parse.y (patch_if_else_statement): If the condition is constant, optimize away the...

[thirdparty/gcc.git] / gcc / ada / ChangeLog

2001-10-11  Pascal Obry <obry@gnat.com>

	* Makefile.in:
	(GNAT_ADA_OBJS): add g-crc32.o, a-tags.o, a-stream.o
	(GNATBIND_OBJS): add g-crc32.o, a-tags.o, a-stream.o
	(GNATLS_RTL_OBJS): add g-crc32.o
	(GNATMAKE_RTL_OBJS): add g-crc32.o
	
	* ali-util.adb:
	(CRC_Match): new function.
	(Get_File_Checksum): renamed Get_File_CRC. Use the GNAT.CRC32 unit 
	instead of the previous simple checksum algorithm.
	(Time_Stamp_Mismatch): use CRC_Match for comparison.
	(Set_Source_Table): idem.
	
	* ali-util.ads:
	(Get_File_Checksum): renamed Get_File_CRC as now we compute CRC 
	instead of simple checksum.
	(CRC_Match): new function.
	(CRC_Error): new constant.
	
	* ali.adb (Scan_ALI): rename variable Chk to CRC as we are handling 
	a CRC now and not a simple checksum. A CRC uses lower-case hex 
	letters, fixes ambiguity in parsing.
	
	* ali.ads (Sdep_Record.Checksum): renamed Sdep_Record.CRC as this 
	is what this variable will store.
	
	* bcheck.adb: Change reference to chechsum in comments by CRC.
	(Check_Consistency): Rename Get_File_Checksum to Get_File_CRC. 
	rename All_Checksum_Match to All_CRC_Match. Change due to API 
	renaming since now GNAT does not use a simple checksum but a 
	CRC using GNAT.CRC32.
	
	* gnatls.adb: Rename Checksum to CRC in many places, we use a CRC 
	now and not anymore a simple checksum.
	
	* lib-load.adb: Use Source_CRC instead of Source_Checksum in many 
	places.
	
	* lib-writ.adb (Write_ALI): Use Source_CRC instead of Source_Checksum.
	
	* scans.adb:
	(Restore_Scan_State): rename Checksum to CRC.
	(Save_Scan_State): idem.
	
	* scans.ads:
	With GNAT.CRC32.
	(Checksum): rename to CRC.
	(Saved_Scan_State): Save_Checksum field renamed to Save_CRC
	
	* scn-nlit.adb: Rename many Accumulate_Checksum to Update (from 
	GNAT.CRC32).  Update copyright notice.
	
	* scn-slit.adb: Rename many Accumulate_Checksum to Update (from 
	GNAT.CRC32).  Update copyright notice.
	
	* scn.adb:
	(Accumulate_Checksum): removed.
	(Update): new procedure. Add a wide-character into the CRC.
	
	* sinput-l.adb:
	(Complete_Source_File_Entry): use CRC32 instead of simple checksum.
	(Load_File): fix initialization of S (change Source_Checksum to 
	Source_CRC)
	
	* sinput-p.adb (Load_Project_File): rename Source_Checksum to 
	Source_CRC in S initialization.
	
	* sinput.adb (Source_Checksum): renamed to Source_CRC.
	
	* sinput.ads (Source_Checksum): renamed to Source_CRC.
	Update comments for the CRC.
	
	* types.adb (Hex): Use lowercase for the letter part.
	
	* types.ads (Get_Hex_String): Returns the hexadecimal representation 
	for a word. This is currently used only for CRC. In previous version, 
	the checksum was using a representation with all letter being 
	upper-case. With the new implementation (using CRC) we do not remove 
	the 32th bit of the CRC, so we can have an upper-case starting letter 
	in the CRC. This is not possible to parse in Scan_ALI (ali.adb). 
	It is ambigous since the CRC was optional and could be followed by 
	options like EB, EE. So now this routines uses lower-case letter for 
	the hexadecimal representation. Strange enough only lower case letters 
	where checked in Scan_ALI (even if this was not a possible case).
	
	* gnatvsn.ads (Library_Version): changed to 3.15a.
	
	* s-crc32.ads: Initial version from GNAT.CRC32. This is the version 
	for the compiler.
	
	* s-crc32.adb: Initial version from GNAT.CRC32. This is the version 
	for the compiler.
	
	* ali-util.adb: Redo previous change to avoid using word CRC everywhere
	Add 2001 to copyright notice
	(Accumulate_Checksum): Modify to use System.CRC32.
	
	* ali-util.ads: Redo changes of previous revision to continue to use 
	the word Checksum. Add 2001 to copyright notice.
	
	* ali.adb: Undo some of previous changes, not needed.
	Keep the change for lower case letters in the checksum.
	
	* ali.ads: Undo previous change not needed.

