu_linker.

2001-01-29  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpplib.c (T_BAD_DIRECTIVE): Remove.
	(_cpp_init_stacks): Loop from 0 to N_DIRECTIVES - 1.

2001-01-29  Joseph S. Myers  <jsm28@cam.ac.uk>

	* tree.c, tree.h (build_parse_node): Remove; was identical to
	build_nt.
	* c-lang.c (start_cdtor), objc/objc-act.c
	(build_module_descriptor): Use build_nt instead of
	build_parse_node.

2001-01-29  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.md (addqi_1_lea): Fix mode (QI instead of HI).
	(testqi_1, andqi_2): If widening to SImode, make sure CONST_INT does
	not have any upper bits set.

2001-01-29  Phil Edwards  <pme@sources.redhat.com>

	* COPYING.LIB:  Update to LGPL 2.1 from the FSF.

2001-01-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* stmt.c (estimate_case_costs): Use integer_minus_one_node.

	* tree.c (build_common_tree_nodes_2): Set integer_minus_one_node.

	* tree.h (tree_index): Add new element TI_INTEGER_MINUS_ONE.
	(integer_minus_one_node): Define.

2001-01-28  Alexandre Oliva  <aoliva@redhat.com>

	* Makefile.in (bootstrap2-lean): Fix typo.

2001-01-28  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpphash.c (_cpp_cleanup_hashtable, _cpp_lookup_with_hash)
	: Don't set fe_value.
	* cpplib.h (AVOID_LPASTE): New flag. 
	(struct cpp_hashnode): Remove fe_value.
	* cpplex.c (cpp_avoid_paste): Don't paste '.' with a number.
	* cppmacro.c (builtin_macro): Don't set flags here.
	(replace_args): Set AVOID_LPASTE flag on first token of an
	argument, and the token following it.
	(cpp_get_token): Set AVOID_LPASTE flag on first token of a
	macro expansion, and on the token following it.  Do it for
	builtins too.
	* cppmain.c (scan_buffer): Avoid pasting only flagged tokens.

2001-01-27  Richard Henderson  <rth@redhat.com>

	* config/alpha/t-ieee: Remove multilibbing.
	(TARGET_LIBGCC2_CFLAGS): Add -mieee.

2001-01-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* configure.in: Arrange to include defaults.h in [ht]config.h/tm.h.

	* Makefile.in: Remove all dependencies on defaults.h.
	* builtins.c: Don't include defaults.h.
	* c-common.c: Likewise.
	* c-decl.c: Likewise.
	* c-pragma.c: Likewise.
	* c-typeck.c: Likewise.
	* combine.c: Likewise.
	* i386.c: Likewise.
	* frame-ia64.c: Likewise.
	* cppexp.c: Likewise.
	* crtstuff.c: Likewise.
	* dbxout.c: Likewise.
	* dwarf2out.c: Likewise.
	* dwarfout.c: Likewise.
	* emit-rtl.c: Likewise.
	* except.c: Likewise.
	* expr.c: Likewise.
	* final.c: Likewise.
	* frame-dwarf2.c: Likewise.
	* libgcc2.c: Likewise.
	* optabs.c: Likewise.
	* profile.c: Likewise.
	* sdbout.c: Likewise.
	* toplev.c: Likewise.
	* tradcif.y: Likewise.
	* tree.c: Likewise.
	* varasm.c: Likewise.

2001-01-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (expand_builtin_fputs): Use size_one_node when
	transforming into fwrite.

2001-01-27  Joseph S. Myers  <jsm28@cam.ac.uk>

	* extend.texi (Attribute Syntax): New section.

2001-01-27  Michael Sokolov  <msokolov@ivan.Harhan.ORG>

	* fixproto: Correctly install synthesised unistd.h and stdlib.h when
	they didn't need fixing.

2001-01-27  Janis Johnson <janis@us.ibm.com>

	* config.gcc (i[34567]86-sequent-{ptx4*,sysv4*}): Use usegas.h
	if appropriate.
	* config/ptx4.h: Several fixes to build on DYNIX/ptx v4.[456], and
	to remove macro definitions that are duplicated from elfos.h.

2001-01-27  Richard Henderson  <rth@redhat.com>

	* config/i386/sco5gas.h: Move ...
	* config/usegas.h: ... here.
	* config.gcc (i[34567]86-*-sco3.2v5) [tm_file]: Update.

2001-01-27  Jakub Jelinek  <jakub@redhat.com>

	* c-typeck.c (struct constructor_stack): Add range_stack member.
	(really_start_incremental_init): Clear it.
	(push_init_level): Save constructor_range_stack and clear it if
	pushing explicit braces.
	(pop_init_level): abort if constructor_range_stack is non-zero at
	explicit closing brace.  Restore saved constructor_range_stack if
	not implicit.

2001-01-27  Alexandre Oliva  <aoliva@redhat.com>

	* expr.c (emit_move_insn): Add REG_EQUAL note when constant loaded
	into register was forced into memory.

2001-01-27  Alexandre Oliva  <aoliva@redhat.com>

	* Makefile.in: Remove uses of + before $(MAKE).

2001-01-26  Richard Henderson  <rth@redhat.com>

	* stmt.c (cost_table): Remove.
	(COST_TABLE, cost_table_initialized): New.
	(estimate_case_costs): Use the later instead of the former.
	(balance_case_nodes): Likewise.

2001-01-26  Richard Henderson  <rth@redhat.com>

	* alias.c (objects_must_conflict_p): Read-only slots may not
	conflict despite having the same type.

2001-01-27  Michael Hayes  <mhayes@redhat.com>

	* loop.c (loop_giv_reduce_benefit): Copy mode size into
	int variable.
	(check_ext_dependant_givs): Initialise u_start_val and
	u_end_val.
	(load_mems): Make last_max_reg unsigned.
	(try_swap_copy_prop): Use INSN_P and initialise set.

Fri Jan 26 23:22:58 2001  Denis Chertykov  <denisc@overta.ru>

	* README.AVR : Removed.

Fri Jan 26 11:37:26 2001  Jeffrey A Law  (law@cygnus.com)

	* pa-64.h (text_section): Remove declaration.

	* pa.md (return_internal): Remove mode on PIC register use.

2001-01-25  lars brinkhoff  <lars@nocrew.org>

	* tm.texi (DATA_ALIGNMENT, LOCAL_ALIGNMENT, ASM_OPEN_PAREN,
	ASM_CLOSE_PAREN): fix typos.

2001-01-25  Mark Mitchell  <mark@codesourcery.com>

	* acconfig.h: Define `const' to the empty string if neither
	__STDC__ nor __cplusplus is defined.
	* config.in: Regenerated.

2001-01-25  David Edelsohn  <edelsohn@gnu.org>

	* config.gcc (rs6000-ibm-aix[5-9]*): Change to aix51.h.
	* collect2.c (main): Delete importf.  Add ".obj" file extension.
	(GCC_CHECK_HDR): Handle AIX V5 new magic number.
	(aix_std_libs): Add additional AIX libraries to skip.
	* config/rs6000/aix.h (MY_ISCOFF): Add AIX V5 new magic number.
	* config/rs6000/aix51.h: New file.

2001-01-25  Michael Hayes  <mhayes@redhat.com>

	* loop.c (loop_call_insn_emit_before, loop_call_insn_hoist): New.
	(loop_insn_emit_before): No longer static.
	(move_movables): Replace emit_insn_after with loop_insn_emit_after.
	(loop_givs_rescan, load_mems): Likewise.
	(check_dbra_loop): Replace emit_insn_before with loop_insn_emit_before.
	(maybe_eliminate_biv_1):
	(move_movables): Replace emit_call_insn_before with
	loop_call_insn_hoist.
	* loop.h (loop_insn_emit_before): Add.
	* unroll.c (copy_loop_body): Replace emit_insn_before with 
	loop_insn_emit_before.

2001-01-25  Neil Booth  <neil@daikokuya.demon.co.uk>

	* diagnostic.c (fatal): Request preprocessed source.

Thu Jan 25 02:01:16 2001  J"orn Rennecke <amylaar@redhat.com>

	* c-decl.c (duplicate_decls): If different_binding_level is nonzero,
	olddecl has argument types and newdecl has none, use the argument
	types from olddecl.

2001-01-24  Ulrich Drepper  <drepper@redhat.com>

	* dwarf2out.c (prefix_of): New function.  Determine longest common
	prefix of the two arguments.  The units are whole path components.
	(output_file_names): When adding a new directory find the one entry
	with the longest common prefix already in the list.  Artificially
	generate entry if there is none for this prefix.
	Fix test to check whether the zeroth directory entry is used.

Wed Jan 24 23:51:55 2001  J"orn Rennecke <amylaar@redhat.com>

	* reload1.c (reload_reg_free_for_value_p): New parameter start_regno.
	Changed all callers.  Take it into account when deciding if a
	previously loaded value matches.

2001-01-24  Richard Henderson  <rth@redhat.com>

	* reload.c (find_reloads_subreg_address): Fail the substitution
	if the resulting address is insufficiently aligned.

2001-01-24  DJ Delorie  <dj@redhat.com>

	* combine.c (combine_simplify_rtx): If the modes are all VOIDmode,
	check the original operand's mode also.
	* simplify-rtx.c (simplify_ternary_operation): Ditto.

2001-01-24  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-parse.in (cast_expr): Move compound literals from here ...
	(primary): ... to here.  Use standard terminology "compound
	literal" instead of "constructor expression".

2001-01-24  Joseph S. Myers  <jsm28@cam.ac.uk>

	* gcc.1, cpp.1: Regenerate.

2001-01-24  Alexandre Oliva  <aoliva@redhat.com>

	* calls.c (emit_library_call_value_1): Memory slot for
	pass-by-reference argument should have the mode of the argument,
	not of the pointer to it.

2001-01-24  Tom Tromey  <tromey@redhat.com>

	* gcc.texi (G++ and GCC): Mention gcj manual.
	(Standards): Link to section of manual mentioning gcj/Java
	compatibility.

2001-01-24  Jakub Jelinek  <jakub@redhat.com>

	* cppfiles.c (_cpp_read_file): Add to dependencies if requested.
	* cppinit.c (cpp_start_read): Remove deps_add_dep call.
	* tradcpp.c (main): Add -imacros or -include'd dependencies
	for -M*.
	* cpp.texi (-M, -MM): Document -M -include behaviour.

2001-01-24  Roger Collins <roger@ProProject.com>

	* config/i386/xm-i386.h: Make __i386__ a boolean macro.

2001-01-24  Will Cohen  <wcohen@redhat.com>

	* config/mips/abi64.h (RETURN_IN_MEMORY): Always take into account
	whether registers are 32 bits or 64 bits in size.

2001-01-24  Ben Elliston  <bje@redhat.com>

	* config/m32r/m32r.h (PREDICATE_CODES): Remove m32r_not_same_reg.

2001-01-24  Richard Henderson  <rth@redhat.com>

	* config/alpha/alpha.md (builtin_longjmp_internal): New.
	(builtin_longjmp): Use it instead of emit_indirect_jump.

2001-01-23  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* bb-reorder.c (make_reorder_chain_1): Handle case where
	jump edge goes to the same block as the fallthru edge.

2001-01-23  Jim Wilson  <wilson@redhat.com>

	* dwarf2out.c (dwarf2out_line): Make last_file_num be unsigned.
	* frame.h (__ia64_personality_v1): Add prototype.
	* libgcc2.c (ia64_throw_helper): Change personality declaration to
	prototype form.  Add void * cast to first argument to personality
	call.
	* real.c (e113toe): Surround with INTEL_EXTENDED_IEEE_FORMAT ifdefs.
	(asctoe113): Likewise.
	* config/ia64/frame-ia64.c: Include eh-common.h.
	* config/ia64/ia64-protos.h (sdata_section, sbbs_section): Add
	prototypes.
	* config/ia64/ia64.c (emit_insn_group_barriers): Add ATTRIBUTE_UNUSED
	to dump parameter.
	(itanium_split_issue): Add prototype.
	(gen_nop_type): Ifdef out.
	(find_best_packet): Initialize best_packet.
	(ia64_encode_section_info): New local string.  Use for ggc_alloc_string
	result.
	* config/ia64/ia64.h (ASM_OUTPUT_LONG_DOUBLE): Use 0L not 0.
	* config/ia64/ia64.md (bsp_value): Add explicit stop bit at start.
	(flushrs): Add explicit stop bit at end.
	* config/ia64/lib1funcs.asm (__ia64_restore_stack_nonlocal): Change
	trailing \ to >.

2001-01-23  Chris Demetriou  <cgd@broadcom.com>

	* libgcc-std.ver (GCC_3.0): Add __terminate_func_set to list
	of EH symbols.
	* libgcc2.c (__terminate_func): Make variable static.
	(__terminate_set_func): New function to set __terminate_func.
	* libgcc2.h (__terminate_func_ptr): New typedef.
	(__terminate_set_func): New function.

2001-01-23  Richard Henderson  <rth@redhat.com>

	* flow.c (init_propagate_block_info): Don't consider unchanging
	memories for dead frame store elimination.

2001-01-23  Richard Henderson  <rth@redhat.com>

	* varasm.c (UNIQUE_SECTION): Move default implementation ...
	* defaults.h: ... here.

2001-01-24  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* c4x.h (TARGET_LOAD_DIRECT_MEMS): Define.

2001-01-23  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lex.c (lex_charconst): Fix typo: s/p/str.

2001-01-23  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* rs6000.h (rs6000_return_addr): Move prototype from here...
	* rs6000-protos.h (rs6000_return_addr): ...to here.
	(rs6000_init_expanders): Delete prototype.

2001-01-23  Nick Clifton  <nickc@redhat.com>

	* invoke.texi: Replace , with \, inside @gccoptlist macros.
	(Spec Files): Document %B and %j and %.	and %v3 and %M and
	%{S*&T} spec switches.

2001-01-24  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* c4x.c (c4x_r11_set_p): Calculate rtx code correctly.

2001-01-23  Chris Demetriou  <cgd@sibyte.com>
	    Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpperror.c: Merge handlers of PEDWARN and WARNING.
	Have -Werror make pedantic warnings errors, like the
	rest of GCC.

2001-01-23  Phil Edwards  <pme@sources.redhat.com>

	* c-tree.texi (IDENTIFIER_LENGTH):  Fix typo.

2001-01-23  Jakub Jelinek  <jakub@redhat.com>

	* integrate.h (struct inline_remap): Add compare_src, compare_mode.
	* integrate.c (expand_inline_function): Initialize them.
	(subst_constants): If changing COMPARE so that both its arguments
	will be VOIDmode and the comparison mode will be lost, note
	compare_mode.  Use the recorded compare_mode to optimize
	IF_THEN_ELSE.

2001-01-23  Jason Merrill  <jason@redhat.com>

	* dwarf2out.c (new_die): Use xcalloc.
	(output_die): Abort rather than emit a local reference to offset 0.

2001-01-17  Andrew Haley  <aph@redhat.com>

	* libgcc2.c (get_reg_addr): Don't abort if we haven't got a copy
	of a saved register; return NULL instead.
	(copy_reg): Take a pointer to a source register rather than a
	frame_state.
	(next_stack_level): Remember the address in the stack frame of all
	saved registers.
	Use the saved register pointer array as the source of the CFA.
	(throw_helper): Rewrite.  Unwind once rather than twice and keep
	track of saved registers as we go.

2001-01-23  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* c4x-protos.h (c4x_legitimize_reload_address): Remove.
	* c4x.c (c4x_legitimize_reload_address): Remove.
	* c4x.h (LEGITIMIZE_RELOAD_ADDRESS): Rewrite to generate correct
	reload address for ldp(k) insn.

