441 Commits

Author SHA1 Message Date
Valentin Clement
9aeb7f035b
[flang] Lower IO input with vector subscripts
This patch adds lowering for IO input with vector subscripts.
It defines a VectorSubscriptBox class that allow representing and working
with a lowered Designator containing vector subscripts while ensuring
all the subscripts expression are only lowered once.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121806

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-03-16 17:13:23 +01:00
Valentin Clement
94a1106357
[flang] Lower min|max intrinsics
This patch adds lowering for the following intrinsics:
- `max`
- `maxloc`
- `maxval`
- `minloc`
- `minval`

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121701

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
2022-03-15 22:24:10 +01:00
Valentin Clement
8b50353335
[flang] Lower alternate return
This patch adds the lowering infrastructure for the lowering of
alternat returns.

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

Depends on D121698

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121699

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-03-15 22:04:13 +01:00
Valentin Clement
76134f4138
[flang] Lower entry statement
This patch add the lowering for the entry statement.

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

Depends on D121697

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121698

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-03-15 22:02:41 +01:00
Valentin Clement
a1425019e7
[flang] Lower more pointer assignments/disassociation cases
This patch lowers more cases of pointer assignments and
disassociations.

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

Reviewed By: PeteSteinfeld, schweitz

Differential Revision: https://reviews.llvm.org/D121697

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-03-15 21:58:33 +01:00
Valentin Clement
d8222d91c6
[flang] Lower format statement
This patch lowers the format statement.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121611
2022-03-14 18:15:32 +01:00
Valentin Clement
72276bdaff
[flang] Lower pointer component in derived type
This patch lowers pointer component part of derived types to
FIR.

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

Depends on D121383

Reviewed By: PeteSteinfeld, schweitz

Differential Revision: https://reviews.llvm.org/D121384

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-03-10 20:20:55 +01:00
Valentin Clement
88ae0d61c3
[flang] Lower general forall statement
This patch lowers general forall statements. The forall
are lowered to nested loops.

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

Depends on D121385

Reviewed By: PeteSteinfeld, schweitz

Differential Revision: https://reviews.llvm.org/D121386

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-03-10 19:43:50 +01:00
Valentin Clement
7a6a1655d8
[flang] Lower where statement
This patch lowers where statement to FIR.
The where statement is lowered to a conbination of
loops and if conditions.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121385

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-03-10 18:44:23 +01:00
Shraiysh Vaishay
e0f549a43a [flang] Added basic connect to lower OpenMP constructs
Reviewed By: clementval

Differential Revision: https://reviews.llvm.org/D121382
2022-03-10 22:48:25 +05:30
Valentin Clement
589d51ea9f
[flang] Lower basic derived types
This patch lowers basic derived type to FIR.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121383

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-03-10 18:07:20 +01:00
Andrzej Warzynski
092601d4ba [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
2022-03-09 10:19:51 +00:00
Valentin Clement
a49bf0ac38
[flang] Lower associate construct
This patch lowers the `associate` construct.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121239

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-03-08 22:09:26 +01:00
Valentin Clement
78a127a3ef
[flang] Lower computed and assigned goto
This patch lowers the computed and assigned goto statements.

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

Reviewed By: PeteSteinfeld, schweitz

Differential Revision: https://reviews.llvm.org/D121219

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-03-08 20:19:18 +01:00
Valentin Clement
b3eb0e113e
[flang] Lower sum intrinsic
This patch enables the lowering of the `sum` intrinsic. It adds
also infrastructure to deal with optional arguments in intrinsics and
implied loops.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121221

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
2022-03-08 18:50:34 +01:00
Valentin Clement
c5cf1b9034
[flang] Lower allocate and deallocate statements
This patch add the lowering for the allocate
and the deallocate statements.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D121146

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2022-03-07 21:47:28 +01:00
Valentin Clement
764f95a8c7
[flang] Add lowering for host association
This patches adds the code to handle host association for
inner subroutines and functions.

