The warning that is disabled, only on this single line, has been
inspected and found to be not applicable; it is known that the size
of the buffer is safe.
libgfortran/ChangeLog:
2020-06-13 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/95313
* io/write.c (ztoa_big): Disable -Wstringop-overflow for one
line.
Change testcase to check error message (iomsg) at runtime, rather than to crash.
libgfortran/
PR fortran/95091
* io/transfer.c (finalize_transfer): Fix type in error message.
gcc/testsuite/
PR fortran/95195
* gfortran.dg/namelist_97.f90: Adjust testcase.
The initial commit for this PR uncovered a latent issue with unit locking
in the Fortran run-time library. Add check for valid unit.
2020-05-28 Harald Anlauf <anlauf@gmx.de>
libgfortran/
PR libfortran/95104
* io/unit.c (unlock_unit): Guard by check for NULL pointer.
Referencing a unit in a WAIT statement that has not been opened before
resulted in a NULL pointer dereference. Check for this condition.
2020-05-26 Harald Anlauf <anlauf@gmx.de>
libgfortran/
PR libfortran/95104
* io/transfer.c (st_wait_async): Do not dereference NULL pointer.
gcc/testsuite/
PR libfortran/95104
* gfortran.dg/pr95104.f90: New test.
Co-Authored-By: Steven G. Kargl <kargl@gcc.gnu.org>
gcc/fortran/ChangeLog:
2020-05-23 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/95191
* libgfortran.h (libgfortran_error_codes): Add
LIBERROR_BAD_WAIT_ID.
libgfortran/ChangeLog:
2020-05-23 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/95191
* io/async.c (async_wait_id): Generate error if ID is higher
than the highest current ID.
* runtime/error.c (translate_error): Handle LIBERROR_BAD_WAIT_ID.
libgomp/ChangeLog:
2020-05-23 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/95191
* testsuite/libgomp.fortran/async_io_9.f90: New test.
2020-05-14 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/95119
* io/close.c (close_status): Add CLOSE_INVALID.
(st_close): Return early on invalid STATUS parameter.
2020-05-14 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/95119
* testsuite/libgomp.fortran/close_errors_1.f90: New test.
2020-02-18 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/93599
* io/async.c (destroy_adv_cond): Do not destroy lock.
(async_io): Make sure au->lock is locked for finishing of thread.
Do not lock/unlock around signalling emptysignal. Unlock au->lock
before return.
(init_adv_cond): Do not initialize lock.
(enqueue_transfer): Unlock after signal.
(enqueue_done_id): Likewise.
(enqueue_done): Likewise.
(enqueue_close): Likewise.
(enqueue_data_transfer): Likewise.
(async_wait_id): Do not lock/unlock around signalling au->work.
(async_wait): Unlock after signal.
* io/async.h (SIGNAL): Add comment about needed au->lock.
Remove locking/unlocking of advcond->lock.
(WAIT_SIGNAL_MUTEX): Add comment. Remove locking/unlocking of
advcond->lock. Unlock mutex only at the end. Loop on
__ghread_cond_wait returning zero.
(REVOKE_SIGNAL): Add comment. Remove locking/unlocking of
advcond->lock.
(struct adv_cond): Remove mutex from struct.
asdf
PR libfortran/90374
* io/format.c (parse_format_list): Zero width not allowed with
FMT_D.
* io/write_float.def (build_float_string): Include range of
higher exponent values that require wider width.
PR libfortran/90274
* io/format.c (parse_format_list): Implement the E0 exponent
width to provide smallest possible width for exponent fields.
Refactor code for correct parsing and better readability of the
code.
* io/io.h (write_real_w0): Change interface to pass in pointer
to fnode.
* io/transfer.c: Update all calls to write_real_w0 to use the
new interface.
* io/write.c ((write_real_w0): Use the new interface with fnode
to access both the decimal precision and exponent widths used in
build_float_string.
* io/write_float.def (build_float_string): Use the passed in
exponent width to calculate the used width in the case of E0.