Mon Jan 22 20:53:47 2001  Jeffrey A Law  (law@cygnus.com)

	* pa.md (return_internal): Add a USE of the PIC register to ensure
	it is restored after each call.
	(return expander): Corresponding changes.

2001-01-22  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* rs6000.h (INIT_EXPANDERS): Delete.
	(RETURN_ADDR_RTX): Call rs6000_return_addr().
	* rs6000.c (rs6000_override_options): Call *_machine_status from
	here...
	(rs6000_init_expanders): ...instead of here. Delete.
	(rs6000_mark_machine_status): New function.
	(rs6000_init_machine_status): Use xcalloc.
	(rs6000_return_addr): Generate RTX for the return address.
	(rs6000_ra_ever_killed): New, check if LR was ever destroyed.
	(rs6000_stack_info): Use it.

2001-01-22  Thomas Pfaff  <tpfaff@gmx.net>

	* gthr-win32.h: Include errno.h to get a declaration for
	EINVAL and _mingw.h if the target is mingw32.

2001-01-22  Andres Felipe Vargas <avargas@teletulua.com.co>

	* cpp.texi: Correct typos.

Mon Jan 22 13:59:09 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* explow.c (probe_stack_range): Ensure value passed to
	stack_check_libfunc is ptr_mode, not Pmode.

Mon Jan 22 16:53:06 2001  J"orn Rennecke <amylaar@redhat.com>

	* recog.c (validate_replace_rtx_1): In ZERO_EXTEND / SIGN_EXTEND
	case, don't use operand_subword to calculate a SUBREG that is
	wider than a word.

	* rtl.texi: Comparisons yield 0 or STORE_FLAG_VALUE.

2001-01-22 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* c4x.c (c4x_valid_rptb_p, c4x_label_ref_used_p): New functions.
	(c4x_rptb_insert): Call c4x_valid_rptb_p to check if repeat block is
	valid.  If not replace it by equivalent insns.

2001-01-22 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* c4x.c (c4x_check_legit_addr): Only check CONST.  Not if CONST
	contains SYMBOL_REF, LABEL_REF and CONST_INT.
	(c4x_U_constraint, symbolic_address_operand): Likewise.
	(c4x_immed_float_constant): Do not check if CONST_DOUBLE is in
	memory.
	(c4x_r11_set_p, c4x_check_laj_p): New functions.
	* c4x-protos.h (c4x_check_laj_p): Add prototype.
	* c4x.md (in_annul_slot_3): Do not allow auto-increment in last
	anulling slot because of silicon bug.
	(laj, lajv): Call c4x_check_laj_p to check for silicon bug.

2001-01-22  Alan Modra <alan@linuxcare.com.au>

	* cppexp.c (parse_charconst):  Change `mask' type to agree
	with parse_escape.

2001-01-21  Richard Henderson  <rth@redhat.com>

	* config/i386/i386.c (ix86_asm_file_end): Disable putting
	pic_label_name in a linkonce section.

2001-01-17  Philipp Thomas  <pthomas@suse.de>

	* aclocal.m4 (AM_WITH_NLS): Add -lintl to LIBS if gettext was
	found in libintl.
	* configure: Regenerate.

Sun Jan 21 02:38:56 2001  J"orn Rennecke <amylaar@redhat.com>

	* expmed.c (synth_mult, expand_mult_highpart, expand_divmod): Guard
	uses of shift_cost, shiftadd_cost and shiftsub_cost with bound checks.

Sun Jan 21 09:44:17 2001  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.c (ret_cond_branch): New argument (reverse) added.
	If REVERSE nonzero then condition code in X must be reversed.
	(encode_section_info): Optimise if/else.
	(avr_function_value): Fix formatting.

	* config/avr/avr.md (branch): Call to ret_cond_branch changed.
	(difficult_branch): Likewise.
	(rvbranch): Likewise.
	(difficult_rvbranch): Likewise.

	* config/avr/avr-protos.h (ret_cond_branch): Prototype changed.

	* config/avr/libgcc.S: Fix comment.

2001-01-20  Michael Sokolov  <msokolov@ivan.Harhan.ORG>

	* sdbout.c (PUT_SDB_DEF): Fix after last bogus change.

2001-01-20  Michael Sokolov  <msokolov@ivan.Harhan.ORG>

	* cppinit.c (INO_T_EQ): Don't use #elif, fix formatting.

2001-01-20  Michael Sokolov  <msokolov@ivan.Harhan.ORG>

	* aclocal.m4 (gcc_AC_FUNC_STRSTR): New macro.
	* configure.in (gcc_AC_FUNC_STRSTR): Add invokation.
	* configure, config.in: Regenerate.
	* Makefile.in (STRSTR, HOST_STRSTR, USE_HOST_STRSTR): New variables.
	(LIBDEPS, HOST_LIBDEPS, LIBS, HOST_LIBS): Add strstr handling.
	(strstr.o, $(HOST_PREFIX_1)strstr.o): New rules.
	(doprint.o): New rule.

2001-01-20  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-typeck.c (digest_init): Handle boolean types as scalars.

Sat Jan 20 12:46:57 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* stmt.c (expand_return): Don't return anything if size is zero.
	Delete redundant assignment to BYTES.
	* expr.c (move_block_from_reg): Do nothing if NREGS is zero.

2001-01-20  Marek Michalkiewicz  <marekm@linux.org.pl>

	* config/avr/avr.h (INIT_TARGET_OPTABS): Remove most of it, was
	the same as the default library function names.
	* config/avr/avr.md: Document special characters after '%'.
	(mulqi3, mulhi3, mulsi3): Call libgcc.S functions ourselves,
	knowing which of the call-used registers are really clobbered.
	(divmodqi4, udivmodqi4, divmodhi4, udivmodhi4, divmodsi4, udivmodsi4):
	New.  Both quotient and remainder from one libgcc.S call.
	* config/avr/libgcc.S: Optimize mul/divmod for the new insns above,
	clobber as few registers as possible.
	* config/avr/t-avr (LIB1ASMFUNCS): Adjust for the above changes.

2001-01-20  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppmacro.c (funlike_invocation_p): Don't move back up to the
	context of the top of the stack.

2001-01-20  Jakub Jelinek  <jakub@redhat.com>

	* function.c (fixup_var_refs): Move CALL_PLACEHOLDER handling...
	(fixup_var_refs_insns): ...here.

2001-01-20  Zack Weinberg  <zack@wolery.stanford.edu>

	* function.c (fixup_var_refs_insns): Break up into
	fixup_var_refs_insn [body of loop], fixup_var_refs_insns
	[loop over entire insn list], and fixup_var_refs_insns_with_hash
	[loop over hash table entries].
	(fixup_var_refs): Adjust calls to fixup_var_refs_insns and/or
	fixup_var_refs_insns_with_hash, to match above changes.

2001-01-19  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* Makefile.in (ORDINARY_FLAGS_TO_PASS): Add MAKEOVERRIDES variable.
	(libgcc.a): Likewise.
	(stmp-multilib): Likewise.
	(STAGE2_FLAGS_TO_PASS): Likewise.

2001-01-19  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.c (prepare_move_operands) [PIC]: Use operands[0] as
	temporary if no_new_pseudos.

2001-01-19  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinternals.texi: Update.

2001-01-19  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (arm_init_builtins): Re-enable builtins.

Fri Jan 19 13:02:56 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* rtl.texi (SET, CLOBBER): Document PARALLEL as SET_DEST possibility.
	* flow.c (mark_set_1, case PARALLEL): Don't require BLKmode, allow
	element to be null, and always expect an EXPR_LIST.
	* rtlanal.c (reg_overlap_mentioned_p, note_stores): Likewise.
	* sched-deps.c (sched_analyze_1): Likewise.
	* sched-rgn.c (check_live_1, update_live_1): Likewise.

	* regclass.c (max_set_parallel): New variable.
	(reg_scan): Take it into account in computation of max_parallel.
	(reg_scan_mark_refs, case SET): Compute it.

	* alias.c (rtx_equal_for_memref_p, case ADDRESSOF): Don't assume
	args are REG.
	* expr.c (store_constructor): Don't look at MEM_ALIAS_SET unless MEM.
	* function.c (assign_parms): Use INTVAL for a CONST_INT.

2001-01-19  Jason Merrill  <jason@redhat.com>

	* dwarf2out.c (gen_subprogram_die): Don't reuse the in-class decl
	for the abstract instance of an inline function.

Fri Jan 19 14:31:35 2001  Alexandre Oliva  <aoliva@redhat.com>
			  J"orn Rennecke <amylaar@redhat.com>

	* reload1.c (move2add_note_store): Treat all registers directly or
	indirectly derived from a base register as members of the same set
	of values.
	(reload_cse_move2add): Adjust accordingly.  Take mode and offset
	of base register into account.

Fri Jan 19 09:18:42 2001  J"orn Rennecke <amylaar@redhat.com>

	* alias.c (find_base_value): Recognize TRUNCATE.
	(record_set): In PLUS case, invalidate if other summand is also a
	base value.

Thu Jan 18 06:43:04 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* flow.c (mark_set_1, case PARALLEL): New case; rework to allow
	entry to be EXPR_LIST.
	* rtlanal.c (reg_overlap_mentioned_p): Allow PARALLEL in SET to
	be an EXPR_LIST (but not null, which other code doesn't allow).
	(note_stores): Properly handle PARALLEL in SET.
	Recursively call for top-level PARALLEL.
	* sched-deps.c (sched_analyze_1): Handle EXPR_LIST in PARALLEL in SET.
	* sched-rgn.c (check_live_1, update_live_1): Likewise.

	* config.gcc (rs6000-ibm-aix*, rs6000-bull-bosx): Add rs6000/aix.h.

2001-01-18  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpplib.c (_cpp_handle_directive): Use buffer->was_skipping,
	not pfile->skipping (== 0).

2001-01-17  Nick Clifton  <nickc@redhat.com>

	* config/rs6000/rs6000.c: Add prototypes for {init|free}_
	machine_status.

2001-01-17  Jim Wilson  <wilson@redhat.com>

	* invoke.texi (IA-64 options): Improve.

2001-01-17  Tom Tromey  <tromey@redhat.com>

	* invoke.texi (Optimize Options): Use `{}' to around @samp
	argument.

2001-01-17  Aldy Hernandez  <aldyh@redhat.com>

	* invoke.texi (-fno-guess-branch-probability): New option.

Wed Jan 17 13:26:34 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* combine.c (try_combine): Don't set i3_subst_into_i2 for
	case of making new double-word constant.
	Revert last change: instead just test i3_subst_into_i2.

2001-01-17  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.md (cmpqi_minus_1): Use {b} for QImode operation.
	Use q constraints instead of r.

Tue Jan 16 22:23:04 2001  Alan Modra (alan@linuxcare.com.au)

	* config/pa/pa.h (PIC_OFFSET_TABLE_REGNUM_SAVED): Remove.
	(machine_function): Define.
	(PIC_OFFSET_TABLE_SAVE_RTX) : Define.
	* config/pa/pa.c (pa_init_machine_status, pa_mark_machine_status,
	pa_free_machine_status): New functions.
	(override_options): Set {init,mark,free}_machine_status to above.
	(hppa_expand_prologue): Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa.md: Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED throughout.
	* config/pa/pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Remove
	references to PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

2001-01-15  DJ Delorie  <dj@redhat.com>

	* Makefile.in (gcov.1): Protect against texi2pod/pod2man failing.
	(cpp.1): Ditto.
	(gcc.1): Ditto.

Tue Jan 16 17:20:43 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* flow.c (propagate_on_insn): Make trying to delete a prologue
	or epilogue insn an ICE, not a warning.  Allow doing this if
	the current function returns with stack pointer depressed.

	* combine.c (try_combine): If i3_subst_into_i2, properly check for
	I3 having more than one SET.

2001-01-16  Jim Wilson  <wilson@redhat.com>

	* invoke.texi: Document IA-64 options.

	* config/ia64/ia64.c (ia64_print_operand_address): Delete 'B' support.
	(fixup_errata): Delete TARGET_A_STEP use.
	* config/ia64/ia64.h (MASK_A_STEP, TARGET_A_STEP): Delete.
	(TARGET_SWITCHES): Delete -ma-step option.
	* config/ia64/ia64.md (all FP patterns): Delete %B0.
	(movqicc_astep, movqi_internal_astep, movhicc_astep,
	movhi_internal_astep, movsicc_astep, movsi_internal_astep, movdi+1,
	movdi_internal_astep, movsfcc_astep, movsf_internal_astep,
	movdfcc_astep, movdf_internal_astep, movtfcc_astep,
	movtf_internal_astep, cmovdi_internal_astep, cmovsi_internal_astep):
	Delete.
	(movqi_internal, movhi_internal, movsi_internal, movdi_internal,
	movsf_internal, movdf_internal, movtf_internal, cmovdi_internal,
	cmovsi_internal): Delete ! TARGET_A_STEP check.

2001-01-16  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* gcc.texi (Bug Lists): Do not mention newsgroups nor the
	possibility to report bugs via postal mail. Change a URL and
	merge in a nearly duplicate statement...
	(Bug Reporting): ...from here.
	(Service): Refer to the Bug Reporting section instead of
	duplicating an URL.
	(Contributing): Remove trivial explanations concerning snapshots.

2001-01-16  Alan Modra <alan@linuxcare.com.au>

	* cppmain.c (general_init): Don't use ANSI prototype.

2001-01-16  Tom Tromey  <tromey@redhat.com>

	* gcc.c (cpp_options): Added `*' to specs for -MF, -MQ, and -MT.

2001-01-16  Richard Henderson  <rth@redhat.com>

	* config/i386/i386.h: Fix comment typo.
	* config/i386/i386.md (shift+compare pattern names): s/cmpno/cmp/
	(ashr+compare patterns): Match CCGOCmode not CCNOmode.

2001-01-16  Phil Edwards  <pme@sources.redhat.com>

	* gcc.c:  Revert previous -fsyntax-only-related change; move
	  to cp/g++spec.c.

2001-01-16  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.c (fcmov_comparison_operator): Only initialize
	inmode after checking GET_CODE (op).

2001-01-16  Richard Henderson  <rth@redhat.com>

	* flow.c (struct propagate_block_info): Add mem_set_list_len.
	(MAX_MEM_SET_LIST_LEN): New.
	(propagate_one_insn): Update mem_set_list_len.
	(invalidate_mems_from_autoinc): Likewise.
	(invalidate_mems_from_set): Likewise.
	(mark_used_regs): Likewise.
	(init_propagate_block_info): Likewise.  Stop collecting memories
	when we reach MAX_MEM_SET_LIST_LEN.
	(mark_set_1): Likewise.

2001-01-16  Richard Henderson  <rth@redhat.com>

	* unroll.c (precondition_loop_p): Fail if no iteration
	variable found.

2001-01-16  Phil Edwards  <pme@sources.redhat.com>

	* gcc.c:  When -fsyntax-only is given, do not complain about
	  unused libraries.

2001-01-15  Richard Henderson  <rth@redhat.com>

	* config/i386/i386.c (asm_output_function_prefix): Remove.
	(ix86_asm_file_end): New.
	(load_pic_register): Generate pic_label_name into a
	staticly allocated buffer.
	* config/i386/i386-protos.h: Update.
	* config/i386/i386.h (ASM_OUTPUT_FUNCTION_PREFIX): Remove.
	(ASM_FILE_END): New.
	* config/i386/i386afe.h: New file.
	* config.gcc (i?86-*-elf) [tm_file]: Use it.
	(i?86-*-{freebsd,linux*,moss*}): Likewise.
	* config/elfos.h (ASM_FILE_END): Undef before redefinition.
	* config/i386/cygwin.h (ASM_FILE_END): Likewise.
	* config/i386/osfrose.h (ASM_FILE_END): Invoke ix86_asm_file_end.
	* config/i386/sco5.h (ASM_FILE_END): Likewise.
	* config/i386/winnt.c (i386_pe_asm_file_end): Likewise.

