[flang][openacc][NFC] Extract device_type parser to its own

Move the device_type parser to a separate parser AccDeviceTypeExprList. Preparatory work for D106968.

Reviewed By: kiranchandramohan

Dif

[flang][openacc][NFC] Extract device_type parser to its own

Move the device_type parser to a separate parser AccDeviceTypeExprList. Preparatory work for D106968.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D106967

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[flang][openacc][NFC] Make self clause value optional in ACC.td and extract the parser

Set the isOptional flag for the self clause. Move the optional and parenthesis part of the parser. Update the r

[flang][openacc][NFC] Make self clause value optional in ACC.td and extract the parser

Set the isOptional flag for the self clause. Move the optional and parenthesis part of the parser. Update the rest of the code to deal with the optional value.

Preparatory work for D106968.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D106965

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[flang][OpenACC] Lower parallel loop

Lower the `parallel loop` contrsuct and refactor some of the code
of parallel and loop lowering to be reused.

Also add tests for loop and parallel since they we

[flang][OpenACC] Lower parallel loop

Lower the `parallel loop` contrsuct and refactor some of the code
of parallel and loop lowering to be reused.

Also add tests for loop and parallel since they were not upstreamed.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D128510

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[flang] Explicitly map host associated symbols

Explicitly map host associated symbols in DoConcurrent with shared
locality-spec, clauses in OpenMP/OpenACC. The mapping of host-assoc
symbols is set t

[flang] Explicitly map host associated symbols

Explicitly map host associated symbols in DoConcurrent with shared
locality-spec, clauses in OpenMP/OpenACC. The mapping of host-assoc
symbols is set to their parent SymbolBox. This is achieved through
a new interface function in the AbstractConverter.

This was already upstream for OpenMP.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D128518

Co-authored-by: Kiran Chandramohan <[email protected]>

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[flang][NFC] Move Todo.h from Lower to Optimizer

Remove a backwards dependence from Optimizer -> Lower by moving Todo.h
to the optimizer and out of lowering.

This patch is part of the upstreaming e

[flang][NFC] Move Todo.h from Lower to Optimizer

Remove a backwards dependence from Optimizer -> Lower by moving Todo.h
to the optimizer and out of lowering.

This patch is part of the upstreaming effort from fir-dev branch.

Co-authored-by: Eric Schweitz <[email protected]>

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D127292

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[flang] Add lowering stubs for OpenMP/OpenACC declarative constructs

This patch provides the basic infrastructure for lowering declarative
constructs for OpenMP and OpenACC.

This is part of the ups

[flang] Add lowering stubs for OpenMP/OpenACC declarative constructs

This patch provides the basic infrastructure for lowering declarative
constructs for OpenMP and OpenACC.

This is part of the upstreaming effort from the fir-dev branch in [1].
[1] https://github.com/flang-compiler/f18-llvm-project

Reviewed By: kiranchandramohan, shraiysh, clementval

Differential Revision: https://reviews.llvm.org/D124225

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[NFC] Cosmetic changes to OpenACC.cpp.

Differential Revision: https://reviews.llvm.org/D124272

[flang][NFC] Remove unused variable

[flang[OpenACC] Lower wait directive

This patch adds lowering for the `!$acc wait` directive
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev branch.

Revi

[flang[OpenACC] Lower wait directive

This patch adds lowering for the `!$acc wait` directive
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D122399

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[flang[OpenACC] Lower data directive

This patch adds lowering for the `!$acc data`
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev branch.

Depends on D12

[flang[OpenACC] Lower data directive

This patch adds lowering for the `!$acc data`
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev branch.

Depends on D122384

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D122398

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[flang][OpenACC] Lower update directive

This patch adds lowering for the `!$acc update`
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev branch.

Depends o

[flang][OpenACC] Lower update directive

This patch adds lowering for the `!$acc update`
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev branch.

Depends on D122387

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D122396

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[flang][OpenACC] Lower init/shutdown directive

This patch adds lowering for the `!$acc init` and `!$acc shutdown`
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from

[flang][OpenACC] Lower init/shutdown directive

This patch adds lowering for the `!$acc init` and `!$acc shutdown`
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev branch.

Depends on D122384

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D122387

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[flang][OpenACC] Lower exit data directive

This patch adds lowering for the `!$acc exit data` directive
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev br

[flang][OpenACC] Lower exit data directive

This patch adds lowering for the `!$acc exit data` directive
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev branch.

Depends on D122384

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D122386

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[flang][OpenACC] Lower enter data directive

This patch adds lowering for the `!$acc enter data` directive
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev

[flang][OpenACC] Lower enter data directive

This patch adds lowering for the `!$acc enter data` directive
from the PFT to OpenACC dialect.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D122384

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[flang] Remove 'using namespace mlir;` from header files

Currently, CGOps.h and FIROps.h contain `using namespace mlir;`. Every
file that includes one of these header files (directly and transitivel

[flang] Remove 'using namespace mlir;` from header files

Currently, CGOps.h and FIROps.h contain `using namespace mlir;`. Every
file that includes one of these header files (directly and transitively)
will have the MLIR namespace enabled. With name-clashes within
sub-projects (LLVM and MLIR, MLIR and Flang), this is not desired. Also,
it is not possible to "un-use" a namespace once it is "used". Instead,
we should try to limit `using namespace` to implementation files (i.e.
*.cpp).