From-SVN: r279828
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.
From-SVN: r278660
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.
2019-11-23 Thomas Koenig <tkoenig@gcc.gnu.org>
Harald Anlauf <anlauf@gmx.de>
PR fortran/92569
* gfortran.dg/eof_6.f90: New test.
Co-Authored-By: Harald Anlauf <anlauf@gmx.de>
From-SVN: r278659
2019-11-06 Jerry DeLisle <jvdelisle@gcc.ngu.org>
PR fortran/90374
* io.c (check_format): Allow zero width for D, E, EN, and ES
specifiers as default and when -std=F2018 is given. Retain
existing errors when using the -fdec family of flags.
* libgfortran/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.
* gfortran.dg/fmt_error_10.f: Modify for new constraints.
* gfortran.dg/fmt_error_7.f: Add dg-options "-std=f95".
* gfortran.dg/fmt_error_9.f: Modify for new constraints.
* gfortran.dg/fmt_zero_width.f90: New test.
From-SVN: r277905
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.
From-SVN: r276439
In my original patch to fix PR 53796 I forgot to fix the behavior for
unconnected units when inquiring via filename. This patch fixes that.
Regtested on x86_64-pc-linux-gnu, committed as obvious.
libgfortran/ChangeLog:
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.
gcc/testsuite/ChangeLog:
2019-08-07 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/53796
* gfortran.dg/inquire_recl_f2018.f90: Test for unconnected unit
with inquire via filename.
From-SVN: r274160
2019-07-21 Thomas König <tkoenig@gcc.gnu.org>
PR libfortran/91030
* gfortran.texi (GFORTRAN_FORMATTED_BUFFER_SIZE): Document
(GFORTRAN_UNFORMATTED_BUFFER_SIZE): Likewise.
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.
From-SVN: r273643
gcc/fortran ChangeLog:
2019-05-22 Jeff Law <law@redhat.com>
Mark Eggleston <mark.eggleston@codethink.com>
PR fortran/89100
* gfortran.texi: Add Default widths for F, G and I format
descriptors to Extensions section.
* invoke.texi: Add -fdec-format-defaults
* io.c (check_format): Use default widths for i, f and g when
flag_dec_format_defaults is enabled.
* lang.opt: Add new option.
* options.c (set_dec_flags): Add SET_BITFLAG for
flag_dec_format_defaults.
gcc/testsuite ChangeLog:
2019-05-22 Mark Eggleston <mark.eggleston@codethink.com>
PR fortran/89100
* gfortran.dg/fmt_f_default_field_width_1.f90: New test.
* gfortran.dg/fmt_f_default_field_width_2.f90: New test.
* gfortran.dg/fmt_f_default_field_width_3.f90: New test.
* gfortran.dg/fmt_g_default_field_width_1.f90: New test.
* gfortran.dg/fmt_g_default_field_width_2.f90: New test.
* gfortran.dg/fmt_g_default_field_width_3.f90: New test.
* gfortran.dg/fmt_i_default_field_width_1.f90: New test.
* gfortran.dg/fmt_i_default_field_width_2.f90: New test.
* gfortran.dg/fmt_i_default_field_width_3.f90: New test.
libgfortran ChangeLog:
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.
From-SVN: r271511
As of Fortran 2018 it's allowed to open the same file on multiple
units.
libgfortran/ChangeLog:
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.
testsuite/ChangeLog:
2019-05-15 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/90461
* gfortran.dg/open_errors_2.f90: Add -std=f2008, adjust line number.
* gfortran.dg/open_errors_3.f90: New test.
From-SVN: r271260
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.
From-SVN: r268319
2019-01-26 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/88020
* io/close.c (st_close): Generate error if calls to 'remove' return
an error.
From-SVN: r268301
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.
* gfortran.dg/namelist_96.f90: New test.
From-SVN: r267910
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.
From-SVN: r267898
2018-12-09 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/88411
* io/transfer.c (dta_transfer_init): Do not treat as an
asynchronous statement unless the statement has
ASYNCHRONOUS="YES".
