ieee_support_halting only checked the availability of status
flags, not trapping support.  On some targets the later can
only be checked at runtime: feenableexcept reports if
enabling traps failed.

So check trapping support by enabling/disabling it.

Updated the test that enabled trapping to check if it is
supported.

gcc/testsuite/

	PR libgfortran/78314
	* gfortran.dg/ieee/ieee_6.f90: Use ieee_support_halting.

libgfortran/

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

From-SVN: r242505

2016-11-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	    Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libgfortran/51119
	* Makefile.am: Add new optimization flags matmul.
	* Makefile.in: Regenerate.
	* m4/matmul.m4: For the case of all strides = 1, implement a
	fast blocked matrix multiply. Fix some whitespace.
	* generated/matmul_c10.c: Regenerate.
	* generated/matmul_c16.c: Regenerate.
	* generated/matmul_c4.c: Regenerate.
	* generated/matmul_c8.c: Regenerate.
	* generated/matmul_i1.c: Regenerate.
	* generated/matmul_i16.c: Regenerate.
	* generated/matmul_i2.c: Regenerate.
	* generated/matmul_i4.c: Regenerate.
	* generated/matmul_i8.c: Regenerate.
	* generated/matmul_r10.c: Regenerate.
	* generated/matmul_r16.c: Regenerate.
	* generated/matmul_r4.c: Regenerate.
	* generated/matmul_r8.c: Regenerate.

2016-11-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libgfortran/51119
	* gfortran.dg/matmul_12.f90: New test case.

From-SVN: r242462

<toplevel>

2016-11-15  Matthias Klose  <doko@ubuntu.com>

	* config-ml.in: Remove references to GCJ.
	* configure.ac: Likewise.
	* configure: Regenerate.

config/

2016-11-15  Matthias Klose  <doko@ubuntu.com>

	multi.m4: Don't set GCJ.

gcc/

2016-11-15  Matthias Klose  <doko@ubuntu.com>

	* doc/install.texi: Remove references to gcj/libjava.
	* doc/invoke.texi: Likewise.

*/ (where necessary)

2016-11-15  Matthias Klose  <doko@ubuntu.com>

	* configure: Regenerate.

From-SVN: r242433

	gcc/fortran/
	* gfortran.texi: Document.
	* gfortran.h (gfc_dt): New field default_exp.
	* primary.c (match_real_constant): Default exponent with -fdec.
	* io.c (match_io): Set dt.default_exp with -fdec.
	* ioparm.def (IOPARM_dt_default_exp): New.
	* trans-io.c (build_dt): Set IOPARM_dt_default_exp with -fdec.

	libgfortran/io/
	* io.h (IOPARM_DT_DEFAULT_EXP): New flag bit.
	* list_read.c (parse_real, read_real): Allow omission of exponent with
	IOPARM_DT_DEFAULT_EXP.
	* read.c (read_f): Ditto.

	gcc/testsuite/gfortran.dg/
	* dec_exp_1.f90, dec_exp_2.f90, dec_exp_3.f90: New testcases.

From-SVN: r241828

2016-10-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/54679
	* io.c (check_format): Adjust checks for FMT_L to treat a zero
	width as an extension, giving warnings or error as appropriate.
	Improve messages.
	PR libgfortran/54679
	* io/format.c (parse_format_list): Adjust checks for FMT_L to
	treat a zero width as an extension, giving warnings or error
	as appropriate. Improve messages.
	PR fortran/54679
	* gfortran.dg/fmt_l.f90: Update test.
	* gfortran.dg/fmt_l0.f90: New test.

From-SVN: r241720

2016-10-30  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/78123
	* io/transfer.c (formatted_transfer_scalar_read): Clear seen_eor
	only if we have tabbed to left of current position.

	* gfortran.dg/fmt_t_9.f: New test.

From-SVN: r241691

	gcc/fortran/
	* gfortran.texi: Document.
	* frontend-passes.c (gfc_code_walker): Add SHARE and CARRIAGECONTROL.
	* io.c (gfc_free_open, gfc_resolve_open, gfc_match_open): Ditto.
	* gfortran.h (gfc_open): Add SHARE, CARRIAGECONTROL, and READONLY.
	* io.c (io_tag, match_open_element): Ditto.
	* ioparm.def: Ditto.
	* trans-io.c (gfc_trans_open): Ditto.
	* io.c (match_dec_etag, match_dec_ftag): New functions.

