gcc/libgfortran/ChangeLog

2014-07-20  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/61632
	* io/format.c (format_error): Avoid invalid string pointer by
	using the fortran string length values to generate error string.
	(parse_format): Allocate the null terminator for the format
	string.

2014-07-12  Tobias Burnus  <burnus@net-b.de>

	* caf/libcaf.h (_gfortran_caf_atomic_define,
	_gfortran_caf_atomic_ref, _gfortran_caf_atomic_op,
	_gfortran_caf_atomic_cas): New prototypes.
	* caf/single.c (_gfortran_caf_atomic_define,
	_gfortran_caf_atomic_ref, _gfortran_caf_atomic_op,
	_gfortran_caf_atomic_cas): New functions.

2014-07-10  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* config/fpu-*.h (get_fpu_rounding_mode, set_fpu_rounding_mode,
	support_fpu_rounding_mode): Clean up, mark unreachable code as such.

2014-07-09  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* libgfortran.h (support_fpu_underflow_control,
	get_fpu_underflow_mode, set_fpu_underflow_mode): New prototypes.
	* config/fpu-*.h (support_fpu_underflow_control,
	get_fpu_underflow_mode, set_fpu_underflow_mode):
	New functions.
	* ieee/ieee_arithmetic.F90: Support underflow control.

2014-07-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* config/fpu-sysv.h (get_fpu_rounding_mode): Use FP_RN, FP_RP,
	FP_RM, FP_RZ unconditionally.
	(set_fpu_rounding_mode): Likewise.

2014-07-07  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* libgfortran.h: Assume __GNUC__.

2014-07-07  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* runtime/stop.c: Use C11 _Noreturn.
	* libgfortran.h: Use C11 _Noreturn in prototypes.
	Move REALPART, IMAGPART and COMPLEX_ASSIGN macros...
	* intrinsics/c99_functions.c: ... here.

2014-07-07  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* config/fpu-387.h, config/fpu-aix.h, config/fpu-sysv.h,
	config/fpu-glibc.h: Use static assertions.

2014-07-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* configure, config.h.in: Regenerate.
	* config/fpu-sysv.h: Include <assert.h>.

2014-07-02  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* config/fpu-glibc.h: Fix comment about FE_DENORMAL.

2014-07-02  Uros Bizjak  <ubizjak@gmail.com>

	* configure.host (ieee_flags): Add -mieee for alpha*.

	* config/fpu-glibc.h (support_fpu_rounding_mode): Correctly handle
	GFC_FPE_UPWARD, GFC_FPE_DOWNWARD and GFC_FPE_TOWARDZERO.
	* config/fpu-aix.h (support_fpu_rounding_mode): Ditto.

2014-06-29  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	* config/fpu-387.h (my_fenv_t): Amend structure so it also works
	on mingw32.

2014-06-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/61640
	* io/list_read.c (next_char_internal): Adjust the read length to
	a single wide character. (eat_spaces): Add missing paren.
	* io/unix.c (mem_read4): Use the correct mem_alloc function for
	wide character internal reads.

2014-06-28  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	PR fortran/29383
	* configure.host: Add checks for IEEE support, rework priorities.
	* configure.ac: Define IEEE_SUPPORT, check for fpsetsticky and
	fpresetsticky.
	* configure: Regenerate.
	* Makefile.am: Build new ieee files, install IEEE_* modules.
	* Makefile.in: Regenerate.
	* gfortran.map (GFORTRAN_1.6): Add new symbols.
	* libgfortran.h (get_fpu_trap_exceptions, set_fpu_trap_exceptions,
	support_fpu_trap, set_fpu_except_flags, support_fpu_flag,
	support_fpu_rounding_mode, get_fpu_state, set_fpu_state): New
	prototypes.
	* config/fpu-*.h (get_fpu_trap_exceptions,
	set_fpu_trap_exceptions, support_fpu_trap, set_fpu_except_flags,
	support_fpu_flag, support_fpu_rounding_mode, get_fpu_state,
	set_fpu_state): New functions.
	* ieee/ieee_features.F90: New file.
	* ieee/ieee_exceptions.F90: New file.
	* ieee/ieee_arithmetic.F90: New file.
	* ieee/ieee_helper.c: New file.