(st_write_done): Likewise.
(st_read_done): Do not perform async_wait for synchronous I/O
on an async unit.
(st_read_done): Likewise.
2018-12-09 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/88411
* testsuite/libgomp.fortran/async_io_8.f90: New test.
From-SVN: r266929
The old __sync builtins have been deprecated for a long time now in
favor of the __atomic builtins following the C++11/C11 memory model.
This patch converts libgfortran to use the modern __atomic builtins.
At the same time I weakened the consistency to relaxed for
incrementing and decrementing the counter, and acquire-release when
decrementing to check whether the counter is 0 and the unit can be
freed. This is similar to e.g. std::shared_ptr in C++.
Regtested on x86_64-pc-linux-gnu.
libgfortran/ChangeLog:
2018-11-22 Janne Blomqvist <jb@gcc.gnu.org>
* acinclude.m4 (LIBGFOR_CHECK_ATOMIC_FETCH_ADD): Rename and test
presence of atomic builtins instead of sync builtins.
* configure.ac (LIBGFOR_CHECK_ATOMIC_FETCH_ADD): Call new test.
* io/io.h (inc_waiting_locked): Use __atomic_fetch_add.
(predec_waiting_locked): Use __atomic_add_fetch.
(dec_waiting_unlocked): Use __atomic_fetch_add.
* config.h.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
From-SVN: r266367
2018-11-08 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/78351
* io/transfer.c (read_sf_internal): Add support for early
comma termination of internal unit formatted reads.
* gfortran.dg/read_legacy_comma.f90: New test.
From-SVN: r265946
This patch cleans up a few places where I noticed the code was still
using int instead gfc_charlen_type for string lengths. Regtested on
x86_64-pc-linux-gnu, committed as obvious.
libgfortran/ChangeLog:
2018-10-06 Janne Blomqvist <jb@gcc.gnu.org>
* io/unix.c (compare_file_filename): Use gfc_charlen_type instead
of int for string length.
(inquire_sequential): Likewise.
(inquire_direct): Likewise.
(inquire_formatted): Likewise.
(inquire_unformatted): Likewise.
(inquire_access): Likewise.
(inquire_read): Likewise.
(inquire_write): Likewise.
(inquire_readwrite): Likewise.
* io/unix.h (compare_file_filename): Likewise.
(inquire_sequential): Likewise.
(inquire_direct): Likewise.
(inquire_formatted): Likewise.
(inquire_unformatted): Likewise.
(inquire_read): Likewise.
(inquire_write): Likewise.
(inquire_readwrite): Likewise.
From-SVN: r264901
I've been tracking down a bug in a Fortran program on a newlib target and it boils down to fallback_access doing something bad.
The unconditional calls to close cause havoc when open doesn't get called due to the short-circuiting in the if-statement above
because the fd is uninitialised. In my environment GCC ends up calling close on file descriptor 0, thus trying to close stdin.
This patch tightens up the calling so that close is called only when the corresponding open call succeeded.
With this my runtime failure disappears.
Bootstrapped and tested on aarch64-none-linux-gnu.
Though that doesn't exercise this call I hope it's an obviously correct change.
* io/unix.c (fallback_access): Avoid calling close on
uninitialized file descriptor.
From-SVN: r264305
2018-09-01 Jerry DeLisle <jvdelisle@gcc.gnu.org>
* io/io.h: Change declaration of vlist type to
gfc_full_array_i4 to eliminate warning for mismatched type.
* io/format.c ((parse_format_list): Use gfc_full_array_i4.
* io/io.h: Use gfc_full_array_i4.
From-SVN: r264043
2018-08-22 Thomas Koenig <tkoenig@gcc.gnu.org>
* gfortran.texi: Mention that asynchronous I/O does
not work on systems which lack condition variables, such
as AIX.
2018-08-22 Thomas Koenig <tkoenig@gcc.gnu.org>
* async.h: Set ASYNC_IO to zero if _AIX is defined.