2001-01-15  Joseph S. Myers  <jsm28@cam.ac.uk>

	* Makefile.in (install-man): Remove explicit dependency on
	$(srcdir)/gcc.1.

	* configure.in, configure: Revert previous patch requiring perl
	5.6.0.

2001-01-12  Aldy Hernandez  <aldyh@redhat.com>

	* toplev.c (flag_guess_branch_prob): New.
	(f_options): Add guess-branch-probability option.
	(rest_of_decl_compilation): Only estimate branch probability if
	flag set.
	(main): set flag_guess_branch_prob.

	* flags.h (flag_guess_branch_prob): New.

2001-01-15  DJ Delorie  <dj@redhat.com>

	* gcc.texi (Makefile): Add documentation for Makefile targets.

2001-01-15  Philip Blundell  <philb@gnu.org>

	* config/arm/arm.c (arm_finalize_pic): New arg "prologue".
	(is_pic): Delete.
	* config/arm/arm-protos.h (arm_finalize_pic): Update prototype.
	(is_pic): Delete declaration.
	* config/arm/arm.h (FINALIZE_PIC): Update call to arm_finalize_pic.
	(OUTPUT_INT_ADDR_CONST): Remove special handling of PIC address.
	* config/arm/arm.md (builtin_setjmp_receiver): New.

2001-01-15  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (use_return_insn): Don't try to determine the function type
	until after reload has completed.
	(arm_output_epilogue): Don't adjust the sp value recovered from the
	stack.
	(emit_multi_reg_push): Don't record dwarf information for the pc.
	* arm.md (eh_epilogue): The function type may have changed, so it
	needs to be recalculated.
	* arm/netbsd.h (DWARF2_UNWIND_INFO): Delete.  Can now use dwarf2
	unwind tables on arm/netbsd.

2001-01-15  Richard Earnshaw  <rearnsha@arm.com>

	* arm.md (cbranchsi4): Correct calculation of branch ranges.
	(negated_cbranchsi4): Likewise.

2001-01-15  Richard Earnshaw  <rearnsha@arm.com>

	* config/arm/semi.h (SUBTARGET_EXTRA_SPECS): Define.
	(SUBTARGET_EXTRA_ASM_SPEC): Define to empty string.
	(ASM_SPEC): Call subtarget_extra_asm_spec.  Don't
	pass -mapcs-* options to assembler.
	* config/arm/elf.h (SUBTARGET_EXTRA_SPECS): Define.
	(SUBTARGET_EXTRA_ASM_SPEC): Define to empty string.
	(ASM_SPEC): Call subtarget_extra_asm_spec.

2001-01-15  Andreas Jaeger  <aj@suse.de>

	* config/i386/i386.c (ix86_init_builtins): Make i size_t to remove
	warnings.
	(ix86_expand_builtin): Likewise.

	* gencodes.c (output_predicate_decls): Make i size_t to avoid
	warning about comparison between signed and unsigned.

2001-01-14  Geoffrey Keating  <geoffk@redhat.com>

	* expr.c (do_jump): Treat VOIDmode CONST_DOUBLEs like CONST_INTs.

2001-01-14  Ralf Baechle <ralf@gnu.org>

	* config/mips/linux.h (SUBTARGET_CPP_SPEC): Default ABI is 32; change
	SUBTARGET_CPP_SPEC apropriatly.

2001-01-12  Mark Mitchell  <mark@codesourcery.com>

	* varasm.c (make_decl_rtl): Fix typo in last change.

2001-01-14  Jeffrey Oldham  <oldham@codesourcery.com>

	* defaults.h (SUPPORTS_INIT_PRIORITY): New macro to indicate the
	linker supports the init_priority C++ attribute.
	* tm.texi (SUPPORTS_INIT_PRIORITY): Documentation for new macro.
	* config/mips/iris6.h (SUPPORTS_INIT_PRIORITY): Indicate Irix
	linker does not support init_priority C++ attribute.

Sun Jan 14 22:31:30 2001  J"orn Rennecke <amylaar@redhat.com>

	* Makefile.in (libgcc1-test.o): Depends on stmp-int-hdrs.

2001-01-14  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-parse.in (finish_parse): Add comment about cpp_destroy.
	* cp/lex.c (finish_parse): Similarly.
	* cppinit.c (cpp_cleanup): Rename cpp_destroy for clarity.
	Return the number of errors encountered.
	* cpplib.h (cpp_cleanup): Rename cpp_destroy, return int.
	* cppmain.c (main): Don't call cpp_destroy.

2001-01-14  Joseph S. Myers  <jsm28@cam.ac.uk>

	* configure.in: Require at least perl 5.6.0 to regenerate
	manpages.
	* configure: Regenerate.

2001-01-14  Richard Henderson  <rth@redhat.com>

	* genrecog.c (DT_veclen_ge): New.
	(add_to_sequence) [MATCH_PARALLEL]: Generate one.
	(maybe_both_true_2): Simplify DT_veclen vs DT_veclen_ge.
	(nodes_identical_1): Handle DT_veclen_ge.
	(write_cond, debug_decision_2): Likewise.

2001-01-14  Richard Earnshaw  <rearnsha@arm.com>

	* arm.md (ldmsi_postinc, ldmsi, stmsi_postinc, smsi): Delete.  Replace
	with ...
	(ldmsi_postinc[432], ldmsi[432], stmsi_postinc[432], stmsi[432]): New.

2001-01-14  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppmain.c (do_preprocessing): New function; most of the old
	main.
	(main): Call it to do most of the work.
	(cb): Move from global scope to set_callbacks ().
	(setup_callbacks): Get the callback pointer.
	(general_init, printer_init): Clean up code and comments.

2001-01-14  Richard Earnshaw  <rearnsha@arm.com>

	* config/arm/semi.h (ASM_SPEC): Pass -k to the assembler when
	compiling PIC.

2001-01-14  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.c (get_shift_alg): Update comments.

Sun Jan 14 06:20:49 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* ggc-page.c (alloc_annon): Call perror and correctly call exit.
	(alloc_page, ggc_alloc): Add casts to remove warnings.

2001-01-14  Geoffrey Keating  <geoffk@redhat.com>

	* combine.c (simplify_comparison): Don't change `code' when
	can't reverse comparison.

2001-01-14  Richard Henderson  <rth@redhat.com>

	* rtlanal.c (computed_jump_p_1): Rename from jmp_uses_reg_or_mem;
	update all call sites.  Return true for all non-label constants.

Sun Jan 14 10:09:48 MET 2001  Jan hubicka  <jh@suse.cz>

	* i386.c (ix86_expand_compare): Add bypass_test and second_test
	parameters.
	(ix86_expand_branch): Update.
	(ix86_expand_setcc): Update to handle multiple test conditions.
	(expand_int_movcc): Likewise.
	(expand_fp_movcc): Likewise.
	* i386-protos.h (ix86_expand_compare): New.
	* i386.md (andqi_?_slp, orqi_?_slp): New.
	(conditional trap expander): Update call to ix86_expand_compare.

2001-01-14  Richard Henderson  <rth@redhat.com>

	* config/vax/vax.md: Use nonimmediate_operand instead of
	general_operand in destinations.

	* config/vax/vax.md (indirect_jump): Use register_operand.

	* config/vax/vax.h (RETURN_POPS_ARGS): Max at 255 arguments.
	* config/vax/vax.md (call_pop): Turn into an expander.
	(call_value_pop): Likewise.
	(call, call_value): New.

2001-01-14  Andreas Jaeger  <aj@suse.de>

	* config/i386/i386.c (ix86_split_fp_branch): Remove unused
	variables.
	(ix86_fp_compare_mode): Add unused attribute.
	(ix86_expand_fp_movcc): Remove unused variable.
	(ix86_expand_builtin): Make fcode unsigned.

	* expr.c (MOVE_BY_PIECES_P): Cast MOVE_RATIO to unsigned.
	(expand_expr): Add cast to avoid signed warning.
	(store_field): Likewise.
	(store_constructor_field): Likewise.
	(store_constructor): Likewise.
	(store_expr): Likewise.
	(clear_storage): Likewise.
	(emit_group_store): Likewise.
	(emit_group_load): Likewise.

2001-01-13  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c: Move format checking code to ...
	* c-format.c: ... here.  New file.  Reorder some functions and
	declarations.
	(decl_handle_format_attribute, decl_handle_format_arg_attribute):
	New functions.
	* c-common.h (decl_handle_format_attribute,
	decl_handle_format_arg_attribute): Declare.
	* Makefile.in (C_AND_OBJC_OBJS): Add c-format.o.
	(c-common.o): Adjust dependencies.
	(c-format.o): New list of dependencies.

2001-01-13  Jakub Jelinek  <jakub@redhat.com>

	* unroll.c (loop_iterations): If we cannot prove iteration variable
	is set once in each iteration, punt.

Sun Jan 14 00:23:15 2001  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr.md ("strlenhi"): Remove clobber of input address.
	(*strlenhi): Remove clobber (which was buggy) of output address.

2001-01-13  Joseph S. Myers  <jsm28@cam.ac.uk>

	* Makefile.in (generated-manpages): Add gcc.1
	($(srcdir)/gcc.1): New target.
	(maintainer-clean): Delete $(srcdir)/gcc.1.
	* gcc.texi: Add macros @gccoptlist and @gol.
	* invoke.texi: Include option summary in manpage.  Mark up option
	summary with @gccoptlist and @gol.  Use @r in one place where
	appropriate.
	* texinfo.tex: Update to version 2000-12-11.07 from ftp.gnu.org.
	* gcc.1: Generate from invoke.texi.

2001-01-13  Richard Henderson  <rth@redhat.com>

	* ggc-page.c (USING_MALLOC_PAGE_GROUPS): New; set if not using mmap.
	(struct page_entry): Add group member.
	(struct page_group): New.
	(struct globals): Add page_groups member.
	(alloc_anon): Only define for using mmap; remove valloc call.
	(page_group_index): New.
	(set_page_group_in_use): New.
	(clear_page_group_in_use): New.
	(alloc_page): Implement USING_MALLOC_PAGE_GROUPS.
	(free_page, release_pages): Likewise.
	* configure.in (with-gc): Default to ggc-page always.

2001-01-13  Alexandre Oliva  <aoliva@redhat.com>

	* reload1.c (replace_pseudos_in_call_usage): Use
	reg_equiv_constant and reg_equiv_address, and don't try
	regno_reg_rtx first.

2001-01-13  Richard Henderson  <rth@redhat.com>

	* ggc-page.c (alloc_page): Round up allocation size to one page.
	Set e->order on extra pages.

2001-01-13  Richard Henderson  <rth@redhat.com>

	* genrecog.c (nodes_identical): Expand commentary.
	(write_switch): Watch out for identical nodes.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppfiles.c (_cpp_fake_include): New function.
	* cpphash.h (_cpp_fake_include): New.
	* cpplib.c (do_line): Call _cpp_fake_include when entering
	header files in preprocessed input.
	* cppmain.c (cb_pragma_implementation): Remove handling.
	(setup_callbacks): Don't register pragmas.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

	* extend.texi: Udate for CPP.

2001-01-13  Andreas Jaeger  <aj@suse.de>

	* reload1.c: Add prototype for replace_pseudos_in_call_usage.

	* regmove.c: Add prototype for replace_in_call_usage.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpplib.h (cpp_pool, mi_state, mi_ind, struct cpp_macro,
	struct cpp_chunk, struct htab, struct toklist,
	struct cpp_context, CPP_STACK_MAX, struct lexer_state,
	struct spec_nodes, struct cpp_reader, CPP_OPTION, CPP_BUFFER,
	CPP_BUF_LINE, CPP_BUF_COL, CPP_BUF_COLUMN, U, ustrcmp, ustrncmp,
	ustrlen, uxstrdup, ustrchr, ufputs): Move to cpphash.h.
	(struct macro_args): Delete.
	* cpphash.h: See above.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppmain.c (struct printer): Remove no_line_dirs.
	(options, cb): New.
	(main, setup_callbacks, scan_buffer, printer_init, cb_define)
	: Use options rather than CPP_OPTION.
	(setup_callbacks): Use cb rather than pfile->cb.
	(main): No need to check for a buffer.  Use cpp_errors.
	(printer_init): Don't set no_line_dirs.
	(maybe_print_line): Use options not no_line_dirs.
	(cb_file_change): Don't call print_line if -P.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lex.c (init_c_lex): Use cpp_get_callbacks to set
	callbacks.
	* c-parse.in (finish_parse): Use cpp_errors.
	(__yylex): Use return value of cpp_pop_buffer.
	* cp/lex.c (finish_parse): Use cpp_errors.
	* cp/spew.c (read_token): Use return value of cpp_pop_buffer.

Sat Jan 13 16:57:40 2001  Denis Chertykov  <denisc@overta.ru>

	* README.AVR: URLs corrected.

Sat Jan 13 07:30:02 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* c-decl.c (start_function): Don't warn if old prototype is builtin
	that's not in C's namespace.
	* libgcc2.c (_varargs): Update definition of __builtin_saveregs.
	(_bb): Add prototype for ctime.
	* config/alpha/osf.h (TRANSFER_FROM_TRAMPOLINE): Add missing protos.

Sat Jan 13 09:53:32 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_fp_comparison_arithmetics_cost,
	ix86_fp_comparison_fcomi_cost, ix86_fp_comparison_sahf_cost,
	ix86_fp_comparison_cost): New functions.
	(ix86_expand_fp_compare): Use the costs to choose best bethod; add
	two new parameters SECOND_TEST and BYPASS_TEST; allow generating
	two-branch sequences; make static.
	(ix86_use_fcomi_compare): Do decision according to the costs.
	(split_fp_branch): New.
	* i386.md (compare-and-branch patterns): Use split_fp_branch.
	* i386-protos.h (ix86_expand_fp_compare): Remove
	(ix86_split_fp_branch): Declare.

	* i386.h (PREDICATE_CODES): Update codes from fcmov_comparison_operand
	and ix86_comparison_operator.

	* i386.c (ix86_prepare_fp_compare_args): Try to rearange the comparison
	to make it cheaper.

	* i386.c (put_condition_code): Output properly the unordered/ordered
	compares in fp case.
	(ix86_expand_fp_movcc): Use ix86_expand_compare infrastructure.

	* tm.texi (REVERSE_CONDITION): Document.
	* i386.c (ix86_fp_compare_mode): Simplify; return always CCFPmode
	in -ffast-math mode.
	* i386.h (REVERSE_CONDITION, REVERSIBLE_CC_MODE): New macro.

2001-01-13  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.c (sh_expand_epilogue): Use PR explicitly.

	* config/sh/sh.c (sh_expand_prologue): Let the second toggle_sz be
	optimized away.

	* config/sh/sh.c (mova_p): Fix test for mova_const.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

	* fix-header.c (read_scan_file): Use cpp_get_callbacks and
	cpp_get_options rather than dereferencing pfile and using
	CPP_OPTION.
	* scan-decls.c (scan_decls): Use return value of
	cpp_pop_buffer rather than CPP_BUFFER.

2001-01-13  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (cpp_handle_option): help_only is now part of the
	cpp_options structure.
	* cpplib.c (cpp_errors, cpp_get_options, cpp_get_callbacks,
	cpp_set_callbacks): New functions.
	* cpplib.h (cpp_callbacks): Break out as a named structure.
	(cpp_options): Move help_only here from cpp_reader.
	(CPP_FATAL_ERRORS): Update to use cpp_errors.
	(cpp_errors, cpp_get_options, cpp_get_callbacks,
	cpp_set_callbacks): New prototypes.
	* cppmain.c (main): Update for help_only.