	libgfortran/io/
	* libgfortran.h (IOPARM_OPEN_HAS_READONLY, IOPARM_OPEN_HAS_SHARE,
	IOPARM_OPEN_HAS_CC): New for READONLY, SHARE, and CARRIAGECONTROL.
	* close.c (st_close): Support READONLY.
	* io.h (st_parameter_open, unit_flags): Support SHARE, CARRIAGECONTROL,
	and READONLY.
	* open.c (st_open): Ditto.
	* transfer.c (data_transfer_init): Ditto.
	* io.h (st_parameter_dt): New member 'cc' for CARRIAGECONTROL.
	* write.c (write_check_cc, write_cc): New functions for CARRIAGECONTROL.
	* transfer.c (next_record_cc): Ditto.
	* file_pos.c (st_endfile): Support SHARE and CARRIAGECONTROL.
	* io.h (st_parameter_inquire): Ditto.
	* open.c (edit_modes, new_unit): Ditto.
	* inquire.c (inquire_via_unit, inquire_via_filename): Ditto.
	* io.h (unit_share, unit_cc, cc_fortran, IOPARM_INQUIRE_HAS_SHARE,
	IOPARM_INQUIRE_HAS_CC): New for SHARE and CARRIAGECONTROL.
	* open.c (share_opt, cc_opt): Ditto.
	* read.c (read_x): Support CARRIAGECONTROL.
	* transfer.c (read_sf, next_record_r, next_record_w): Ditto.
	* write.c (list_formatted_write_scalar, write_a): Ditto.
	* unix.h (close_share): New prototype.
	* unix.c (open_share, close_share): New functions to handle SHARE.
	* unix.c (open_external): Handle READONLY. Call open_share.
	* close.c (st_close): Call close_share.

	gcc/testsuite/
	* dec_io_1.f90: New test.
        * dec_io_2.f90: New test.
        * dec_io_3.f90: New test.
        * dec_io_4.f90: New test.
        * dec_io_5.f90: New test.
        * dec_io_6.f90: New test.

From-SVN: r241550

re PR libfortran/77828 (Linking gfortran-7 compiled program with libgfortran of 5.x allowed but crashes when containing write to string)

2016-10-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/77828
	* io/io.h (st_parameter_dt): Reorder for readability and sanity.
	* io/transfer.c (data_transfer_init): Remove TODO and enable the
	runtime error message, rec= specifier not allowed in STREAM
	access.
	* libtool-version: Bump major version of libgfortran to 4.

	* ioparm.def: Reorder dt parameters to match libgfortran.
	* libgfortran.h: Swap definitions of GFC_INTERNAL_UNIT and
	GFC_INTERNAL_UNIT4.

From-SVN: r241497

2016-10-21  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/78055
	* io/io.h (st_parameter_dt): Restore GFC_IO_INT to maintain
	alignment.

From-SVN: r241422

2016-10-20  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	* io/transfer.c (finalize_transfer): Free format data in child
	procedures. (st_read_done, st_write_done): Don't free format
	hash table.

From-SVN: r241392

2016-10-17  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/48298
	* io/io.h: Move size_used from dtp to unit structure. Add bool
	has_size to unit structure.
	* read.c (read_x): Use has_size and size_used.
	* transfer.c (read_sf_internal,read_sf,read_block_form,
	read_block_form4): Likewise.
	(data_transfer_init): If parent, initialize the size variables.
	(finalize_transfer): Set the size variable using size_used in
	gfc_unit. (write_block): Delete bogus/dead code.

	* gfortran.dg/dtio_17.f90: New test.

From-SVN: r241294

Improve error message, and remove a redundant check, as the same check is
done a bit earlier due to the PR 48587 patch.

2016-10-16  Janne Blomqvist  <jb@gcc.gnu.org>

        PR libfortran/48587
        * io/transfer.c (data_transfer_init): Improve error message,
        remove redundant check.

Regtested on x86_64-pc-linux-gnu.

From-SVN: r241211

Currently GFortran newer reuses unit numbers allocated with NEWUNIT=,
instead having a simple counter that is decremented each time such a
unit is opened.  For a long running program which repeatedly opens
files with NEWUNIT= and closes them, the counter can wrap around and
cause an abort.  This patch replaces the counter with an allocator
that keeps track of which units numbers are allocated, and can reuse
them once they have been deallocated.  Since operating systems tend to
limit the number of simultaneous open files for a process to a
relatively modest number, a relatively simple approach with a linear
scan through an array suffices.  Though as a small optimization there
is a low water indicator keeping track of the index for which all unit
numbers below are already allocated.  This linear scan also ensures
that we always allocate the smallest available unit number.