	* bcheck.adb: Undo most of previous change, not needed.
	But do use Checksums_Match for checksum comparison.
	
	* gnatls.adb: Undo most of previous change, not needed.
	But do use Checksums_Match for comparing checksums.
	
	* lib-load.adb: Undo previous change, not needed.
	
	* lib-writ.adb: Undo previous change, not needed.
	
	* lib-writ.ads: Document that checksums use lower case, 
	not upper case letters.
	
	* scans.adb: Undo previous change, not needed
	
	* scans.ads: Undo previous change, not needed.
	
	* scn-nlit.adb: Undo previous changes, not needed.
	
	* scn-slit.adb: Undo previous change, not needed.  Fix header format.
	
	* scn.adb:
	(Accumulate_Checksum): Use System.CRC32.
	(Initialize_Checksum): New procedure.
	Remove other changes of previous revision.
	
	* sinput-p.adb: Undo previous change, not needed.
	
	* sinput.adb: Undo previous change, not needed.

	* sinput-l.adb: Undo previous change, not needed.
	
	* sinput.ads: Undo previous change, not needed.  Keep only comment 
	on new checksum algorithm
	
	* Makefile.in: Add s-crc32 as needed, remove g-crc32.
	Also remove a-tags and a-stream from GNAT sources.
	
	* ali.adb (Scan_ALI): fix typo introduce in latest check-in.
	
	* Makefile.in (GNATRTL_NONTASKING_OBJS): Add g-crc32.o.

2001-10-11  Geert Bosch  <bosch@gnat.com>

	* einfo.h: Regenerate.

	* nmake.ads: Regenerate.

	* nmake.adb: Regenerate.

	* sinfo.h: Regenerate.

	* treeprs.adb: Regenerate.

2001-10-10  Geert Bosch  <bosch@gnat.com>

	* gnat-style.texi: New file describing coding guidelines for Ada.
	
2001-10-10  Ed Schonberg <schonber@gnat.com>

	* einfo.adb (Write_Entity_Flags): Elaboration_Entity_Required 
	is Flag174.

2001-10-10  Geert Bosch  <bosch@gnat.com>

	* snames.ads: Add new names for project facility.

	* snames.adb: Update to reflect snames.ads changes.

	* snames.h: Update to reflect snames.ads changes.

2001-10-10  Vincent Celier <celier@gnat.com>

	* make.adb:
	(Add_Switches): reflect the changes for the switches attributes
	Default_Switches indexed by the programming language,
	Switches indexed by the file name.
	(Collect_Arguments_And_Compile): Idem.
	Reflect the attribute name changes.
	
	* prj-attr.adb:
	(Initialisation_Data): Change the names of some packages and
	attributes.
	(Initialize): process case insensitive associative arrays.
	
	* prj-attr.ads:
	(Attribute_Kind): Remove Both, add Case_Insensitive_Associative_Array.
	
	* prj-dect.adb:
	(Parse_Attribute_Declaration): For case insensitive associative
	 arrays, set the index string to lower case.
	
	* prj-env.adb:
	Reflect the changes of the project attributes.
	
	* prj-nmsc.adb:
	Replace Check_Naming_Scheme by Ada_Check and
	Language_Independent_Check.
	
	* prj-nmsc.ads:
	Replaced Check_Naming_Scheme by 2 procedures:
	Ada_Check and Language_Independent_Check.
	
	* prj-proc.adb:
	(Process_Declarative_Items): For case-insensitive associative
	arrays, set the index string to lower case.
	(Recursive_Check): Call Prj.Nmsc.Ada_Check, instead of
	Prj.Nmsc.Check_Naming_Scheme.
	
	* prj-tree.adb:
	(Case_Insensitive): New function
	(Set_Case_Insensitive): New procedure
	
	* prj-tree.ads:
	(Case_Insensitive): New function
	(Set_Case_Insensitive): New procedure
	(Project_Node_Record): New flag Case_Insensitive.
	
	* prj-util.adb:
	(Value_Of): new function to get the string value of a single
	string variable or attribute.
	
	* prj-util.ads:
	(Value_Of): new function to get the string value of a single
	string variable or attribute.
	
	* prj.adb:
	(Ada_Default_Spec_Suffix): New function
	(Ada_Default_Impl_Suffix): New function
	Change definitions of several constants to reflect
	new components of record types.
	
	* prj.ads:
	(Naming_Data): Change several components to reflect new
	elements of naming schemes.
	(Project_Data): New flags Sources_Present and
	Language_Independent_Checked.
	(Ada_Default_Spec_Suffix): New function.
	(Ada_Default_Impl_Suffix): New function.
	