(struct adv_cond): If ASYNC_IO is zero, the struct has no members.
(async_unit): If ASYNC_IO is zero, remove unneeded members.
From-SVN: r263788
2018-08-21 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* gfortran.texi: Add description of asynchronous I/O.
* trans-decl.c (gfc_finish_var_decl): Treat asynchronous variables
as volatile.
* trans-io.c (gfc_build_io_library_fndecls): Rename st_wait to
st_wait_async and change argument spec from ".X" to ".w".
(gfc_trans_wait): Pass ID argument via reference.
2018-08-21 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* gfortran.dg/f2003_inquire_1.f03: Add write statement.
* gfortran.dg/f2003_io_1.f03: Add wait statement.
2018-08-21 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* Makefile.am: Add async.c to gfor_io_src.
Add async.h to gfor_io_headers.
* Makefile.in: Regenerated.
* gfortran.map: Add _gfortran_st_wait_async.
* io/async.c: New file.
* io/async.h: New file.
* io/close.c: Include async.h.
(st_close): Call async_wait for an asynchronous unit.
* io/file_pos.c (st_backspace): Likewise.
(st_endfile): Likewise.
(st_rewind): Likewise.
(st_flush): Likewise.
* io/inquire.c: Add handling for asynchronous PENDING
and ID arguments.
* io/io.h (st_parameter_dt): Add async bit.
(st_parameter_wait): Correct.
(gfc_unit): Add au pointer.
(st_wait_async): Add prototype.
(transfer_array_inner): Likewise.
(st_write_done_worker): Likewise.
* io/open.c: Include async.h.
(new_unit): Initialize asynchronous unit.
* io/transfer.c (async_opt): New struct.
(wrap_scalar_transfer): New function.
(transfer_integer): Call wrap_scalar_transfer to do the work.
(transfer_real): Likewise.
(transfer_real_write): Likewise.
(transfer_character): Likewise.
(transfer_character_wide): Likewise.
(transfer_complex): Likewise.
(transfer_array_inner): New function.
(transfer_array): Call transfer_array_inner.
(transfer_derived): Call wrap_scalar_transfer.
(data_transfer_init): Check for asynchronous I/O.
Perform a wait operation on any pending asynchronous I/O
if the data transfer is synchronous. Copy PDT and enqueue
thread for data transfer.
(st_read_done_worker): New function.
(st_read_done): Enqueue transfer or call st_read_done_worker.
(st_write_done_worker): New function.
(st_write_done): Enqueue transfer or call st_read_done_worker.
(st_wait): Document as no-op for compatibility reasons.
(st_wait_async): New function.
* io/unit.c (insert_unit): Use macros LOCK, UNLOCK and TRYLOCK;
add NOTE where necessary.
(get_gfc_unit): Likewise.
(init_units): Likewise.
(close_unit_1): Likewise. Call async_close if asynchronous.
(close_unit): Use macros LOCK and UNLOCK.
(finish_last_advance_record): Likewise.
(newunit_alloc): Likewise.
* io/unix.c (find_file): Likewise.
(flush_all_units_1): Likewise.
(flush_all_units): Likewise.
* libgfortran.h (generate_error_common): Add prototype.
* runtime/error.c: Include io.h and async.h.
(generate_error_common): New function.
2018-08-21 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* testsuite/libgomp.fortran/async_io_1.f90: New test.
* testsuite/libgomp.fortran/async_io_2.f90: New test.
* testsuite/libgomp.fortran/async_io_3.f90: New test.
* testsuite/libgomp.fortran/async_io_4.f90: New test.
* testsuite/libgomp.fortran/async_io_5.f90: New test.
* testsuite/libgomp.fortran/async_io_6.f90: New test.
* testsuite/libgomp.fortran/async_io_7.f90: New test.
Co-Authored-By: Thomas Koenig <tkoenig@gcc.gnu.org>
From-SVN: r263750
2018-07-31 Andre Vieira <andre.simoesdiasvieira@arm.com>
Revert 'AsyncI/O patch committed'
2018-07-25 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* gfortran.texi: Add description of asynchronous I/O.
