changelog

gcc-2.95.3 Linux下最常用的C编译器

Fri Mar 16 12:46:19 GMT 2001 Bernd Schmidt  ([e-mail])

	* gcc-2.95.3 Released.

Mon Mar 13 01:00:55 2000  Toon Moene  <[e-mail]>

	* stw.h (struct _ffestw_): Change type of uses_ to int.

Fri Feb 18 13:36:50 2000  Martin von Loewis  <[e-mail]>

	* g77spec.c (lang_specific_driver): Use GCCBUGURL.

Sun Oct 24 23:54:10 PDT 1999 Jeff Law  ([e-mail])

	* gcc-2.95.2 Released.

Mon Aug 16 01:29:24 PDT 1999 Jeff Law  ([e-mail])

	* gcc-2.95.1 Released.

Thu Aug  5 02:40:42 1999  Jeffrey A Law  ([e-mail])

        * g77spec.c: Update URLS and mail addresses.
        * root.texi: Update URLS and mail addresses.

Wed Jul 28 21:39:31 PDT 1999 Jeff Law  ([e-mail])

	* gcc-2.95 Released.

	* version.c: No longer a prerelease.

Sat Jul 17 21:57:07 1999  Jeffrey A Law  ([e-mail])

	* root.texi: Clear DEVEOPMENT per Craig's instructions.

1999-07-17  Alexandre Oliva  <[e-mail]>
        
	* root.texi: Update e-mail addresses to gcc.gnu.org.
	* g77spec.c (lang_specific_driver): Updated URL with bug reporting 
	instructions to gcc.gnu.org.  Removed e-mail address.

Sat Jul 17 11:28:43 1999  Craig Burley  <[e-mail]>

	* root.texi, g77install.texi: Switchover to GCC terminology.
	Also, FSF-G77 had been mistakenly set at some point.

Thu Jul  8 15:38:50 1999  Craig Burley  <[e-mail]>

	* news.texi: Describe DATE intrinsic fix.

Tue Jun 29 10:10:25 1999  Craig Burley  <[e-mail]>

	* bugs.texi: Undo Friday's change, as there's now a fix
	available from netlib.
	* news.texi: Document the fix.

Mon Jun 28 10:43:11 1999  Craig Burley  <[e-mail]>

	* com.c (ffecom_prepare_expr_): A COMPLEX intrinsic needs
	a temp even if -fno-f2c.

	* version.c: Bump version.

Fri Jun 25 11:06:32 1999  Craig Burley  <[e-mail]>

	* bugs.texi: Describe K(5)=10*3 NAMELIST-read bug.

Mon Jun 21 12:40:17 1999  Gerald Pfeifer  <[e-mail]>

	* g77.texi: Update links.

Wed Jun 16 11:43:02 1999  Craig Burley  <[e-mail]>

	* news.texi: Mention BACKSPACE fix to libg2c.

Mon Jun  7 08:42:40 1999  Craig Burley  <[e-mail]>

	* Make-lang.in: Any target using libsubdir must depend
	on installdirs.

Sat Jun  5 23:50:36 1999  Craig Burley  <[e-mail]>

	* g77.texi: Describe a few more missing features people
	have emailed me about.

Sat Jun  5 17:03:23 1999  Craig Burley  <[e-mail]>

	From Dave Love to egcs-patches on 20 May 1999 17:38:38 +0100:
	* g77.texi: Clean up fossil text vis-a-vis Intel CPUs.

Fri Jun  4 13:56:56 1999  Craig Burley  <[e-mail]>

	* Make-lang.in: Use libsubdir, not prefix, to store
	temporary lang-f77 `flag' file.

Fri Jun  4 10:26:04 1999  Craig Burley  <[e-mail]>

	* news.texi (News): Mention GCC 2.95 in favor of EGCS 1.2.
	Mention that libg2c is multilibbed.

Fri Jun  4 10:09:50 1999  Craig Burley  <[e-mail]>

	* g77.texi (Missing Features): Add `Better Warnings'
	item.

Fri May 28 16:51:41 1999  Craig Burley  <[e-mail]>

	* g77.texi: Fix thinko.

Wed May 26 14:43:27 1999  Craig Burley  <[e-mail]>

	* news.texi: Document Tue May 18 03:52:04 1999 patch.
	Fix a grammo.

Wed May 26 14:25:07 1999  Craig Burley  <[e-mail]>

	* g77.texi, news.texi, root.texi, version.c: Start renaming
	EGCS 1.2 to GCC 2.95, and start using 0.5.25 to designate
	the version of g77 within GCC 2.95.

