40 Commits

Author SHA1 Message Date
Sergio Afonso
edc2fb0733
[Flang][OpenMP][Sema] Support propagation of REQUIRES information across program units
Re-land commit 3787fd942f3927345320cc97a479f13e44355805

This patch adds support for storing OpenMP REQUIRES information in the
semantics symbols for programs/subprograms and modules/submodules, and
populates them during directive resolution. A pass is added to name resolution
that makes sure this information is also propagated across top-level programs,
functions and subprograms.

Storing REQUIRES information inside of semantics symbols will also allow
supporting the propagation of this information across Fortran modules. This
will come as a separate patch.

The `bool DirectiveAttributeVisitor::Pre(const parser::SpecificationPart &x)`
method is removed since it resulted in specification parts being visited twice.

This is patch 3/5 of a series splitting D149337 to simplify review.

Differential Revision: https://reviews.llvm.org/D157983
2023-09-11 15:01:57 +01:00
Sergio Afonso
4b9259b947
Revert "[Flang][OpenMP][Sema] Support propagation of REQUIRES information across program units"
Changes in this commit make some gfortran tests crash the compiler. It is
likely trying to dereference undefined symbol pointers.

This reverts commit 3787fd942f3927345320cc97a479f13e44355805.
2023-09-11 13:01:29 +01:00
Sergio Afonso
3787fd942f
[Flang][OpenMP][Sema] Support propagation of REQUIRES information across program units
This patch adds support for storing OpenMP REQUIRES information in the
semantics symbols for programs/subprograms and modules/submodules, and
populates them during directive resolution. A pass is added to name resolution
that makes sure this information is also propagated across top-level programs,
functions and subprograms.

Storing REQUIRES information inside of semantics symbols will also allow
supporting the propagation of this information across Fortran modules. This
will come as a separate patch.

The `bool DirectiveAttributeVisitor::Pre(const parser::SpecificationPart &x)`
method is removed since it resulted in specification parts being visited twice.

This is patch 3/5 of a series splitting D149337 to simplify review.

Differential Revision: https://reviews.llvm.org/D157983
2023-09-11 11:48:07 +01:00
Josh Mottley
165f7f06a1 [flang] Bump python dependencies in flang/examples/FlangOmpReport
ruamel.yaml had a potential security issues (may also be a false
positive in scanner).

Related to #64417 https://github.com/llvm/llvm-project/issues/64417

Reviewed By: avogelsgesang

Differential Revision: https://reviews.llvm.org/D157284
2023-08-07 18:00:07 +01:00
Peter Klausler
e12ffe6a93
[flang] Honor #line and related preprocessing directives
Extend the SourceFile class to take account of #line directives
when computing source file positions for error messages.
Adjust the output of #line directives to -E output so that they
reflect any #line directives that were in the input.

Differential Revision: https://reviews.llvm.org/D153910
2023-06-29 08:27:37 -07:00
Valentin Clement
5923e46fce
[flang][openacc] Add parsing support for dim in gang clause
Add parsing supprot for dim in gang clause

Depends on D151971

Reviewed By: razvanlupusoru, jeanPerier

Differential Revision: https://reviews.llvm.org/D151972
2023-06-13 20:33:36 -07:00
Tobias Hieta
f98ee40f4b
[NFC][Py Reformat] Reformat python files in the rest of the dirs
This is an ongoing series of commits that are reformatting our
Python code. This catches the last of the python files to
reformat. Since they where so few I bunched them together.

Reformatting is done with `black`.

If you end up having problems merging this commit because you
have made changes to a python file, the best way to handle that
is to run git checkout --ours <yourfile> and then reformat it
with black.

If you run into any problems, post to discourse about it and
we will try to help.

