Commit Graph

101 Commits

Author SHA1 Message Date
peter klausler c1db35f0c2 [flang] Implement more transformational intrinsic functions in runtime
Define APIs, naively implement, and add basic sanity unit tests for
the transformational intrinsic functions CSHIFT, EOSHIFT, PACK,
SPREAD, TRANSPOSE, and UNPACK.  These are the remaining transformational
intrinsic functions that rearrange data without regard to type
(except for default boundary values in EOSHIFT); RESHAPE was already
in place as a stress test for the runtime's descriptor handling
facilities.

Code is in place to create copies of allocatable/automatic
components when transforming arrays of derived type, but it won't
do anything until we have derived type information being passed to the
runtime from the frontend.

Differential Revision: https://reviews.llvm.org/D102857
2021-05-20 13:22:01 -07:00
peter klausler 5e1421b22f [flang] Implement MATMUL in the runtime
Define an API for the transformational intrinsic function MATMUL,
implement it, and add some basic unit tests.  The large number of
possible argument type combinations are covered by a set of
generalized templates that are instantiated for each valid
pair of possible argument types.

Places where BLAS-2/3 routines could be called for acceleration
are marked with TODOs.  Handling for other special cases (e.g.,
known-shape 3x3 matrices and vectors) are deferred.

Some minor tweaks were made to the recent related implementation
of DOT_PRODUCT to reflect lessons learned.

Differential Revision: https://reviews.llvm.org/D102652
2021-05-18 10:59:52 -07:00
Benjamin Kramer 05de4b4139 Put back the trailing commas on TYPED_TEST_SUITE
This avoids a -pedantic warning:
warning: ISO C++11 requires at least one argument for the "..." in a variadic macro

See also https://github.com/google/googletest/issues/2271
2021-05-17 14:14:13 +02:00
Benjamin Kramer 17ef1017f0 [flang] s/TYPED_TEST_CASE/TYPED_TEST_SUITE/ as the former is deprecated 2021-05-14 20:39:48 +02:00
Benjamin Kramer d4d80a2903 Bump googletest to 1.10.0 2021-05-14 19:16:31 +02:00
peter klausler 50e0b2985e [flang] Implement DOT_PRODUCT in the runtime
API, implementation, and basic tests for the transformational
reduction intrinsic function DOT_PRODUCT in the runtime support
library.

Differential Revision: https://reviews.llvm.org/D102351
2021-05-13 10:40:07 -07:00
peter klausler 01c78a0b07 [flang] Implement NORM2 in the runtime
Implement the reduction transformational intrinsic function NORM2 in
the runtime, using infrastructure already in place for MAXVAL & al.

Differential Revision: https://reviews.llvm.org/D102024
2021-05-07 13:23:21 -07:00
Diana Picus 2ea36e9492 [flang] Remove redundant reallocation
The MaxMinHelper used to implement MIN and MAX for character types would
reallocate the accumulator whenever the number of characters in it was
different from that in the other input. This is unnecessary if the
accumulator is already larger than the other input. This patch fixes the
issue and adds a unit test to make sure we don't reallocate if we don't
need to.

Differential Revision: https://reviews.llvm.org/D101984
2021-05-07 08:54:09 +00:00
Diana Picus 778487a221 [flang] Add tests for MIN for character arrays. NFC
We used to test only scalar character types. This commit adds tests for
arrays with a few simple shapes.

Differential Revision: https://reviews.llvm.org/D101983
2021-05-07 08:54:09 +00:00
peter klausler 6a1c3efa05 [flang] Implement NAMELIST I/O in the runtime
Add InputNamelist and OutputNamelist as I/O data transfer APIs
to be used with internal & external list-directed I/O; delete the
needless original namelist-specific Begin... calls.
Implement NAMELIST output and input; add basic tests.

Differential Revision: https://reviews.llvm.org/D101931
2021-05-06 11:18:36 -07:00
Diana Picus 5112bd6b6e [flang] Fix a bug in the character runtime
The number of bytes copied in CopyAndPad should depend on the size of
the type being copied, not on its shift value (which in the case of char
is 0, leading to no bytes at all being copied).