2001-01-13  Joseph S. Myers  <jsm28@cam.ac.uk>

	* Makefile.in (info, maintainer-clean, install-info, uninstall):
	Also build and remove and install and uninstall c-tree.info and
	cppinternals.info.
	($(srcdir)/gcc.info): Add dependency on contrib.texi.
	($(srcdir)/cppinternals.info): New target.
	* c-tree.texi: Change file name used when makeinfo used without -o
	from ir.info to c-tree.info.  Add info directory entry.
	* cppinternals.texi: Add info directory entry.
	* .cvsignore: Update.

2001-01-12  Jakub Jelinek  <jakub@redhat.com>

	* c-typeck.c (store_init_value): Don't require constant initializer
	elements with -pedantic -std=c99.
	(digest_init): Change error about non-constant initializer elements
	into pedwarn.
	(constructor_range_end): Remove.
	(constructor_incremental, designator_depth,
	designator_errorneous): New variables.
	(struct constructor_stack): Remove range_end, add incremental.
	(struct constructor_range_stack, constructor_range_stack): New.
	(struct initializer_stack): Add constructor_range_stack.
	(finish_init): Set it.
	(start_init): Likewise.  require_constant_elements for non-static
	trees only if not flag_isoc99.
	(really_start_incremental_init): Remove constructor_range_end, add
	constructor_incremental.
	(pop_init_level): Likewise.
	(push_init_level): Likewise.  If implicit and the subobject had some
	value set already, preinitialize the level with it.
	Warn about missing braces only if not pushing due to designators.
	(set_designator, push_range_stack): New functions.
	(set_init_label): Use them.
	(set_init_index): Likewise.  Remove constructor_range_end.
	Error if designator index is outside of array bounds.
	(add_pending_init): Compare values of purpose index trees, not the
	trees themselves.  Allow overwriting of already initialized element.
	Issue a warning if it had side-effects.
	(set_nonincremental_init, set_nonincremental_init_from_string): New
	functions.
	(pending_init_member): Rename to...
	(find_init_member): ...this function.  Call set_nonincremental_init
	if necessary.  Compare values of purpose index trees, not the trees
	themselves.  Return the actual value, not just non-zero if something
	is found.
	(output_init_element): Remove checks for duplicates.
	If field has zero size, only check the initializer for correctness.
	Call set_nonincremental_init if necessary.  Push RECORD/ARRAY into AVL
	if constructor_incremental is zero.  Change error about initializers
	not computable at load time into pedwarn.
	(output_pending_init_elements): Compare bit positions, not
	FIELD_DECLs to take into account zero-sized fields.
	(process_init_element): Use constructor_range_stack to fill all
	ranges in the designator lists from current level up.
	* extend.texi: Update documentation for labeled elements.

2001-01-12  Alexandre Oliva  <aoliva@redhat.com>

	* calls.c (emit_library_call_value_1): Add USEs and CLOBBERs
	to function usage for arguments passed by reference.  Optimize
	callee-copied arguments.
	* regmove.c (replace_in_call_usage): New function.
	(fixup_match_1): Call it.
	* cse.c (cse_insn): Canonicalize registers in function usage.
	* reload1.c (replace_pseudos_in_call_usage): New function.
	(reload): Call it.

	* Makefile.in: Reverted yesterday's wrong patch.  Installed the
	right version.

2001-01-12  Jakub Jelinek  <jakub@redhat.com>

	* config/alpha/alpha.c (alpha_expand_block_move): GET_MODE of tmp,
	not XEXP (tmp, 0).

2001-01-12  DJ Delorie  <dj@redhat.com>

	* Makefile.in (bootstrap): rename stages to be mnemonic.  Add
	restageN, unstageN, bubblestrap, quickstrap, and cleanstrap
	targets.

2001-01-12  Joseph S. Myers  <jsm28@cam.ac.uk>

	* cpp.texi, extend.texi, gcc.texi, install.texi, invoke.texi,
	tm.texi: Consistently refer to ISO C instead of ANSI C.  Refer to
	-std options alongside references to -ansi.  Update some
	documentation for C99.
	* cpp.1: Regenerate.

2001-01-12  Andreas Jaeger  <aj@suse.de>

	* haifa-sched.c (restore_line_notes): Remove argument block B
	since it's unused.
	* sched-ebb.c (schedule_ebb): Change caller.
	* sched-rgn.c (schedule_region): Likewise.
	* sched-int.h (restore_line_notes): Adjust prototype.

	* loop.h: Remove wrong declaration of doloop_condition_get.

2001-01-12  Phil Edwards  <pme@sources.redhat.com>

	* extend.texi:  Move C++-extension-related node from the C section
	  into the C++ section.

2001-01-12  Joseph S. Myers  <jsm28@cam.ac.uk>

	* extend.texi: Refer to an array of pointers to functions instead
	of one of functions.

Fri Jan 12 12:08:12 MET 2001  Andreas Jaeger  <aj@suse.de>
			      Jan Hubicka  <jh@suse.cz>

	* combine.c (reversed_comparison): Fix typo in last patch.
	Check X for NULL.
	(combine_reversed_comparison_code): Make static to follow
	prototype declaration.

2001-01-12  Phil Edwards  <pme@sources.redhat.com>

	* install.texi:  Remove misplaced duplicate entry.

2001-01-11  Ulrich Drepper  <drepper@redhat.com>

	* config/float-i386.h: Define FLT_EVAL_METHOD and DECIMAL_DIG for C99.

Thu Jan 11 17:06:30 EST 2001  John Wehle  (john@feith.com)

	* final.c: (leaf_function_p): Fix typo.

2001-01-11  Zack Weinberg  <zack@wolery.stanford.edu>

	* aclocal.m4 (AC_FUNC_MMAP_ANYWHERE): Completely rewritten.
	Now defines HAVE_MMAP_DEV_ZERO and/or HAVE_MMAP_ANON depending
	which you have.
	(AC_FUNC_MMAP_FILE): Don't AC_REQUIRE AC_FUNC_MMAP_ANYWHERE.
	* configure.in: Set GGC to ggc-page if any of mmap_dev_zero,
	mmap_anon, and valloc is available.
	* ggc-page.c: Restructure ifdef logic to match new autoconf
	spec.  Don't throw away the test page in init_ggc.

	* configure, config.in: Regenerate.

2001-01-12  Michael Hayes  <mhayes@redhat.com>

	* loop.h (total_biv_increment): Constify iv_class pointer.
	(struct induction): Replace `mem_mode' with `mem' rtx.
	* unroll.c (total_biv_increment): Constify iv_class pointer.
	* loop.c (loop_giv_reduce_benefit): Derive mem mode from mem rtx.
	(find_mem_givs, combine_givs_p): Likewise.
	(debug_ivs, debug_iv_class, loop_ivs_dump, loop_iv_class_dump): New.

2001-01-10  Thomas Pfaff <tpfaff@gmx.net>

	* gthr-win32.h (__gthread_objc_thread_get_data): Save and restore Win32
	LastError.
	(__gthread_getspecific): Ditto.

Fri Jan 12 00:04:00 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_comparison_operator, fcmov_comparison_operator,
	put_condition_code): Convert fp comparison codes to integer
	before handling.
	(ix86_expand_fp_compare): Postnote the fp comparison code converison
	to final.

	* i386.c (unsigned_comparison, no_comparison_operator): Kill.
	* i386-protos.h (no_comparison_operator): Kill.

	* i386.c (ix86_expand_fp_compare): Fix ordered/unordered confussion.

	* combine.c (REVERSIBLE_CC_MODE): Remove.
	(reversible_comparison_p): Remove.
	(combine_reversed_comparison_code): New.
	(reversed_comparison): New.
	(combine_simplify_rtx): Use
	combine_reversed_comparison_code/reversed_comparison instead
	of reversible_comparison_p.
	(simplify_if_then_else): Likewise.
	(simplify_set): Likewise.
	(simplify_logical): Likewise.
	(if_then_else_cond): Likewise.
	(known_cond): Likewise.
	(simplify_comparison): Likewise.

2001-01-11  Alan Lehotsky  <lehotsky@tiac.net>

	* builtins.c (std_expand_builtin_va_start): Handle varargs when
	sizeof (int) is larger than sizeof(__word__).

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (do_includes): Fix typo.

2001-01-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* config/m68hc11/m68hc11.md (cmphi_1): Make sure reloading
	in S_REGS does not occur because not all sources are possible
	when a S_REGS is a destination (sometimes needs a clobber).
	(movqi_const0, zero_extendhisi2, zero_extendqisi2): Likewise.
	(zero_extendhidi2, extendqisi2, extendqihi2, extendhisi2): Likewise.
	(anddi3, iordi3, xordi3, negqi2, one_cmplhi2, one_cmplqi2: Likewise.
	(ashldi3_const32, ashldi3_const1, ashlsi3_const16): Likewise.
	(ashlsi3_const1, ashlhi3_2, ashlqi3_const1, ashrhi3): Likewise.
	(ashrqi3_const1, lshrdi3_const32, lshrdi3_const63): Likewise.
	(lshrdi_const1, lshrsi3_const16): Likewise.
	(*addhi3, lshrsi3_const1, lshrqi3_const1): Likewise.
	(*movhi_68hc12, *movqi_68hc12): Likewise.
	(movstrictqi): Make sure reloading in D_REGS as a destination
	does not happen.

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppspec.c (DEFAULT_WORD_SWITCH_TAKES_ARG): Add -MQ.

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (cpp_start_read): If -fpreprocessed, ignore
	-D, -U and -A, and don't initialize the builtins.
	(do_includes): Error if -include or -imacros with -fpreprocessed.
	* cppmain.c (cb_define, cb_undef): Unconditionally process
	the callback.
	* tradcpp.c (main): Fix typo.

2000-01-11  Mark Elbrecht  <snowball3@bigfoot.com>

	 * cppfiles.c (cpp_included, find_include_file, _cpp_execute_include)
	   (read_name_map): Use IS_ABSOLUTE_PATH.
	 * tradcpp.c (get_filename): Likewise.

2001-01-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* config/m68hc11/m68hc11.md (*adcq, *subcq): Fix operand numbers.
	(*ashlsi3_const16_zexthi, *ashlsi3_const1): Likewise.
	(*lshrsi3_const, *lshrsi3_const1, *lshrsi3_const16): Likewise.
	(*ashrsi3, *ashrsi3_const, *ashlsi3, *ashlsi3_const): Likewise.
	(*ashlsi3_const1, *lshrsi3, *ashlsi3_const16): Likewise.
	(cmphi_z_used): Don't use '@' for the output.
	(tstqi_z_used): Likewise.
	(cmpqi_z_used): Likewise.
	(one_cmplsi2): Likewise.

2001-01-11  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.c (barrier_align): Recognize branch around far
	branch and redundant insn.

2001-01-11  Neil Booth  <neil@daikokuya.demon.co.uk>

	* invoke.texi: Restore documentation of the drivers' switches -MD
	and -MMD.

2001-01-11  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.h (LABEL_ALIGN): Use UNSPECV_ALIGN instead of 1.

	* Makefile.in (check-gcc//%, check-g++//%, check-g77//%,
	check-objc//%): Support parallel testing of multilibs.
	(TESTSUITEDIR): Set to testsuite by default, but override for
	parallel testing.
	(check-gcc, check-g++, check-g77, check-objc): Enter
	$(TESTSUITEDIR).

2001-01-11  Bernd Schmidt  <bernds@redhat.com>

	* alias.c (throughout): Use REGNO, rather than ORIGINAL_REGNO.
	* sched-deps.c (deps_may_trap_p): Likewise.
	* basic-block.h: Remove a comment.
	* flow.c (PROP_POSTRELOAD): Remove.
	(update_life_info): Don't add it to prop_flags.
	(mark_set_1): Lose the code that was enabled by it.

2001-01-11  Michael Hayes  <mhayes@redhat.com>

	* flow.c (flow_call_edges_add): New.
	* basic_block.h (flow_call_edges_add): New.

2001-01-11  J"orn Rennecke <amylaar@redhat.com>

	* reload1.c (move2add_note_store): Update reg_set_luid even if
	base reg remains the same.

2001-01-10  Nick Clifton  <nickc@redhat.com>

	* config/d30v/d30v.c (d30v_init_machine_status): Initialise
	machine_function structure to zero.
	Add prototypes for machine_status functions.

2001-01-10  Mark Mitchell  <mark@codesourcery.com>

	* c-common.h (CTI_VOID_LIST): Remove.
	(void_list_node): Likewise.
	* tree.h (TI_VOID_LIST_NODE): New enumeral.
	(void_list_node): New macro.
	* config/arm/arm.c (arm_init_builtins): Use void_list_node.
	* config/i386/i386.c (ix86_init_builtins): Likewise.
	* config/ia64a/ia64.c (ia64_init_builtins): Likewise.

2001-01-10  Neil Booth  <neil@daikokuya.demon.co.uk>

	* Makefile.in (tradcpp0): Depend on mkdeps.h.  Link mkdeps.o
	* cppinit.c (cpp_start_read): Update comment, remove unneeded
	if statement.
	* tradcpp.c: Include mkdeps.h.
	(deps, print_deps_phony_targets, deps_append, output_deps,
	init_dependency_output, output_deps): New.
	(deps_buffer, deps_allocated_size, deps_size, deps_column,
	deps_output): Delete.
	(print_deps_missing_files): Rename deps_missing_files.
	(inhibit_output): Make global.
	(main): Delete inhibit_output, deps_stream, deps_target.
	Use mkdeps functionality in the same way as cpplib.  Remove
	-g3 handling.  Handle -MF, -MP, -MQ, -MT.  Update handling of
	-M and -MM.  Remove old handling of deps via deps_out, and
	old reading of environment variables.
	(get_filename): Update to use deps_add_dep.

2001-01-10  Mark Mitchell  <mark@codesourcery.com>

	* output.h (make_function_rtl): Remove prototype.
	(make_decl_rtl): Likewise.
	* varasm.c (make_function_rtl): Remove.
	(make_decl_rtl): Determine top-levelness from DECL_CONTEXT, rather
	than from a third parameter.
	* tree.h (make_decl_rtl): Remove last parameter.
	* c-decl.c (builtin_function): Remove last argument in call to
	make_decl_rtl; use make_function_rtl instead of make_decl_rtl.
	(start_function): Likewise.
	* except.c (call_get_eh_context): Likewise.
	* expr.c (emit_block_move): Likewise.
	(clear_storage): Likewise.
	* profile.c (output_func_start_profiler): Likewise.
	* toplev.c (rest_of_decl_compilation): Likewise.
	* objc/objc-act.c (create_builtin_decl): Likewise.
	(synth_module_prologue): Likewise.
	(generate_static_reference): Likewise.
	(build_selector_reference_decl): Likewise.
	(build_class_reference_decl): Likewise.
	(build_objc_string_decl): Likewise.
	(build_protocol_reference): Likewise.

2001-01-10  Richard Henderson  <rth@redhat.com>

	* hwint.h: Revert yesterday's change.

2001-01-10  Nick Clifton  <nickc@redhat.com>

	* function.h (save_machine_status): Delete.
	(restore_machine_status): Delete.
	Amend comment describing {init|mark|free}_machine_status.

	* function.c (save_machine_status): Delete.
	(restore_machine_status): Delete.
	Amend comment describing {init|mark|free}_machine_status.
	(push_function_context_to): Remove invocation of
	save_machine_status.
	(pop_function_context_from): Remove invocation of
	restore_machine_status.