2016-10-15  Janne Blomqvist  <jb@gcc.gnu.org>

        PR libfortran/48587
        * io/io.h (get_unique_unit_number): Remove prototype.
        (newunit_alloc): New prototype.
        * io/open.c (st_open): Call newunit_alloc.
        * io/unit.c (newunits,newunit_size,newunit_lwi): New static
        variables.
        (GFC_FIRST_NEWUNIT): Rename to NEWUNIT_START.
        (next_available_newunit): Remove variable.
        (get_unit): Call newunit_alloc, don't try to create negative
        external unit.
        (close_unit_1): Call newunit_free.
        (close_units): Free newunits array.
        (get_unique_number): Remove function.
        (newunit_alloc): New function.
        (newunit_free): New function.
        * io/transfer.c (data_transfer_init): Check for invalid unit
        number.

testsuite ChangeLog:

2016-10-15  Janne Blomqvist  <jb@gcc.gnu.org>

        PR libfortran/48587
        * gfortran.dg/negative_unit2.f90: New testcase.

From-SVN: r241199

Many POSIX systems have the bad habit of not restarting interrupted
syscalls. On these systems it's up to the user to check for an error
with errno == EINTR and restart manually. This patch does this for
libgfortran, so that GFortran users don't have to do it.

2016-10-09  Janne Blomqvist  <jb@gcc.gnu.org>

        PR libfortran/67585
        * io/io.h: TEMP_FAILURE_RETRY: Define macro if not found.
        * io/unix.c (raw_read): Handle EINTR.
        (raw_write): Check for return value -1.
        (raw_seek): Handle EINTR.
        (raw_tell): Likewise.
        (raw_size): Likewise.
        (raw_truncate): Likewise.
        (raw_close): Likewise.
        (buf_flush): Call raw_seek instead of lseek.
        (buf_read): Likewise.
        (buf_write): Likewise.
        (fd_to_stream): Handle EINTR.
        (tempfile_open): Likewise.
        (regular_file2): Likewise.
        (compare_file_filename): Likewise.
        (find_file): Likewise.
        (inquire_sequential): Likewise.
        (inquire_direct): Likewise.
        (inquire_formatted): Likewise.

From-SVN: r240902

2016-10-05  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/77868
	* io/inquire.c (inquire_via_unit): NULL guard the check for
	internal unit passed into child IO procedure.

	* gfortran.dg/dtio_15.f90: Fix spaces in dg-do.
	* gfortran.dg/class_array_20.f03: Likewise.
	* gfortran.dg/class_array_21.f03: Likewise.
	* gfortran.dg/finalize_29.f08: Likewise.
	* gfortran.dg/unlimited_polymorphic_23.f90: Likewise.

From-SVN: r240794

	io/inquire.c (inquire_via_unit): Add check for internal unit
	passed into child IO procedure.

From-SVN: r240768

gcc/testsuite/ChangeLog:

2016-10-01  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/77663
	* gfortran.dg/coarray_send_by_ref_1.f08: New test.

libgfortran/ChangeLog:

2016-10-01  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/77663
	* caf/single.c (caf_internal_error): Fix not terminating va-list.
	(_gfortran_caf_register): Free memory also when other allocs failed.
	(_gfortran_caf_get_by_ref): Fixed style.
	(send_by_ref): Token is now stored at the correct position preventing
	inaccessible tokens, memory loss and possibly crashes.

From-SVN: r240695

2016-09-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/77707
	io/transfer.c (next_record): Flush before calculating next_record.
	Correctly calculate.

From-SVN: r240592

2016-09-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/48298
	* io/inquire.c (inquire_via_unit): Adjust error check for the
	two possible internal unit KINDs.
	* io/io.h: Adjust defines for is_internal_unit and
	is_char4_unit. (gfc_unit): Add internal unit data to structure.
	(get_internal_unit): Change declaration to set_internal_unit.
	(free_internal_unit): Change name to stash_internal_unit_number.
	(get_unique_unit_number): Adjust parameter argument.
	Define IOPARM_DT_HAS_UDTIO. (gfc_saved_unit): New structure.
	* io/list_read.c (next_char_internal): Use is_char4_unit.
	* io/open.c (st_open): Adjust call to get_unique_unit_number.
	* io/transfer.c (write_block): Use is_char4_unit.
	(data_transfer_init): Update check for unit numbers.
	(st_read_done): Free the various allocated memories used for the
	internal units and stash the negative unit number and pointer to unit
	structure to allow reuse. (st_write_done): Likewise stash the freed
	unit.
	* io/unit.c: Create a fixed size buffer of 16 gfc_saved_unit's to use
	as a stack to save newunit unit numbers and unit structure for reuse.
	(get_external_unit): Change name to get_gfc_unit to better
	reflect what it does. (find_unit): Change call to get_gfc_unit.
	(find_or_create_unit): Likewise. (get_internal_unit): Change
	name to set_internal_unit. Move internal unit from the dtp
	structure to the gfc_unit structure so that it can be passed to
	child I/O statements through the UNIT.
	(free_internal_unit): Change name to stash_internal_unit_number.
	Push the common.unit number onto the newunit stack, saving it
	for possible reuse later. (get_unit): Set the internal unit
	KIND. Use get_unique_unit_number to get a negative unit number
	for the internal unit. Use get_gfc_unit to get the unit structure
	and use set_internal_unit to initialize it.
	(init_units): Initialize the newunit stack.
	(get_unique_unit_number): Check the stack for an available unit
	number and use it. If none there get the next most negative
	number. (close_units): Free any unit structures pointed to from the save
	stack.