Add unit tests for CharacterMin and CharacterMax, which exercise this
code path.

Differential Revision: https://reviews.llvm.org/D101355
2021-05-03 08:08:08 +00:00
Diana Picus aaab70407b [flang] Fix handling of elem_len in CFI_establish
The current code computes the minimum element length based on the `type`
used to create the descriptor and uses that as the element length
whenever it is greater than 0. This means that the `elem_len` parameter
is essentially ignored for any type where we can compute a minimum
element length (which includes `CFI_type_char[16|32]_t`), and we may
therefore end up with descriptors with a lower element length than
expected.

This patch fixes the issue by explicitly doing what the standard says,
i.e. it uses the given `elem_len` for character types, `CFI_type_struct`
and `CFI_type_other`, and ignores it (falls back to the minimum element
length) for everything else.

Differential Revision: https://reviews.llvm.org/D101659
2021-05-03 08:08:07 +00:00
Diana Picus 32f901bdf9 [flang] Use CFI_TYPE_LAST instead of CFI_type_struct
It looks like CFI_type_struct was once used as the last valid CFI_type
value, but in the meantime CFI_type_char16_t and CFI_type_char32_t were
added, making that assumption no longer true. Luckily, in the meantime
we also got a define for CFI_TYPE_LAST, which we can now use to allow
CFI_establish and CFI_allocate to work with descriptors of
CFI_type_char16_t, CFI_type_char32_t and any other future types.

Differential Revision: https://reviews.llvm.org/D101658
2021-05-03 08:08:07 +00:00
Asher Mancinelli 4abba775a3 [flang] Add format test to GTest suite
Reviewed by: awarzynski
Differential Revision: https://reviews.llvm.org/D100765
2021-04-27 07:45:18 -07:00
Mehdi Chinoune 0a7d2b5f50 [flang][msvc] Fix compilation of external-hello-world test with MSVC.
MSVC doesn't accept division by zero.

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D96069
2021-04-21 15:18:24 -05:00
Mehdi Chinoune 080d48f279 [flang][msvc] Fix compilation of RuntimeGtest
Removes alternate spelling 'not' with '!'.

Reviewed by: ashermancinelli, awarzynski, Meinersbur

Differential revision: https://reviews.llvm.org/D100442
2021-04-20 15:36:38 -06:00
peter klausler 8d672c0b3e [flang] Implement IPARITY, PARITY, and FINDLOC reductions
Define APIs for, and implement, these three more recently-introduced
standard reduction transformational intrinsic functions to the runtime.

Differential Revision: https://reviews.llvm.org/D100863
2021-04-20 12:25:42 -07:00
peter klausler 71d868cf90 [flang] Define missing & needed IEEE_ARITHMETIC symbols
Define IEEE_IS_NAN, IEEE_IS_FINITE, & IEEE_REM.

Differential Revision: https://reviews.llvm.org/D100599
2021-04-19 11:44:43 -07:00
Asher Mancinelli ccef0adc59 [flang] Add list input test to GTest suite 2021-04-15 09:27:43 -07:00
peter klausler e11140451b [flang] RANDOM_NUMBER, RANDOM_SEED, RANDOM_INIT in runtime
Add APIs, initial non-coarray implementations, and unit
tests for the intrinsic subroutines for pseudo-random
number generation.

Differential Revision: https://reviews.llvm.org/D100064
2021-04-09 17:03:11 -07:00
peter klausler 78a39d2a41 [flang] TRANSFER() intrinsic function
API, implementation, and unit tests for the intrinsic
function TRANSFER.