	* emit-rtl.c (init_emit_once): Amend comment describing
	{init|mark|free}_machine_status.

	* tm.texi (Per-Function Data): New node.  Describe the
	INIT_EXPANDERS macro and the {init|mark|free}_machine_status
	function pointers.

2001-01-10  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (OPT_g): Remove.
	(cpp_handle_option): Update for removed -g3.
	(print_help): Update.
	* cpplib.h (struct cpp_options): Remove debug_output.
	* cppmain.c (setup_callbacks, cb_define): Update.
	* gcc.c (cpp_options): Translate -g3 to -dD.

2001-01-10  Aldy Hernandez  <aldyh@redhat.com>

	* config/i960/i960.md: Change modifier to + on the zero_extract
	pattern after the (rotate -2 reg) canonicalization pattern.

2001-01-10  Richard Henderson  <rth@redhat.com>

	* config/alpha/alpha.c (alpha_free_machine_status): New.
	(override_options): Install it.
	(alpha_mark_machine_status): Verify machine non-null.
	* config/i386/i386.c (ix86_free_machine_status): New.
	(override_options): Install it.
	(ix86_init_machine_status): Use xcalloc.
	(ix86_mark_machine_status): Verify machine non-null.
	* config/ia64/ia64.c (ia64_free_machine_status): New.
	(ia64_override_options): Install it.
	(ia64_mark_machine_status): Verify machine non-null.

Wed Jan 10 11:34:39 2001  Jeffrey A Law  (law@cygnus.com)

	* function.c (instantiate_virtual_regs): Instantiate virtual
	registers found in CALL_INSN_FUNCTION_USAGE.

2001-01-10  Joseph S. Myers  <jsm28@cam.ac.uk>

	* i386.h (CPP_CPU_SPEC): Allow for -std=c* and -std=i* as
	equivalent to -ansi in disabling -Di386.

Wed Jan 10 16:38:31 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_fp_compare_code_to_integer, ix86_fp_comparison_codes):
	new functions.
	(ix86_expand_fp_compare): Make trivial use of new infrastructure.

2001-01-10  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (arm_init_builtins): Temporarily disable xscale builtins.

2001-01-10  Joseph S. Myers  <jsm28@cam.ac.uk>

	* invoke.texi: Document that -fcond-mismatch isn't supported for
	C++.

2001-01-10  Joseph S. Myers  <jsm28@cam.ac.uk>

	* gcc.texi: Define macro gcctabopt.
	* invoke.texi: Add manpage sections BUGS and AUTHOR.  Use
	@command, @env and @option in some places where appropriate.  Use
	@gcctabopt where appropriate.  Put URLs and email addresses inside
	@w.

2001-01-10  Nathan Sidwell  <nathan@codesourcery.com>

	* gcc.c (cpp_options): Set MD file name from output
	filename, if specified.
	(suffix_subst): New static variable.
	(do_spec): Clear it.
	(do_spec_1, case '.'): Handle new `%.suffix' spec.
	Clear it.
	(give_switch): Handle suffix_subst.

2001-01-10  Phil Edwards  <pme@sources.redhat.com>

	* invoke.texi:  Fix another typo.

2001-01-10  Phil Edwards  <pme@sources.redhat.com>

	* invoke.texi:  Fix typo.

2001-01-10  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lang.c (lang_hooks): Update.
	(lang_decode_option): Remove.
	(lang_init_options): Rename c_init_options.
	* toplev.c (main): Use lang_hooks for lang_init_options
	and lang_decode_option.
	* toplev.h (lang_hooks): Add 2 new hooks.
	* tree.h: Remove lang_init_options and lang_decode_option.
	* cp/cp-tree.h (lang_decode_option): Rename cxx_decode_option.
	* cp/decl2.c: Similarly.
	* cp/lex.c (lang_init_options): Rename cxx_init_options.
	(lang_hooks): Update.
	* f/com.c (f_init, f_finish): Rename ffe_init, ffe_finish
	for consistency.
	(lang_init_options): Rename ffe_init_options.
	(lang_hooks): Update.
	(lang_decode_option): Remove.
	* java/lang.c (lang_init_options): Rename java_init_options.
	(lang_decode_option): Rename java_decode_option.
	(lang_hooks): Update.
	* objc/objc-act.c (lang_init_options): Rename objc_init_options.
	(lang_decode_option): Rename objc_decode_option.
	(lang_hooks): Update.

2001-01-09  Nick Clifton  <nickc@redhat.com>

	* config/d30v/d30v.c (d30v_eh_epilogue_sp_ofs): Delete.
	(d30v_return_addr_rtx): Delete.
	(d30v_expand_epilogue): Use eh_epilogue_sp_ofs field in the
	cfun->machine structure.
	(struct machine_function): Move to d30v.h
	(d30v_save_machine_status): Delete.
	(d30v_restore_machine_status): Delete.
	(d30v_init_machine_status): New Function.
	(d30v_mark_machine_status): New Function.
	(d30v_free_machine_status): New Function.
	(d30v_init_expanders): Use new functions.
	(d30v_return_addr): Use ra_rtx field in cfun->machine.
	(d30v_add_gc_roots): Remove d30v_eh_epilogue_sp_ofs and
	d30v_return_addr_rtx.

	* config/d30v/d30v.h (struct_machine): Move here.
	Add eh_epilogue_sp_ofs field.

	*config/d30v/d30v.md (epilogue): Initialise eh_epilogue_sp_ofs
	field in cfun->machine structure.

Tue Jan  9 21:34:57 2001  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa32-regs.h (CONDITIONAL_REGISTER_USAGE): When generating pic code,
	PIC_OFFSET_TABLE_REGNUM_SAVED is a call_used register.
	* pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

Tue Jan  9 21:25:19 2001  Jeffrey A Law  (law@cygnus.com)

	* objc/lang-options.h: Remove bogus reference to
	Java trademark.

2001-01-09  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.c (get_shift_alg): Use a struct shift_info to
	return the result.

2001-01-09  Alan Lehotsky  <lehotsky@tiac.net>

	* reload.c (find_reloads_address): Check for eliminable registers
		  when substituting a constant expression for a pseudo.

2001-01-09  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (enum format_type): Add format_type_error.
	(decode_format_type): New function.
	(decl_attributes): Use it.
	(format_kind_info): Adjust comment.

2001-01-09  David O'Brien  <obrien@BSDi.com>

	* config.gcc (*-*-gnu*, i[34567]86-*-elf*, i[34567]86-*-linux*libc1,
	i[34567]86-*-linux*, i[34567]86-*-moss*): Specify needed platform specific
	files in tm_file.
	* config/i386/gnu.h: Don't include required platform specific .h files,
	tm.h will do it instead.
	* config/i386/i386elf.h: Likewise.
	* config/i386/linux.h: Likewise.
	* config/i386/moss.h: Likewise.
	* config/mips/gnu.h: Likewise.

2001-01-09  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* config.gcc (powerpc-*-beos*): Include ${tm_file} and rs6000/aix.h.
	(rs6000-ibm-aix3.[01]*): Likewise.
	(rs6000-ibm-aix3.2.[456789]*, powerpc-ibm-aix3.2.[456789]*): Likewise.
	(rs6000-ibm-aix4.[12]*, powerpc-ibm-aix4.[12]*): Likewise.
	(rs6000-ibm-aix4.[3456789]*, powerpc-ibm-aix4.[3456789]*): Likewise.
	(rs6000-ibm-aix[56789].*, powerpc-ibm-aix[56789].*): Likewise.
	(powerpc-*-sysv*): Include {tm_file}. svr4.h and rs6000/sysv4.h.
	(powerpc-*-eabiaix*): Likewise.
	(powerpc-*-eabisim*): Likewise.
	(powerpc-*-elf*): Likewise.
	(powerpc-*-eabi*): Likewise.
	(powerpc-*-rtems*): Likewise.
	(powerpc-*-linux*libc1): Likewise.
	(powerpc-*-linux*): Likewise.
	(powerpc-wrs-vxworks*): Likewise.
	(powerpcle-wrs-vxworks*): Likewise.
	(powerpcle-*-sysv*): Likewise.
	(powerpcle-*-elf*): Likewise.
	(powerpcle-*-eabisim*): Likewise.
	(powerpcle-*-eabi*): Likewise.
	(powerpcle-*-solaris2*): Likewise.
	* config/rs6000/aix31.h: Delete includes.
	* config/rs6000/aix3newas.h: Likewise.
	* config/rs6000/aix41.h: Likewise.
	* config/rs6000/aix43.h: Likewise.
	* config/rs6000/beos.h: Likewise.
	* config/rs6000/rtems.h: Likewise.
	* config/rs6000/sysv4.h: Likewise.

2001-01-09  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.c (get_shift_alg): Remove an argument cpu.
	Change an argument mode of machine_mode to shift_mode of
	shift_mode.  Remove an extra error check.
	(emit_a_shift): Adopt to the new calling prototype of
	get_shift_alg.
	(function_prologue): Fix code for a monitor
	function.  Support H8/S.
	(function_epilogue): Do not output pop for a monitor function.

2001-01-09  Nick Clifton  <nickc@redhat.com>

	* config/rs6000/rs6000.c (rs6000_sysv_varargs_p): Delete.
	(setup_incoming_varargs): Use sysv_varargs_p field of the
	cfun->machine structure.
	(struct machine_function): Move to rs6000.h
	(rs6000_save_machine_status): Delete.
	(rs6000_restore_machine_status): Delete.
	(rs6000_init_machine_status): New Function.
	(rs6000_free_machine_status): New Function.
	(rs6000_init_expanders): Use new functions.

	* config/rs6000/rs6000.h (rs6000_sysv_varargs_p): Delete
	export.
	(struct machine_function): Move here.

	* config/rs6000/sysv4.h (RS6000_VARARGS_AREA): Use
	sysv_varargs_p field of the cfun->machine structure.

	* config/rs6000/rs6000-protos.h (rs6000_save_machine_status):
	Remove prototype.
	(rs6000_restore_machine_status): Remove prototype.

2001-01-09  Richard Henderson  <rth@redhat.com>

	* sched-int.h (struct deps): Add max_reg, reg_last_in_use; merge
	reg_last_uses, reg_last_sets, reg_last_clobbers into struct deps_reg.
	* sched-deps.c (sched_analyze_1): Update uses of struct deps.
	(sched_analyze_2, sched_analyze_insn): Likewise.
	(sched_analyze, init_deps): Likewise.
	(free_deps): Likewise.  Iterate with EXECUTE_IF_SET_IN_REG_SET.
	* sched-rgn.c (propagate_deps): Likewise.  Remove max_reg argument.
	(compute_block_backward_dependences): Update propagate_deps call.

2001-01-09  Mark Elbrecht  <snowball3@bigfoot.com>

	* gcc.c (process_command): Set switches[n_switches].ordering to 0.

2001-01-09  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (OPT_MD, OPT_MMD): Restore.
	(cpp_handle_option): Handle them.
	(cpp_post_options): Ensure one of -M or -MM is specified with
	any other -M? option.
	(init_dependency_output): Suppress output with -MG.

2001-01-09  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpp.texi: Update.
	* invoke.texi: Update.

2001-01-09  Bernd Schmidt  <bernds@redhat.com>

	* sh.md (reload_outsf): Generate recognizable patterns for
	TARGET_SH3E.

2001-01-09  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lang.c (lang_hooks): Update.
	(lang_init): Rename c_init.
	(lang_finish): Remove.
	* toplev.c (compile_file): Use lang_hooks for lang_init ()
	and lang_finish ().
	* toplev.h (lang_hooks): Add init () and finish ().
	* tree.h (lang_init, lang_finish): Remove.
	* cp/tree.h (lang_init, lang_finish): Remove.
	* cp/decl2.c (cxx_post_options, lang_hooks): Move to cp/lex.c.
	* cp/lex.c (cxx_init, cxx_finish, cxx_post_options,
	lang_hooks): New.
	(lang_init, lang_finish): Remove.
	* f/com.c (lang_init, lang_finish): Rename f_init, f_finish.
	(lang_hooks): Update.
	* java/lang.c (lang_init): Rename java_init.
	(lang_finish): Remove.
	(lang_hooks): Update.
	* objc/objc-act.c (lang_init): Rename objc_init.
	(lang_finish): Remove.
	(lang_hoooks): Update.

20001-01-09  Graham Stott  <grahams@redhat.com>

	* cppfiles.c (_cpp_execute_include): Move `len` initialisation
	after `ptr` is initialised.

2001-01-09  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.h (STATIC_CHAIN_REGNUM): Change from r13 to r3.
	(INITIALIZE_TRAMPOLINE): Adjust accordingly.
	* config/sh/sh.c (sh_expand_prologue): Use r1 as temporary for
	stack adjusts, instead of r3.

2001-01-09  Michael Hayes  <mhayes@redhat.com>

	* flow.c (flow_loop_scan): Break out of ...
	(flow_loops_find) ... here.
	* basic-block.h (flow_loop_scan): New.
	(LOOP_ENTRY_EDGES, LOOP_EXIT_EDGES): Add.
	(LOOP_EDGES, LOOP_EXITS_DOMS, LOOP_ALL): Redefine.

2001-01-09  Alexandre Oliva  <aoliva@redhat.com>

	* cppinit.c (cpp_cleanup): NULLify macro_buffer and zero
	macro_buffer_len.
	* cppmacro.c (cpp_macro_definition): Reset macro_buffer_len when
	realloc()ing macro_buffer.

	* hwint.h (HOST_BITS_PER_WIDE_INT, HOST_WIDE_INT): Use long long
	if it's wider than long and the target's long is wider than the
	host's.

2001-01-09  Mark Mitchell  <mark@codesourcery.com>

	Remove support for using UWIN as a host machine.
	* configure.in: Issue an error message.
	* configure: Regenerated.
	* config.gcc: Remove xm_* UWIN configury.
	* config/i386/xm-uwin.h: Remove.

2001-01-08  Nick Clifton  <nickc@redhat.com>

	* config/v850/v850.c (ra_rtx): Delete.
	(v850_save_machine_status): Delete.
	(v850_restore_machine_status): Delete.
	(v850_init_machine_status): New function.
	(v850_mark_machine_status): New function.
	(v850_free_machine_status): New function.
	(v850_return_addr): Use ra_rtx field in machine structure.
	(v850_init_expanders): Use new functions.

	* config/v850/v850-protos.h: Fix prototypes for v850_output_*
	* config/v850/v850.c: Change arguments to v850_output+* functions
	to take a const char *, to avoid compile time warning.
	* config/v850/v850.h (ASM_OUTPUT_LABELREF): Undefine, not needed.
	(USER_LABEL_PREFIX): Redefine.

2000-01-08  Jim Wilson  <wilson@redhat.com>

	* sched-rgn.c (BITSET_ADD, BITSET_REMOVE, bitset_member): Cast
	1 to unsigned HOST_WIDE_INT before left shift.

2001-01-08  Nick Clifton  <nickc@redhat.com>

	* config/arm/arm.c (arm_mark_machine_status): Check to see if
	the machine structure has been allocated.
	(arm_free_machine_status): New function: Free the machine
	specific function structure.

2001-01-08  Richard Henderson  <rth@redhat.com>

	* jump.c (simplejump_p): Revert last change.

2001-01-08  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cppinit.c (init): Rename init_library.
	(cpp_create_reader): Update.
	* gcc.c (cpp_options): If -o given, use it as the target of
	any -M options.

2001-01-08  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (arm_arch5e): New variable.
	(all_cores): XScale is a 5TE device.
	(arm_override_options): Set arm_arch5e.
	(arm_init_builtins): __builtin_prefetch is in arch5e.
	* arm.h (arm_arch5e): Declare it.

