gcc/libgfortran/ChangeLog-2019

2019-12-01  Jerry DeLisle  <jvdelisle@gcc.ngu.org>

	PR fortran/90374
	* io/format.c (parse_format_list): Add braces to disambiguate
	conditional.

2019-11-28  Jerry DeLisle  <jvdelisle@gcc.ngu.org>

	PR fortran/90374
	* io/format.c (parse_format_list): Relax format checking to allow
	e0 exponent specifier.

2019-11-24  Jerry DeLisle  <jvdelisle@gcc.ngu.org>

	PR fortran/92100
	* io/transfer.c (data_transfer_init_worker): Use fbuf_reset
	instead of fbuf_flush before the seek. Note that fbuf_reset
	calls fbuf_flush and adjusts fbuf pointers.

2019-11-23  Thomas Koenig  <tkoenig@gcc.gnu.org>
	Harald Anlauf <anlauf@gmx.de>

	PR fortran/92569
	* io/transfer.c (transfer_array_inner):  If position is
	at AFTER_ENDFILE in current unit, return from data loop.

2019-11-18  Maciej W. Rozycki  <macro@wdc.com>

	* Makefile.in: Regenerate.

2019-11-13  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92470
	* runtime/ISO_Fortran_binding.c (CFI_establish): Set lower_bound to 0
	also for CFI_attribute_other.

2019-11-12  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92470
	* runtime/ISO_Fortran_binding.c (CFI_address): Handle non-zero
	lower_bound; update error message.
	(CFI_allocate): Fix comment typo.
	(CFI_establish): Fix identation, fix typos, don't check values of 'dv'
	argument.

2019-11-11  José Rui Faustino de Sousa  <jrfsousa@gmail.com>

	PR fortran/92142
	* runtime/ISO_Fortran_binding.c (CFI_setpointer): Don't
	override descriptor attribute; with -fcheck, check that
	it is a pointer.

2019-11-06  Jerry DeLisle  <jvdelisle@gcc.ngu.org>

	PR fortran/90374
	io/format.c (parse_format_list): Relax format checking for
	zero width as default and when -std=f2018.
	io/format.h (format_token): Move definition to io.h.
	io/io.h (format_token): Add definition here to allow access to
	this definition at higher levels. Rename the declaration of
	write_real_g0 to write_real_w0 and add a new format_token
	argument, allowing higher level functions to pass in the
	token for handling of g0 vs the other zero width specifiers.
	io/transfer.c (formatted_transfer_scalar_write): Add checks for
	zero width and call write_real_w0 to handle it.
	io/write.c (write_real_g0): Remove.
	(write_real_w0): Add new, same as previous write_real_g0 except
	check format token to handle the g0 case.

2019-10-31  Tobias Burnus  <tobias@codesourcery.com>

	PR fortran/92284.
	* runtime/ISO_Fortran_binding.c (gfc_desc_to_cfi_desc):

2019-10-19  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91926
	* runtime/ISO_Fortran_binding.c (cfi_desc_to_gfc_desc): Revert
	the change made on 2019-10-05.

2019-10-08  Thomas Schwinge  <thomas@codesourcery.com>

	PR fortran/68401
	* runtime/minimal.c (os_error_at): New function.
	* runtime/minimal.c: Revise.

2019-10-05  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91926
	* runtime/ISO_Fortran_binding.c (cfi_desc_to_gfc_desc): Do not
	modify the bounds and offset for CFI_other.

2019-10-01  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/91593
	* io/read.c (read_decimal): Cast constant to size_t to turn off
	a bogus warning.
	* io/write.c (btoa_big): Use memset in lieu of setting the null
	byte in a string buffer to turn off a bogus warning.

2019-09-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/91593
	* io/io.h: Add gcc_unreachable().
	* io/transfer.c (file_mode, current_mode,
	formatted_transfer_scalar_read, formatted_transfer_scalar_write,
	pre_position, next_record_r, next_record_w): Add and use
	FORMATTED_UNSPECIFIED to enumeration.

2019-09-27  Maciej W. Rozycki  <macro@wdc.com>

	* configure: Regenerate.