Differential Revision: https://reviews.llvm.org/D99799
2021-04-02 10:41:37 -07:00
peter klausler 273416231b [flang] Disable some new unit tests (non-portable results)
Due to architectural variation on the C++ functions std::ceil, std::floor,
and std::trunc, diable some new Fortran unit tests for now that depending
on specifical results for IEEE floating-point edge cases of infinities
and NaNs.
2021-04-01 17:03:54 -07:00
peter klausler 287c93c132 [flang] Fix unit test failure on POWER
A new unit test for the Fortran runtime needs to allow for some
architectural variation on Infinity and NaN edge cases of NINT().
2021-04-01 16:20:07 -07:00
peter klausler 5f6c5c63c7 [flang] Implement numeric intrinsic functions in runtime
Adds APIs, implementations, and unit tests for AINT, ANINT,
CEILING, EXPONENT, FLOOR, FRACTION, MOD, MODULO, NEAREST, NINT,
RRSPACING, SCALE, SET_EXPONENT, & SPACING.

Differential Revision: https://reviews.llvm.org/D99764
2021-04-01 15:39:32 -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
Asher Mancinelli e8515ca847 [flang] Update output format test to use GTest
Better document each test in output formatting tests. Use GTest primitives and infrastructure in same
spirit as [[ https://reviews.llvm.org/D97403 | D97403 ]]. [[ https://github.com/flang-compiler/f18/issues/995#issuecomment-790737912 | See legacy github issue linked here ]] for additional context. Reorganize long test cases to be more readable.

Reviewed By: awarzynski, klausler

Differential Revision: https://reviews.llvm.org/D98303
2021-03-29 17:18:45 +01:00
Tim Keith 61a55c8812 [flang] Fix error compiling std::min on macos
On macos, `size_t` is `unsigned long` while `size_t - int64_t` is
`unsigned long long` so std::min requires an explicit type to compile.

Differential Revision: https://reviews.llvm.org/D99340
2021-03-25 11:18:40 -07:00
peter klausler 5da55bfc18 [flang] Fix output buffering bug (positionability assumption)
The I/O runtime library code was failing to retain data in a buffer
from the current output record when flushing the buffer; this is
fatally wrong when the corresponding file cannot be repositioned,
as in the case of standard output to the console. So refine the
Flush() member function to retain a specified number of bytes,
rearrange the data as necessary (using existing code for read frame
management after moving it into a new member function), and add
a big comment to the head of the file to clarify the roles of the
various data members in the management of contiguous frames in
circular buffers.

Update: added a unit test.

Differential Revision: https://reviews.llvm.org/D99198
2021-03-24 11:39:18 -07:00
Asher Mancinelli 168b206cd8 [flang] Unittests for runtime terminator
Create test fixture for runtime tests which enables verification
of failure cases. Test some runtime IO APIs for failure cases.
Support testing efforts in D98303. Expand on effort discussed
in D98601.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D98652
2021-03-18 15:54:48 +00:00
peter klausler 46ade6d0ef [flang] Order Symbols by source provenance
In parser::AllCookedSources, implement a map from CharBlocks to
the CookedSource instances that they cover.  This permits a fast
Find() operation based on std::map::equal_range to map a CharBlock
to its enclosing CookedSource instance.

Add a creation order number to each CookedSource.  This allows
AllCookedSources to provide a Precedes(x,y) predicate that is a
true source stream ordering between two CharBlocks -- x is less
than y if it is in an earlier CookedSource, or in the same
CookedSource at an earlier position.

Add a reference to the singleton SemanticsContext to each Scope.

All of this allows operator< to be implemented on Symbols by
means of a true source ordering.  From a Symbol, we get to
its Scope, then to the SemanticsContext, and then use its
AllCookedSources reference to call Precedes().

Differential Revision: https://reviews.llvm.org/D98743
2021-03-16 15:25:15 -07:00
peter klausler 6811b96100 [flang] Runtime: implement INDEX intrinsic function
Implement INDEX in the runtime, reusing some infrastructure
(with generalization and renaming as needed) put into place
for its cousins SCAN and VERIFY.

I did not implement full Boyer-Moore substring searching
for the forward case, but did accelerate some advancement on
mismatches.

I (re)implemented unit testing for INDEX in the new gtest
framework, combining it with the tests that have recently
been ported to gtest for SCAN and VERIFY.

