Commit Graph

23 Commits

Author SHA1 Message Date
peter klausler 17e2f236f0 [flang] Fix Boolean flag arguments
Two sites in io-api.cpp pass the wrong Boolean flag value to
signify that a new anonymous unit is a formatted file.

Differential Revision: https://reviews.llvm.org/D100419
2021-04-14 10:19:44 -07:00
peter klausler e81c96d6f8 [flang] Handle END= situations better in runtime input
Debug the input path for READ statements with END= labels;
don't emit errors when the program can handle them.
BeginReadingRecord() member functions have been made
"bool" for more convenient handling of error cases,
and some code in IoErrorHandler has been cleaned up.

Differential Revision: https://reviews.llvm.org/D100421
2021-04-14 09:34:14 -07:00
peter klausler e372e0f906 [flang] Implement reductions in the runtime
Add runtime APIs, implementations, and tests for ALL, ANY, COUNT,
MAXLOC, MAXVAL, MINLOC, MINVAL, PRODUCT, and SUM reduction
transformantional intrinsic functions for all relevant argument
and result types and kinds, both without DIM= arguments
(total reductions) and with (partial reductions).

Complex-valued reductions have their APIs in C so that
C's _Complex types can be used for their results.

Some infrastructure work was also necessary or noticed:
* Usage of "long double" in the compiler was cleaned up a
  bit, and host dependences on x86 / MSVC have been isolated
  in a new Common/long-double header.
* Character comparison has been exposed via an extern template
  so that reductions could use it.
* Mappings from Fortran type category/kind to host C++ types
  and vice versa have been isolated into runtime/cpp-type.h and
  then used throughout the runtime as appropriate.
* The portable 128-bit integer package in Common/uint128.h
  was generalized to support signed comparisons.
* Bugs in descriptor indexing code were fixed.

Differential Revision: https://reviews.llvm.org/D99666
2021-04-01 11:23:50 -07:00
peter klausler 61687f3a48 [flang] Fix buffering read->write transition
The buffer needs to be Reset() after a Flush(), since the
Flush() can be a no-op after a read->write transition.
And record numbers are 1-based, not 0-based.
This fixes a bug with rewrites of records that have been
recently read.

Differential revision: https://reviews.llvm.org/D88612
2020-10-01 16:57:38 -07:00
peter klausler e29c9d77f1 [flang] Fix WRITE after BACKSPACE
A WRITE to an unformatted sequential variable-length unit after
a BACKSPACE needs to forget its previous knowledge of the length
of the record that's about to be overwritten, and a BACKSPACE
after an ENDFILE or at the start of the file needs to be a no-op.

Differential revision: https://reviews.llvm.org/D88675
2020-10-01 10:33:31 -07:00
peter klausler cdfb95ad58 [flang] Add checks for misuse of formatted I/O APIs in unformatted I/O statement
Add checking to I/O statement APIs to catch cases where the formatted
I/O data item transfer routines like OutputInteger64 are being
incorrectly used for unformatted I/O, which should use the
unformatted block or descriptor-based data item interfaces.

Differential revision: https://reviews.llvm.org/D88672
2020-10-01 09:58:04 -07:00
peter klausler c963757783 [flang] Implement nonstandard OPEN statement CARRIAGECONTROL specifier
Differential Revision: https://reviews.llvm.org/D87052
2020-09-02 13:07:45 -07:00
peter klausler cc01194c2f [flang] Descriptor-based I/O data item transfers
Add support for OutputDescriptor() and InputDescriptor()
in the I/O runtime.  Change existing scalar formatted I/O
functions to drive descriptor-based I/O routines internally.

Differential Revision: https://reviews.llvm.org/D85491
2020-08-07 13:09:09 -07:00
peter klausler 675ad1bc6a [flang] Implement runtime support for INQUIRE statements
Differential Revision: https://reviews.llvm.org/D85166
2020-08-03 17:15:08 -07:00
peter klausler d879ac8a6e [flang] Defer "next input record" processing until handlers established
External input was detecting "end of file" conditions in
BeginExternal...Input() and BeginUnformattedInput() routines
before EnableHandlers() could have been called.  Defer the
"start next record" processing to the input data item
handlers (and EndIoStatement() for when there are no data
items).

Differential Revision: https://reviews.llvm.org/D85161
2020-08-03 16:44:37 -07:00
peter klausler 3bc2ae951a [flang] Add runtime I/O APIs for COMPLEX formatted input
It turns out that COMPLEX formatted input needs its own runtime APIs
so that null values in list-directed input skip the entire COMPLEX
datum rather than just a real or imaginary part thereof.

Reviewed By: sscalpone

Differential Revision: https://reviews.llvm.org/D84370
2020-07-22 17:52:19 -07:00
peter klausler 8f2c5c4314 [flang] Implement byte-swapped external unformatted I/O in runtime
Add SetConvert() to the OPEN statement's runtime API.
Add ByteswapOption() to the main program's runtime API.
Check a $FORT_CONVERT environment variable, too, for
a swapping specifier.

Reviewed By: sscalpone

Differential Revision: https://reviews.llvm.org/D84284
2020-07-21 18:14:46 -07:00
peter klausler ea4758a125 [flang] Rework read/write permission management for runtime file opening
Anonymous Fortran unit files (e.g., "./fort.7") need to be created
O_RDWR so that they can be written, rewound, and read.  Other
files opened with no ACTION= specifier need to set read/write
permissions based on the file, if it exists.