RFC Thread below:

https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style

Reviewed By: jhenderson, #libc, Mordante, sivachandra

Differential Revision: https://reviews.llvm.org/D150784
2023-05-25 11:17:05 +02:00
Ethan Luis McDonough
6311ab2147
[Flang] Syntax support for OMP Allocators Construct
OpenMP 5.2 introduces a Fortran specific construct that aims to replace the executable allocate directive.  This patch seeks to add parser support for the directive as well as the allocator clause with the [[ https://www.openmp.org/wp-content/uploads/OpenMP-API-Specification-5-2.pdf#section.6.6 | extended align/complex ]] modifier.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D149727
2023-05-10 14:57:20 -05:00
Ethan Luis McDonough
00d0749f92
[flang] Feature list plugin
Plugin that counts the number of times each tree node occurs in a given program.  Used for test coverage.

Updated to fix build issues.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D143704
2023-04-24 23:41:32 -05:00
Ethan Luis McDonough
22293a3d85
Revert "[flang] Feature list plugin" due to failing build
This reverts commit 823ddba1b325f30fc3fb2e9d695c211b856a4d5d.
2023-03-22 15:49:50 -05:00
Ethan Luis McDonough
823ddba1b3
[flang] Feature list plugin
Plugin that counts the number of times each tree node occurs in a given program.  Used for test coverage.

Updated to fix build issues.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D143704
2023-03-22 01:27:55 -05:00
Valentin Clement
9be446588e
Revert "[flang] Feature list plugin"
This reverts commit bde91fd03f72a25151caa9f8ee2d4572ff14619b.

Failing buildbot: https://lab.llvm.org/buildbot/#/builders/181/builds/15552
2023-03-17 17:59:22 +01:00
Ethan Luis McDonough
bde91fd03f
[flang] Feature list plugin
Plugin that counts the number of times each tree node occurs in a given program.  Used for test coverage.

> One thing we need...is a way to determine what features a code uses. Preferably we would also be able to determine if they are implemented or not. Just the former could be done with a visitor for the parse tree. For the latter we would continue compilation and somehow ignore todo errors but collect them - @jdoerfert

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D143704
2023-03-17 02:28:59 -05:00
Slava Zakharin
e63a600d14 [flang] Fixed linaro-flang-aarch64-sharedlibs after D145992. 2023-03-14 13:59:16 -07:00
Slava Zakharin
1c5d121440 [flang] Handle Flang examples consistently with LLVM.
Without this change the problem is that flangOmpReport and
flangPrintFunctionNames libraries are not built under 'all',
but they are imported targets via LLVMExports.cmake so that
any out-of-tree build that configures upon LLVM+Flang package
will get this CMake error:
```
  The imported target "flangPrintFunctionNames" references the file

     ".../lib/flangPrintFunctionNames.so"

  but this file does not exist.
```

flang-aarch64-out-of-tree buildbot (https://lab.llvm.org/buildbot/#/builders/175)
does not catch this issue, because it does not enable Flang on the first stage.

This change gets rid of FLANG_BUILD_EXAMPLES in favor of LLVM_BUILD_EXAMPLES
and uses available LLVM CMake macros to add example executables/libraries.

Differential Revision: https://reviews.llvm.org/D145992
2023-03-14 13:08:43 -07:00
Shao-Ce SUN
cbd86cf2e8 [flang][nfc] Avoid generating external-hello-world by default
The current setting is not working.
When compiling `flang`, the `external-hello-world` is still compiled by default.

Reviewed By: luporl

Differential Revision: https://reviews.llvm.org/D145877
2023-03-14 00:10:57 +08:00
Akash Banerjee
849c440226 [Flang][OpenMP] Added parser support for device_type clause
This patch adds parser suppert for the device_type clause used by the Declare Target directive.