* trans-decl.c (gfc_finish_var_decl): Treat asynchronous variables
as volatile.
* trans-io.c (gfc_build_io_library_fndecls): Rename st_wait to
st_wait_async and change argument spec from ".X" to ".w".
(gfc_trans_wait): Pass ID argument via reference.
2018-07-31 Andre Vieira <andre.simoesdiasvieira@arm.com>
Revert 'AsyncI/O patch committed'
2018-07-25 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* gfortran.dg/f2003_inquire_1.f03: Add write statement.
* gfortran.dg/f2003_io_1.f03: Add wait statement.
2018-07-31 Andre Vieira <andre.simoesdiasvieira@arm.com>
Revert 'AsyncI/O patch committed'
2018-07-25 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* Makefile.am: Add async.c to gfor_io_src.
Add async.h to gfor_io_headers.
* Makefile.in: Regenerated.
* gfortran.map: Add _gfortran_st_wait_async.
* io/async.c: New file.
* io/async.h: New file.
* io/close.c: Include async.h.
(st_close): Call async_wait for an asynchronous unit.
* io/file_pos.c (st_backspace): Likewise.
(st_endfile): Likewise.
(st_rewind): Likewise.
(st_flush): Likewise.
* io/inquire.c: Add handling for asynchronous PENDING
and ID arguments.
* io/io.h (st_parameter_dt): Add async bit.
(st_parameter_wait): Correct.
(gfc_unit): Add au pointer.
(st_wait_async): Add prototype.
(transfer_array_inner): Likewise.
(st_write_done_worker): Likewise.
* io/open.c: Include async.h.
(new_unit): Initialize asynchronous unit.
* io/transfer.c (async_opt): New struct.
(wrap_scalar_transfer): New function.
(transfer_integer): Call wrap_scalar_transfer to do the work.
(transfer_real): Likewise.
(transfer_real_write): Likewise.
(transfer_character): Likewise.
(transfer_character_wide): Likewise.
(transfer_complex): Likewise.
(transfer_array_inner): New function.
(transfer_array): Call transfer_array_inner.
(transfer_derived): Call wrap_scalar_transfer.
(data_transfer_init): Check for asynchronous I/O.
Perform a wait operation on any pending asynchronous I/O
if the data transfer is synchronous. Copy PDT and enqueue
thread for data transfer.
(st_read_done_worker): New function.
(st_read_done): Enqueue transfer or call st_read_done_worker.
(st_write_done_worker): New function.
(st_write_done): Enqueue transfer or call st_read_done_worker.
(st_wait): Document as no-op for compatibility reasons.
(st_wait_async): New function.
* io/unit.c (insert_unit): Use macros LOCK, UNLOCK and TRYLOCK;
add NOTE where necessary.
(get_gfc_unit): Likewise.
(init_units): Likewise.
(close_unit_1): Likewise. Call async_close if asynchronous.
(close_unit): Use macros LOCK and UNLOCK.
(finish_last_advance_record): Likewise.
(newunit_alloc): Likewise.
* io/unix.c (find_file): Likewise.
(flush_all_units_1): Likewise.
(flush_all_units): Likewise.
* libgfortran.h (generate_error_common): Add prototype.
* runtime/error.c: Include io.h and async.h.
(generate_error_common): New function.
2018-07-31 Andre Vieira <andre.simoesdiasvieira@arm.com>
Revert 'AsyncI/O patch committed'.
2018-07-25 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* testsuite/libgomp.fortran/async_io_1.f90: New test.
* testsuite/libgomp.fortran/async_io_2.f90: New test.
* testsuite/libgomp.fortran/async_io_3.f90: New test.
* testsuite/libgomp.fortran/async_io_4.f90: New test.
* testsuite/libgomp.fortran/async_io_5.f90: New test.
* testsuite/libgomp.fortran/async_io_6.f90: New test.
* testsuite/libgomp.fortran/async_io_7.f90: New test.