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

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D121134

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2022-03-07 19:57:02 +01:00
Valentin Clement
17d71347b2
[flang] Handle module in lowering pass
This patch enables the lowering of basic modules and functions/subroutines
in modules.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D120819

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-03-02 18:26:43 +01:00
Valentin Clement
7e32cada01
[flang] Lower inquire statement
This patch adds the lowering of the `inquire` statement.

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

Depends on D120822

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D120823

Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-03-02 18:03:29 +01:00
Valentin Clement
46f46a3763
[flang] Lower basic IO file statements
This patches adds lowering for couple of basic io statements such as `flush`,
`endfile`, `backspace` and `rewind`

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

Depends on D120821

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D120822

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-03-02 18:01:23 +01:00
Valentin Clement
db48f7b2f7
[flang] Lower IO open and close statements
This patch adds the lowering of open and close statements

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

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D120821

Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-03-02 17:57:08 +01:00
Valentin Clement
d88dfd2b31
[flang] Handle dynamic array lowering
This patch enables dynamic array lowering
and use the funcationality inside some IO tests.

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

Depends on D120743

Reviewed By: PeteSteinfeld, schweitz

Differential Revision: https://reviews.llvm.org/D120744

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2022-03-01 22:29:49 +01:00
Valentin Clement
8c22cb846f
[flang] Lower basic IO statement
This patch enables the lowering of the print, read and write
IO statements.

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

Reviewed By: PeteSteinfeld, schweitz

Differential Revision: https://reviews.llvm.org/D120743

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Kiran Chandramohan <kiran.chandramohan@arm.com>
2022-03-01 21:48:41 +01:00
River Riddle
23aa5a7446 [mlir] Rename the Standard dialect to the Func dialect
The last remaining operations in the standard dialect all revolve around
FuncOp/function related constructs. This patch simply handles the initial
renaming (which by itself is already huge), but there are a large number
of cleanups unlocked/necessary afterwards:

* Removing a bunch of unnecessary dependencies on Func
* Cleaning up the From/ToStandard conversion passes
* Preparing for the move of FuncOp to the Func dialect

See the discussion at https://discourse.llvm.org/t/standard-dialect-the-final-chapter/6061

Differential Revision: https://reviews.llvm.org/D120624
2022-03-01 12:10:04 -08:00
Valentin Clement
37e84d9be0
[flang] Lower simple character return
Handles function with character return.

Character scalar results are passed as arguments in lowering so
that an assumed length character function callee can access the result
length.

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

Reviewed By: PeteSteinfeld, schweitz

Differential Revision: https://reviews.llvm.org/D120558

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2022-02-25 18:23:13 +01:00
Valentin Clement
f9704f0cfb
[flang] Simple array assignment lowering
This patch handles lowering of simple array assignment.

```
a(:) = 10
```

or

```
a(1) = 1
```

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

Reviewed By: PeteSteinfeld, schweitz

Differential Revision: https://reviews.llvm.org/D120501

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-02-24 21:23:30 +01:00
Valentin Clement
2a59ead118
[flang] Lower allocatable assignment for scalar
Add lowering for simple assignement on allocatable
scalars.

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

Depends on D120483

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D120488

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-02-24 18:13:18 +01:00
Valentin Clement
d0b70a070a
[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 <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2022-02-23 19:50:06 +01:00
Valentin Clement
e641c29f41
[flang] Lower simple scalar assignment
This patch hanlde lowering of simple scalar assignment.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D120058

Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-02-17 18:24:30 +01:00
Valentin Clement
da7c77b82c
[flang] Handle lowering arguments in subroutine and function
This patch adds infrsatrcutrue to be able to lower
arguments in functions and subroutines.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D119957

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-02-16 20:28:07 +01:00
Valentin Clement
ad40cc14a8
[flang] Lower basic function with scalar integer/logical return value
This patch allows the lowring of simple empty function with a
scalar integer or logical return value.
The code in ConvertType.cpp is cleaned up as well. This file was landed
together with the initial flang push and lowering was still a prototype
at that time. Some more cleaning will come with follow up patches.