	* arm.h (PREDICATE_CODES): Add arm_hard_register_operand.

	* arm.md (define_constants): Add defines for UNSPEC and
	UNSPEC_VOLATILE insns.  Update all users.
	(define_constants): Add constants for IP_REGNUM, SP_REGNUM, PC_REGNUM.
	* arm.c (multi_register_push, note_invalid_constants)
	(emit_multi_reg_push, emit_sfm, expand_prologue): Use constants.
	* arm.h (SP_REGNUM, IP_REGNUM, PC_REGNUM): Delete defines.
	(STACK_POINTER_REGNUM): Define in terms of SP_REGNUM.

Mon Jan  8 16:14:56 MET 2001  Jan Hubicka  <jh@suse.cz>

	* jump.c (jump_optimize_1): Use reversed_comparison_code
	instead of can_reverse_comparison_p.
	(jump_back_p): Likewise.
	(invert_exp_1): Likewise.
	(thread_jumps): Likewise.
	* simplify-rtx.c (simplify_unary_operation): Likewise.
	(simplify_ternary_operation): Likewise.
	* cse.c (find_comparison_args): Convert to use
	can_reverse_comparison_p.
	(record_jump_equiv): Likewise.

2001-01-08  Richard Earnshaw  <rearnsha@arm.com>

	* arm.h (HARD_REGNO_RENAME_OK): Delete.
	(EPILOGUE_USES): Define.
	(INITIAL_ELIMINATION_OFFSET): Current prologue code does not
	automatically stack the LR if it isn't live.

Mon Jan  8 13:46:02 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_expand_int_movcc): Take care to reverse fp conditions
	properly.

Sun Jan  7 18:37:43 2001  Mark P Mitchell  <mark@codesourcery.com>

	* ggc-page.c (max_alignment): New structure.
	(MAX_ALIGNMENT): New macro.
	(init_ggc): Use it to round up the sizes in the
	extra_order_size_table.

2001-01-07  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* config/rs6000/rs6000.h (EPILOGUE_USES): New, mark link register
	after reload.

2001-01-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.def (BUILT_IN_FPRINTF): New entry.

	* c-common.c (c_expand_builtin_fprintf): New function.
	(init_function_format_info): Handle __builtin_fprintf.
	(c_common_nodes_and_builtins): Declare fprintf/__builtin_fprintf.
	(c_expand_builtin): Handle BUILT_IN_FPRINTF.

	* c-decl.c (duplicate_decls): Adjust comment.

	* extend.texi (fprintf): Document new builtin.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* jump.c (simplejump_p): Recognize any single_set jump
	of the proper form.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* configure.in (slibdir): Accept an --with-slibdir option.
	Use "test" not "[" in configure.  Default to $(libdir).

	* config/t-linux (SHLIB_INSTALL): Double quote slibdir;
	fix typo in rm -f.
	* config/t-aix43 (SHLIB_INSTALL): Likewise.
	* config/alpha/t-osf4 (SHLIB_INSTALL): Likewise.
	(SHLIB_LINK): Create links for the soname.
	* config/mips/t-iris6: Likewise.
	* config/sparc/t-slibgcc: Likewise.
	* config/sparc/t-slibgcc-sld: Likewise.

2001-01-07  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.c (constant_call_address_operand): Accept
	(const (plus (symbol_ref) (const_int))).
	* config/i386/i386.h (PREDICATE_CODES): Add CONST for
	constant_call_address_operand.

2001-01-08  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* libgcc2.h (W_TYPE_SIZE): Fix case where MIN_UNITS_PER_WORD == 1
	and LONG_LONG_TYPE_SIZE > 32.

2001-01-07  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* jump.c (reversed_comparison_code_parts): Fix typo introduced by
	the previous change.

Sun Jan  7 19:37:48 MET 2001  Jan Hubicka  <jh@suse.cz>

	* jump.c (reversed_comparison_code_parts, reversed_comparison_code):
	New.
	(can_reverse_comparison_p): Rewrite to use reversed_comparison_code.
	(reverse_condition_maybe_unordered): Abort on unsigned comparisons.
	* rtl.h (reversed_comparison_code_parts, reversed_comparison_code):
	Declare.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* fix-header.c (read_scan_file): s/pfile/scan_in/.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lang.c (c_post_options): Call cpp_post_options.
	* objc/objc-act.c (objc_post_options): Similarly.
	* cppmain.c (main): Similarly.
	* fix-header.c (read_scan_file): Similarly.
	* cppinit.c (cpp_start_read): Move option consistency checks
	to cpp_post_options.  Don't call init_dependency_output.
	If needed, add default target and main file dependency.
	(OPT_MD, OPT_MMD): Remove.
	(OPT_MF): New.
	(cpp_handle_option): Update for OPT_* changes.
	(cpp_post_options): New.
	(init_dependency_output): Command line -MF overrides environment
	variables.  Don't set default target etc.  Suppress output
	if dependencies are going to stdout.
	(print_help): Update.
	* cpplib.h (cpp_post_options): New.
	* gcc.c (cpp_options): Update for -MD, -MMD, -MF.

Sun Jan  7 14:44:19 MET 2001  Jan Hubicka  <jh@suse.cz>

	* jump.c (comparison_dominates_p): Support unordered compares.

Sun Jan  7 14:39:07 MET 2001  Jan Hubicka  <jh@suse.cz>

	* simplify-rtx.c (simplify_relational_operation): Always simplify
	ORDERED and UNORDERED when FLAG_FAST_MATH.  Handle properly UNLE
	and UNGE.

Sun Jan  7 14:35:13 MET 2001  Jan Hubicka  <jh@suse.cz>

	* combine.c (combine_simplify_rtx): Recognize the unordered compares.
	(nonzero_bits): Likewise.
	(simplify_comparison): Likewise.
	(num_sign_bit_copies): Likewise; return more sane value depending
	on STORE_FLAG_VALUE.
	(known_cond): Do not assume EQ to be always true for equivalent
	operands.

Sun Jan  7 14:31:57 MET 2001  Jan Hubicka  <jh@suse.cz>

	* cse.c (fold_rtx): Handle unordered comparisons.

Sun Jan  7 13:49:19 MET 2001  Jan Hubicka  <jh@suse.cz>

	* rtlanal.c (set_of_1): New static function.
	(reg_set_last_1, reg_set_p_1, reg_set_reg, reg_set_flag,
	 reg_set_last_unknown, reg_set_last_value, reg_set_last_first_regno,
	 reg_set_last_last_regno): Remove.
	(set_of): New global function.
	(set_of_data): New structure.
	(reg_set_p, reg_set_last): Revamp for set_of.
	* rtl.h (set_of): New.

2001-01-07  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (c_common_nodes_and_builtins): Add _Exit builtin.
	* extend.texi: Document _Exit builtin.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* (initialize, initialize_builtins,
	initialize_dependency_output, initialize_standard_includes):
	Rename s/initialize/init. Update.
	(init_dependency_output): Move to after
	cpp_handle_options, the correct location temporally at least.
	(opt_comp): Move next to init (), its caller.  Fix prototype.
	(init): Make "initialized" local scope.
	(cpp_create_reader): Always call init ().
	(cpp_start_read): Update.
	(output_deps): New function, broken out of cpp_finish.
	(cpp_finish): Break out output_deps.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* collect2.c (COFF specific stuff): Revert 12-06 patch
	to prototype system functions.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

	* hard-reg-set.h: Add multiple include guard.
	* basic-block.h (struct loop): Add `sink' field.
	* loop.h: Include sbitmap.h, hard-reg-set.h, and basic-block.h.
	(emit_iv_add_mult): Delete.
	(loop_iv_add_mult_hoist, loop_iv_add_mult_sink): Define.
	(loop_iv_add_mult_emit_before, loop_insn_sink): Define.
	(unroll_loop): Remove end_insert_before argument.
	* loop.c (loop_givs_rescan): Remove end_insert_before argument.
	(maybe_eliminate_biv_1): Likewise.
	(emit_iv_add_mult): Delete.
	(gen_add_mult, loop_regs_update): New.
	(loop_insn_emit_after, loop_insn_emit_before): New.
	(loop_insn_sink, loop_insn_sink_or_swim): New.
	(emit_iv_add_mult): Delete.
	(scan_loop): Set loop->sink.
	(loop_givs_reduce): Use loop_insn_sink and its ilk.
	(loop_givs_rescan, strength_reduce, check_dbra_loop): Likewise.
	(maybe_eliminate_biv_1): Likewise.
	(maybe_eliminate_biv_1): Add basic block argument.
	* unroll.c (unroll_loop): Remove end_insert_before argument.
	(find_splittable_regs): Likewise.
	(find_splittable_regs): Use loop_insn_sink and its ilk.
	(find_splittable_givs, final_biv_value, final_giv_value): Likewise.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

	* loop.h (loop_insn_hoist): New prototype.
	* loop.c (loop_insn_hoist, loop_insn_emit_before): New.
	(move_movables, loop_givs_rescan): Use loop_insn_hoist.
	(check_dbra_loop, load_mems): Likewise.
	* unroll.c (unroll_loop, find_splittable_regs): Likewise.
	(find_splittable_givs): Likewise.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

	* loop.c (emit_iv_add_mult): Use single_set to examine new insn.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* sched-rgn.c (is_cfg_nonregular): Fix thinko's last change.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* Makefile.in (DRIVER_DEFINES): Define ENABLE_SHARED_LIBGCC and
	NO_SHARED_LIBGCC_MULTILIB as required for the target.
	* gcc.c (init_spec): Massage the existing libgcc_spec into a
	variant that handles a shared libgcc.
	(process_command): Always validate -{static,shared}-libgcc.
	(do_spec_1): New 'M' case.
	* invoke.text (Link Options): Document -{static,shared}-libgcc.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* Makefile.in (slibdir): New variable.
	(libgcc.mk): Pass SHLIB_INSTALL to mklibgcc.
	(installdirs): Create slibdir.
	(install-libgcc, install-multilib): Defer to libgcc.mk.
	* configure.in (slibdir): Substitute.
	* mklibgcc.in (install): New target.

	* config/t-linux (SHLIB_LINK): Create links for the soname.
	(SHLIB_INSTALL): New.
	* config/alpha/t-osf4 (SHLIB_INSTALL): New.
	* config/mips/t-iris6 (SHLIB_INSTALL): New.
	* config/rs6000/t-aix43 (SHLIB_INSTALL): New.
	* config/sparc/t-slibgcc (SHLIB_INSTALL): New.
	* config/sparc/t-slibgcc-sld (SHLIB_INSTALL): New.

2001-01-07  Richard Henderson  <rth@redhat.com>

	* config/rs6000/aix.h (LINK_LIBGCC_SPECIAL_1): New.
	* config/rs6000/rs6000.h (LIBGCC_SPEC): Remove.
	* config/rs6000/sysv4.h (LIBGCC_SPEC): Remove.

2001-01-07  Michael Hayes  <mhayes@redhat.com>

	* loop.c (count_loop_regs_set): Delete.
	(load_mems_and_recount_loop_regs_set): Delete.
	(loop_regs_scan): Merge common code from count_loop_regs_set,
	scan_loop, and load_mems_and_recount_loop_regs_set.
	(scan_loop): Call load_mems directly and loop_regs_scan
	again if new registers created.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* toplev.c (main): Call the front-end specific post_options
	hook if one is given.
	* toplev.h (struct_lang_hooks, lang_hooks): New.
	* c-lang.c (c_post_options, lang_hooks): Implement lang_hooks
	for the C front end.
	* cp/decl2.c (cxx_post_options, lang_hooks): Implement
	lang_hooks for the C++ front end.
	* objc/objc-act.c (objc_post_options, lang_hooks): Implement
	lang_hooks for the ObjC front end.
	* f/com.c (lang_hooks): Hooks for the Fortran front end.
	* java/lang.c (lang_hooks): Hooks for the Java front end.

2001-01-07  Neil Booth  <neil@daikokuya.demon.co.uk>

	* c-lex.c (init_c_lex): Request #define / #undef callbacks
	for verbose DWARF[2] debugging.
	(cb_define, cb_undef): The new callbacks.
	* toplev.h (debug_define, debug_undef): Make const correct.
	* toplev.c (debug_define, debug_undef): Similarly.  Do not
	perform the verbosity tests here anymore.

2001-01-07  Alexandre Oliva  <aoliva@redhat.com>

	* reload.c (subst_reloads): Take INSN argument.  When
	replacing a LABEL_REF in a JUMP_INSN, add a REG_LABEL note.
	* reload.h (subst_reloads): Adjust prototype.
	* reload1.c (reload_as_needed): Pass INSN to subst_reloads.
	* jump.c (mark_all_labels): Canonicalize any REG_LABEL notes
	present in JUMP_INSNs and copy them to JUMP_LABEL.
	* flow.c (find_label_refs, find_basic_blocks_1): Skip
	JUMP_INSNs and insns with REG_LABELs that are followed by
	JUMP_INSNs with the same REG_LABEL.
	* sched-rgn.c (is_cfg_nonregular): Likewise.
	* rtlanal.c (computed_jump_p): Make it false if a REG_LABEL
	note is available.
	* unroll.c (unroll_loop): Look for REG_LABEL notes in
	JUMP_INSNs too.
	* rtl.texi (REG_LABEL): Document usage in JUMP_INSNs.

2001-01-06  Richard Henderson  <rth@redhat.com>

	* loop.c (scan_loop): Use xcalloc for the regs array.
	(load_mems_and_recount_loop_regs_set): Zero the new memory
	received from xrealloc.

2001-01-06  Neil Booth  <neil@daikokuya.demon.co.uk>

	* mkdeps.c (deps_add_dep): Fix vector re-allocation.

Sat Jan  6 00:09:34 2001  J"orn Rennecke <amylaar@redhat.com>

	* integrate.c (copy_rtx_and_substitute): When copying
	an ignored return value, strip REG_FUNCTION_VALUE_P.

2001-01-06  Michael Hayes  <mhayes@redhat.com>

	* loop.c (debug_biv, debug_giv): New.
	(loop_biv_dump): Break out from ...
	(record_biv): ... here.
	(loop_giv_dump): Break out from ...
	(record_giv): ... here.
	(loop_bivs_check): Use print_simple_rtl.
	* unroll.c (loop_iterations): Use print_simple_rtl.

2000-01-05  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.md (return, return_internal): Modify patterns to prevent regrename
	mucking with the return pointer.

2001-01-05  Richard Henderson  <rth@redhat.com>

	* dwarf2out.c (mem_loc_descriptor) [case MEM]: Revert 10-31 change.

Fri Jan  5 16:34:18 2001  Nick Clifton  <nickc@redhat.com>

	* config/v850/lib1funcs.asm: Replace __mulsi3 routine with faster
	version supplied by Matteo Frigo.

2001-01-05  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpp.texi: Update for -MQ.
	* cppinit.c (cpp_create_reader): Always create pfile->deps.
	(cpp_cleanup): Always free pfile->deps.
	(initialize_dependency_output): Don't create pfile->deps.
	(cpp_handle_option): Similarly.
	(OPT_MQ): New.
	* gcc.c (cpp_options): Handle -MQ.
	(DEFAULT_WORD_SWITCH_TAKES_ARG): Add -MQ.
	* mkdeps.c (base_name): Remove.
	(deps_init): Don't allocate vector space until it's needed.
	(deps_free): Only free vectors if allocated.
	(deps_add_target, deps_add_dep): Update for initial allocation.
	(deps_add_default_target): Don't strip to the base_name.

2001-01-05  DJ Delorie <dj@redhat.com>

	* config/v850/v850.h (RETURN_ADDR_RTX): Define.
	(INIT_EXPANDERS): Define.