From-SVN: r263082
2018-07-25 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* gfortran.texi: Add description of asynchronous I/O.
* trans-decl.c (gfc_finish_var_decl): Treat asynchronous variables
as volatile.
* trans-io.c (gfc_build_io_library_fndecls): Rename st_wait to
st_wait_async and change argument spec from ".X" to ".w".
(gfc_trans_wait): Pass ID argument via reference.
2018-07-25 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* gfortran.dg/f2003_inquire_1.f03: Add write statement.
* gfortran.dg/f2003_io_1.f03: Add wait statement.
2018-07-25 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* Makefile.am: Add async.c to gfor_io_src.
Add async.h to gfor_io_headers.
* Makefile.in: Regenerated.
* gfortran.map: Add _gfortran_st_wait_async.
* io/async.c: New file.
* io/async.h: New file.
* io/close.c: Include async.h.
(st_close): Call async_wait for an asynchronous unit.
* io/file_pos.c (st_backspace): Likewise.
(st_endfile): Likewise.
(st_rewind): Likewise.
(st_flush): Likewise.
* io/inquire.c: Add handling for asynchronous PENDING
and ID arguments.
* io/io.h (st_parameter_dt): Add async bit.
(st_parameter_wait): Correct.
(gfc_unit): Add au pointer.
(st_wait_async): Add prototype.
(transfer_array_inner): Likewise.
(st_write_done_worker): Likewise.
* io/open.c: Include async.h.
(new_unit): Initialize asynchronous unit.
* io/transfer.c (async_opt): New struct.
(wrap_scalar_transfer): New function.
(transfer_integer): Call wrap_scalar_transfer to do the work.
(transfer_real): Likewise.
(transfer_real_write): Likewise.
(transfer_character): Likewise.
(transfer_character_wide): Likewise.
(transfer_complex): Likewise.
(transfer_array_inner): New function.
(transfer_array): Call transfer_array_inner.
(transfer_derived): Call wrap_scalar_transfer.
(data_transfer_init): Check for asynchronous I/O.
Perform a wait operation on any pending asynchronous I/O
if the data transfer is synchronous. Copy PDT and enqueue
thread for data transfer.
(st_read_done_worker): New function.
(st_read_done): Enqueue transfer or call st_read_done_worker.
(st_write_done_worker): New function.
(st_write_done): Enqueue transfer or call st_read_done_worker.
(st_wait): Document as no-op for compatibility reasons.
(st_wait_async): New function.
* io/unit.c (insert_unit): Use macros LOCK, UNLOCK and TRYLOCK;
add NOTE where necessary.
(get_gfc_unit): Likewise.
(init_units): Likewise.
(close_unit_1): Likewise. Call async_close if asynchronous.
(close_unit): Use macros LOCK and UNLOCK.
(finish_last_advance_record): Likewise.
(newunit_alloc): Likewise.
* io/unix.c (find_file): Likewise.
(flush_all_units_1): Likewise.
(flush_all_units): Likewise.
* libgfortran.h (generate_error_common): Add prototype.
* runtime/error.c: Include io.h and async.h.
(generate_error_common): New function.
2018-07-25 Nicolas Koenig <koenigni@gcc.gnu.org>
Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/25829
* testsuite/libgomp.fortran/async_io_1.f90: New test.
* testsuite/libgomp.fortran/async_io_2.f90: New test.
* testsuite/libgomp.fortran/async_io_3.f90: New test.
* testsuite/libgomp.fortran/async_io_4.f90: New test.
* testsuite/libgomp.fortran/async_io_5.f90: New test.
* testsuite/libgomp.fortran/async_io_6.f90: New test.
* testsuite/libgomp.fortran/async_io_7.f90: New test.
Co-Authored-By: Thomas Koenig <tkoenig@gcc.gnu.org>
From-SVN: r262978
2018-05-28 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/85840
* io/write.c (write_real, write_real_g0, write_complex): Use
separate local variables for the float string length.
From-SVN: r260851