Differential Revision: https://reviews.llvm.org/D98553
2021-03-15 14:19:13 -07:00
Asher Mancinelli 95193ac5ba [flang] update character tests to use gtest
Move character tests to gtest, according to reviews from revision
D97349. Create a new temporary directory parallel to old runtime
unittests directory to facilitate the transition. Once patches for all
tests have been accepted using GTest, the old directory may be removed.
The new directory is required because LLVM's CMake unit test
infrastructure requires that the test depends on all source files in
the `CMAKE_CURRENT_SOURCE_DIR` directory.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D97403
2021-03-09 08:31:20 +00:00
Arnamoy Bhattacharyya ab971c29a5 [flang][driver] Add options for -fdefault* and -flarge-sizes
Add support for the following Fortran dialect options:
  - -default*
  - -flarge-sizes

It also adds two test cases:
  # For checking whether `flang-new` is passing options correctly to `flang-new -fc1`.
  # For checking if `fdefault-` arguments are processed properly.

Also moves the Dialect related option parsing to a dedicated function
and adds a member `defaultKinds()` to `CompilerInvocation`

Depends on: D96032

Differential Revision: https://reviews.llvm.org/D96344
2021-03-04 13:29:07 +00:00
peter klausler 5a451a4289 [flang] Runtime: SCAN and VERIFY
Implement the related character intrinsic functions
SCAN and VERIFY.

Differential Revision: https://reviews.llvm.org/D97580
2021-03-01 12:15:29 -08:00
Eric Schweitz c68d2895a1 [flang][fir] Update flang test tool support classes.
This updates the various classes that support the compliation of
Fortran. These classes are shared by the test tools.

Authors: Eric Schweitz, Sameeran Joshi, et.al.

Differential Revision: https://reviews.llvm.org/D97073
2021-02-19 16:02:39 -08:00
Eric Schweitz 4dc87d1010 [flang][fir] Update the kind mapping class.
The kind mapper provides a portable mechanism to map Fortran type KIND values
independent of the front-end to their corresponding MLIR and LLVM types.

Differential Revision: https://reviews.llvm.org/D96362
2021-02-11 11:11:52 -08:00
Andrzej Warzynski cf471632b1 [flang][driver] Add missing dependency in unit tests (nfc)
The following patch revealed a missing dependency in the CMake script
for Flang driver unit tests:
  * https://reviews.llvm.org/D96032
The following buildbots are failing ("BUILD_SHARED_LIBS" is set to ON):
  * http://lab.llvm.org:8011/#/builders/134/builds/1840
  * http://lab.llvm.org:8011/#/builders/66/builds/1785
  * http://lab.llvm.org:8011/#/builders/33/builds/2436

This patch adds the missing dependency.

From what I can see, FortranSemantics and FortranParser are only
indirect dependencies of FlangFrontendTests and IIUC shouldn't be
required here. This is something that we should revisit at some point.
In this patch I focus on fixing the build.
2021-02-10 13:31:49 +00:00
Eric Schweitz e090182fe1 [flang][fir] Updates to internal name uniquer.
https://github.com/flang-compiler/f18-llvm-project/pull/474

Differential Revision: https://reviews.llvm.org/D96361
2021-02-09 14:43:33 -08:00
peter klausler 6110e7716c [flang] Search for #include "file" in right directory (take 2)
Make the #include "file" preprocessing directive begin its
search in the same directory as the file containing the directive,
as other preprocessors and our Fortran INCLUDE statement do.

Avoid current working directory for all source files except the original.

Resolve tests.

Differential Revision: https://reviews.llvm.org/D95481
2021-01-27 15:41:29 -08:00
Andrzej Warzynski b564b12bc6 [flang][driver] Refactor one unit-test case to use fixtures (nfc)
Move the unit test from InputOutputTest.cpp to FrontendActionTest.cpp
and re-implement it in terms of the FrontendActionTest fixture. This is
just a small code clean-up and a continuation of:
  * https://reviews.llvm.org/D93544

Moving forward, we should try be implementing all unit-test cases for
Flang's frontend actions in terms of FrontendActionTest.