	* snames.ads:
	Modification of predefined names for project manager: added
	Implementation, Specification_Exceptions, Implementation_Exceptions,
	Specification_Suffix, Implementation_Suffix, Separate_Suffix,
	Default_Switches, _Languages, Builder, Cross_Reference,
	Finder. Removed Body_Part, Specification_Append, Body_Append,
	Separate_Append, Gnatmake, Gnatxref, Gnatfind, Gnatbind,
	Gnatlink.
	
	* prj.ads: (Ada_Default_Spec_Suffix, Ada_Default_Impl_Suffix):
	Add comments.
	
	* prj-nmsc.adb (Ada_Check): Test that Separate_Suffix is defaulted,
	not that it is Nil_Variable_Value.
	
	* prj.ads: Add ??? for uncommented declarations

2001-10-10  Ed Schonberg <schonber@gnat.com>

	* sem_prag.adb: (Analyze_Pragma, case External): If entity is a 
	constant, do not indicate possible modification, so that gigi can 
	treat it as a bona fide constant.

2001-10-10  Robert Dewar <dewar@gnat.com>

	* sem_prag.adb: Add processing for pragma External.
	
	* snames.ads: Add entry for pragma External.
	
	* par-prag.adb: Add pragma External.
	
	* snames.adb: Updated to match snames.ads.

2001-10-10  Ed Schonberg <schonber@gnat.com>

	* exp_ch4.adb (Expand_N_Allocator): Generate meaningful names for
	a dynamic task if the allocator appears in an indexed assignment
	or selected component assignment.
	
	* exp_util.adb (Build_Task_Array_Image, Build_Task_Record_Image): 
	For a dynamic task in an assignment statement, use target of 
	assignment to generate meaningful name.

2001-10-10  Ed Schonberg <schonber@gnat.com>

	* einfo.adb (Write_Field19_Name): Body_Entity is also defined for 
	a generic package.

	* einfo.ads: Body_Entity is also defined for generic package.
	Documentation change only
	
	* exp_aggr.adb (Build_Array_Aggr_Code): When expanding an 
	others_choice for a discriminated component initialization, 
	convert discriminant references into the corresponding discriminals. 
	
	* exp_ch3.adb (Get_Simple_Init_Val): Add qualification to aggregate 
	only if original type is private and expression has to be wrapped 
	in a conversion.
	
	* checks.adb: 
	(Apply_Constraint_Check): Do not perform length check 
	if expression is an aggregate with only an others_choice.
	(Length_N_Cond): two references to the same in_parameter 
	(typically the discriminal in an init_proc) denote the same value.
	Two useful optimization uncovered by bugfixes above.

2001-10-10  Robert Dewar <dewar@gnat.com>

	* xeinfo.adb: Change int to char in translation of enumeration types. 
	This fixes a problem in the C representation of component alignment.
	Add 2001 to copyright notice

2001-10-10  Richard Kenner <kenner@gnat.com>

	* decl.c: (validate_size): Do check size of object of integral type 
	if it is a packed array type.

2001-10-10  Richard Kenner <kenner@gnat.com>

	* decl.c: (gnat_to_gnu_entity, case object): Also materialize 
	VAR_DECL for constant if not Is_Public but -O0.

2001-10-10  Richard Kenner  <kenner@gnat.com>

	* misc.c (struct lang_hooks): Add new initializer to match GCC change.

2001-10-10  Geert Bosch  <bosch@gnat.com>

	* xnmake.adb (XNmake): Fix handling of -s/-b options.  No longer 
	use '/' as switch character, allowing for absolute file names.

2001-10-09  Joseph S. Myers  <jsm28@cam.ac.uk>

	* 4gintnam.ads, Make-lang.in, Makefile.in, config-lang.in: Update
	FSF address.

2001-10-08  Geert Bosch  <bosch@gnat.com>

	* Makefile.in (treeprs.ads, einfo.h, sinfo.h, nmake.adb, nmake.ads):
	Automatically build utilities when files need to be regenerated.

2001-10-08  Geert Bosch  <bosch@gnat.com>

	* xsnames.adb: New utility for updating snames.ads and snames.adb

2001-10-08  Zack Weinberg  <zack@codesourcery.com>

	* Make-lang.in (ADAFLAGS): Add -W -Wall.
	(ADA_FLAGS_TO_PASS): Set ADA_CFLAGS=$(CFLAGS) also.
	(gnat1): Also depend on attribs.o.
	(gnatlib, gnatlib-shared): Set CC and ADAC in recursive make.
	* Makefile.in (X_ADAFLAGS, T_ADAFLAGS): New.
	(ADAC): Set to @ADAC@ in stage1, $(CC) later.
	(ADAFLAGS): Add -W -Wall.
	(ALL_ADAFLAGS, MOST_ADAFLAGS): Add X_ADAFLAGS and T_ADAFLAGS;
	take out CFLAGS.

