X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2FChangeLog;h=5c17ee3f85f6e9b9b014c83eeae86e8dc308b8d4;hb=f81fddcacb07010032b671027d99e355dcf6576c;hp=4e37e14cf41139de2d00e9486f75cdffb6be2756;hpb=6f0a80d3fb3963fa4cb5769f8ab37b726eb4e5ea;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4e37e14cf41..5c17ee3f85f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,8 +1,511 @@ +2002-07-29 John David Anglin + + * real.c (ieee_24, ieee_53, ieee_64, ieee_113): Define only if the + floating point format of the target is IEEE. + * (dec_f, dec_d, dec_g, dec_h): Define only if the floating point + format of the target is DEC. + +2002-07-29 Richard Henderson + + * unroll.c (verify_addresses): Remove. + (find_splittable_givs): Never split DEST_ADDR givs. + +2002-07-29 Geoffrey Keating + + * doc/gty.texi (GGC Roots): Clarify that the list of syntaxes + is exhaustive. + (Files): Improve documentation on generated source files. + + * doc/extend.texi (Translation implementation): Document what + diagnostics look like. + (Identifiers implementation): Document that there's normally no + limit on identifier names. + (Integers implementation): Document two's complement. + (Hints implementation): Document that GCC honours 'inline', mostly. + (Preprocessing directives implementation): Document that GCC + requires the current time. + +2002-07-30 Gabriel Dos Reis + + * c-pretty-print.h (struct c_pretty_print_info): Add new member. + (pp_initializer): New macro. + (pp_c_initializer): Declare. + * c-pretty-print.c (pp_c_primary_expression): HAndle TARGET_EXPR. + (pp_c_initializer): Define. + (pp_c_initializer_list): New function. + (pp_c_postfix_expression): Handle ABS_EXPR, COMPLEX_CST, + VECTOR_CST, CONSTRUCTOR. + (pp_c_unary_expression): Handle CONJ_EXPR, REALPART_EXPR, + IMAGPART_EXPR. + (pp_c_cast_expression): Handle FLOAT_EXPR. + (pp_c_assignment_expression): Handle INIT_EXPR. + (pp_c_expression): Update. + +2002-07-30 Neil Booth + + * objc/objc-act.c (objc_init): Return immediately if filename + is NULL. + +2002-07-29 Eric Christopher + + * config/mips/elf.h: Remove ecoff.h and gofast includes. + (DWARF2_DEBUGGING_INFO, DBX_DEBUGGING_INFO): Define unconditionally. + (SDB_DEBUGGING_INFO): Undefine. + (PREFERRED_DEBUGGING_TYPE): Set to DWARF2_DEBUG. + (PUT_SDB_SIZE): Remove. + (SUBTARGET_ASM_DEBUGGING_SPEC): Redefine. + (STARTFILE_SPEC): Add isa3264 define. + * config/mips/elf64.h: Ditto. Move TARGET_MEM_FUNCTIONS from here... + * config/mips/ecoff.h: Remove. and here... + * config/mips/iris3.h: and here... + * config/mips/sni-svr4.h: and here... + * config/mips/mips.h: To here. Remove OBJECT_FORMAT_ROSE ifdefs. + Add assembler -mmdebug options for non-dwarf debugging. + * config/mips/r3900.h: Remove debug info defines. + * config/mips/isa32-linux.h: Remove, move functionality to config.gcc. + * config/mips/isa3264.h: Ditto. + * config/mips/t-isa3264: Fix up for file removal and gofast configure + change. + * config/mips/t-elf: Ditto. + * config/mips/t-ecoff: Ditto. + * config/mips/t-r3900: Ditto. + * config/mips/t-iris5-6: Ditto. + * config/mips/t-isa3264: Ditto. + * config/mips/t-linux: Remove. + * config/mips/t-netbsd: Remove. + * config/mips/t-mips: New file. + * config/mips/t-gofast: Ditto. + * config/mips/netbsd.h: Remove unnecessary undefines. + * config/mips/linux.h: Remove #include of mips.h. + * config.gcc: Add mips.h include for elf targets. Remove tm_file + for ecoff. Add gofast configure option for mips. + +2002-07-29 Chris Demetriou + + * configure.in (mips*-*-*): Add a test to see if MIPS libgloss + linker scripts use STARTUP directives consistently. + * configure: Regenerate. + * config.in: Regenerate. + * config/mips/elf.h (STARTFILE_SPEC): Define conditionally, based + on whether HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES is defined. + * config/mips/elf64.h (STARTFILE_SPEC): Likewise. + * config/mips/isa3264.h (STARTFILE_SPEC): Do not redefine if + HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES is set; the result + will be the same. + +2002-07-29 Aldy Hernandez + + * config/rs6000/rs6000.md ("cpu"): Add ppc8540 to attribute. + +2002-07-29 Aldy Hernandez + + * config/rs6000/rs6000.h (RTX_COSTS): Add MULT case for 8540. + +2002-07-29 Aldy Hernandez + + * config/rs6000/rs6000.md: Move altivec patterns from here... + + * config/rs6000/altivec.md: ...to here. + +2002-07-29 Aldy Hernandez + + * config/rs6000/spe.md ("spe_evmra"): Change to unspec. + +2002-07-29 Richard Henderson + + * emit-rtl.c (set_mem_attributes_minus_bitpos): Rename from + set_mem_attributes and add BITPOS argument. Subtract it from + OFFSET when same is adjusted. + (set_mem_attributes): New wrapper function. + * expr.c (expand_assignment): Use set_mem_attributes_minus_bitpos; + remove offset adjustment hack. + * expr.h (set_mem_attributes_minus_bitpos): Declare. + +2002-07-29 Gabriel Dos Reis + + * Makefile.in (C_OBJS): Include c-pretty-print.o + (c-pretty-print.o): Add depency rule. + * pretty-print.h: Add more macros. + * c-pretty-print.c: New file. + * c-pretty-print.h: Likewise. + +2002-07-29 Aldy Hernandez + + * config/rs6000/spe.h (__internal_ev_mwhgumian): Cast vector + constants to __ev64_s32__. + (__internal_ev_mwhgsmian): Same. + (__internal_ev_mwhgsmfan): Same. + (__internal_ev_mwhgssfan): Same. + (__internal_ev_mwhgumiaa): Same. + (__internal_ev_mwhgsmiaa): Same. + (__internal_ev_mwhgsmfaa): Same. + (__internal_ev_mwhgssfaa): Same. + +2002-07-29 David Edelsohn + + * varasm.c (assemble_variable): Narrow test for uninitialized + without BSS target support. + +2002-07-29 Nathan Sidwell + + * profile.c: Add file comment describing the overall algorithm and + structures. + (struct edge_info): Add comments. + (struct bb_info): Add comments. + * basic-block.h (EDGE_*): Add comments. + * doc/gcov.texi (Gcov Data Files): Document bit flags. + +2002-07-29 Bob Wilson + + * config/xtensa/elf.h, config/xtensa/linux.h + (TARGET_OS_CPP_BUILTINS): Define. + (CPP_PREDEFINES): Remove. + * config/xtensa/xtensa.h (TARGET_CPU_CPP_BUILTINS): Define. + (CPP_SPEC): Remove. + +2002-07-29 Zack Weinberg + + * gensupport.c: Include hashtab.h. + (insn_elision, condition_table, hash_c_test, cmp_c_test, + maybe_eval_c_test): New routines and data structures to + support insn elision. + (init_md_reader): Read and initialize the condition_table. + (read_md_rtx): Discard insn patterns whose C test is provably + always false. + * gensupport.h: Declare new functions and data structures. + + * genconditions.c, dummy-conditions.c: New files. + * Makefile.in: Build genconditions; run it to construct + insn-conditions.c; build that and link it into most