	* config/v850/v850.c (struct machine_function): Define.
	(v850_save_machine_status): New function.
	(v850_restore_machine_status): New function.
	(v850_return_addr): New function.
	(v850_init_expanders): New function.

	* config/v850/v850-protos.h: Add prototypes for v850_return_addr
	and v850_init_expanders.

2001-01-05  Zack Weinberg  <zack@wolery.stanford.edu>

	* cpplib.h (struct cpp_reader): Add help_only field.
	* cppinit.c (COMMAND_LINE_OPTIONS): Add OPT_version.
	(cpp_handle_option): Set pfile->help_only if we see -h,
	--help, -target-help, or --version.  Print version string but
	do not set help_only if we see -v or -version.  Make text
	printed by -v match that printed by (-)-version.

	* cppmain.c (main): Exit after option parsing if
	pfile->help_only is true.

	* toplev.c (independent_decode_option): Call print_version,
	then exit, if we see --version (but not -version).
	(print_version): Split lengthy message into two lines.

2001-01-05  Nick Clifton  <nickc@redhat.com>

	* config/v850/v850.c (v850_encode_data_area): Use alloca to create
	temporary string for initialisation before calling ggc_alloc_string.

2001-01-06  Michael Hayes  <mhayes@redhat.com>

	* rtl.h (print_simple_rtl): New.
	* print-rtl.c (print_simple_rtl): New.
	(flag_simple): New.
	(print_rtx): Disable printing of flags and modes, etc.,
	if `flag_simple` nonzero.

2001-01-05  Zack Weinberg  <zack@wolery.stanford.edu>

	* function.c (fixup_var_refs): Use push_to_full_sequence where
	possible.

2001-01-05  Michael Meissner  <meissner@redhat.com>

	* flags.h (flag_reorder_blocks): Add declaration.
	(flag_rename_block): Ditto.

2001-01-05  DJ Delorie  <dj@redhat.com>

	* function.c (reorder_blocks): Make sure the flags are all reset
	before using them to mark blocks, else a second invocation will
	corrupt the block chain.
	(reorder_blocks_0): New, resets the flags.

Fri Jan  5 20:34:06 2001  J"orn Rennecke <amylaar@redhat.com>

	* cse.c (find_comparison_args): Stop if the argument is known to
	be constant.

2001-01-05  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (movdf): When splitting load into pair of
	registers, don't clobber the register used in the address too
	early.

2001-01-05  Jeffrey Oldham  <oldham@codesourcery.com>

	* varasm.c (mark_constant_pool): Improve initial comments.
	(mark_constants): Move marking of constants to mark_constant.
	(mark_constant): New function to recursively mark all constants
	referred to by a constant.

2001-01-05  Catherine Moore  <clm@redhat.com>

	* dbxout.c ((dbxout_parms): Handle invisible ref where decl is a REG.

2001-01-05  Phil Edwards  <pme@sources.redhat.com>

	* cp/lang-options.h:  Bring comment in line with reality.
	* f/lang-options.h:  Likewise.
	* java/lang-options.h:  Likewise.
	* objc/lang-options.h:  Likewise.
	* ch/lang-options.h:  Likewise.
	* f/g77.texi:  And update the manual.

2001-01-05  Marek Michalkiewicz  <marekm@linux.org.pl>
	    Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr-protos.h (avr_peep2_scratch_safe): Prototype.
	* config/avr/avr.c (avr_peep2_scratch_safe): New function.
	* config/avr/avr.md (all peepholes that request a scratch register):
	Call it, FAIL the peephole if not safe (in interrupt functions).

2001-01-05  Mark Mitchell  <mark@codesourcery.com>

	* ggc-page.c (NUM_EXTRA_ORDERS): Hardwire to zero for now.

2001-01-05  Joseph S. Myers  <jsm28@cam.ac.uk>

	* builtins.def (BUILT_IN_CONJ, BUILT_IN_CREAL, BUILT_IN_CIMAG):
	Define.
	* builtins.c (expand_builtin): Abort on BUILT_IN_CONJ,
	BUILT_IN_CREAL and BUILT_IN_CIMAG.
	* c-common.c (c_common_nodes_and_builtins): Create builtin conjf,
	conj, conjl, crealf, creal, creall, cimagf, cimag and cimagl.
	(expand_tree_builtin): Handle BUILT_IN_CONJ, BUILT_IN_CREAL and
	BUILT_IN_CIMAG.
	* extend.texi: Document these builtins.

2001-01-05  Daniel Berlin  <dberlin@redhat.com>

	* c-common.c (lang_get_alias_set): Say we know nothing of
	VECTOR_TYPE aliasing.

	* dwarf2out.c (is_base_type): Handle VECTOR_TYPE properly.

2001-01-05  Bruce Korb  <bkorb@gnu.org>

	* fixinc/mkfixinc.sh(vax-*-bsd): convert exit and atexit calls to
	their x* equivalent versions for atexit-less systems
	* fixinc/fixincl.c(main): do not return from main() on atexit-less
	systems (or any other system any more).

2001-01-05  Richard Earnshaw  <rearnsha@arm.com>

	* arm.md (ldmsi_postinc): Avoid use of match_dup between input and
	output operands.  Use arm_hard_register_operand for operand 4.
	(stmsi_postinc): Similarly.
	(ldmsi): Use arm_hard_register_operand for opernand 2.
	(stmsi): Similarly.
	* arm.c (arm_hard_register_operand): New function.
	* arm-protos.h (arm_hard_register_operand): Prototype it.

	* arm.h (HARD_REGNO_RENAME_OK): Define.

Fri Jan  5 16:29:49 MET 2001  Jan Hubicka  <jh@suse.cz>

	* simplify-rtx.c (cfc_args): add "unordered" field.
	(check_fold_consts): Set unordered field.
	(simplify_relational_operation): Simplify the unordered
	comparisons.

	* reg-stack.c (swap_rtx_condition): Ensure that the transformation
	is valid.

	* emit-rtl.c (try_split): Fix code to mark labels.
	* jump.c (mark_jump_label): Make global.
	* rtl.h (mark_jump_label): Declare.

	* predict.c (estimate_probability): Handle unordred comparisons.

2001-01-05  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpp.texi: Update for -MP.  Clarify behaviour of -MT.
	* cppinit.c (initialize_dependency_output):  Update.
	(cpp_finish): Output dummy targets for -MP.
	(OPT_MP): New.
	(cpp_handle_option): Handle -MP.  Don't quote -MT options.
	* cpplib.h (struct cpp_options): Add deps_phony_targets.
	* gcc.c (cpp_options): Update to handle -MP.
	* mkdeps.c (deps_add_target, deps_add_default_target): Update
	to quote only the default target.
	(deps_phony_targets): Insert a preceding newline.  Rename from
	deps_dummy_targets for consistency.
	* mkdeps.h: Update

2001-01-05  Alexandre Oliva  <aoliva@redhat.com>

	* calls.c (emit_library_call_value_1): Support
	INIT_CUMULATIVE_LIBCALL_ARGS.
	* tm.texi (INIT_CUMULATIVE_LIBCALL_ARGS): Document it.

2001-01-04  Richard Henderson  <rth@redhat.com>

	* c-decl.c (finish_struct): Detect flexible array members
	used in an inappropriate context.
	* c-typeck.c (really_start_incremental_init): Special case
	constructor_max_index for zero length arrays.
	(pop_init_level): Allow initialization of flexible array
	members.  Deprecate initialization of zero length arrays.
	Don't issue missing initializer warning for flexible array
	members or zero length arrays.
	(process_init_element): Don't dereference null DECL_SIZE.
	* varasm.c (array_size_for_constructor): Return a HOST_WIDE_INT.
	Don't abort for empty constructors.  Use size_binop
	(output_constructor): Add commentary regarding zero length
	array futures.  Abort if we try to initialize an array of
	unspecified length with a non-empty constructor in the middle
	of a structure.

	* extend.texi (Zero Length): Update and clarify documentation
	on static initialization.

2001-01-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_expand_prologue): Don't compile an ISR
	with more than 32767 words of local storage.

2001-01-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_init_builtins): Remove builtin support
	for 'abs', 'labs', and 'fabs'.
	(c4x_expand_builtin): Likewise.
	* config/c4x/c4x.h (enum c4x_builtins): Likewise.

2001-01-05  Alexandre Oliva  <aoliva@redhat.com>

	* config/sh/sh.md (prget, prset): New insn types.
	(return delay slot): Dont' allow prset.
	(call, sfunc delay slot): Don't allow prget.
	(movsi_i, movsi_ie, movsi_i_lowpart): Create separate alternatives
	for prset and prget.

2001-01-05  Michael Hayes  <mhayes@redhat.com>

	* loop.h (struct loop_reg): New.
	(struct loop_regs): Change to use array of `struct loop_reg'.
	* loop.c: Replace assortment of varrays with single regs array.
	(count_one_set): Delete may_not_move array argument
	and use regs array instead.  All caller's changed.
	(count_loop_regs_set): Delete may_not_move and single_usage
	arguments and use regs array instead.  All caller's changed.
	(find_single_use_in_loop): Replace usage array argument with pointer
	to regs structure.  All caller's changed.
	(loop_optimize): Delete `moved_once' array.

2001-01-05  Michael Hayes  <mhayes@redhat.com>

	* loop.c (prescan_loop): Set loop_info->has_nonconst_call.
	Use it instead of loop_info->has_call for scanning loop mems.
	(check_dbra_loop): Replace loop_info->has_call test with
	loop_info->has_nonconst_call.

2000-01-04  Matthew Hiller  <hiller@redhat.com>

	* config/sh/sh.h (EPILOGUE_USES): Recognize fpscr as epilogue-used
	for TARGET_SH3E.

2001-01-04  Joseph S. Myers  <jsm28@cam.ac.uk>

	* fold-const.c (fold): When folding a CONJ_EXPR of a COMPLEX_CST,
	use TREE_REALPART and TREE_IMAGPART instead of TREE_OPERAND.

2001-01-04  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (SIZE_TYPE, WCHAR_TYPE): Define.
	(flag_short_double, flag_short_wchar): Define.
	(c_common_nodes_and_builtins): Create many tree nodes shared
	between C and C++ here instead of in cp/decl.c and ...
	* c-decl.c (init_decl_processing): ... here.
	(SIZE_TYPE, WCHAR_TYPE): Don't define.
	(flag_short_double, flag_short_wchar): Don't define.
	(record_builtin_type): New function.
	(build_void_list_node): New function.
	* c-common.h (flag_short_double, flag_short_wchar,
	record_builtin_type, build_void_list_node): Declare.

Thu Jan  4 21:09:47 2001  J"orn Rennecke <amylaar@redhat.com>

	* integrate.c (expand_inline_function): Don't put a virtual
	register into the reg map.

	* function.c (fixup_var_refs_1): If force_operand didn't put
	the address into the target, move it there.

2001-01-04  Mark Mitchell  <mark@codesourcery.com>

	Special-case tree_decl/tree_list allocations.
	* ggc-page.c (OBJECT_PER_PAGE): Reimplement.
	(OBJECT_SIZE): New macro.
	(NUM_EXTRA_ORDER): Likewise.
	(extra_order_size_table): New variable.
	(NUM_ORDERS): New macro.
	(objects_per_page_table): New variable.
	(object_size_table): New variable.
	(G.pages): Use NUM_ORDERS to bound the array.
	(G.page_tails): Likewise.
	(DIV_ROUND_UP): Remove.
	(BITMAP_SIZE): Use CEIL, instead of DIV_ROUND_UP.
	(alloc_page): Use OBJECT_SIZE.
	(size_lookup): Don't make it const.
	(ggc_alloc): Use OBJECT_SIZE.
	(ggc_set_mark): Likewise.
	(ggc_get_size): Likewise.
	(init_ggc): Set up the object_size_table, objects_per_page_table,
	and adjust size_lookup.
	(ggc_recalculate_in_use_p): Use CEIL, not DIV_ROUND_UP.
	(ggc_pop_context): Use NUM_ORDERS.
	(clear_marks): Likewise.
	(sweep_pages): Likewise.
	(poison_pages): Likewise.
	(ggc_print_statistics): Use OBJECT_SIZE.

Thu Jan  4 15:54:05 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* varasm.c (output_constructor): Use HOST_WIDE_INT for sizes.
	Only call array_size_for_constructor if last field and array type
	with no upper bound.

2001-01-04  Philip Blundell  <philb@gnu.org>

	* config/arm/arm.c (arm_gen_constant): Prefer to emit constants
	from bit 31 downwards, if this requires no more insns.
	(count_insns_for_constant): New helper function for above.

2001-01-04  Alexandre Oliva  <aoliva@redhat.com>

	* gencodes.c (output_predicate_decls): Remove empty initializer.

2001-01-04  Mark Mitchell  <mark@codesourcery.com>

	* tree.c (copy_node): Remove documentation about obstacks.
	(buidl1): Check that nobody tries to build 2-argument nodes this
	way.

2001-01-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* sparc.h (PREDICATE_CODES): Delete fp_sethi_p, fp_mov_p and
	fp_high_losum_p.

	* gencodes.c (output_predicate_decls): Fill empty initializer
	braces.

2001-01-04  Jakub Jelinek  <jakub@redhat.com>

	* tradcpp.c (deps_file, print_deps_missing_files): New variables.
	(main): Handle -MG, -MD, -MMD.  Bail out if -MG is given without -M
	or -MM.
	(do_include): Handle missing headers like cpp0.
	* cppfiles.c (_cpp_execute_include): Don't prefix absolute header
	paths with first include pathname.  Don't strcat to uninitialized
	string.

2001-01-04  Bernd Schmidt  <bernds@redhat.com>

	* regrename.c (regrename_optimize): Don't rename from frame pointer
	if frame_pointer_needed.
	(do_replace): Don't set ORIGINAL_REGNO to a hard register number.
	* config/ia64/ia64.c (emit_all_group_insn_barriers): New function.
	(ia64_reorg): Use it instead of scheduling if ! optimize.
	(errata_emit_nops): Properly call asm_noperands.
	(ia64_sched_reorder): Finish cycle if we see an asm.
	(ia64_variable_issue): Clear scheduling state after asms.

2001-01-04  Neil Booth  <neil@daikokuya.demon.co.uk>

	* cpp.texi: Update for -MT.
	* cppinit.c (initialize_dependency_output): Add a default
	target if none has been given already.
	(no_tgt, OPT_MT): New.
	(cpp_handle_option): Handle -MT.  Update -M etc.
	* cpplib.h (struct cpp_options): Remove deps_target.
	* gcc.c (cpp_options): Handle -MT.
	* mkdeps.c (struct deps): Move from mkdeps.h.
	(deps_calc_target): Rename deps_add_default_target.  Add a
	default target if none has been specified already.
	* mkdeps.h (struct deps): Move to mkdeps.c.
	(deps_calc_target): Rename deps_add_default_target.

2000-01-03  Richard Henderson  <rth@redhat.com>

	* c-decl.c (grokdeclarator): Give zero-length arrays size zero.
	Remove dead code.
	* c-typeck.c (push_init_level): Move checks for flexible array
	members and zero length arrays ...
	(pop_init_level): ... here.  Silently discard empty initializations.
	Remove dead code.
	* varasm.c (output_constructor): Update for sizeof change to
	zero-length arrays.

	* extend.texi (Zero Length): Clarify semantics.

2001-01-03  Alexandre Oliva  <aoliva@redhat.com>

	* configure.in (tm.h): Include isns-codes.h last.
	* configure: Rebuilt.