Reviewed By: sscalpone

Differential Revision: https://reviews.llvm.org/D84063
2020-07-17 14:44:58 -07:00
peter klausler b30fa1c3da [flang] Add entry points for internal scalar list-directed I/O
BeginInternalListInput and BeginInternalListOutput were missing
from the I/O API implementation; add them.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D84066
2020-07-17 12:49:06 -07:00
peter klausler bd43fa29e3 [flang] Implement anonymous units in the runtime
I/O from/to an unopened unit number needs to open &/or create
a "fort.$UNIT" file.

Fixes FCVS test fm401.f.

Reviewed By: tskeith

Differential Revision: https://reviews.llvm.org/D83809
2020-07-14 16:12:06 -07:00
Zachary Selk 4b9b64d561 [flang] Added missing runtime I/O definitions
Added runtime function definitions for 32-bit real I/O and 32-bit complex output

Differential Revision: https://reviews.llvm.org/D83112
2020-07-07 12:33:51 -07:00
peter klausler 5d5b968252 [flang] Add fixes and missing stmts to I/O runtime API handlers (ext. I/O part 8)
Complete the rework of the initial implementation of external I/O
to fix problems found in testing (tests to follow); add handlers
for hitherto unimplemented PAUSE, FLUSH, ENDFILE, BACKSPACE, and
REWIND statements.

Reviewed By: tskeith, sscalpone

Differential Revision: https://reviews.llvm.org/D83162
2020-07-04 12:53:31 -07:00
peter klausler 98d576c78f [flang] Improve API for runtime allocator (I/O runtime work part 3)
New<A> used to return an A&; now it returns an OwningPtr<A>
to force better ownership tracking of allocations.  Its API
has also been split into New<A> and SizedNew<A> to allow
allocations with a size override.

Reviewed By: tskeith

Differential Revision: https://reviews.llvm.org/D83108
2020-07-03 08:37:40 -07:00
Tim Keith 1f8790050b [flang] Reformat with latest clang-format and .clang-format
Original-commit: flang-compiler/f18@9fe84f45d7
Reviewed-on: https://github.com/flang-compiler/f18/pull/1094
2020-03-28 21:00:16 -07:00
peter klausler 3b63571425 [flang] Use hash table for UnitMap, avoid C++ STL binary dependence
Scan FORMAT strings locally to avoid C++ binary runtime dependence when computing deepest parenthesis nesting

Remove a dependency on ostream from runtime

Remove remaining direct external references from runtime to C++ library binaries

Remove runtime dependences on lib/common

SetPos() and SetRec()

Instantiate templates for input

Begin input; rearrange locking, deal with CLOSE races

View()

Update error message in test to agree with compiler change

First cut at real input

More robust I/O runtime error handling

Debugging of REAL input

Add iostat.{h,cpp}

Rename runtime/numeric-* to runtime/edit-*

Move templates around, templatize integer output editing

Move LOGICAL and CHARACTER output from io-api.cpp to edit-output.cpp

Change pointer argument to reference

More list-directed input

Complex list-directed input

Use enum class Direction rather than bool for templates

Catch up with changes to master

Undo reformatting of Lower code

Use record number instead of subscripts for internal unit

Unformatted sequential backspace

Testing and debugging

Dodge bogus GCC warning

Add <cstddef> for std::size_t to fix CI build

Address review comments

Original-commit: flang-compiler/f18@50406b3496
Reviewed-on: https://github.com/flang-compiler/f18/pull/1053
2020-03-11 13:23:39 -07:00
peter klausler 95696d563b [flang] Progress on Fortran I/O runtime
Use internal units for internal I/O state

Replace use of virtual functions

reference_wrapper

Internal formatted output to array descriptor

Delete dead code

Begin list-directed internal output

Refactorings and renamings for clarity

List-directed external I/O (character)

COMPLEX list-directed output

Control list items

First cut at unformatted I/O

More OPEN statement work; rename class to ExternalFileUnit

Complete OPEN (exc. for POSITION=), add CLOSE()

OPEN(POSITION=)

Flush buffers on crash and for terminal output; clean up

Documentation

Fix backquote in documentation

Fix typo in comment

Begin implementation of input

Refactor binary floating-point properties to a new header, simplify numeric output editing

Dodge spurious GCC 7.2 build warning

Address review comments

Original-commit: flang-compiler/f18@9c4bba11cf
Reviewed-on: https://github.com/flang-compiler/f18/pull/982
2020-02-13 10:31:26 -08:00
peter klausler f7be251804 [flang] Initial buffer framing code
Address review comments

Integer output data editing (I,B,O,Z)

Full integer output formatting

Stub out some work in progress

Progress on E output data editing

E, D, EN, and ES output editing done

Fw.d output editing

Real G output editing

G output editing for reals

Make environment a distinct module

CHARACTER and LOGICAL output editing

Minimal decimal representations for E0, F0, G0 editing

Move real output editing code into its own file

Fix/dodge some GCC build problems

Prep work for external I/O statement state

External HELLO, WORLD

Fix build problem with GCC

Add virtual destructors where needed

Add new test

Original-commit: flang-compiler/f18@c3f1774f8e
Reviewed-on: https://github.com/flang-compiler/f18/pull/950
2020-02-04 14:40:05 -08:00
Alexis Perry 352d347aa5 [flang] Changed *.cc file extension to *.cpp (updated scripts) (flang-compiler/f18#958)
Updated CMake files accordingly, using better regex
Updated license headers to match new extension and fit within 80 columns
Updated other comments within files that referred to the old extension

Original-commit: flang-compiler/f18@ae7721e611
Reviewed-on: https://github.com/flang-compiler/f18/pull/958
2020-01-27 18:18:45 -08:00