Differential Revision: https://reviews.llvm.org/D143671
2023-02-16 14:03:34 +00:00
Slava Zakharin
7ea998e3be [flang] Fixed missing dependency.
It looks like a flaky issue that sometimes breaks the buildbot:
https://lab.llvm.org/buildbot/#/builders/181/builds/13475

Reviewed By: clementval

Differential Revision: https://reviews.llvm.org/D142081
2023-01-24 13:43:30 -08:00
Peter Klausler
629a29cacc [flang][examples] Fix build of flang/examples/FlangOmpReport/FlangOmpReportVisitor.cpp (take 2)
Need to add casts to std::string.
2022-12-02 16:15:20 -08:00
Peter Klausler
745f6fcd2b [flang][examples] Fix usage of EnumToString()
EnumToString() now returns a string_view; usage in
  examples/FlangOmpReport/FlangOmpReportVisitor.cpp
needs to be updated.  Pushing without review to get
flang build bots back up.
2022-12-02 13:16:40 -08:00
Jean Perier
fb8886d126 [flang] fix shared library builds after D136428
https://reviews.llvm.org/D136428 introduced the need for FIRBuilder
library to link against HLFIRDialect to satisfy shared builds.

The PrintFlangFunctionNames failure is unrelated, it is a build
race because many of the headers included in FrontendAction are
tablegen generated. So PrintFlangFunctionNames must wait until its
headers can be safely used. See
https://lab.llvm.org/buildbot/#/builders/191/builds/10340
2022-10-21 04:43:03 -07:00
Jonathon Penix
0ec3ac9b7f [Flang] Add -fconvert option to swap endianness for unformatted files.
To accomplish this, this patch creates an optional list of environment
variable default values to be set by the runtime to allow directly using
the existing runtime implementation of FORT_CONVERT for I/O conversions.
2022-10-12 16:57:37 -07:00
Gabriel Ravier
9e37b1e5a0
[flang] Fixed a number of typos
I went over the output of the following mess of a command:

`(ulimit -m 2000000; ulimit -v 2000000; git ls-files -z | parallel --xargs -0 cat | aspell list --mode=none --ignore-case | grep -E '^[A-Za-z][a-z]*$' | sort | uniq -c | sort -n | grep -vE '.{25}' | aspell pipe -W3 | grep : | cut -d' ' -f2 | less)`

and proceeded to spend a few days looking at it to find probable typos
and fixed a few hundred of them in all of the llvm project (note, the
ones I found are not anywhere near all of them, but it seems like a
good start).

Reviewed By: awarzynski, clementval

Differential Revision: https://reviews.llvm.org/D130844
2022-08-25 18:11:38 +02:00
Kazu Hirata
a8c294d6aa [flang] Remove redundant string initialization (NFC)
Identified with readability-redundant-string-init.
2022-08-14 12:52:01 -07:00
Andrzej Warzynski
ea18987094 [flang][nfc] Fix driver method names overridden by the plugins
After the recent re-factoring of the driver code
(https://reviews.llvm.org/D125007), `ExecuteAction` was renamed as
`executeAction`. This patch updates the examples in Flang accordingly.

If you set `FLANG_BUILD_EXAMPLES` to `On` when building Flang, then the
refactoring from D125007 would have caused build failures for you. This
patch fixes that.

This is fairly straightforward and fixes buildbot failures, so I'm
sending this without a review.
2022-05-15 17:58:04 +00:00
Andrzej Warzynski
2186a4aea0 [flang] Make the plugin API independent of the driver internals
This patch adds a few new member methods in the `PluginParseTreeAction`
frontend action base class. With these new methods, the plugin API
becomes independent of the driver internals. In particular, plugin
writers no longer require the `CompilerInstance.h` header file to access
various driver data structures (instead, they can use newly added
hooks).

This change is desirable as `CompilerInstance.h` includes various
headers from Clang (both explicitly and implicitly). Some of these
header files are generated at build time (through TableGen) and
including them creates a dependency on some of Clang's build targets.
However, plugins in Flang should not depend on Clang build targets.

Note that plugins might still work fine most of the time, even without
this change and without adding Clang build targets as dependency in
plugin's CMake definition. Indeed, these Clang build targets are often
generated early in the build process. However, that's not guaranteed and
we did notice that on occasions plugins would fail to build.

Differential Revision: https://reviews.llvm.org/D120999
2022-04-22 09:18:04 +00:00
Shraiysh Vaishay
ae1623b306 [flang][Parser] Add a node for individual sections in sections construct
This patch adds parser nodes for each indivudual section in sections
construct. This should help with the translation to FIR. `!$omp section`
was not recognized as a construct and hence needed special handling.