2014-06-26  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/61499
	* io/list_read.c (eat_spaces): Use a 'for' loop instead of
	'while' loop to skip the loop if there are no bytes left in the
	string. Only seek if actual spaces can be skipped.

2014-06-25  Tobias Burnus  <burnus@net-b.de>

	* caf/single.c (assign_char4_from_char1, assign_char1_from_char4,
	convert_type): New static functions.
	(_gfortran_caf_get, _gfortran_caf_send): Use them.

2014-06-19  Tobias Burnus  <burnus@net-b.de>

	* caf/single.c (_gfortran_caf_co_sum, _gfortran_caf_co_max,
	_gfortran_caf_co_min): Fix stat setting.

2014-06-17  Tobias Burnus  <burnus@net-b.de>

	* caf/libcaf.h (gfc_descriptor_t): New typedef.
	(caf_vector_t): Update.
	(_gfortran_caf_co_sum, _gfortran_caf_co_max, _gfortran_caf_co_min):
	Remove vector-subscript argument.
	(_gfortran_caf_co_send, _gfortran_caf_co_get,
	_gfortran_caf_co_sendget): New.
	* caf/single.c (_gfortran_caf_co_sum, _gfortran_caf_co_max,
	_gfortran_caf_co_min): Remove vector-subscript argument.
	(_gfortran_caf_co_send, _gfortran_caf_co_get,
	_gfortran_caf_co_sendget): New.

2014-06-17  Janne Blomqvist  <jb@gcc.gnu.org>

	* libgfortran.h (xmallocarray): New prototype.
	* runtime/memory.c (xmallocarray): New function.
	(xcalloc): Check for nonzero separately instead of multiplying.
	* generated/*.c: Regenerated.
	* intrinsics/cshift0.c (cshift0): Call xmallocarray instead of
	xmalloc.
	* intrinsics/eoshift0.c (eoshift0): Likewise.
	* intrinsics/eoshift2.c (eoshift2): Likewise.
	* intrinsics/pack_generic.c (pack_internal): Likewise.
	(pack_s_internal): Likewise.
	* intrinsics/reshape_generic.c (reshape_internal): Likewise.
	* intrinsics/spread_generic.c (spread_internal): Likewise.
	(spread_internal_scalar): Likewise.
	* intrinsics/string_intrinsics_inc.c (string_trim): Likewise.
	(string_minmax): Likewise.
	* intrinsics/transpose_generic.c (transpose_internal): Likewise.
	* intrinsics/unpack_generic.c (unpack_internal): Likewise.
	* io/list_read.c (nml_touch_nodes): Don't cast xmalloc return value.
	* io/transfer.c (st_set_nml_var): Call xmallocarray instead of
	xmalloc.
	* io/unit.c (get_internal_unit): Likewise.
	(filename_from_unit): Don't cast xmalloc return value.
	* io/write.c (nml_write_obj): Likewise, formatting.
	* m4/bessel.m4 (bessel_jn_r'rtype_kind`): Call xmallocarray
	instead of xmalloc.
	(besse_yn_r'rtype_kind`): Likewise.
	* m4/cshift1.m4 (cshift1): Likewise.
	* m4/eoshift1.m4 (eoshift1): Likewise.
	* m4/eoshift3.m4 (eoshift3): Likewise.
	* m4/iforeach.m4: Likewise.
	* m4/ifunction.m4: Likewise.
	* m4/ifunction_logical.m4 (name`'rtype_qual`_'atype_code):
	Likewise.
	* m4/in_pack.m4 (internal_pack_'rtype_ccode`): Likewise.
	* m4/matmul.m4 (matmul_'rtype_code`): Likewise.
	* m4/matmull.m4 (matmul_'rtype_code`): Likewise.
	* m4/pack.m4 (pack_'rtype_code`): Likewise.
	* m4/reshape.m4 (reshape_'rtype_ccode`): Likewise.
	* m4/shape.m4 (shape_'rtype_kind`): Likewise.
	* m4/spread.m4 (spread_'rtype_code`): Likewise.
	(spread_scalar_'rtype_code`): Likewise.
	* m4/transpose.m4 (transpose_'rtype_code`): Likewise.
	* m4/unpack.m4 (unpack0_'rtype_code`): Likewise.
	(unpack1_'rtype_code`): Likewise.
	* runtime/convert_char.c (convert_char1_to_char4): Likewise.
	(convert_char4_to_char1): Simplify.
	* runtime/environ.c (init_unformatted): Call xmallocarray instead
	of xmalloc.
	* runtime/in_pack_generic.c (internal_pack): Likewise.