2019-09-05  Janne Blomqvist  <jb@gcc.gnu.org>

	* intrinsics/random.c (master_init): Replace with
	master_state.init.
	(njumps): Remove variable.
	(master_state): Make instance of struct prng_state.
	(init_rand_state): When jumping, update the master_state once
	instead of keeping track of how many jumps need to be done.
	(SZU64): Modify to handle new master_state.
	(SZ): Likewise.
	(random_seed_i4): Likewise.
	(random_seed_i8): Likewise.

2019-08-17  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/68401
	* gfortran.map: Add GFORTRAN_10 node, add _gfortran_os_error_at
	symbol.
	* libgfortran.h (os_error_at): New prototype.
	* runtime/error.c (os_error_at): New function.

2019-08-13  Janne Blomqvist  <jb@gcc.gnu.org>

        PR fortran/91414
        * intrinsics/random.c (prng_state): Update state struct.
        (master_state): Update to match new size.
        (get_rand_state): Update to match new PRNG.
        (rotl): New function.
        (xorshift1024star): Replace with prng_next.
        (prng_next): New function.
        (jump): Update for new PRNG.
        (lcg_parkmiller): Replace with splitmix64.
        (splitmix64): New function.
        (getosrandom): Fix return value, simplify.
        (init_rand_state): Use getosrandom only to get 8 bytes, splitmix64
        to fill rest of state.
        (random_r4): Update to new function and struct names.
        (random_r8): Likewise.
        (random_r10): Likewise.
        (random_r16): Likewise.
        (arandom_r4): Liekwise.
        (arandom_r8): Likewise.
        (arandom_r10): Likwewise.
        (arandom_r16): Likewise.
        (xor_keys): Reduce size to match new PRNG.
        (random_seed_i4): Update to new function and struct names, remove
        special handling of variable p used in previous PRNG.
        (random_seed_i8): Likewise.

2019-08-07  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/53796
	* io/inquire.c (inquire_via_filename): Set recl to -1 for
	unconnected units.

2019-07-21  Thomas König  <tkoenig@gcc.gnu.org>

	PR libfortran/91030
	* io/unix.c (BUFFER_SIZE): Delete.
	(BUFFER_FORMATTED_SIZE_DEFAULT): New variable.
	(BUFFER_UNFORMATTED_SIZE_DEFAULT): New variable.
	(unix_stream): Add buffer_size.
	(buf_read): Use s->buffer_size instead of BUFFER_SIZE.
	(buf_write): Likewise.
	(buf_init): Add argument unformatted.  Handle block sizes
	for unformatted vs. formatted, using defaults if provided.
	(fd_to_stream): Add argument unformatted in call to buf_init.
	* libgfortran.h (options_t): Add buffer_size_formatted and
	buffer_size_unformatted.
	* runtime/environ.c (variable_table): Add
	GFORTRAN_UNFORMATTED_BUFFER_SIZE and
	GFORTRAN_FORMATTED_BUFFER_SIZE.

2019-06-25  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Andrew Stubbs  <ams@codesourcery.com>

	* configure: Regenerate.
	* configure.ac (LIBGFOR_MINIMAL): Do not use on AMD GCN.

2019-06-14  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/65921
	* runtime/memory.c (SIZE_MAX):Remove macro definition.
	(xmallocarray): Use __builtin_mul_overflow.

2019-05-22  Jeff Law  <law@redhat.com>

	PR fortran/89100
	* io/format.c (parse_format_list): set default width when the
	IOPARM_DT_DEC_EXT flag is set for i, f and g.
	* io/io.h: add default_width_for_integer, default_width_for_float
	and default_precision_for_float.
	* io/write.c (write_boz): extra parameter giving length of data
	corresponding to the type's kind.
	(write_b): pass data length as extra parameter in calls to
	write_boz.
	(write_o): pass data length as extra parameter in calls to
	write_boz.
	(write_z): pass data length as extra parameter in calls to
	write_boz.
	(size_from_kind): also set size is default width is set.
	* io/write_float.def (build_float_string): new paramter inserted
	before result parameter. If default width use values passed
	instead of the values in fnode.
	(FORMAT_FLOAT): macro modified to check for default width and
	calls to build_float_string to pass in default width.
	(get_float_string): set width and precision to defaults when
	needed.