2016-09-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/48298
	* gfortran.h (gfc_dt): Add *udtio.
	* ioparm.def: Add bit IOPARM_dt_f2003 to align with library use of bit
	25. Add IOPARM_dt_dtio bit to common flags.
	* resolve.c (resolve_transfer): Set dt->udtio to expression.
	* io.c (gfc_match_inquire): Adjust error message for internal
	unit KIND.
	* libgfortran.h: Adjust defines for GFC_INTERNAL_UNIT4,
	GFC_INTERNAL_UNIT, and GFC_INVALID_UNIT.
	* trans-io.c (build_dt): Set common_unit to reflect the KIND of
	the internal unit. Set mask bit for presence of dt->udtio.

2016-09-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/48298
	* gfortran.dg/negative_unit_check.f90: Update test.
	* gfortran.dg/dtio_14.f90: New test.

From-SVN: r240456

2016-09-21  Janne Blomqvist  <jb@gcc.gnu.org>

	* intrinsics/random.c (getosrandom): Use rand_s() on
	MinGW-w64. Fix bounds overflow in fallback code.

From-SVN: r240309

libgfortran/ChangeLog:

2016-09-19  Andre Vehreschild  <vehre@gcc.gnu.org>

	* caf/libcaf.h: Add caf_reference_type.
	* caf/mpi.c: Adapted signature of caf_register().
	* caf/single.c (struct caf_single_token): Added to keep the pointer
	to the memory registered and array descriptor.
	(caf_internal_error): Added convenience interface.
	(_gfortran_caf_register): Adapted to work with caf_single_token and
	return memory in the array descriptor.
	(_gfortran_caf_deregister): Same.
	(assign_char1_from_char4): Fixed style.
	(convert_type): Fixed incorrect conversion.
	(_gfortran_caf_get): Adapted to work with caf_single_token.
	(_gfortran_caf_send): Same.
	(_gfortran_caf_sendget): Same.
	(copy_data): Added to stop repeating it in all _by_ref functions.
	(get_for_ref): Recursive getting of coarray data using a chain of
	references.
	(_gfortran_caf_get_by_ref): Driver for computing the memory needed for
	the get and checking properties of the operation.
	(send_by_ref): Same as get_for_ref but for sending data.
	(_gfortran_caf_send_by_ref): Same like caf_get_by_ref but for sending.
	(_gfortran_caf_sendget_by_ref): Uses get_by_ref and send_by_ref to
	implement sendget for reference chains.
	(_gfortran_caf_atomic_define): Adapted to work with caf_single_token.
	(_gfortran_caf_atomic_ref): Likewise.
	(_gfortran_caf_atomic_cas): Likewise.
	(_gfortran_caf_atomic_op): Likewise.
	(_gfortran_caf_event_post): Likewise.
	(_gfortran_caf_event_wait): Likewise.
	(_gfortran_caf_event_query): Likewise.
	(_gfortran_caf_lock): Likewise.
	(_gfortran_caf_unlock): Likewise.


gcc/testsuite/ChangeLog:

2016-09-19  Andre Vehreschild  <vehre@gcc.gnu.org>

	* gfortran.dg/coarray/alloc_comp_4.f90: New test.
	* gfortran.dg/coarray_38.f90:
	* gfortran.dg/coarray_alloc_comp_1.f08: New test.
	* gfortran.dg/coarray_alloc_comp_2.f08: New test.
	* gfortran.dg/coarray_allocate_7.f08: New test.
	* gfortran.dg/coarray_allocate_8.f08: New test.
	* gfortran.dg/coarray_allocate_9.f08: New test.
	* gfortran.dg/coarray_lib_alloc_1.f90: Adapted scan-tree-dumps to expect
	new caf_register.
	* gfortran.dg/coarray_lib_alloc_2.f90: Same.
	* gfortran.dg/coarray_lib_alloc_3.f90: Same.
	* gfortran.dg/coarray_lib_comm_1.f90: Adapted scan-tree-dumps to expect
	get_by_refs.
	* gfortran.dg/coarray_lib_token_3.f90: Same as for coarray_lib_alloc2.
	* gfortran.dg/coarray_lock_7.f90: Same.
	* gfortran.dg/coarray_poly_5.f90: Same.
	* gfortran.dg/coarray_poly_6.f90: Same.
	* gfortran.dg/coarray_poly_7.f90: Same.
	* gfortran.dg/coarray_poly_8.f90: Same.
	* gfortran.dg/coindexed_1.f90: Changed errors expected.

gcc/fortran/ChangeLog:

2016-09-19  Andre Vehreschild  <vehre@gcc.gnu.org>

	* expr.c (gfc_check_assign): Added flag to control whether datatype
	conversion is allowed.
	* gfortran.h: Added caf-token-tree to gfc_component.  Changed
	prototypes mostly to add whether datatype conversion is allowed.
	* gfortran.texi: Added documentation for the caf_reference_t and the
	caf_*_by_ref function.
	* primary.c (caf_variable_attr): Similar to gfc_variable_attr but
	focused on the needs of coarrays.
	(gfc_caf_attr): Same.
	* resolve.c (resolve_ordinary_assign): Set the conversion allowed
	flag when not in a coarray.
	* trans-array.c (gfc_array_init_size): Moved setting of array
	descriptor's datatype before the alloc, because caf_register needs it.
	(gfc_array_allocate): Changed notion of whether an array is a coarray.
	(gfc_array_deallocate): Same.
	(gfc_alloc_allocatable_for_assignment): Added setting of coarray's
	array descriptor datatype before the register.  And using deregister/
	register to mimmick a realloc for coarrays.
	* trans-decl.c (gfc_build_builtin_function_decls): Corrected signatures
	of old caf-functions and added signature definitions of the _by_ref
	ones.
	(generate_coarray_sym_init): Adapted to new caf_register signature.
	* trans-expr.c (gfc_conv_scalar_to_descriptor): Make sure a constant
	is translated to an lvalue expression before use in an array
	descriptor.
	(gfc_get_ultimate_alloc_ptr_comps_caf_token): New function.  Get the
	last allocatable component's coarray token.
	(gfc_get_tree_for_caf_expr): For top-level object get the coarray
	token and check for unsupported features.
	(gfc_get_caf_token_offset): Getting the offset might procude new
	statements, which now are stored in the pre and post of the current se.
	(gfc_caf_get_image_index): For this image return a call to
	caf_this_image.
	(expr_may_alias_variables): Check that the result is set for testing
	its properties.
	(alloc_scalar_allocatable_for_assignment): Added auto allocation of
	coarray components.
	(gfc_trans_assignment_1): Rewrite an assign to a coarray object to
	be a sendget.
	* trans-intrinsic.c (conv_caf_vector_subscript_elem): Corrected
	wrong comment.
	(compute_component_offset): Compute the correct offset a structure
	member.
	(conv_expr_ref_to_caf_ref): Convert to a chain of refs into
	caf_references.
	(gfc_conv_intrinsic_caf_get): Call caf_get_by_ref instead of caf_get.
	(conv_caf_send): Call caf_*_by_ref for coarrays that need
	reallocation.
	(gfc_conv_intrinsic_function): Adapted to new signuature of the caf
	drivers.
	(conv_intrinsic_atomic_op): Add pre and post statements correctly.
	(conv_intrinsic_atomic_ref): Same.
	(conv_intrinsic_atomic_cas): Same.
	(conv_intrinsic_event_query): Same.
	* trans-stmt.c (gfc_trans_lock_unlock): Same.
	(gfc_trans_event_post_wait): Same.
	(gfc_trans_allocate): Support allocation of allocatable coarrays.
	(gfc_trans_deallocate): And there deallocation.
	* trans-types.c (gfc_typenode_for_spec): Added flag to control whether
	a component is part of coarray.  When so, then add space to store a
	coarray token.
	(gfc_build_array_type): Same.
	(gfc_get_array_descriptor_base): Same.
	(gfc_get_array_type_bounds): Same.
	(gfc_sym_type): Same.
	(gfc_get_derived_type): Same.
	(gfc_get_caf_reference_type): Declare the caf_reference_type.
	* trans-types.h: Prototype changes only.
	* trans.c (gfc_allocate_using_lib): Use the updated caf_register
	signature.
	(gfc_allocate_allocatable): Same.
	(gfc_deallocate_with_status): Same.
	* trans.h: Defined the runtime types for caf_reference_t and the enums.