2014-06-15  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

	PR libfortran/60468
	* configure.ac: Include <math.h> when checking for fp_except_t
	and fp_rnd_t types.
	* configure: Regenerate.

2014-06-08  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/56981
	* io/unix.h (struct stream_vtable): Add new member function,
	markeor.
	(smarkeor): New inline function.
	(flush_if_unbuffered): Remove prototype.
	* io/unix.c (raw_markeor): New function.
	(raw_vtable): Initialize markeor member.
	(buf_markeor): New function.
	(buf_vtable): Initialize markeor member.
	(mem_vtable): Likewise.
	(mem4_vtable): Likewise.
	(flush_if_unbuffered): Remove function.
	* io/transfer.c (next_record): Call smarkeor instead of
	flush_if_unbuffered.

2014-05-27  Uros Bizjak  <ubizjak@gmail.com>

	* intrinsics/getcwd.c: Include stdlib.h.

2014-05-26  Janne Blomqvist  <jb@gcc.gnu.org>

	* libgfortran.h (xrealloc): New prototype.
	* runtime/memory.c (xrealloc): New function.
	* io/fbuf.c (fbuf_alloc): Use xrealloc.
	* io/list_read.c (push_char_default): Likewise.
	(push_char4): Likewise.

2014-05-26  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/61310
	* intrinsics/ctime.c (strctime): Rename to gf_ctime, use snprintf
	instead of strftime.
	(fdate): Use gf_ctime.
	(fdate_sub): Likewise.
	(ctime): Likewise.
	(ctime_sub): Likewise.

2014-05-26  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/55117
	* io/list_read.c (extended_look_ahead): New helper function to
	scan the namelist name and look for matches with the new '+'
	extended type parent indicator.  (str_comp_extended): New
	helper function to compare the namelist name with the varname
	namelist. (find_nml_name): Use the new helper functions to match
	the extended type varnames.

2014-05-23  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/61173
	* io/list_read.c (eat_spaces): If the next character pointed to
	is a space, don't seek, must be at the end.

2014-05-23  Hans-Peter Nilsson  <hp@axis.com>

	* configure.ac [with_newlib] (HAVE_STRNLEN, HAVE_STRNDUP): Define.
	* configure: Regenerate.

2014-05-23  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/60324
	* runtime/string.c: Include stdlib.h.

2014-05-22  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/60324
	* config.h.in: Regenerated.
	* configure: Regenerated.
	* configure.ac (AC_CHECK_FUNCS_ONCE): Check for strnlen and
	strndup.
	* libgfortran.h (fc_strdup): New prototype.
	* runtime/string.c (strnlen): New fallback function.
	(strndup): New fallback function.
	(fc_strdup): New function.
	* io/close.c (st_close): Use fc_strdup.
	* io/open.c (new_unit): Likewise.
	(already_open): Likewise.
	* io/unit.c (filename_from_unit): Likewise.
	* io/unix.c (unpack_filename): Remove function.
	(regular_file): Rename to regular_file2, add path argument.
	(regular_file): New function calling regular_file2.
	(compare_file_filename): Use fc_strdup.
	(find_file): Likewise.
	(delete_file): Likewise.
	(file_exists): Likewise.
	(file_size): Likewise.
	(inquire_sequential): Likewise.
	(inquire_direct): Likewise.
	(inquire_formatted): Likewise.
	(inquire_access): Likewise.
	* io/unix.h (unpack_filename): Remove prototype.
	* runtime/main.c (please_free_exe_path_when_done): Change type to
	bool.
	(store_exe_path): Use malloced buffer, grow as needed.