gen* + programs. + (HOST_SUPPORT, HOST_EARLY_SUPPORT): New variables. + (GEN): Delete, unused. + (STAGESTUFF): Update. + + * gencodes.c: (gen_insn): #define CODE_FOR_xxx equal to + CODE_FOR_nothing for all elided patterns. + (main): Tweaked to support this. + * genflags.c (gen_proto): Emit a static inline generator + function here for all elided patterns, which simply returns + NULL_RTX. + (gen_insn): Do not define HAVE_xxx for elided patterns. + (main): Tweaked to support this. No need to forward-declare + struct rtx_def. + * genrecog.c: Do not bother emitting the C test if it's known + to be true at compile time. + +2002-07-29 Mike Stump + + * config.gcc (target_gtfiles): Initialize, as otherwise cross + compilers hosted on powerpc-apple-darwin6.0 won't even build. + +2002-07-29 Richard Earnshaw + + * arm.md (sibcall, sibcall_value): Add RETURN as part of the pattern, + remove clobber of LR. + (sibcall_insn, sibcall_value_insn): Update accordingly. + (sibcall_epilogue): Remove debugging comment from assembler stream. + +2002-07-29 Gabriel Dos Reis + + * pretty-print.h: Define more macros. + * diagnostic.h (output_formatted_integer): Moved from... + * diagnostic.c: ... here. + +2002-07-28 Kaveh R. Ghazi + + * stormy16.h (ASM_OUTPUT_SYMBOL_REF): Use ASM_OUTPUT_LABEL_REF. + +2002-07-28 Zack Weinberg + + * defaults.h (ASM_OUTPUT_MEASURED_SIZE): Take only two + arguments. Always use ".-symbol" as expression argument. + * doc/tm.texi: Update to match. Document requirement for + ".size symbol, .-symbol" to be acceptable to assembler. + + * config/elfos.h, config/netbsd-aout.h, config/openbsd.h, + config/arm/elf.h, config/avr/avr.h, config/cris/aout.h, + config/i386/freebsd-aout.h, config/i386/sco5.h, + config/ip2k/ip2k.h, config/m88k/m88k.h, config/xtensa/elf.h, + config/xtensa/linux.h: Update uses of ASM_OUTPUT_MEASURED_SIZE. + +2002-07-28 Kaveh R. Ghazi + + * Makefile.in (gengtype-lex.c): Fix error in last change. + + * alpha/freebsd.h (TARGET_OS_CPP_BUILTINS): Add missing + backslash. + + * Makefile.in (vmsdbgout.o): Depend on function.h. + + * vmsdbgout.c: Include function.h. + +2002-07-28 Alan Modra + + * prefix.c (update_path): Don't strip single `.' path components + unless stripping a later `..' component. Exit loop as soon as + a valid path is found. + +2002-07-27 Roger Sayle + + * builtins.def [DEF_GCC_BUILTIN]: Require an explicit ATTRS + argument. Mark BUILT_IN_RETURN, BUILT_IN_EH_RETURN, + BUILT_IN_LONGJMP and BUILT_IN_TRAP as noreturn, the ISO C99 + floating point unordered comparisons (e.g. __builtin_isgreater) + as const, and leave the remaining GCC_BUILTINs unchanged. + + * c-decl.c (builtin_function): No need to explicitly mark + BUILT_IN_RETURN and BUILT_IN_EH_RETURN as noreturn. + +2002-07-27 Roger Sayle + + * Makefile.in: rtlanal.o now depends upon real.h. + + * flags.h [flag_signaling_nans]: New flag. + [HONOR_SNANS]: New macro. + + * toplev.c [flag_signaling_nans]: Initialize to false. + (f_options): Add processing for "-fsignaling-nans". + (set_fast_math_flags): Clear flag_signaling_nans with -ffast-math. + (process_options): flag_signaling_nans implies flag_trapping_math. + + * c-common.c (cb_register_builtins): Define __SUPPORT_SNAN__ + when -fsignaling-nans. First step to implementing WG14's N965. + + * fold-const.c (fold) [MULT_EXPR]: Conditionalize