`OpenMPSectionsConstruct` contains a list of `OpenMPConstruct`. Each
such `OpenMPConstruct` wraps an `OpenMPSectionConstruct`
(section, not sections). An `OpenMPSectionConstruct` is a wrapper around
a `Block`.

Reviewed By: kiranchandramohan, peixin

Differential Revision: https://reviews.llvm.org/D121680
2022-03-18 21:55:35 +05:30
Andrzej Warzynski
7ccacaf442 [flang][examples] Add missing CMake dependencies
Currently, everything that includes "flang/Parser/parse-tree.h" in Flang
depends on the `gen_acc` and `gen_omp` CMake targets (these targets
generate include files that are used in "parse-tree.h"). The examples in
Flang do use this header file and hence also depend on
`gen_acc`/`gen_omp`. This patch updates relevant CMake scripts
accordingly.

I've also taken the liberty to rename some of the example files so that
their names follow LLVM's coding guidelines.

Differential Revision: https://reviews.llvm.org/D117016
2022-01-24 09:34:46 +00:00
Josh Mottley
a0f29fec65 [flang][flang-omp-report] Add flang-omp-report summarising script
The flang plugin ``flang-omp-report`` takes one fortran file in and returns a
YAML report file of the input file. This becomes an issue when you want to
analyse an entire project into one final report.
The purpose of this Python script is to generate a final YAML
report from all of the files generated by ``flang-omp-report``. The report can
have (currently) 2 formats; summary and log. Summary focuses on "summarizing"
all constructs and there clauses from all YAML files with a corresponding "count"
for each. Log instead combines the generated YAML files into one report in a
"cleaner" format. (Pseudo) Examples can be found for both formats at the top of
the script.

Differential Revision: https://reviews.llvm.org/D111042

Co-Authored by: Ivan Zhechev <ivan.zhechev@arm.com>
2021-11-04 17:43:17 +00:00
Josh Mottley
2aec2549e8 [flang][flang-omp-report] Remove the loop workarounds for nowait clause
In a "Worksharing-loop construct", one can add a nowait clause at the end
of the loop (i.e. at the loop tail). This clause wasn't associated with
the corresponding loop when originally worked on in flang-omp-report.
Note that this refers to parsing and parse-tree generation. To work
around it, it was needed to track such clauses and the loops.
This should no longer be required (and in fact no longer works) and so
was removed. This results in 'curLoopLogRecord' and 'loopLogRecordStack' and
all references to them being removed. This also allows for
'constructClauses' to be swapped from std::deque to llvm::SmallVector.
Lastly a new test has been added testing the "nowait" clauses in a
variety of ways.

Reviewed By: awarzynski, kiranchandramohan

Differential Revision: https://reviews.llvm.org/D112217
2021-11-04 14:23:50 +00:00
Josh Mottley
e9fe8ef4b0 [flang] flang-omp-report replace std::map with llvm::DenseMap
This patch replaces the uses of std::map with llvm::DenseMap in the
flang-omp-report plugin. It also removed the 'constructClauseCount' map
due to no longer being needed after the plugin was stripped down.
This is a one of several patches focusing on switching containers from STL to LLVM's ADT library.

Reviewed By: kiranchandramohan, clementval

Differential Revision: https://reviews.llvm.org/D111977
2021-10-20 07:57:04 +00:00
Josh Mottley
660c511e5b [Flang][flang-omp-report] Switch from std::string to StringRef (where possible)
This patch makes the following changes to flang-omp-report:
 - Update 'normalize_clause_name' parameter to use llvm::StringRef instead of
   std::sting.
 - Change usages of std::tolower to llvm::toLower from
   "ADT/StringExtras.h".
This is a one of several patches focusing on switching containers from STL to LLVM's ADT library.

