- Add a fatal error handler that can print a message with source location
before aborting.
- Update TODO macro to take an mlir location argument and to use the
newly introduced fatal error handler.
- Introduce TODO_NOLOC for the few places where no source location is
easily accessible.
Reviewed By: schweitz
Differential Revision: https://reviews.llvm.org/D97190
`verifyConstructionInvariants` is intended to allow for verifying the invariants of an attribute/type on construction, and `getChecked` is intended to enable more graceful error handling aside from an assert. There are a few problems with the current implementation of these methods:
* `verifyConstructionInvariants` requires an mlir::Location for emitting errors, which is prohibitively costly in the situations that would most likely use them, e.g. the parser.
This creates an unfortunate code duplication between the verifier code and the parser code, given that the parser operates on llvm::SMLoc and it is an undesirable overhead to pre-emptively convert from that to an mlir::Location.
* `getChecked` effectively requires duplicating the definition of the `get` method, creating a quite clunky workflow due to the subtle different in its signature.
This revision aims to talk the above problems by refactoring the implementation to use a callback for error emission. Using a callback allows for deferring the costly part of error emission until it is actually necessary.
Due to the necessary signature change in each instance of these methods, this revision also takes this opportunity to cleanup the definition of these methods by:
* restructuring the signature of `getChecked` such that it can be generated from the same code block as the `get` method.
* renaming `verifyConstructionInvariants` to `verify` to match the naming scheme of the rest of the compiler.
Differential Revision: https://reviews.llvm.org/D97100
Add -J to the f18 driver for compatibility with gfortran.
Add -module-dir for compatibility with the new flang driver.
They both set the output directory for .mod files and add the
directory to the search list. -module still only does the former.
Clean up the new driver test to match.
Differential Revision: https://reviews.llvm.org/D97164
This patch adds support for `-Xflang` in `flang-new`. The semantics are
identical to `-Xclang`.
With the addition of `-Xflang`, we can modify `-test-io` to be a
compiler-frontend only flag. This makes more sense, this flag is:
* very frontend specific
* to be used for development and testing only
* not to be exposed to the end user
Originally we added it to the compiler driver, `flang-new`, in order to
facilitate testing. With `-Xflang` this is no longer needed. Tests are
updated accordingly.
Differential Revision: https://reviews.llvm.org/D96864
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
Add the following options:
* -fdebug-measure-parse-tree
* -fdebug-pre-fir-tree
Summary of changes:
- Add 2 new frontend actions: DebugMeasureParseTreeAction and DebugPreFIRTreeAction
- Add MeasurementVisitor to FrontendActions.h
- Make reportFatalSemanticErrors return true if there are any fatal errors
- Port most of the `-fdebug-pre-fir-tree` tests to use the new driver if built, otherwise use f18.
Differential Revision: https://reviews.llvm.org/D96884
Most Fortran compilers accept the following benign extension,
and it appears in some applications:
SUBROUTINE FOO(A,N)
IMPLICIT NONE
REAL A(N) ! N is used before being typed
INTEGER N
END
Allow it in f18 only for default integer scalar dummy arguments.
Differential Revesion: https://reviews.llvm.org/D96982
These dependencies were introduced via the `ParseTreeDumper` API in:
* https://reviews.llvm.org/D96716
They manifested themselves in buildbot builders that set
`BUILD_SHARED_LIBS` to `On`.
Add the following options:
* -fdebug-dump-symbols
* -fdebug-dump-parse-tree
* -fdebug-dump-provenance
Summary of changes:
- Add 3 new frontend actions: DebugDumpSymbolsAction, DebugDumpParseTreeAction and DebugDumpProvenanceAction
- Add a unique pointer to the Semantics instance created in PrescanAndSemaAction
- Move fatal semantic error reporting to its own method, FrontendActions#reportFatalSemanticErrors
- Port most tests using `-fdebug-dump-symbols` and `-fdebug-dump-parse-tree` to the new driver if built, otherwise default to f18
Differential Revision: https://reviews.llvm.org/D96716
Fortran 2018 explicitly permits an ignored type declaration
for the result of a generic intrinsic function. See the comment
added to Semantics/expression.cpp for an explanation of why this
is somewhat dangerous and worthy of a warning.