transforming + 1.0 * x into x, and -1.0 * x into -x on !HONOR_SNANS. + [RDIV_EXPR]: Conditionalize x/1.0 into x on !HONOR_SNANS. + + * simplify-rtx.c (simplify_relational_operation): Conditionalize + transforming abs(x) < 0.0 into false on !HONOR_SNANS. + + * rtlanal.c: #include real.c for TARGET_FLOAT_FORMAT definitions + required by HONOR_SNANS. (may_trap_p): Floating point DIV, MOD, + UDIV, UMOD, GE, GT, LE, LT and COMPARE may always trap with + -fsignaling_nans. EQ and NE only trap for flag_signaling_nans + not flag_trapping_math (i.e. HONOR_SNANS but not HONOR_NANS). + + * doc/invoke.texi: Document new -fsignaling-nans compiler option. + +2002-07-27 Kaveh R. Ghazi + + * Makefile.in (gengtype-lex.c): Work around a bug in flex. + * gengtype-lex.l (YY_USE_PROTOS): Undef. + (YY_DECL): Define. + +2002-07-27 Roger Sayle + + * doc/invoke.texi: Document that both -fno-builtin-foo and + -fno-builtin are supported by the g++ front-end. + +2002-07-27 Stan Shebs + + * configure.in: Rename config_gtfiles to target_gtfiles. + * configure: Regenerate. + * doc/gty.texi: Update reference. + * config.gcc (powerpc-*-darwin*): Set target_gtfiles + instead of appending to it. + +2002-07-25 Aldy Hernandez + + * config/rs6000/rs6000.c (function_arg_advance): SPE vararg + vectors are split into two registers. + (function_arg): Same. + +Thu Jul 26 23:00:13 2002 J"orn Rennecke + + * pa.md (extv): Check predicates before emitting extv_32. + +2002-07-27 Alan Modra + + * config/rs6000/rs6000.c (rs6000_traceback_name): New var. + (rs6000_traceback): New var. + (rs6000_override_options): Set rs6000_traceback. + (rs6000_output_function_epilogue): Implement traceback options. + * config/rs6000/rs6000.h (TARGET_OPTIONS): Add "traceback=". + (rs6000_traceback_name): Declare. + + * config/rs6000/rs6000.c (output_profile_hook): Don't generate profile + label reference when NO_PROFILE_COUNTERS. + +2002-07-26 Jason Merrill + + * function.c (assign_parms): Handle frontend-directed pass by + invisible reference. + +2002-07-26 Neil Booth + + * doc/cppopts.texi: Update. + +2002-07-26 Neil Booth + + * cppmacro.c (_cpp_create_definition): Don't attempt redefinition + warnings on assertions. + +2002-07-26 Neil Booth + + * c-common.h (RID_AND, RID_AND_EQ, RID_NOT, RID_NOT_EQ, + RID_OR, RID_OR_EQ, RID_XOR, RID_XOR_EQ, RID_BITAND, RID_BITOR, + RID_COMPL): Remove. + * c-parse.in (rid_to_yy): Similarly. + +2002-07-26 Jason Merrill + + * c-dump.c: Resurrect. + * tree-dump.c: Move C-specific stuff to c-dump.c. + * c-common.h: Declare c_dump_tree. + * c-lang.c (LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN): Define. + * Makefile.in (C_AND_OBJC_OBJS): Add c-dump.o. + (c-dump.o): New rule. + +2002-07-26 Alan Modra + + * config/rs6000/rs6000.md: Enable patterns using rlwinm for + PowerPC64. Replace "T" and "S" constraints with "n" when the + predicate will do. Formatting fixes. + (extzvsi_internal2): Use "andi.", "andis." and attr type of "compare" + as for extzvsi_internal1. + +2002-07-25 Neil Booth + + * dwarfout.c (VERSION_ASM_OP, DERIV_BEGIN_LABEL_FMT, + DERIV_END_LABEL_FMT): Remove. + (SL_BEGIN_LABEL_FMT, SL_END_LABEL_FMT): Move. + +2002-07-25 Neil Booth + + * objc/objc-act.c (UTAG_STATICS, UTAG_PROTOCOL_LIST, USERTYPE): + Remove. + +2002-07-25 Stan Shebs + + * config/rs6000/rs6000.c (rs6000_emit_prologue): Remove