From-SVN: r240231

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77507
	* intrinsic.c (add_functions):  Use correct keyword.

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77507
 	* ieee/ieee_arithmetic.F90 (IEEE_VALUE_4,IEEE_VALUE_8,IEEE_VALULE_10,
	IEEE_VALUE_16):  Use correct keyword.

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77507
	* gfortran.dg/pr77507.f90: New test.

From-SVN: r240050

From-SVN: r240019

2016-09-06  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/77393
	* io/write_float.def (build_float_string): Recognize when the
	result will not fit in the user provided, star fill, and exit
	early.

	* gfortran.dg/fmt_f0_2.f90: Update test.
	* gfortran.dg/fmt_f0_3.f90: New test.

From-SVN: r240018

2016-08-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/77393
	* io/write.c (kind_from_size): New function to calculate required buffer
	size based on kind type. (select_buffer, select_string): Use new
	function. (write_float_0, write_real, write_real_g0, write_complex):
	Adjust calls to pass parameters needed by new function.

From-SVN: r239900

2016-08-31  Paul Thomas  <pault@gcc.gnu.org>
	Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/48298

	* decl.c (access_attr_decl): Include case INTERFACE_DTIO as
	appropriate.
	* gfortran.h : Add INTRINSIC_FORMATTED and
	INTRINSIC_UNFORMATTED to gfc_intrinsic_op. Add INTERFACE_DTIO
	to interface type. Add new enum 'dtio_codes'. Add bitfield
	'has_dtio_procs' to symbol_attr. Add prototypes
	'gfc_check_dtio_interfaces' and 'gfc_find_specific_dtio_proc'.
	* interface.c (dtio_op): New function.
	(gfc_match_generic_spec): Match generic DTIO interfaces.
	(gfc_match_interface): Treat DTIO interfaces in the same way as
	(gfc_current_interface_head): Add INTERFACE_DTIO appropriately.
	(check_dtio_arg_TKR_intent): New function.
	(check_dtio_interface1): New function.
	(gfc_check_dtio_interfaces): New function.
	(gfc_find_specific_dtio_proc): New function.
	* io.c : Add FMT_DT to format_token.
	(format_lex): Handle DTIO formatting.
	* match.c (gfc_op2string): Add DTIO operators.
	* resolve.c (derived_inaccessible): Ignore pointer components
	to enclosing derived type.
	(resolve_transfer): Resolve transfers that involve DTIO.
	procedures. Find the specific subroutine for the transfer and
	use its existence to over-ride some of the constraints on
	derived types. If the transfer is recursive, require that the
	subroutine be so qualified.
	(dtio_procs_present): New function.
	(resolve_fl_namelist): Remove inhibition of polymorphic objects
	in namelists if DTIO read and write subroutines exist. Likewise
	for derived types.
	(resolve_types): Invoke 'gfc_verify_dtio_procedures'.
	* symbol.c : Set 'dtio_procs' using 'minit'.
	* trans-decl.c (gfc_finish_var_decl): If a derived-type/class
	object is associated with DTIO procedures, make it TREE_STATIC.
	* trans-expr.c (gfc_get_vptr_from_expr): If the expression
	drills down to a PARM_DECL, extract the vptr correctly.
	(gfc_conv_derived_to_class): Check 'info' in the test for
	'useflags'. If the se expression exists and is a pointer, use
	it as the class _data.
	* trans-io.c : Add IOCALL_X_DERIVED to iocall and the function
	prototype. Likewise for IOCALL_SET_NML_DTIO_VAL.
	(set_parameter_tree): Renamed from 'set_parameter_const', now
	returns void and has new tree argument. Calls modified to match
	new interface.
	(transfer_namelist_element): Transfer DTIO procedure pointer
	and vpointer using the new function IOCALL_SET_NML_DTIO_VAL.
	(get_dtio_proc): New function.
	(transfer_expr): Add new argument for the vptr field of class
	objects. Add the code to call the specific DTIO proc, convert
	derived types to class and call IOCALL_X_DERIVED.
	(trans_transfer): Add BT_CLASS to structures for treatment by
	the scalarizer. Obtain the vptr for the dynamic type, both for
	scalar and array transfer.