Reviewed By: sameeranjoshi

Differential Revision: https://reviews.llvm.org/D94922
2021-01-20 19:36:38 +00:00
Faris Rehman 443d6957ca [flang][driver] Add support for fixed form detection
Currently the new flang driver always runs in free form mode. This patch
adds support for fixed form mode detection based on the file extensions.

Like `f18`, `flang-new` will treat files ending with ".f", ".F" and
".ff" as fixed form. Additionally, ".for", ".FOR", ".fpp" and ".FPP"
file extensions are recognised as fixed form files. This is consistent
with gfortran [1]. In summary, files with the following extensions are
treated as fixed-form:
  * ".f", ".F", ".ff", ".for", ".FOR", ".fpp", ".FPP"

For consistency with flang/test/lit.cfg.py and f18, this patch also adds
support for the following file extensions:
  * ".ff", ".FOR", ".for", ".ff90", ".fpp", ".FPP"
This is added in flang/lib/Frontend/FrontendOptions.cpp. Additionally,
the following extensions are included:
  * ".f03", ".F03", ".f08", ".F08"
This is for compatibility with gfortran [1] and other popular Fortran
compilers [2].

NOTE: internally Flang will only differentiate between fixed and free
form files. Currently Flang does not support switching between language
standards, so in this regard file extensions are irrelevant. More
specifically, both `file.f03` and `file.f18` are represented with
`Language::Fortran` (as opposed to e.g. `Language::Fortran03`).

Summary of changes:
- Set Fortran::parser::Options::sFixedForm according to the file type
- Add isFixedFormSuffix and isFreeFormSuffix helper functions to
  FrontendTool/Utils.h
- Change FrontendOptions::GetInputKindForExtension to support the missing
  file extensions that f18 supports and some additional ones
- FrontendActionTest.cpp is updated to make sure that the test input is
  treated as free-form

[1] https://gcc.gnu.org/onlinedocs/gfortran/GNU-Fortran-and-GCC.html
[2] https://github.com/llvm/llvm-project/blob/master/flang/docs/OptionComparison.md#notes

Differential Revision: https://reviews.llvm.org/D94228
2021-01-19 12:58:01 +00:00
Andrzej Warzynski 44e74c75e6 [flang][driver] Refactor unit tests for frontend actions (nfc)
These patch implements a few non-functional-changes:
  * switch to using test fixtures for better code sharing
  * rename some variables (e.g. to communicate their purpose a bit better)
This patch doesn't change _what_ is being tested.

Differential Revision: https://reviews.llvm.org/D93544
2020-12-22 13:06:56 +00:00
Andrzej Warzynski d6abd7317a [flang][driver] Make the names of files created in unit tests unique (nfc)
Using files with identical names leads to unexpected failures when tests
are run in parallel. This is tricky to reproduce, but has been happening
on some buildbots since merging https://reviews.llvm.org/D92854. In that
patch I added a unit test with a non-unique test file. This patch fixes
that.
2020-12-21 11:20:06 +00:00
Andrzej Warzynski db2195bc5b [flang][driver] Rename unittest file (nfc)
This patch renames PrintPreprocessedTest.cpp as FrontendActionTest.cpp.
The latter reflects the contents of the file more accurately.
2020-12-18 15:35:45 +00:00
Andrzej Warzynski 7d246cb19d [flang][driver] Add support for `-fsyntax-only`
The behaviour triggered with this flag is consistent with `-fparse-only`
in `flang` (i.e. the throwaway driver). This new spelling is consistent
with Clang and gfortran, and was proposed and agreed on for the new
driver in [1].

This patch also adds some minimal logic to communicate whether the
semantic checks have failed or not. When semantic checks fail, a
frontend driver error is generated. The return code from the frontend
driver is then determined by checking the driver diagnostics - the
presence of driver errors means that the compilation has failed. This
logic is consistent with `clang -cc1`.