Reviewed By: Leporacanthicus, clementval

Differential Revision: https://reviews.llvm.org/D111980
2021-10-20 07:55:44 +00:00
Josh Mottley
0b48b015b5 [Flang] flang-omp-report replace std::vector's with llvm::SmallVector
This patch replaces all uses of std::vector with llvm::SmallVector in the flang-omp-report plugin.
This is a one of several patches focusing on switching containers from STL to LLVM's ADT library.

Reviewed By: Leporacanthicus

Differential Revision: https://reviews.llvm.org/D111709
2021-10-14 11:05:24 +01:00
Stuart Ellis
38c42d42eb Flang OpenMP Report Plugin
This plugin parses Fortran files and creates a
YAML report with all the OpenMP constructs and
clauses seen in the file.

The following tests have been modified to be
compatible for testing the plugin, hence why
they are not reused from another directory:

- omp-atomic.f90
- omp-declarative-directive.f90
- omp-device-constructs.f90

The plugin outputs a single file in the same
directory as the source file in the following format:
`<source-file-name>.yaml`

Building the plugin:
`ninja flangOmpReport`

Running the plugin:
`./bin/flang-new -fc1 -load lib/flangOmpReport.so -plugin flang-omp-report -fopenmp <source_file.f90>`

Co-authored-by: Kiran Chandramohan <kiran.chandramohan@arm.com>
Co-authored-by: Stuart Ellis <stuart.ellis@arm.com>

Reviewed By: awarzynski, kiranchandramohan

Differential Revision: https://reviews.llvm.org/D109890
2021-09-28 22:57:17 +01:00
Peter Klausler
830c0b9023 [flang] Move runtime API headers to flang/include/flang/Runtime
Move the closure of the subset of flang/runtime/*.h header files that
are referenced by source files outside flang/runtime (apart from unit tests)
into a new directory (flang/include/flang/Runtime) so that relative
include paths into ../runtime need not be used.

flang/runtime/pgmath.h.inc is moved to flang/include/flang/Evaluate;
it's not used by the runtime.

Differential Revision: https://reviews.llvm.org/D109107
2021-09-03 11:08:34 -07:00
Stuart Ellis
520e5db26a [flang][driver] Add print function name Plugin example
Replacing Hello World example Plugin with one that counts and prints the names of
functions and subroutines.
This involves changing the `PluginParseTreeAction` Plugin base class to
inherit from `PrescanAndSemaAction` class to get access to the Parse Tree
so that the Plugin can walk it.
Additionally, there are tests of this new Plugin to check it prints the correct
things in different circumstances.

Depends on: D106137

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D107089
2021-08-19 08:25:34 +00:00
Stuart Ellis
f52fc591fa [flang][driver] Add support for Frontend Plugins
Introducing a plugin API and a simple HelloWorld Plugin example.
This patch adds the `-load` and `-plugin` flags to frontend driver and
the code around using custom frontend actions from within a plugin
shared library object.

It also adds to the Driver-help test to check the help option with the
updated driver flags.

Additionally, the patch creates a plugin-example test to check the
HelloWorld plugin example runs correctly. As part of this, a new CMake
flag (`FLANG_BUILD_EXAMPLES`) is added to allow the example to be built
and for the test to run.

This Plugin API has only been tested on Linux.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D106137
2021-08-12 11:42:16 +01:00
Andrzej Warzynski
c1f068b8f1 [flang] Revert "PoC for Flang Driver Plugins"
This patch has not been reviewed and was commited by accident.

This reverts commit 788a5d4afe6407e647454a9832a7b4a27fba06bf.
2021-07-01 08:27:31 +00:00
Stuart Ellis
788a5d4afe PoC for Flang Driver Plugins 2021-07-01 08:10:40 +00:00
Andrzej Warzynski
062644bb39 [flang][nfc] Move external-hello-world to flang/examples
As `external-hello-world` is not really a test, I am moving it from
`flang/unittest/Runtime` to `flang/examples` (it makes a lot of sense as
an example). I've not modified the source code (apart from adjusting the
include paths).

Differential Revision: https://reviews.llvm.org/D104320
2021-06-16 08:00:50 +00:00