2016-08-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	Paul Thomas  <pault@gcc.gnu.org>

	PR libgfortran/48298
	* gfortran.map : Flag _st_set_nml_dtio_var and
	_gfortran_transfer_derived.
	* io/format.c (format_lex): Detect DTIO formatting.
	(parse_format_list): Parse the DTIO format.
	(next_format): Include FMT_DT.
	* io/format.h : Likewise. Add structure 'udf' to structure
	'fnode' to carry the IOTYPE string and the 'vlist'.
	* io/io.h : Add prototypes for the two types of DTIO subroutine
	and a typedef for gfc_class. Also, add to 'namelist_type'
	fields for the pointer to the DTIO procedure and the vtable.
	Add fields to struct st_parameter_dt for pointers to the two
	types of DTIO subroutine. Add to gfc_unit DTIO specific fields.
	(internal_proto): Add prototype for 'read_user_defined' and
	'write_user_defined'.
	* io/list_read.c (check_buffers): Use the 'current_unit' field.
	(unget_char): Likewise.
	(eat_spaces): Likewise.
	(list_formatted_read_scalar): For case BT_CLASS, call the DTIO
	procedure.
	(nml_get_obj_data): Likewise when DTIO procedure is present,.
	* io/transfer.c : Export prototypes for 'transfer_derived' and
	'transfer_derived_write'.
	(unformatted_read): For case BT_CLASS, call the DTIO procedure.
	(unformatted_write): Likewise.
	(formatted_transfer_scalar_read): Likewise.
	(formatted_transfer_scalar_write: Likewise.
	(transfer_derived): New function.
	(data_transfer_init): Set last_char if no child_dtio.
	(finalize_transfer): Return if child_dtio set.
	(st_write_done): Add condition for child_dtio not set.
	Add extra arguments for st_set_nml_var prototype.
	(set_nml_var): New function that contains the contents of the
	old version of st_set_nml_var. Also sets the 'dtio_sub' and
	'vtable' fields of the 'nml' structure.
	(st_set_nml_var): Now just calls set_nml_var with 'dtio_sub'
	and 'vtable' NULL.
	(st_set_nml_dtio_var): New function that calls set_nml_var.
	* io/unit.c (get_external_unit): If the found unit child_dtio
	is non zero, don't do any mutex locking/unlocking.  Just
	return the unit.
	* io/unix.c (tempfile_open): Revert to C style comment.
	* io/write.c (list_formatted_write_scalar): Do the DTIO call.
	(nml_write_obj): Add BT_CLASS and do the DTIO call.

2016-08-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/48298
	* gfortran.dg/dtio_1.f90: New test.
	* gfortran.dg/dtio_2.f90: New test.
	* gfortran.dg/dtio_3.f90: New test.
	* gfortran.dg/dtio_4.f90: New test.
	* gfortran.dg/dtio_5.f90: New test.
	* gfortran.dg/dtio_6.f90: New test.
	* gfortran.dg/dtio_7.f90: New test.
	* gfortran.dg/dtio_8.f90: New test.
	* gfortran.dg/dtio_9.f90: New test.
	* gfortran.dg/dtio_10.f90: New test.

From-SVN: r239880

	* configure.ac (nvptx-*): Hardwire newlib.
	* configure: Rebuilt.

From-SVN: r239836

libgfortran:
2016-08-19  Janne Blomqvist  <jb@gcc.gnu.org>

        * intrinsics/random.c (xor_keys): New array with "secret" keys.
        (scramble_seed): XOR given seed with xor_keys array rather than
        shuffling bytes.
        (unscramble_seed): Remove function.
        (random_seed_i4): Use new scramble_seed.
        (random_seed_i8): Likewise.

frontend:
2016-08-19  Janne Blomqvist  <jb@gcc.gnu.org>

        * intrinsics.texi (RANDOM_NUMBER): Remove reference to
        init_random_seed in example.
        (RANDOM_SEED): Remove warning to not set all seed values to 0.

From-SVN: r239613

libgfortran:

2016-08-16  Janne Blomqvist  <jb@gcc.gnu.org>

        * intrinsics/random.c (master_init): New variable.
        (init_rand_state): Move below getosrandom (), maybe initialize
        master_state.
        (random_seed_i4): If called with no arguments, set master_init to
        false, and reinitialize. If called with PUT=, set master_init to
        true.
        (random_seed_i8): Likewise.

testsuite:

2016-08-16  Janne Blomqvist  <jb@gcc.gnu.org>

        * gfortran.dg/random_4.f90: Initialize seed before using, handle
        the last special seed value.
        * gfortran.dg/random_7.f90: Use size for last array member instead
        of hardcoded value.