Wed May 26 11:45:21 1999  Craig Burley  <[e-mail]>

	Rename -fsubscript-check to -fbounds-check and
	-ff2c-subscript-check to -ffortran-bounds-check:
	* g77.texi: Rename options in docs, clarify usage.
	* lang-options.h: Rename options, clarify doclets.
	* news.texi: Rename options, don't bother with fortran-specific
	option.
	* top.c (ffe_decode_option): Rename recognized strings.

Tue May 25 18:21:09 1999  Craig Burley  <[e-mail]>

	* com.c (FFECOM_FASTER_ARRAY_REFS): Delete this vestige,
	now that -fflatten-arrays exists.

Tue May 25 17:48:34 1999  Craig Burley  <[e-mail]>

	Fix 19990525-0.f:
	* com.c (ffecom_arg_ptr_to_expr): Strip off parens around
	CHARACTER expression.
	(ffecom_prepare_expr_): Ditto.

Tue May 18 03:52:04 1999  Craig Burley  <[e-mail]>

	Support use of back end's improved open-coding of complex divide:
	* com.c (ffecom_tree_divide_): Use RDIV_EXPR for complex divide,
	instead of run-time call to [cz]_div, if `-Os' option specified.
	(lang_init_options): Tell back end we want support for wide range
	of inputs to complex divide.

	* Bump version.

Tue May 18 00:21:34 1999  Zack Weinberg  <[e-mail]>

	* lang-specs.h: Define __GNUC__ and __GNUC_MINOR__ only if -no-gcc
	was not given.

Thu May 13 12:23:20 1999  Craig Burley  <[e-mail]>

	Fix INTEGER*8 subscripts in array references:
	* com.c (ffecom_subscript_check_): Convert low, high, and
	element as necessary to make comparison work.
	(ffecom_arrayref_): Do more of the work.
	Properly handle subscript expr that's wider than int,
	if pointers are wider than int.
	(ffecom_expr_): Leave more work to ffecom_arrayref_.
	(ffecom_init_0): Record sizes of pointers and ints for
	convenience.
	Use set_sizetype etc. as done by gcc front end.
	(ffecom_ptr_to_expr): Leave more work to ffecom_arrayref_.
	* expr.c (ffeexpr_finished_): Don't convert INTEGER subscript
	expressions in run-time contexts.
	(ffeexpr_token_elements_, ffeexpr_token_substring_1_): Cope with
	non-default INTEGER subscript expressions.
	* news.texi: Announce.

	Finish accepting -fflatten-arrays option:
	* com.c (ffecom_arrayref_): Flatten references if requested.
	* g77.texi: Describe.
	* lang-options.h: Allow.
	* news.texi: Announce.
	* top.c, top.h: Recognize.

	* version.c: Bump version.

Wed May 12 07:30:05 1999  Craig Burley  <[e-mail]>

	* com.c (lang_init_options): Disable back end's maintenance
	of errno.
	* news.texi: Document dropping of errno.

1999-05-10 18:21 -0400  Zack Weinberg  <[e-mail]>

	* lang-specs.h: Pass -$ to the preprocessor.

Mon May 10 18:14:28 1999  Craig Burley  <[e-mail]>

	* g77.texi: Fix various @xref's per proper style.
	Go ahead and use nested braces in @xref's, with care.
	* g77install.texi: Fix @xref per proper style.

Mon May 10 17:38:39 1999  Craig Burley  <[e-mail]>

	* news.texi: Doc upgrade to netlib libf2c as of today.

Sun May  9 18:52:13 1999  Hans-Peter Nilsson  <[e-mail]>

	* f/g77spec.c (lang_specific_driver): Correct bug-report address
	and point to the FAQ.

Thu May  6 12:40:21 1999  Craig Burley  <[e-mail]>

	* g77.texi (Arbitrary Concatenation): Put this under
	"Missing Features" instead of "Projects".
	(Internals Documentation): Point to new "Front End" chapter.

Thu May  6 08:23:52 1999  Craig Burley  <[e-mail]>

	* bugs.texi, news.texi: Automatic arrays reportedly working
	on HP-UX systems.

Thu May  6 08:19:31 1999  Craig Burley  <[e-mail]>

	* g77.texi (Advantages Over f2c): Expand on this topic.

Mon May  3 19:41:48 1999  Craig Burley  <[e-mail]>

	* com.c (ffecom_expr_intrinsic_): Fix test of CTIME_subr.