Differential Revision: https://reviews.llvm.org/D96879
The intrinsic procedure table properly classify the various
intrinsics, but the PURE and ELEMENTAL attributes that these
classifications imply don't always make it to the utility
predicates that test symbols for them, leading to spurious
error messages in some contexts. So set those attribute flags
as appropriate in name resolution, using a new function to
isolate the tests.
An alternate solution, in which the predicates would query
the intrinsic procedure table for these attributes on demand,
was something I also tried, so that this information could
come directly from an authoritative source; but it would have
required references to the intrinsic table to be passed along
on too many seemingly unrelated APIs and ended up looking messy.
Several symbol table tests needed to have their expected outputs
augmented with the PURE and ELEMENTAL flags. Some bogus messages
that were flagged as such in test/Semantics/doconcurrent01.f90 were
removed, since they are now correctly not emitted.
Differential Revision: https://reviews.llvm.org/D96878
This patch is a follow up of D96422 and move BoxProcType to TableGen.
Reviewed By: schweitz, mehdi_amini
Differential Revision: https://reviews.llvm.org/D96514
This patch is a follow up of D96422 and move CharacterType and BoxCharType to
TableGen.
Reviewed By: schweitz
Differential Revision: https://reviews.llvm.org/D96446
It's possible to define a procedure that has a procedure dummy argument which
names the procedure that contains it. This was causing the compiler to fall
into an infinite loop when characterizing a call to the procedure.
Following a suggestion from Peter, I fixed this be maintaining a set of
procedure symbols that had already been seen while characterizing a procedure.
This required passing a new parameter to the functions that characterized a
Procedure, a DummyArgument, and a DummyProcedure.
I also added several tests that will crash the compiler without this change.
Differential Revision: https://reviews.llvm.org/D96631
Fix Flang build after addition of a new OpenMP clauses for a clang patch (D76342).
Flang is using TableGen to generation the declaration of clause checks and the new clause
was missing a definiton.
Reviewed By: klausler
Differential Revision: https://reviews.llvm.org/D96808
This patch introduce the fir-opt tool. Similar to mlir-opt for FIR.
It will be used in following patches to test fir opt and round-trip.
Reviewed By: schweitz, mehdi_amini
Differential Revision: https://reviews.llvm.org/D96535
Add the following options:
* -fimplicit-none and -fno-implicit-none
* -fbackslash and -fno-backslash
* -flogical-abbreviations and -fno-logical-abbreviations
* -fxor-operator and -fno-xor-operator
* -falternative-parameter-statement
* -finput-charset=<value>
Summary of changes:
- Enable extensions in CompilerInvocation#ParseFrontendArgs
- Add encoding_ to Fortran::frontend::FrontendOptions
- Add encoding to Fortran::parser::Options
Differential Revision: https://reviews.llvm.org/D96407
This patch adds the following compiler frontend driver options:
* -fdebug-unparse (f18 spelling: -funparse)
* -fdebug-unparse-with-symbols (f18 spelling: -funparse-with-symbols)
The new driver will only accept the new spelling. `f18` will accept both
the original and the new spelling.
A new base class for frontend actions is added: `PrescanAndSemaAction`.
This is added to reduce code duplication that otherwise these new
options would lead to. Implementation from
* `ParseSyntaxOnlyAction::ExecutionAction`
is moved to:
* `PrescanAndSemaAction::BeginSourceFileAction`
This implementation is now shared between:
* PrescanAndSemaAction
* ParseSyntaxOnlyAction
* DebugUnparseAction
* DebugUnparseWithSymbolsAction
All tests that don't require other yet unimplemented options are
updated. This way `flang-new -fc1` is used instead of `f18` when
`FLANG_BUILD_NEW_DRIVER` is set to `On`. In order to facilitate this,
`%flang_fc1` is added in the LIT configuration (lit.cfg.py).
`asFortran` from f18.cpp is duplicated as `getBasicAsFortran` in
FrontendOptions.cpp. At this stage it's hard to find a good place to
share this method. I suggest that we revisit this once a switch from
`f18` to `flang-new` is complete.
Differential Revision: https://reviews.llvm.org/D96483
The following _action_ options are always used with `-fsyntax-only`
(also an _action_ option):
* -fdebug-dump-symbols
* -fdebug-dump-parse-tree
This patch makes the above options imply `-fsyntax-only`.