2019-05-19  Janne Blomqvist  <jb@gcc.gnu.org>

        PR libfortran/90038
        * intrinsics/execute_command_line (sigchld_handler): New function.
        (execute_command_line): Install handler for SIGCHLD.
        * configure.ac: Check for presence of sigaction and waitpid.
        * config.h.in: Regenerated.
        * configure: Regenerated.

2019-05-17  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/90038
	* configure.ac (AC_CHECK_FUNCS_ONCE): Check for posix_spawn.
	* intrinsics/execute_command_line (execute_command_line): Use
	posix_spawn.
	* Makefile.in: Regenerated.
	* config.h.in: Regenerated.
	* configure: Regenerated.

2019-05-17  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/54613
	* gfortran.map (GFORTRAN_9.2): Export _gfortran_{,m,s}findloc{0,1}_r10.
	* Makefile.am (i_findloc0_c): Add $(srcdir)/generated/findloc0_r10.c.
	(i_findloc1_c): Add $(srcdir)/generated/findloc1_r10.c.
	* Makefile.in: Regenerated.
	* generated/findloc0_r10.c: Generated.
	* generated/findloc1_r10.c: Generated.

	PR fortran/54613
	* gfortran.map (GFORTRAN_9.2): New symbol version, export
	_gfortran_{,m,s}findloc0_i2 in it.

2019-05-15  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/90461
        * io/open.c (new_unit): Don't check if the file is already open
	for F2018.

2019-05-02  Jakub Jelinek  <jakub@redhat.com>

	* Makefile.am (gfor_cdir): Remove $(MULTISUBDIR).
	* Makefile.in: Regenerated.

2019-04-14  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/89843
	* runtime/ISO_Fortran_binding.c (cfi_desc_to_gfc_desc): Only
	return immediately if the source pointer is null. Bring
	forward the extraction of the gfc type. Extract the kind so
	that the element size can be correctly computed for sections
	and components of derived type arrays. Remove the free of the
	CFI descriptor since this is now done in trans-expr.c.
	(gfc_desc_to_cfi_desc): Only allocate the CFI descriptor if it
	is not null.
	(CFI_section): Normalise the difference between the upper and
	lower bounds by the stride to correctly calculate the extents
	of the section.

	PR fortran/89846
	* runtime/ISO_Fortran_binding.c (cfi_desc_to_gfc_desc): Use
	the stride measure for the gfc span if it is not a multiple
	of the element length. Otherwise use the element length.

	PR fortran/90022
	* runtime/ISO_Fortran_binding.c (CFI_is_contiguous) : Return
	1 for true and 0 otherwise to comply with the standard. Correct
	the contiguity check for rank 3 and greater by using the stride
	measure of the lower dimension rather than the element length.

2019-03-25  John David Anglin  <danglin@gcc.gnu.org>

	PR libgfortran/79540
	* io/write_float.def (build_float_string): Don't copy digits when
	ndigits is negative.

2019-03-05  Jakub Jelinek  <jakub@redhat.com>

	PR libgfortran/89593
	* caf/single.c (_gfortran_caf_sendget_by_ref): Cast &temp to
	gfc_descriptor_t * to avoid warning.

2019-02-26  Uroš Bizjak  <ubizjak@gmail.com>

	* io/transfer.c (transfer_array_inner): Do not
	cast charlen to index_type.

2019-02-25  Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR libfortran/89274
	* io/write.c (write_integer): Add width for INTEGER(16).

2019-02-23  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/89385
	PR fortran/89366
	* runtime/ISO_Fortran_binding.c (cfi_desc_to_gfc_desc) : In the
	interchange between character and derived, the character type
	was being set incorrectly.
	(gfc_desc_to_cfi_desc) : Eliminate the interchange of types in
	this function. Do not add the kind and length information to
	the type field of structures. Lbounds were incorrectly being
	set to zero for allocatable and pointer descriptors. Should
	have been non-pointer, non-allocatables that received this
	treatment.

2019-01-30  Uroš Bizjak  <ubizjak@gmail.com>

	PR libfortran/88678
	Revert:
	2016-11-16  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	PR libfortran/78314
	* config/fpu-glibc.h (support_fpu_trap): Use feenableexcept.

2019-01-30  Uroš Bizjak  <ubizjak@gmail.com>

	PR libfortran/88678
	* config/fpu-glibc.h (set_fpu_trap_exceptions): Clear stalled
	exception flags before changing trap mode.  Optimize to call
	feenableexcept and fedisableexcept only once.