This patch removes `using namespace mlir;` from header files and adjusts
other files accordingly. In header and TableGen files, extra namespace
qualifier is added when referring to symbols defined in MLIR. Similar
approach is adopted in source files that didn't require many changes. In
files that would require a lot of changes, `using namespace mlir;` is
added instead.

Differential Revision: https://reviews.llvm.org/D120897

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[flang] Lower function and subroutine calls

This patch introduce basic function/subroutine calls.
Because of the state of lowering only simple scalar arguments
can be used in the calls. This will be

[flang] Lower function and subroutine calls

This patch introduce basic function/subroutine calls.
Because of the state of lowering only simple scalar arguments
can be used in the calls. This will be enhanced in follow up
patches with arrays, allocatable, pointer ans so on.

```
subroutine sub1()
end

subroutine sub2()
call sub1()
end
```

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D120419

Co-authored-by: Eric Schweitz <[email protected]>
Co-authored-by: Jean Perier <[email protected]>
Co-authored-by: V Donaldson <[email protected]>

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[flang] Initial lowering for empty program

This patch enable lowering from Fortran to FIR for a basic empty
program. It brings all the infrastructure needed for that. As discussed
previously, this i

[flang] Initial lowering for empty program

This patch enable lowering from Fortran to FIR for a basic empty
program. It brings all the infrastructure needed for that. As discussed
previously, this is the first patch for lowering and follow up patches
should be smaller.

With this patch we can lower the following code:

```
program basic
end program
```

To a the FIR equivalent:

```
func @_QQmain() {
return
}
```

Follow up patch will add lowering of more complex constructs.

Reviewed By: kiranchandramohan, schweitz, PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D118436

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[flang][NFC] Remove obsolete FIRBuilder and BoxValue

This patch removes some files made obsolete by newer version
of them available in the Optimizer directory.
`flang/include/flang/Lower/FIRBuilder.

[flang][NFC] Remove obsolete FIRBuilder and BoxValue

This patch removes some files made obsolete by newer version
of them available in the Optimizer directory.
`flang/include/flang/Lower/FIRBuilder.h` and `flang/lib/Lower/FIRBuilder.cpp` are
removed and replace by the newer version present in
`flang/include/flang/Optimizer/Builder/FIRBuilder.h` and
`flang/lib/Optimizer/Builder/FIRBuilder.cpp`.
`flang/include/flang/Lower/Support/BoxValue.h` and `flang/lib/Lower/ConvertExpr.cpp` are removed and replace by the newer
version present in `flang/include/flang/Optimizer/Builder/BoxValue.h`

This patch is a preparation to be able to upstream the lowering from
fir-dev.

Reviewed By: jeanPerier, kiranchandramohan

Differential Revision: https://reviews.llvm.org/D118404

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[flang][openacc] Remove unused variable. NFC.

[flang][NFC] Add source line to lowering TODO messages

- Add a fatal error handler that can print a message with source location
before aborting.
- Update TODO macro to take an mlir location argum

[flang][NFC] Add source line to lowering TODO messages

- 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

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[flang] Use mlir::OpState::operator->() to get to methods of mlir::Operation.

This is a preparation step to remove those methods from OpState.

Reviewed By: ftynse

Differential Revision: https://re

[flang] Use mlir::OpState::operator->() to get to methods of mlir::Operation.

This is a preparation step to remove those methods from OpState.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D93194

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[flang][openacc] Add clause validity tests for the update directive

Add couple of clause validity tests for the update directive and check for
the restriction where at least self, host or device cla

[flang][openacc] Add clause validity tests for the update directive

Add couple of clause validity tests for the update directive and check for
the restriction where at least self, host or device clause must appear on the directive.

Reviewed By: sameeranjoshi

Differential Revision: https://reviews.llvm.org/D92447

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[flang][openacc] Lower wait directive

This patch upstream the lowering of Wait directive that was initially done in
https://github.com/flang-compiler/f18-llvm-project/pull/532

Reviewed By: schweitz

[flang][openacc] Lower wait directive

This patch upstream the lowering of Wait directive that was initially done in
https://github.com/flang-compiler/f18-llvm-project/pull/532

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D90489

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[flang][openacc] Lower init and shutdown directive

This patch upstream the lowering of Init and Shutdown directives that was initially done in
https://github.com/flang-compiler/f18-llvm-project/pull

[flang][openacc] Lower init and shutdown directive

This patch upstream the lowering of Init and Shutdown directives that was initially done in
https://github.com/flang-compiler/f18-llvm-project/pull/529

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D90488

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[flang][openacc] Lower update directive

This patch upstream the lowering of Update directive that was initially done in
https://github.com/flang-compiler/f18-llvm-project/pull/528

Reviewed By: schw

[flang][openacc] Lower update directive

This patch upstream the lowering of Update directive that was initially done in
https://github.com/flang-compiler/f18-llvm-project/pull/528

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D90472

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