unused + local var dwarfp. + (output_compiler_stub): Remove unused locals. + (output_call): Always initialize line number. + +Thu Jul 25 20:34:50 2002 J"orn Rennecke + + * sh.h (LOAD_EXTEND_OP): QImode zero-extends on SHmedia. + * sh.md (truncdiqi2, movqi_media): Likewise. + +2002-07-25 Neil Booth + + * gcse.c (obstack_chunk_alloc): Remove. + (gcse_alloc): Fix to count allocated bytes. + * collect2.c (SYMBOL__MAIN): Remove. + +2002-07-25 Neil Booth + + * gcc.c (TARGET_EXECUTABLE_SUFFIX): Only used if + HAVE_TARGET_EXECUTABLE_SUFFIX. + +Thu Jul 25 18:57:50 2002 J"orn Rennecke + + * rtl.h (mem_attrs): Spell out more clearly the roles of ALIGN, + SIZE, EXPR and OFFSET. + +2002-07-25 Richard Henderson + + * emit-rtl.c (set_mem_attributes): Fix size and alignment thinkos + in ARRAY_REF of DECL_P case. + +2002-07-25 Richard Sandiford + + * doc/invoke.texi: Document -mabi=meabi, and expand on the EABI + description. Document -mips32, -mips64, and the associated -march + values. Describe the "mipsN" arguments to -march. Say that the + -mipsN options are equivalent to -march. Reword the description + of default type sizes. + * toplev.h (target_flags_explicit): Declare. + * toplev.c (target_flags_explicit): New var. + (set_target_switch): Update target_flags_explicit. + * config/mips/abi64.h (SUBTARGET_TARGET_OPTIONS): Undefine. + * config/mips/elf64.h (MIPS_ISA_DEFAULT): Undefine. + * config/mips/iris6.h (SUBTARGET_ASM_SPEC): -mabi=64 implies -mips3. + * config/mips/isa3264.h (MIPS_ENABLE_EMBEDDED_O32): Undefine. + * config/mips/mips.h (mips_cpu_info): New struct. + (mips_cpu_string, mips_explicit_type_size_string): Remove. + (mips_cpu_info_table, mips_arch_info, mips_tune_info): Declare. + (MIPS_CPP_SET_PROCESSOR): New macro. + (TARGET_CPP_BUILTINS): Declare a macro for each supported processor. + Define _MIPS_ARCH and _MIPS_TUNE. + (MIPS_ISA_DEFAULT): Don't provide a default value. Instead... + (MIPS_CPU_STRING_DEFAULT): Set to "from-abi" if neither it nor + MIPS_ISA_DEFAULT were already defined. + (MULTILIB_DEFAULTS): Add MULTILIB_ABI_DEFAULT. + (TARGET_OPTIONS): Remove -mcpu and -mexplicit-type-size. + (ABI_NEEDS_32BIT_REGS, ABI_NEEDS_64BIT_REGS): New. + (GAS_ASM_SPEC): Remove -march, -mcpu, -mgp* and -mabi rules. + (ABI_GAS_ASM_SPEC): Remove. + (MULTILIB_ABI_DEFAULT, ASM_ABI_DEFAULT_SPEC): New macros. + (ASM_SPEC): Add -mgp32, -mgp64, -march, -mabi=eabi and -mabi=o64. + Invoke %(asm_abi_default_spec) if no ABI was specified. + (CC1_SPEC): Remove ISA -> register-size rules. + (EXTRA_SPECS): Remove abi_gas_asm_spec. Add asm_abi_default_spec. + * config/mips/mips.c (mips_arch_info, mips_tune_info): New vars. + (mips_cpu_string, mips_explicit_type_size_string): Remove. + (mips_cpu_info_table): New array. + (mips_set_architecture, mips_set_tune): New fns. + (override_options): Rework to make -mipsN equivalent to -march. + Detect more erroneous cases, including those removed from CC1_SPEC. + Don't change the ABI based on architecture, or vice versa. + Unify logic with GAS. + (mips_asm_file_start): Get architecture name from mips_arch_info. + (mips_strict_matching_cpu_name_p, mips_matching_cpu_name_p): New fns. + (mips_parse_cpu): Take the name of the option as argument. Handle + 'from-abi'. Raise an error if the option is wrong. + (mips_cpu_info_from_isa): New fn. + +2002-07-25 