2001-01-03  Richard Henderson  <rth@redhat.com>

	* config/alpha/alpha.md (addvsi3, addvdi3): New.
	(negvsi2, negvdi2, subvsi3, subvdi3, mulvsi3, mulvdi3): New.

2001-01-03  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* tradcpp.c (main): Make sure finclude() is called with a valid
	indepth value while handling -include.

2001-01-03  Alexandre Oliva  <aoliva@redhat.com>

	* gencodes.c (output_predicate_decls): New function.
	(main): Call it.
	* machmode.h (GET_MODE_MASK): Arrange for it to be defined
	even if it is not the first time machmode.h is #included.
	* config/sh/sh.c (fpul_operand): Declare MODE argument.
	* tm.texi (PREDICATE_CODES): Document predicate declarations.
	* gcc.texi (Copyright): Added 2001.

2001-01-03  Joseph S. Myers  <jsm28@cam.ac.uk>

	* c-common.c (c_common_lang_init): New function.  Warn if format
	warning options which only have effects when used with -Wformat
	are used without -Wformat.
	* c-common.h (c_common_lang_init): Declare.
	* c-lang.c (lang_init): Call c_common_lang_init.
	* objc/objc-act.c (lang_init): Call c_common_lang_init.

2001-01-03  Joseph S. Myers  <jsm28@cam.ac.uk>

	* configure.in: Check for the mktemp command.
	* configure: Regenerate.
	* gccbug.in: Use a separate temporary file $TEMP0 for one use of
	$TEMP.  Create temporary files with mktemp, if available at
	configure time; otherwise use set -C.  Remove temporary files
	before exit.

2001-01-03  Joseph S. Myers  <jsm28@cam.ac.uk>

	* configure.in: Require at least texinfo 4.0.  Check for whether
	Pod::Man is sufficiently recent to regenerate GCC manpages.
	* configure:  Regenerate.
	* Makefile.in (TEXI2POD): Call perl explicitly rather than relying
	on #!.
	(GENERATED_MANPAGES): Define.
	(generated-manpages): New target.  Depend on cpp.1 as well as
	gcov.1.
	(install-man): Depend on $(GENERATED_MANPAGES) (defined by
	configure to generated-manpages or empty) rather than on the
	manpages directly.  Remove execute permission from installed
	gcov.1 as well as cpp.1.
	* cpp.1, gcov.1: Regenerate.

2001-01-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (expand_builtin_strncmp): Use host_integerp and
	tree_low_cst.  Allow using cmpstrsi in more cases.

Wed Jan  3 10:48:43 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config/sparc/sparc.h (RETURN_IN_MEMORY): Return 0 for variable
	sized types.

Wed Jan  3 12:22:32 2001  Alexandre Oliva  <aoliva@redhat.com>

	* build-make (HOST_CFLAGS): Added `-DGENERATOR_FILE'.
	* Makefile.in (HOST_CFLAGS): Mention build-make.

Wed Jan  3 08:53:50 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config/sparc/sparc.md (nonlocal_goto): Emit goto_handler_and_restore
	as JUMP_INSN.

2001-01-01  Bernd Schmidt  <bernds@redhat.com>

	* builtins.c (expand_builtin_return_addr): Don't use MEM_ALIAS_SET on
	a REG rtx.

	* cse.c (cse_rtx_varies_p): Accept additional FROM_ALIAS arg.  All
	callers changed.

	* alias.c (throughout): Use ORIGINAL_REGNO when accessing
	reg_base_value and reg_known_value arrays.
	(init_alias_analysis): Add more cases to detect known values.
	* sched-deps.c (deps_may_trap_p): New function.
	(sched_analyze_2): Use it.

2001-01-03  Alexandre Oliva  <aoliva@redhat.com>

	* combine.c (simplify_shift_const): Even if we're sign-extracting,
	don't discard an ASHIFTRT if we're shifting in a wider mode.

2000-01-02  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* toplev.c (rest_of_compilation): Don't print basic block information
	when CFG isn't up to date.

2001-01-02  Mark Elbrecht  <snowball3@bigfoot.com>

	* config/i386/djgpp.h (DWARF2_DEBUGGING_INFO): Define.
	(UNALIGNED_INT_ASM_OP, UNALIGNED_DOUBLE_ASM_OP): Define.
	(UNALIGNED_SHORT_ASM_OP): Define.
	(CPP_PREDEFINES): Remove defines for GO32 and DJGPP.

2001-01-02  Mark Mitchell  <mark@codesourcery.com>

	* fold-const.c (fold_convert): Fix typo.

2001-01-02  Richard Henderson  <rth@redhat.com>

	* c-common.h (ASM_INPUT_P): New.
	* c-parse.in (asm): Set it when needed.
	* c-semantics.c (genrtl_asm_stmt): Test it instead of the
	existance of an operand.

Tue Jan  2 20:27:07 MET 2001  Jan Hubicka  <jh@suse.cz>

	* dwarf2out.c (stack_adjust_offset): Handle PRE_MODIFY.
	(dwarf2out_frame_debug_expr): Likewise.
	(mem_loc_descriptor): Handle PRE and POST_MODIFY.

Tue Jan  2 20:21:31 MET 2001  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_split_to_parts): Return number of part required;
	handle TFmodes.
	(print_operand, ix86_expand_branch, ix86_expand_fp_movcc): Handle
	TFmodes.
	(ix86_split_long_move): Use number of part returned
	by ix86_split_to_parts
	* i386.h (MASK_128BIT_LONG_DOUBLE, TARGET_128BIT_LONG_DOUBLE):
	New macros.
	(TARGET_SWITCHES): Add 128bit-long-double and 96bit-long-double
	(LONG_DOUBLE_TYPE_SIZE): Change from constant.
	(MAX_LONG_DOUBLE_TYPE_SIZE): New macro.
	(INTEL_EXTENDED_IEEE_FORMAT): Likewise.
	(ALIGN_MODE_128): Add TFmode.
	(IS_STACK_MODE): Likewise.
	(HARD_REGNO_NREGS): TFmode needs 3 registers.
	(HARD_REGNO_OK): Support TFmodes.
	(ASM_OUTPUT_LONG_DOUBLE): Handle TFmodes.
	* i386.md (scheduler definitions): Use memory operand to determine
	fst/fld instructions; use mode attribute to determine real mode of
	the instruction.
	(*tf): New patterns, expanders and splitters; based on XFmode patterns.
	* invoke.texi (128bit-long-double, 96bit-long-double): Document.

2001-01-02  Mark Mitchell  <mark@codesourcery.com>

	* tree.def (TRUTH_NOT_EXPR): Improve documentation.

Tue Jan  2 10:47:38 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.

	* expr.c (store_constructor_field): Update ALIGN before calling
	store_constructor.

2001-01-02  Jeffrey Oldham  <oldham@codesourcery.com>

	* config/mips/mips.c (function_arg): Don't pass NULL_TREE to
	host_integerp.

2001-01-02  Jeffrey Oldham  <oldham@codesourcery.com>

	* tm.texi (FUNCTION_ARG): Document that @var{type} can be an
	incomplete type.

Tue Jan  2 10:47:38 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.

	* c-decl.c (start_function): Don't warn on third parameter to main.

2001-01-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* tsystem.h: Define HAVE_DECL_GETOPT.

2001-01-02  Philip Blundell  <pb@futuretv.com>

	* config/arm/linux-gas.h (CLEAR_INSN_CACHE): Avoid illegal clobber
	of input operand.

2001-01-02  Richard Henderson  <rth@redhat.com>

	* alpha.md (*ze_and_ne): Duplicate insn condition to split.

2001-01-02  Andreas Jaeger  <aj@suse.de>

	* c-decl.c (c_decode_option): Remove support of
	-Wmissing-noreturn.

	* toplev.c (documented_lang_options): Remove -Wmissing-noreturn.
	(W_options): Add -Wmissing-noreturn here.

	* flow.c: Define lang_missing_noreturn_ok_p.
	(check_function_return_warnings): Use it.

	* c-common.h: Declare lang_missing_noreturn_ok_p.

	* c-lang.c (c_missing_noreturn_ok_p): New function.
	(lang_init): Set lang_missing_noreturn_ok_p.

	* invoke.texi (Warning Options): Document this.

2000-12-27  Phil Edwards  <pme@sources.redhat.com>

	* extend.texi (C++ Extensions):  New node for C++ attributes;
	  describe init_priority and com_interface.
	* invoke.texi:  Remove -finit-priority as it now has zero effect.
	* install.texi:  Fix xref syntax.
	* md.texi:  Likewise.

Mon Jan  1 21:28:29 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config.gcc (sparc64-wrs-vxworks*): New case.
	* config/sparc/vxsparc64.h, config/sparc/t-vxsparc64: New files.

	* config/sparc/sparc.c (sparc_override_options): Do support different
	pointer and architecture size.
	* config/sparc/sparc.h (MIN_UNITS_PER_WORD): Always 4.
	(POINTERS_EXTEND_UNSIGNED): Define.
	(Pmode): Test TARGET_ARCH64, not TARGET_PTR64.
	(FUNCTION_MODE): Define to be Pmode.
	* config/sparc/sparc.md (64-bit call patterns): FUNCTION_MODE now DI.

	* function.c (expand_function_end): Properly handle DECL_RESULT
	and copy when ptr_mode != Pmode.
	* expmed.c (make_tree): Convert X from Pmode to ptr_mode, if needed.

2001-01-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-common.c (c_common_nodes_and_builtins): Set prototype
	parameters for __builtin_fputs, __builtin_fputc and
	__builtin_fwrite.  Don't declare plain fputc as a builtin.

2001-01-01  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* loop.c (add_label_notes): Increment the label usage count when
	a note is added to an insn which refers to a CODE_LABEL.
	* gcse.c (add_label_notes): Likewise.

2001-01-01  Andreas Jaeger  <aj@suse.de>

	* loop.c (scan_loop): Use xmalloc to allocate movables.

2001-01-01  Alexandre Oliva  <aoliva@redhat.com>

	* tm.texi (REGISTER_MOVE_COST): Add a mode argument.
	* reload.c (REGISTER_MOVE_COST): Likewise.  Adjust all callers.
	* reload1.c (REGISTER_MOVE_COST): Likewise.
	* regclass.c (REGISTER_MOVE_COST): Likewise.
	(move_cost, may_move_in_cost, may_move_out_cost): Add mode
	dimension.  Adjust all users.
	(init_reg_sets_1): Iterate on all modes.
	* config/1750a/1750a.h (REGISTER_MOVE_COST): Adjust.
	* config/a29k/a29k.h (REGISTER_MOVE_COST): Adjust.
	* config/alpha/alpha.h (REGISTER_MOVE_COST): Adjust.
	* config/arc/arc.h (REGISTER_MOVE_COST): Adjust.
	* config/arm/arm.h (REGISTER_MOVE_COST): Adjust.
	* config/avr/avr.h (REGISTER_MOVE_COST): Adjust.
	* config/c4x/c4x.h (REGISTER_MOVE_COST): Adjust.
	* config/d30v/d30v.h (REGISTER_MOVE_COST): Adjust.
	* config/dsp16xx/dsp16xx.h (REGISTER_MOVE_COST): Adjust.
	* config/h8300/h8300.h (REGISTER_MOVE_COST): Adjust.
	* config/i386/i386.h (REGISTER_MOVE_COST): Adjust.
	* config/ia64/ia64.h (REGISTER_MOVE_COST): Adjust.
	* config/m32r/m32r.h (REGISTER_MOVE_COST): Adjust.
	* config/m68hc11/m68hc11.h (REGISTER_MOVE_COST): Adjust.
	* config/m68k/m68k.h (REGISTER_MOVE_COST): Adjust.
	* config/mcore/mcore.h (REGISTER_MOVE_COST): Adjust.
	* config/mips/mips.h (REGISTER_MOVE_COST): Adjust.
	* config/mn10200/mn10200.h (REGISTER_MOVE_COST): Adjust.
	* config/mn10300/mn10300.h (REGISTER_MOVE_COST): Adjust.
	* config/ns32k/ns32k.h (REGISTER_MOVE_COST): Adjust.
	* config/pa/pa.h (REGISTER_MOVE_COST): Adjust.
	* config/pdp11/pdp11.h (REGISTER_MOVE_COST): Adjust.
	* config/pj/pj.h (REGISTER_MOVE_COST): Adjust.
	* config/romp/romp.h (REGISTER_MOVE_COST): Adjust.
	* config/rs6000/rs6000.h (REGISTER_MOVE_COST): Adjust.
	* config/sh/sh.h (REGISTER_MOVE_COST): Adjust.
	* config/sparc/sparc.h (REGISTER_MOVE_COST): Adjust.

2001-01-01  Bernd Schmidt  <bernds@redhat.com>

	* alias.c (fixed_scalar_and_varying_struct): Adjust prototype of
	arg VARIES_P.  Call it with extra arg.
	(true_dependence): Likewise.
	* rtl.h (rtx_addr_can_trap_p): Declare.
	(rtx_varies_p, rtx_addr_varies_p, true_dependence): Update
	prototypes.
	* rtlanal.c (rtx_addr_can_trap_p): No longer static.
	(rtx_varies_p): Accept extra arg FOR_ALIAS; only disallow
	pic offset table register if it's zero.  All callers changed.
	(rtx_addr_varies_p): Accept extra arg FOR_ALIAS; all callers changed.

Mon Jan  1 07:38:33 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* explow.c (convert_memory_address, case SYMBOL_REF): Copy
	STRING_POOL_ADDRESS_P.

	* config/sparc/sparc.c (input_operand): Properly test for short op.

	* config.gcc (sparc-*-elf): Include sparc/sol2.h.
	(sparc-*-rtems*): Include sparc/sol2.h and sparc/elf.h.
	(sparclite-*-elf*, sparc86x-*-elf*): Likewise.
	* config/sparc/elf.h: No longer include sol2.h.
	* config/sparc/lifeelf.h: No longer include sparc/elf.h.
	* config/sparc/rtemself.h, config/sparc/sp86x-elf.h: Likewise.

	* config/sparc/sparc.md: Test TARGET_ARCH64 instead of TARGET_PTR64.

2001-01-01  Michael Hayes  <mhayes@redhat.com>

	* loop.c (check_insn_for_bivs): Use ivs->n_regs to check array bounds.
	(find_mem_givs, record_biv, maybe_eliminate_biv): Likewise.
	(record_initial): Likewise.
	* unroll.c (copy_loop_body, loop_iterations): Likewise.
	(remap_split_bivs): Likewise.

2001-01-01  Michael Hayes  <mhayes@redhat.com>

	* loop.c (loop_ivs_free): New function.
	(strength_reduce): Break out from...

2001-01-01  Michael Hayes  <mhayes@redhat.com>

	* loop.h (struct iv): New.
	(REG_IV_TYPE, REG_IV_CLASS, REG_INFO): Modify to use 'struct iv'.
	(struct loop_ivs): Replace 'reg_iv_type', 'reg_iv_info',
	'reg_biv_class' fields with 'regs' and 'n_regs'.
	(struct ivs): Rename 'loop_iv_list' field to 'list'.
	* loop.c (loop_bivs_find, strength_reduce): Use ivs->regs array.
	* unroll.c (loop_iterations): Check array bounds with ivs->n_regs.

2000-12-31  Alexandre Oliva  <aoliva@redhat.com>

	* resource.c (mark_referenced_resources): Abort() before
	attempting to mark a pseudo register.
	(mark_set_resources): Likewise.

2001-01-01  Michael Hayes  <mhayes@redhat.com>

	* loop.h (REG_IV_CLASS): New accessor macro.
	* loop.c (REG_IV_CLASS): Use it instead of reg_iv_class array.
	* unroll.c (REG_IV_CLASS): Likewise.

See ChangeLog.4 for earlier changes.