[1] http://lists.llvm.org/pipermail/flang-dev/2020-November/000588.html

Differential Revision: https://reviews.llvm.org/D92854
2020-12-18 09:35:02 +00:00
Andrzej Warzynski 1b749c0cb5 [flang][driver] Remove unnecessary CMake dependencies (nfc)
Remove clangFrontend from the list of dependencies. These should have
been removed in: 8d51d37e06. See also
https://reviews.llvm.org/D87774.
2020-11-20 16:44:11 +00:00
Caroline Concatto d28de0d7f2 [Flang][Driver] Add PrintPreprocessedInput FrontendAction (`flang-new -E`)
This patch implements the first frontend action for the Flang parser (i.e.
Fortran::parser). This action runs the preprocessor and is invoked with the
`-E` flag. (i.e. `flang-new -E <input-file>). The generated output is printed
to either stdout or the output file (specified with `-` or `-o <output-file>`).

Note that currently there is no mechanism to map options for the
frontend driver (i.e. Fortran::frontend::FrontendOptions) to options for
the parser (i.e. Fortran::parser::Options). Instead,
Frotran::parser::options are hard-coded to:

```
std::vector<std::string> searchDirectories{"."s};
searchDirectories = searchDirectories;
isFixedForm = false;
_encoding(Fortran::parser::Encoding::UTF_8);
```

These default settings are compatible with the current Flang driver. Further
work is required in order for CompilerInvocation to read and map
clang::driver::options to Fortran::parser::options.

Co-authored-by: Andrzej Warzynski <andrzej.warzynski@arm.com>

Differential Revision: https://reviews.llvm.org/D88381
2020-11-02 14:03:35 +00:00
Andrzej Warzynski 9ffb5b0469 [flang][driver] Rename the accessors/mutators (NFC)
As per point 3 in [1]:

```
Accessor member functions are named with the non-public data member's
name, less the trailing underscore.  Mutator member functions are named
set_...
```

Originally we just followed the LLVM's style, which is incompatible with
Flang. This patch renames the accessors and mutators accordingly.

`getDiagnostics` and `GetDiagnostics` are replaced with one accessor:
`diagnostics`. `SetDiagnostics` was neither implemented nor used, so
it's deleted.

[1] https://github.com/llvm/llvm-project/blob/master/flang/docs/C++style.md#naming

Differential Revision: https://reviews.llvm.org/D90300
2020-11-02 10:55:13 +00:00
Caroline Concatto 4c5906cffd [Flang][Driver] Add infrastructure for basic frontend actions and file I/O
This patch introduces the dependencies required to read and manage input files
provided by the command line option. It also adds the infrastructure to create
and write to output files. The output is sent to either stdout or a file
(specified with the `-o` flag).

Separately, in order to be able to test the code for file I/O, it adds
infrastructure to create frontend actions. As a basic testable example, it adds
the `InputOutputTest` FrontendAction. The sole purpose of this action is to
read a file from the command line and print it either to stdout or the output
file.  This action is run by using the `-test-io` flag also introduced in this
patch (available for `flang-new` and `flang-new -fc1`). With this patch:
```
flang-new -test-io input-file.f90
```
will read input-file.f90 and print it in the output file.

The `InputOutputTest` frontend action has been introduced primarily to
facilitate testing. It is hidden from users (i.e. it's only displayed with
`--help-hidden`). Currently Clang doesn’t have an equivalent action.

`-test-io` is used to trigger the InputOutputTest action in the Flang frontend
driver. This patch makes sure that “flang-new” forwards it to “flang-new -fc1"
by creating a preprocessor job. However, in Flang.cpp, `-test-io` is passed to
“flang-new -fc1” without `-E`. This way we make sure that the preprocessor is
_not_ run in the frontend driver. This is the desired behaviour: `-test-io`
should only read the input file and print it to the output stream.

co-authored-by: Andrzej Warzynski <andrzej.warzynski@arm.com>

Differential Revision: https://reviews.llvm.org/D87989
2020-10-24 14:58:32 +01:00
Serge Guelton 50df5f24dc [flang] Fix build with BUILD_SHARED_LIBS=ON and FLANG_BUILD_NEW_DRIVER=ON
As usual, it's difficult to handle all different configuration in the first row,
but this one has been extensively tested

Differential Revision: https://reviews.llvm.org/D89452
2020-10-15 13:03:55 +02:00