Richard Sandiford + + * config/mips/mips.md (tablejump_mips161): Use gen_rtx_LABEL_REF. + (tablejump_mips162): Likewise. + +Thu Jul 25 10:23:41 2002 J"orn Rennecke + + * simpify-rtx.c (simplify_subreg): Don't pass MODE_CC mode to + int_mode_for_mode. + +2002-07-25 Gabriel Dos Reis + + * c-common.c (c_sizeof_or_alignof_type): Take a third argument for + complaining. + * c-common.h (c_sizeof): Adjust definition. + (c_alignof): Likewise. + * c-tree.h (c_sizeof_nowarn): Now macro. + * c-typeck.c (c_sizeof_nowarn): Remove definition. + +2002-07-25 Neil Booth + + * c-decl.c (c_decode_option): No need to handle switches + cpplib handles. + +2002-07-24 Zack Weinberg + + * defaults.h (ASM_OUTPUT_TYPE_DIRECTIVE, ASM_OUTPUT_SIZE_DIRECTIVE, + ASM_OUTPUT_MEASURED_SIZE): New default definitions of new macros. + * doc/tm.texi: Document them. Also document SIZE_ASM_OP, + TYPE_ASM_OP, and TYPE_OPERAND_FMT. + + * config/elfos.h, config/netbsd-aout.h, config/openbsd.h, + config/alpha/elf.h, config/arm/elf.h, config/avr/avr.h, + config/cris/aout.h, config/i386/freebsd-aout.h, + config/i386/sco5.h, config/ia64/ia64.c, config/ip2k/ip2k.h, + config/m68k/m68kelf.h, config/m68k/m68kv4.h, config/m88k/m88k.h, + config/mcore/mcore-elf.h, config/mips/elf.h, config/mips/elf64.h, + config/mips/iris6.h, config/mips/linux.h, config/pa/pa-linux.h, + config/pa/pa64-hpux.h, config/rs6000/sysv4.h, + config/xtensa/elf.h, config/xtensa/linux.h: + Use the new macros. + Where possible, remove redundant definitions of SIZE_ASM_OP, + TYPE_ASM_OP, and TYPE_OPERAND_FMT. + 2002-07-24 Aldy Hernandez * config/rs6000/eabi.h: Define TARGET_SPE_ABI, TARGET_SPE, TARGET_ISEL, and TARGET_FPRS. - + * doc/invoke.texi (RS/6000 and PowerPC Options): Document -mabi=spe, -mabi=no-spe, and -misel=. @@ -17,7 +520,7 @@ (*ne0): Same. (negsf2): Change to expand and rename old pattern to *negsf2. (abssf2): Change to expand and rename old pattern to *abssf2. - + New expanders: fix_truncsfsi2, floatunssisf2, floatsisf2, fixunssfsi2. @@ -134,7 +637,7 @@ (rs6000_builtins): Add SPE builtins. * testsuite/gcc.dg/ppc-spe.c: New. - + * config/rs6000/eabispe.h: New. * config/rs6000/spe.h: New. @@ -315,7 +818,7 @@ Tue Jul 23 21:49:24 2002 J"orn Rennecke (LARGEST_EXPONENT_IS_NORMAL): Ditto. (VAX_HALFWORD_ORDER): Define (1 for DEC VAX, 0 otherwise). (TARGET_G_FLOAT): Default to 0 if not defined. - (ieeetoe): New, common routine to convert target format floats + (ieeetoe): New, common routine to convert target format floats to internal form. (e24toe, e53toe): Change to use ieeetoe, distinguish DEC vs. others. @@ -515,7 +1018,7 @@ Mon Jul 22 15:27:25 2002 J"orn Rennecke * gengenrtl.c (gencode): Don't define obstack_alloc_rtx. * function.c (SYMBOL__MAIN): Remove definition. * global.c (SET_CONFLICT, REGBITP, ALLOCNO_LIVE_P): Remove. - * predict.c (PROB_NEVER, PROB_LIKELY, PROB_UNLIKELY): Remove. + * predict.c (PROB_NEVER, PROB_LIKELY, PROB_UNLIKELY): Remove. * profile.c (GCOV_INDEX_TO_BB): Remove. * sched-rgn.c (ABS_VALUE, MIN_DIFF_PRIORITY, MIN_PROB_DIFF): Remove. * simplify-rtx.c (FIXED_BASE_PLUS_P): Remove. @@ -558,7 +1061,7 @@ Sun Jul 21 21:36:41 CEST 2002 Jan Hubicka 2002-07-21 Andreas Jaeger - * reload1.c (fixup_abnormal_edges): Remove unused variable. + * reload1.c (fixup_abnormal_edges): Remove unused variable. 2002-07-21 Bernd Schmidt