Mon May  3 18:11:48 1999  Craig Burley  <[e-mail]>

	Reverse order of two arguments to CTIME_subr, DTIME_subr,
	ETIME_subr, and TTYNAM_subr:
	* com.c (ffecom_expr_intrinsic_): Reverse the arguments.
	While at it, set TREE_SIDE_EFFECTS for CTIME_subr and
	TTYNAM_subr.
	* intdoc.in: Document the new calling sequences.
	* intrin.def: Reverse the arguments.
	* news.texi: Document the fact that they changed.
	* version.c: Bump version.

Mon May  3 11:28:14 1999  Craig Burley  <[e-mail]>

	* news.texi: Doc upgrade to netlib libf2c as of today.

Sun May  2 17:04:28 1999  Craig Burley  <[e-mail]>

	* version.c: Bump version.

Sun May  2 16:53:01 1999  Craig Burley  <[e-mail]>

	Fix compile/19990502-1.f:
	* ste.c (ffeste_R819B): Don't overwrite tree for temp
	variable when expanding the assignment into it.

Sun Apr 25 20:55:10 1999  Craig Burley  <[e-mail]>

	Fix 19990325-0.f and 19990325-1.f:
	* com.c (ffecom_possible_partial_overlap_): New function.
	(ffecom_expand_let_stmt): Use it to determine whether to assign
	to a COMPLEX operand through a temp.
	* news.texi: Document fix.

	* version.c: Bump version.

Sat Apr 24 12:19:53 1999  Craig Burley  <[e-mail]>

	* expr.c (ffeexpr_finished_): Convert DATA implied-do
	start/end/incr expressions to default INTEGER.
	Fix some broken conditionals.
	Clean up some code in the region.
	* news.c: Document the fix.

	* version.c: Bump version.

Fri Apr 23 02:08:32 1999  Craig Burley  <[e-mail]>

	* g77.texi (Compiler Prototypes): Replace "missing" subscript-
	checking option with something else.

Fri Apr 23 01:48:28 1999  Craig Burley  <[e-mail]>

	Support new -fsubscript-check and -ff2c-subscript-check options:
	* com-rt.def (FFECOM_gfrtRANGE): Describe s_rnge, in libf2c/libF77.
	* com.c (ffecom_subscript_check_, ffecom_arrayref_): New functions.
	(ffecom_char_args_x_): Use new ffecom_arrayref_ function for
	FFEBLD_opARRAYREF case.
	Compute character name, array type, and	use new
	ffecom_subscript_check_ function for FFEBLD_opSUBSTRING case.
	(ffecom_expr_): Use new ffecom_arrayref_ function.
	(ffecom_ptr_to_expr): Use new ffecom_arrayref_ function.
	* g77.texi, news.texi: Document new options.
	* top.c, top.h: Support new options.

	* news.texi: Fix up some items to not be in "User-Visible Changes".

	* ste.c (ffeste_R819B): Fix type for loop variable, to avoid
	warnings.

	* version.c: Bump version.

Tue Apr 20 01:38:57 1999  Craig Burley  <[e-mail]>

	* bugs.texi, news.texi: Clarify -malign-double situation.

Tue Apr 20 01:15:25 1999  Craig Burley  <[e-mail]>

	* stb.c (ffestb_R5282_): Convert DATA repeat count
	to default INTEGER, to avoid problems downstream.

	* version.c: Bump version.

Mon Apr 19 21:36:48 1999  Craig Burley  <[e-mail]>

	* ste.c (ffeste_R819B): Start the loop before expanding
	the termination expression.

	* version.c: Bump version.

Sun Apr 18 21:53:58 1999  Craig Burley  <[e-mail]>

	* com.c (ffecom_sym_transform_): COMMON and EQUIVALENCE
	variables have constant addresses (EQUIVALENCE only if
	containing aggregate is static).

Sat Apr 17 16:55:59 1999  Craig Burley  <[e-mail]>

	* bugs.texi, ffe.texi, g77.texi, g77install.texi, news.texi:
	Clean up @code{} vs. @samp{}.
	Clean up dashes (`--') vs. @minus{} vs. `---'.

	* ffe.texi: Add copyright header.

	* g77.texi, lang-options.h, news.texi, top.c (ffe_decode_option):
	Remove support for -fugly option.
	Clarify that -fugly-logint is needed instead of -fugly
	to work around using .EQ./.NE. on LOGICAL operands.
	Explain more about why -fugly-logint is bad juju.

	* g77.texi (Missing Features): Describe READONLY as a missing
	feature.  Describe AUTOMATIC better.

	* news.texi: Mention libf2c upgrade.

Sat Apr 17 14:05:53 1999  Craig Burley  <[e-mail]>

	Make a place for front-end internals documentation:
	* Make-lang.in (f/g77.info, f/g77.dvi): Depend on f/ffe.texi.
	* ffe.texi: New file, containing docs on front-end internals.
	* g77.texi: New chapter for, and inclusion of, ffe.texi.