From-SVN: r239611

	* intrinsics/random.c: Include <stdlib.h>.

From-SVN: r239375

frontend:

2016-08-11  Janne Blomqvist  <jb@gcc.gnu.org>

	* check.c (gfc_check_random_seed): Use new seed size in check.
	* intrinsic.texi (RANDOM_NUMBER): Updated documentation.
	(RANDOM_SEED): Likewise.


testsuite:

2016-08-11  Janne Blomqvist  <jb@gcc.gnu.org>

	* gfortran.dg/random_7.f90: Take into account that the last seed
	value is the special p value.
	* gfortran.dg/random_seed_1.f90: Seed size is now constant.


libgfortran:
2016-08-11  Janne Blomqvist  <jb@gcc.gnu.org>

	* intrinsics/random.c: Replace KISS with xorshift1024* using
	per-thread state.
	* runtime/main.c (init): Don't call random_seed_i4.

From-SVN: r239356

libgfortran/ChangeLog:

2016-07-22  Andre Vehreschild  <vehre@gcc.gnu.org>

	* caf/libcaf.h: Add parameter stat to caf_get() and
	caf_send()'s function prototypes.
	* caf/single.c (_gfortran_caf_get): Implement reporting
	error using stat instead of abort().
	(_gfortran_caf_send): Same.
	(_gfortran_caf_sendget): Use NULL for stat when calling
	caf_send().


gcc/testsuite/ChangeLog:

2016-07-22  Andre Vehreschild  <vehre@gcc.gnu.org>

	* gfortran.dg/coarray_stat_2.f90: New test.

From-SVN: r238636

2016-06-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/48852
	* io/write.c: Cleaned up whitespace.
	(write_d, write_e, write_f, write_es, write_en): Use new helper function
	write_float_0. (write_float_0): New helper function.
	(get_precision, select_buffer, select_string, write_float_string): New
	helper functions used in remaining float writing functions. Helper function
	write_float_string now contains code for writing to kind=4 character
	internal units.
	(write_real): Modified to establish working buffers at this level and to
	use new helper functions.
	(write_real_g0): Likewise modified.
	(write_complex): Likewise modified. Gets both float strings before
	output so that final lengths can be determined which allows right
	justifying the complex number with no intervening spaces.
	* io/write_float.def (build_float_string): Renamed from previosly
	output_float, modified to use buffers passed in from higher functions,
	builds a null terminated string of the floating point value. Character
	kind=4 code eliminated.
	(write_infnan): Likewise modified to use incoming buffers and eliminate
	kind=4 related code.
	(OUTPUT_FLOAT_FMT_G): Deleted, functionality moved into FORMAT_FLOAT.
	(FORMAT_FLOAT): Renamed macro from WRITE_FLOAT. Use build_float_string.
	(get_float_string): Renamed from write_float, uses FORMAT_FLOAT macro.
	Buffer allocation removed, now at higher level.

	PR libgfortran/48852
	* gfortran.dg/char4_iunit_1.f03: Update test.
	* gfortran.dg/f2003_io_5.f03: Update test.
	* gfortran.dg/real_const_3.f90: Update test.

From-SVN: r237735

2016-05-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/71123
	* io/list_read (eat_spaces): Eat '\r' as part of spaces.
        fix change log

From-SVN: r236629

2016-05-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/70684
	* io/list_read (eat_spaces): Eat '\r' as part of spaces.

	* gfortran.dg/namelist_90.f: New test

From-SVN: r236628

2016-04-19  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/70684
	* io/list_read (check_buffers): Add '\r' to check for end of line.
	factor.

	* gfortran.dg/list_read_14.f90: New test.

From-SVN: r235220

2016-03-30  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	    Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR libgfortran/70235
	* io/write_float.def: Fix PF format for negative values of the scale
	factor.

2016-03-30  Dominique d'Humieres  <dominiq@lps.ens.fr>
	    Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	* gfortran.dg/fmt_pf.f90: New test.

From-SVN: r234600

From-SVN: r234502

2016-02-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/69456
	* io/list_read.c (read_real): If digit is missing from exponent issue
	an error. (parse_real): Likewise and adjusted error message to clarify
	it is part of a complex number.
	(nml_read_obj): Bump item count and add comment that this is used to
	identify which item in a namelist read has a problem.

	PR libgfortran/69456
	* gfortran.dg/namelist_89.f90: New test.
	* gfortran.dg/pr59700.f90: Update test..

From-SVN: r233641

2016-02-17  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/69651
	* io/list_read.c (push_char4): Fix the pointer usage for xrealloc.

From-SVN: r233500