	(.adb.o, .ads.o, a-numaux.o, a-teioed.o, s-interr.o,
	s-taskin.o, sdefault.o, s-tasdeb.o, s-vaflop.o, a-except.o,
	s-assert.o, s-stalib.o, s-memory.o, memtrack.o, mlib-tgt.o):
	Use $(ADAC), not $(CC), as compilation command.

	(gnattools): Depend directly on tools to build, don't use
	recursive make.
	(gnatlib): Set ADA_CFLAGS=$(GNATLIBCFLAGS) in recursive make.

	* einfo.h, sinfo.h: New files (autogenerated).

2001-10-08  Richard Henderson  <rth@redhat.com>

	* comperr.adb (Abort_In_Progress): New.
	(Compiler_Abort): Use it to prevent recursion.

2001-10-08  Robert Dewar <dewar@gnat.com>

	* atree.adb: Set Error_Posted in Error node, helps error recovery.

	* par-endh.adb (Output_End_Expected): We should also not test
	Error_Posted on the Error node, since now it is always set.

	* cstand.adb (Create_Standard): Set Etype of Error to Any_Type
	to help error recovery. Part of general work on 9407-004.

	* par.adb: Add ??? for misuse of error

	* sem_res.adb:
	(Resolve): Defend against Error, fixes 9407-003.
	(Resolve_Discrete_Subtype_Indication): Defend against Error.

	* sinfo.ads (N_Error): Now has Etype field (which will be set
	to Any_Type to help error recovery).

2001-10-08  Richard Kenner (kenner@gnat.com)

	* misc.c (gnat_expand_expr, case UNCHECKED_CONVERT_EXPR):
	Consistently set MEM attributes from expression; fixes
	bootstrap failure on x86.

2001-10-08  Geert Bosch  (bosch@gnat.com)

	* 5oosinte.adb: Add 2001 to copyright notice.

2001-10-08  Geert Bosch  (bosch@gnat.com)

	* ceinfo.adb: Add utility for consistency checking of einfo.ad[bs].

	* csinfo.adb: Add utility for consistency checking of sinfo.ad[bs].

2001-10-07  Joseph S. Myers  <jsm28@cam.ac.uk>

	* 5oosinte.adb: Fix spelling error of "separate" as "seperate".

2001-10-05  Geert Bosch  (bosch@gnat.com)

	* adaint.h: Small formatting fix.

2001-10-04  Geert Bosch  <bosch@gnat.com>

	* sysdep.c (__gnat_set_binary_mode, __gnat_set_text_mode):
	Arg is int, not FILE *, in dummy version of functions.

	* adaint.h (__gnat_set_binary_mode, __gnat_set_text_mode):
	Arg is int, not FILE *.

2001-10-04  Geert Bosch  <bosch@gnat.com>

	* 3lsoccon.ads: Added file, missed with initial check ins.

	* 4lintnam.ads: Fix header format.
	Change Linux to GNU/Linux.

	* 5iosinte.adb: Change Linux to GNU/Linux.

	* 5iosinte.ads: Change Linux to GNU/Linux.

	* 5itaprop.adb: Change Linux to GNU/Linux.

	* 5itaspri.ads: Change Linux to GNU/Linux.
	Update copyright notice.

	* 5lintman.adb: Change Linux to GNU/Linux.

	* 5lml-tgt.adb: Change Linux to GNU/Linux.

	* 5losinte.ads: Change Linux to GNU/Linux.

	* 5lsystem.ads: Change Linux to GNU/Linux.

	* 5qosinte.adb: Change Linux to GNU/Linux.

	* 5qosinte.ads: Change Linux to GNU/Linux.

	* 5qparame.ads: Change Linux to GNU/Linux.

	* 5qtaprop.adb: Change Linux to GNU/Linux.

	* 5qtaspri.ads: Change Linux to GNU/Linux.
	Add 2001 to copyright notice.

	* 5vintman.ads: Change Linux to GNU/Linux.
	Fix header format.  Add 2001 to copyright notice.

	* g-soccon.ads: Change Linux to GNU/Linux.

	* g-trasym.ads: Change Linux to GNU/Linux.
	Add 2001 to copyright notice.

	* memtrack.adb: Change Linux to GNU/Linux.

	* s-intman.ads: Change Linux to GNU/Linux.
	Add 2001 to copyright notice.  Fix header format.

	* s-stache.adb: Change Linux to GNU/Linux.

	* adaint.c: Change Linux to GNU/Linux.

	* cio.c: Change Linux to GNU/Linux.

	* cstreams.c: Change Linux to GNU/Linux.

	* init.c: Change Linux to GNU/Linux.

	* gmem.c: Change Linux to GNU/Linux.

	* tracebak.c: Change Linux to GNU/Linux.


2001-10-02  Geert Bosch  <bosch@gnat.com>

	* misc.c (insert_default_attributes): Add dummy version.