	* g77.texi: Fix an index entry.

Sat Apr 17 13:53:43 1999  Craig Burley  <[e-mail]>

	Rewrite to use block/scope structure of GBE and to ensure
	variables (especially those going on stack/reg) are declared
	before executable code generated:
	* bld.c (ffebld_new_item, ffebld_new_one, ffebld_new_two):
	Support new hooks.
	* bld.h (ffebld_item_hook, ffebld_item_set_hook,
	ffebld_nonter_hook, ffebld_nonter_set_hook): Ditto.
	* bld.h (ffebld_basictype, ffebld_kind, ffebld_kindtype,
	ffebld_rank, ffebld_where): New convenience macros (used
	by rest of this patch).
	* com.c, com.h (ffecom_push_calltemps, ffecom_pop_calltemps,
	ffecom_push_tempvar, ffecom_pop_tempvar): Remove temp-var-
	handling mechanism.
	* com.c (ffecom_call_, ffecom_call_binop_, ffecom_tree_divide_,
	ffecom_call_gfrt): Support passing hooks for temp-var info.
	(ffecom_expr_power_integer_): Takes opPOWER expression, instead
	of its left and right operands, so it can get at the hook.
	(ffecom_prepare_let_char_, ffecom_prepare_arg_ptr_to_expr,
	ffecom_prepare_end, ffecom_prepare_expr_, ffecom_prepare_expr_rw,
	ffecom_prepare_expr_w, ffecom_prepare_return_expr,
	ffecom_prepare_ptr_to_expr): New functions supporting expression
	pre-scanning.
	(bison_rule_compstmt_): Return the tree, as in the CFE.
	(delete_block): New function, from CFE.
	(kept_level_p): New function, from CFE, modified.
	(ffecom_start_compstmt, ffecom_end_compstmt): New functions,
	replacing ffecom_start_compstmt_ and ffecom_end_compstmt_ macros,
	and they do real work.
	(struct binding_level): Add prep_state member.  Initialize to 0.
	(ffecom_get_invented_identifier): Now takes either or both a
	string and an integer, using -1 to denote no integer.
	(ffecom_do_entry_): Disallow temp-var generation via expressions
	in body of function, since the exprs aren't prescanned.
	(ffecom_expr_rw): Now takes destination tree.
	(ffecom_expr_w): New function, now used in some places
	ffecom_expr_rw had been used.
	(ffecom_expr_intrinsic_): Move huge f2c-related comment to bottom
	of source file, to avoid annoying problems editing com.c using
	Emacs C-mode.
	(ffecom_expr_power_integer_): Make a temp var for division, if
	necessary.
	Handle expanded statement expression as does CFE.
	(ffecom_start_progunit_): Disallow temp-var generation in body
	of function, since expressions are not prescanned at this level.
	(ffecom_sym_transform_): Transform ASSIGN variables as well,
	so these are all transformed up front, before code-generation
	begins.
	(ffecom_arg_ptr_to_const_expr, ffecom_const_expr,
	ffecom_ptr_to_const_expr): New functions to transform expressions
	only if the results will surely be constants.
	(ffecom_arg_ptr_to_expr): Precompute size, for convenience
	obtaining temp vars.
	(ffecom_expand_let_stmt): Guess at usability of destination
	pre-expansion, to provide better prescan preparation (fewer
	spurious temp vars).
	(ffecom_init_0): Disallow temp-var generation in global scope.
	(ffecom_type_expr): New function, returns just the type tree
	for the expression.
	(start_function): Disallow temp-var generation in parm scope.
	(incomplete_type_error): Fix introductory comment.
	(poplevel): Update (somewhat) from CFE.
	(pushlevel): Update (somewhat) from CFE.
	* stc.c (ffestc_R838): Mark ASSIGNed variable as so.
	* std.c (ffestd_stmt_pass_, ffestd_R803, ffestd_R804, ffestd_R805,
	ffestd_R806): Remember and pass through the ffestw block info
	for these (IFTHEN, ELSEIF, ELSE, and ENDIF) statements.
	* ste.c (ffeste_end_iterdo_): Now takes ffestw block argument.
	(ffeste_io_inlist_): Add prototype.
	(ffeste_f2c_*): Macros rewritten, new ones added.
	(ffeste_start_block_, ffeste_end_block_, ffeste_start_stmt_,
	ffeste_end_stmt_): New macros/functions, depending on whether
	checking is enabled, to keep track of symmetry of other ste.c code.
	(ffeste_begin_iterdo_, ffeste_end_iterdo_, ffeste_io_impdo_,