From the perspective of `f18` this change saves typing and is otherwise
a non-functional change. But it will simplify things in the new driver,
`flang-new`, in which only the last action option is taken into account
and executed. In other words, the following would only run
`-fsyntax-only`:
```
flang-new -fdebug-dump-symbols -fsyntax-only <input>
```
whereas this would only run `-fdebug-dump-symbols`:
```
flang-new -fsyntax-only -fdebug-dump-symbols <input>
```
Differential Revision: https://reviews.llvm.org/D96528
Implementation of Do loop iteration variable check, Do while loop check, Do loop cycle restrictions.
Also to check whether the ordered clause is present on the loop construct if any ordered region ever
binds to a loop region arising from the loop construct.
Files:
check-omp-structure.h
check-omp-structure.cpp
resolve-directives.cpp
Testcases:
omp-do06-positivecases.f90
omp-do06.f90
omp-do08.f90
omp-do09.f90
omp-do10.f90
omp-do11.f90
omp-do12.f90
omp-do13.f90
omp-do14.f90
omp-do15.f90
omp-do16.f90
omp-do17.f90
Reviewed by: Kiran Chandramohan @kiranchandramohan , Valentin Clement @clementval
Differential Revision: https://reviews.llvm.org/D92732
This patch is a follow up of D96422 and move ComplexType to TableGen.
Reviewed By: schweitz, mehdi_amini
Differential Revision: https://reviews.llvm.org/D96610
This patch introduce the fir-opt tool. Similar to mlir-opt for FIR.
It will be used in following patches to test fir opt and round-trip.
Reviewed By: schweitz, mehdi_amini
Differential Revision: https://reviews.llvm.org/D96535
Avoid spurious and confusing macro replacements from things like
-DPIC on Fortran source files whose suffixes indicate that preprocessing
is not expected.
Add gfortran-like "-cpp" and "-nocpp" flags to f18 to force predefinition
of macros independent of the source file suffix.
Differential Revision: https://reviews.llvm.org/D96464
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
Instead of using a message attachment with further details,
emit the details as part of a single message.
Differential Revision: https://reviews.llvm.org/D96465
`find_package(Flang)` does not work as there is a missing `@` in the
FlangConfig.cmake.in file. This patch fixes the issue.
Reviewed By: thopre
Differential Revision: https://reviews.llvm.org/D96484
Most components required for this are already there.
Build and Testing clean.
ninja check-flang
Reviewed By: clementval, tskeith
Differential Revision: https://reviews.llvm.org/D96411
This patch just addresses one of the outstanding TODOs. More
specifically, it moves all the outstanding standard macro predefinitions
from `SetDefaultFortranOpts` to `setDefaultPredefinitions`. This
dedicated method for standard macro predefs was introduced in:
* https://reviews.llvm.org/D96032
This patch is a follow up of D96422 and move the ShapeShiftType to
TableGen.
Reviewed By: mehdi_amini
Differential Revision: https://reviews.llvm.org/D96442
When accessing a specific procedure of a USE-associated generic
interface, we need to allow for the case in which that specific
procedure has the same name as the generic when testing for
its availability in the current scope.
Differential Revision: https://reviews.llvm.org/D96467
Some state in name resolution is stored in the DeclarationVisitor
instance and processed at the end of the specification part.
This state needs to accommodate nested specification parts, namely
the ones that can be nested in a subroutine or function interface
body.
Differential Revision: https://reviews.llvm.org/D96466
This is the first patch of a serie to move FIR types to TableGen format as suggested in D96172.
This patch is setting up the files for FIR types and move the ShapeType to TableGen.
As discussed with @schweitz, I'm taking over this task to help the FIR upstreaming effort.
Reviewed By: mehdi_amini
Differential Revision: https://reviews.llvm.org/D96422
MLIRContext allows its users to access directly to the DialectRegistry it
contains. While sometimes useful for registering additional dialects on an
already existing context, this breaks the encapsulation by essentially giving
raw accesses to a part of the context's internal state. Remove this mutable
access and instead provide a method to append a given DialectRegistry to the
one already contained in the context. Also provide a shortcut mechanism to
construct a context from an already existing registry, which seems to be a
common use case in the wild. Keep read-only access to the registry contained in
the context in case it needs to be copied or used for constructing another
context.
With this change, DialectRegistry is no longer concerned with loading the
dialects and deciding whether to invoke delayed interface registration. Loading
is concentrated in the MLIRContext, and the functionality of the registry
better reflects its name.
Depends On D96137
Reviewed By: mehdi_amini
Differential Revision: https://reviews.llvm.org/D96331
Jean Perier