2014-05-17  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/52539
	* io/io.h (gfc_unit): New function pointers *next_char_fn_ptr
	and *push_char_fn_ptr.
	*io/list_read.c (next_char): Create macro with this name to call
	the new function pointer. Split the original next_char function
	into three new functions. (next_char_default, next_char_internal,
	next_char_utf8): New functions. (push_char): Create macro with
	this name to call new function pointer. Split the original
	push_char into three new functions. (push_char_default,
	push_char_internal, push_char4): New functions. (set_workers):
	New function to initilize the function pointers depending on the
	type of IO to be performed. (list_formatted_read_scalar): Use
	set_workers function. (finish_list_read): Likewise.
	(namelist_read): Likewise.
	(nml_get_obj_data): Use push_char_default.

2014-05-16  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/61187
	* io/unix.c (raw_close): Check if s->fd is -1.
	(fd_to_stream): Check return value of fstat(), handle error.

2014-05-12  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/61035
	* intrinsics/getcwd.c (getcwd_i4_sub): Avoid potentially large
	stack allocation, avoid extra copying in the common case.

2014-05-12  Janne Blomqvist  <jb@gcc.gnu.org>

	* configure.ac (AM_CFLAGS): Use -std=gnu11.
	(CFLAGS): Likewise.
	* configure: Regenerated.

2014-05-11  Tobias Burnus  <burnus@net-b.de>

	* caf/libcaf.h (_gfortran_caf_num_images): Change type of
	second argument to int.
	* caf/mpi.c (_gfortran_caf_num_images): Ditto.
	* caf/single.c (_gfortran_caf_num_images): Ditto.

2014-05-08  Tobias Burnus  <burnus@net-b.de>

	* caf/libcaf.h (caf_vector_t, _gfortran_caf_co_sum,
	_gfortran_caf_co_min, _gfortran_caf_co_max): Declare
	* caf/single.c

2014-05-06  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/61049
	* io/list_read.c (list_formatted_read_scalar): Use eat_separator
	and delete extraneous code.

2014-04-30  Tobias Burnus  <burnus@net-b.de>

	* caf/libcaf.h (_gfortran_caf_this_image, _gfortran_caf_num_images):
	New prototypes.
	(_gfortran_caf_init): Change prototype.
	(mpi_token_t): New typedef.
	(TOKEN): New define.
	* caf/mpi.c (_gfortran_caf_this_image, _gfortran_caf_num_images):
	New functions.
	(_gfortran_caf_init): Update.
	(_gfortran_caf_finalize, _gfortran_caf_register,
	_gfortran_caf_deregister): Use mpi_token_t.
	* caf/single.c (_gfortran_caf_this_image, _gfortran_caf_num_images):
	New functions.
	(_gfortran_caf_init): Update.
	(_gfortran_caf_finalize, _gfortran_caf_register,
	_gfortran_caf_deregister): Use mpi_token_t, simplify.

2014-04-26  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/52539
	* io/list_read.c: Add uchar typedef. (push_char4): New function
	to save kind=4 character. (next_char_utf8): New function to read
	a single UTF-8 encoded character value. (read_chracter): Update
	to use the new functions for reading UTF-8 strings.
	(list_formatted_read_scalar): Update to handle list directed
	reads of UTF-8 strings. (nml_read_obj): Likewise update for
	UTF-8 strings in namelists.
	* io/write.c (nml_write_obj): Add kind=4 character support for
	namelist writes.

2014-04-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* configure.ac: Quote usage of ac_cv_func_clock_gettime in if test.
	* configure: Regenerate.

2014-04-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* config/fpu-387.h [__sun__ && __svr4__]: Remove SSE execution
	check.

2014-04-11  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/60810
	io/unit.c (is_trim_ok): If internal unit is array, do not trim.

2014-03-21  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/60148
	* io/transfer.c (data_transfer_init): If std= was specified, set
	delim status to DELIM_NONE of no other was specified.

2014-03-18  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

	* configure.ac: Check for presence of fcntl.
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* io/unix.c (set_close_on_exec): Check for HAVE_FCNTL.

2014-03-17  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/48600
	* io/list_read.c (list_formatted_read_scalar): Do not use
	eat_separator. Explicitly set the comma and end-of-line flags.
	Check for END condition from finish_separator.

2014-03-15  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/58324
	* io/list_read.c (finish_list_read): Read one character to check
	for the end of the file.  If it is the end, then issue the file
	end error message.  If not, use eat_line to reach the end
	without giving error.  The next attempt to read will then
	issue the error as described above.