2019-01-28  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* io/async.c (init_adv_cond): Use __GTHREAD_COND_INIT_FUNCTION().

2019-01-27  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/89020
	* io/close.c (st_close): Simplify text of error message to not
	presume a specific cause of failure to remove file.

2019-01-26  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/89020
	* io/close.c (st_close): Fix typo.

2019-01-26  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/89020
	* io/close.c (st_close): Generate error if calls to 'remove' return
	an error.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
	    Kwok Cheung Yeung  <kcy@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>
	    Tom de Vries  <tom@codesourcery.com>

	* configure.ac: Use minimal mode for amdgcn.
	* configure: Regenerate.

2019-01-13  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/88776
	* io/open.c (newunit): Free format buffer if the unit specified is for
	stdin, stdout, or stderr.

2019-01-12  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/88776
	* io/list_read.c (namelist_read): Use nml_err_ret path on read error
	not based on stdin_unit.

2019-01-12  Paul Thomas  <pault@gcc.gnu.org>

	* ISO_Fortran_binding.h : New file.
	* Makefile.am : Include ISO_Fortran_binding.c in the list of
	files to compile.
	* Makefile.in : Regenerated.
	* gfortran.map : Add _gfortran_cfi_desc_to_gfc_desc,
	_gfortran_gfc_desc_to_cfi_desc and the CFI API functions.
	* runtime/ISO_Fortran_binding.c : New file containing the new
	functions added to the map.

2019-01-12  Jakub Jelinek  <jakub@redhat.com>

	PR libfortran/88807
	* m4/minloc0.m4: Reindent to avoid -Wmisleading-indentation warnings.
	* generated/minloc0_4_i1.c: Regenerated.
	* generated/minloc0_4_i2.c: Regenerated.
	* generated/minloc0_4_i4.c: Regenerated.
	* generated/minloc0_4_i8.c: Regenerated.
	* generated/minloc0_4_i16.c: Regenerated.
	* generated/minloc0_4_r4.c: Regenerated.
	* generated/minloc0_4_r8.c: Regenerated.
	* generated/minloc0_4_r10.c: Regenerated.
	* generated/minloc0_4_r16.c: Regenerated.
	* generated/minloc0_8_i1.c: Regenerated.
	* generated/minloc0_8_i2.c: Regenerated.
	* generated/minloc0_8_i4.c: Regenerated.
	* generated/minloc0_8_i8.c: Regenerated.
	* generated/minloc0_8_i16.c: Regenerated.
	* generated/minloc0_8_r4.c: Regenerated.
	* generated/minloc0_8_r8.c: Regenerated.
	* generated/minloc0_8_r10.c: Regenerated.
	* generated/minloc0_8_r16.c: Regenerated.
	* generated/minloc0_16_i1.c: Regenerated.
	* generated/minloc0_16_i2.c: Regenerated.
	* generated/minloc0_16_i4.c: Regenerated.
	* generated/minloc0_16_i8.c: Regenerated.
	* generated/minloc0_16_i16.c: Regenerated.
	* generated/minloc0_16_r4.c: Regenerated.
	* generated/minloc0_16_r8.c: Regenerated.
	* generated/minloc0_16_r10.c: Regenerated.
	* generated/minloc0_16_r16.c: Regenerated.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/16615
	* caf/single.c: Mechanically replace "can not" with "cannot".
	* io/unit.c: Likewise.

2019-01-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
	    Harald Anlauf <anlauf@gmx.de>
	    Tobias Burnus <burnus@gcc.gnu.org>

	PR fortran/45424
	* Makefile.am: Add intrinsics/is_contiguous.c.
	* Makefile.in: Regenerated.
	* gfortran.map: Add _gfortran_is_contiguous0.
	* intrinsics/is_contiguous.c: New file.
	* libgfortran.h: Add prototype for is_contiguous0.

2019-01-07  Janne Blomqvist  <jb@gcc.gnu.org>

	* gfortran.map (GFORTRAN_9): Make GFORTRAN_9 node depend on
	GFORTRAN_8.

2019-01-01  Jakub Jelinek  <jakub@redhat.com>

	Update copyright years.

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