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

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D119698

Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-02-14 21:32:24 +01:00
Valentin Clement
85b89ed213
[flang] Lower simple RETURN statement
This patch adds the lowering for the RETURN statement
without alternate returns in the main program or in subroutine
and functions.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D119429

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-02-10 18:36:04 +01:00
Kiran Chandramohan
ae37bb9804 [Flang] Add support for lowering the goto statement
This patch adds support for lowering the Fortran goto statement from
parse-tree to MLIR. The goto statement in Fortran is a form of
unstructured control flow. The statement transfers control to the
code starting at the label specified in the statement. This can be
faithfully represented in MLIR by a branch instruction.

To assist the lowering of code with unstructured control flow, blocks
are created in advance and associated with the relevant pre-fir tree
evaluations.

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: clementval, vdonaldson, schweitz, awarzynski

Differential Revision: https://reviews.llvm.org/D118983

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-02-09 09:48:13 +00:00
Valentin Clement
2c2e5a5d0f
[flang] Basic local variable lowering
This patch add lowering for simple local variable.

- The signatures in `ConvertType.h` have been simplified to take advantage of the `AbstractConverter`.
- The lowering make use of the `allocateLocal` from the `FirOpBuilder`.

This lowering is used in patch D118982

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

Reviewed By: kiranchandramohan, jeanPerier, schweitz

Differential Revision: https://reviews.llvm.org/D118978
2022-02-07 09:14:09 +01:00
Valentin Clement
dc6a344637
[flang] Add lowering for integer constant
This patch enables the lowering of integer constant.

The `ScalarExprLowering` class is introduced in `ConvertExpr.cpp` to help
the lowering of expression. This patch adds all the placeholder as well for future
expression lowering with the appropriate TODOs.

Integer constant expression are lowered to `arith.constant` with an integer type corresponding to the kind value.

This patch is in support of D118787

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

Reviewed By: schweitz, kiranchandramohan

Differential Revision: https://reviews.llvm.org/D118786
2022-02-03 11:10:30 +01:00
Valentin Clement
415267407d
[flang] Switch return to ExtendedValue in AbstractConverter and Bridge
Change the signature of `genExprAddr`, `genExprValue` to return a `fir::ExtendedValue` instead of a simple `mlir::Value`

This patch is a preparation for more lowering to be upstream. It supports D118786 and D118787.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D118785
2022-02-02 18:44:28 +01:00
Valentin Clement
db01b123d0
[flang] Lower PAUSE statement
Lower the PAUSE statement to a runtime call.

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

Reviewed By: kiranchandramohan, schweitz

Differential Revision: https://reviews.llvm.org/D118699

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2022-02-02 08:16:12 +01:00
Valentin Clement
aab4263ad6
[flang] Lower basic STOP statement
This patch lowers STOP statement without arguments
and ERROR STOP. STOP statement with arguments lowering will
come in later patches ince it requires some expression lowering
to be added.
STOP statement is lowered to a runtime call.

Also makes sure we are creating a constant in the MLIR arith constant.

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

Reviewed By: kiranchandramohan, schweitz

Differential Revision: https://reviews.llvm.org/D118697

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2022-02-01 20:54:45 +01:00
Valentin Clement
89275300d8
[flang] Add lowering for basic empty SUBROUTINE
This patch adds the ability to lower an empty subroutine.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D118695
2022-02-01 15:28:18 +01:00
Valentin Clement
990759136a
[flang] Add lowering placeholders
This patch puts in place the differents
function to lower the evaluation list. All functions
are just placholders with TODOs for now.
Follow up patches will bring the proper lowering in these
functions.

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D118678
2022-02-01 13:50:09 +01:00
Valentin Clement
e1a12767ee
[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
2022-01-28 22:39:58 +01:00