2014-03-12  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/38199
	* io/read.c (read_decimal): Quickly skip spaces to avoid calls
	to next_char.
	* io/unit.c (is_trim_ok): New helper function to check various
	conditions to see if its OK to trim the internal unit string.
	(get_internal_unit): Use LEN_TRIM to shorten selected internal
	unit strings for optimizing READ. Enable this optimization for
	formatted READ.
	* io/list_read.c (finish_list_read): Don't call eat_line for
	internal units.

2014-03-08  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/38199
	* io/list_read.c (next_char): Mark unlikely error checks.
	(eat_spaces): For character array reading, skip ahead over
	spaces rather than call next_char multiple times.

2014-03-08  Tobias Burnus  <burnus@net-b.de>

	* libgfortran.h (unlikely, likely): Add usage comment.

2014-03-08  Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR libgfortran/60128
	* io/write_float.def (output_float): Remove unused variable
	nzero_real. Replace a double space with a single one.
	(determine_en_precision): Fix wrong handling of the EN format.

2014-03-03  Jerry DeLisle  <jvdelisle@gcc.gnu>

	PR libfortran/60148
	* io/inquire.c (inquire_via_unit): In the case of
	DELIM_UNSPECIFIED set inquire return string to "NONE".
	* io/list_read.c (read_character): In the case of DELIM_NONE and
	namelists, complete the character read using the namelist
	variable length.
	* io/open.c (new_unit): Don't set delim status to none if not
	specified so that DELIM_UNSPECIFIED can be used later.
	* io/transfer.c (data_transfer_init): For namelist I/O, if the
	unit delim status is unspecified set the current status to quote.
	Otherwise, set current status to the unit status.
	* io/unit.c (get_internel_unit, init_unit): Remember to set
	flags_delim initially to DELIM_UNSPECIFIED so defaults come out
	correctly.
	* io/write.c (write_character): Add a new function argument
	"mode" to signify that raw output is to be used vs output with
	delimiters. If the mode is set to DELIM (1) proceed with
	delimiters. (list_formatted_write_scalar): Write the separator
	only if a delimiter was previously specified. Update the call to
	write_character with the mode argument given.
	(namelist_write_newline): Use the mode argument. (nml_write_obj):
	Use the mode argument. Remove use of tmp_delim. Write the
	semi-colon or comma correctly only when needed with using
	delimiters. Cleanup whitespace.
	(namelist_write): If delim is not specified in namelist I/O,
	default	to using quotes. Get rid of the tmp_delim variable and
	use the new mode argument in write_character.

2014-02-21  Tobias Burnus  <burnus@net-b.de>

	PR fortran/60286
	* libgfortran/io/inquire.c (yes, no): New static const char vars.
	(inquire_via_unit): Use them. Use OPEN mode instead of using
	POSIX's access to query about write=, read= and readwrite=.

2014-01-20  Jerry DeLisle  <jvdelisle@gcc.gnu>
	    Dominique d'Humieres  <dominiq@lps.ens.fr>

	* io/write_float.def (output_float): Remove inadvertent test
	code from previous patch.

2014-01-19  Jerry DeLisle  <jvdelisle@gcc.gnu>
	    Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR libfortran/59771
	PR libfortran/59774
	PR libfortran/59836
	* io/write_float.def (output_float): Fix wrong handling of the
	Fw.0 format.
	(output_float_FMT_G_): Fixes rounding issues with -m32.

2014-01-11  Jerry DeLisle  <jvdelisle@gcc.gnu>
	    Dominique d'Humieres  <dominiq@lps.ens.fr>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR libfortran/59700
	PR libfortran/59764
	* io/io.h (struct st_parameter_dt): Assign expanded_read flag to
	unused bit. Define new variable line_buffer_pos.
	* io/list_read.c (free_saved, next_char, l_push_char,
	read_logical, read_real): Replace use of item_count with
	line_buffer_pos for line_buffer look ahead.
	(read_logical, read_integer, parse_real, read_real, check_type):
	Adjust location of free_line to after generating error messages
	to retain the correct item count for the message.

2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

	Update copyright years
^L
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