Commit Graph

1438 Commits

Author SHA1 Message Date
Peter Klausler 1e954a1c66 [flang] Fix off-by-one results from folding MAXEXPONENT and MINEXPONENT
Every one was too low by one.

Differential Revision: https://reviews.llvm.org/D114027
2021-11-18 09:04:04 -08:00
Andrzej Warzynski e6c66ef55e [flang][CodeGen] Transform `fir.field_index` to a sequence of LLVM MLIR
This patch extends the `FIRToLLVMLowering` pass in Flang by adding a
hook to transform `fir.field_index` to a sequence of LLVM MLIR
instructions.

This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Differential Revision: https://reviews.llvm.org/D113988

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-18 16:35:16 +00:00
Andrzej Warzynski b2ad420a78 [flang][nfc] Remove trailing whitespaces from tests 2021-11-18 14:22:18 +00:00
Andrzej Warzynski 22d332a0a2 [flang][codegen] Add `fir.end` conversion placeholder
This patch extends the FIRToLLVMLowering pass in Flang by adding a hook
to transform fir.end. This is just a placeholder for now as fir.end is
not required yet.

This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Patch originally written by:
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>

Differential Revision: https://reviews.llvm.org/D113295
2021-11-18 14:19:26 +00:00
Diana Picus 0800109d26 [fir] Add tests for mlir::ComplexType conversion
It turns out that mlir::ComplexType is translated the same way with or
without a conversion in TypeConverter.h. Add tests to make sure this
doesn't change in the future.

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

Differential Revision: https://reviews.llvm.org/D113883
2021-11-18 12:44:17 +00:00
Kiran Chandramohan cc505c0bb7 [Flang] Notify conversion failure for Proc ops, types
Add the FIR to LLVM conversion patterns for the BoxProcHostOp, EmboxProcOp,
and UnboxProcOp ops and the boxproc type. These are currently unimplemented.
Implementation will come at a later time when support for Fortran 2003
procedure pointer feature is added.

Reviewed By: clementval, rovka

Differential Revision: https://reviews.llvm.org/D113879

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-18 12:27:25 +00:00
Valentin Clement af6ee58092
[fir] Add fir.embox conversion
Convert a `fir.embox` operation to LLVM IR dialect.
A `fir.embox` is converted to a sequence of operation that
create, allocate if needed, and populate a descriptor.

Current limitiation: alignment is set by default but should be retrieved in the specific target.

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

Reviewed By: kiranchandramohan, awarzynski

Differential Revision: https://reviews.llvm.org/D113756

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-18 11:06:39 +01:00
Diana Picus e81d73ed92 [fir] Add fir.constc conversion
Add the codegen for fir.constc.

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

Differential Revision: https://reviews.llvm.org/D114063

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-18 08:46:10 +00:00
Damian Rouson c1becf483c [flang] Add a semantics test for co_sum
Test a range of acceptable forms of co_sum calls, including
combinations of keyword and non-keyword actual arguments of
numeric types.  Also test that several invalid forms of
co_sum call generate the correct error messages.

Reviewed By: kiranchandramohan, ktras

Differential Revision: https://reviews.llvm.org/D113076
2021-11-17 16:37:00 -08:00
Jean Perier 394d6fcf3e [flang] Check ArrayRef base for contiguity in IsSimplyContiguousHelper
Previous code was returning true for `x(:)` where x is a pointer without
the contiguous attribute.
In case the array ref is a whole array section, check the base for contiguity
to solve the issue.

Differential Revision: https://reviews.llvm.org/D114084
2021-11-17 18:18:58 +01:00
Valentin Clement 964536cf04
[fir] !fir.tdesc type conversion
Add !fir.tdesc type conversion.
!fir.tdesc is converted to a llvm.ptr<i8>.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113769

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-17 13:31:14 +01:00
Valentin Clement e38ef2ff71
[fir] Add fir.box_tdesc conversion
This patch adds the conversion pattern for
`fir.box_tdes`.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113931

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-17 12:02:48 +01:00
Valentin Clement 1ed5a90f70
[fir] Add conversion patterns for slice, shape, shapeshift and shift ops
The information in these perations is used by other operation.
At this point they should not have anymore uses.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113971

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-17 10:35:56 +01:00
Valentin Clement 1a2ec6670a
[fir] Add fir.string_lit conversion
This patch adds the conversion pattern for
the fir.string_lit operation.

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

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D113992

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-16 21:13:45 +01:00
William S. Moses 30d87d4a5d [MLIR][LLVM] Permit integer types in switch other than i32
LLVM switchop currently only permits i32. Both LLVM IR and MLIR Standard switch permit other integer types leading to an illegal state when lowering an i8 switch from MLIR standard

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D113955
2021-11-16 12:00:37 -05:00
Andrzej Warzynski 50acc6d0f7 [flang][fir] Add missing `HasParent` in `fir_DTEntryOp`
Differential Revision: https://reviews.llvm.org/D113674
2021-11-16 15:40:55 +00:00
Andrzej Warzynski 6c3d7fd4c5 [flang][CodeGen] Transform `fir.boxchar_len` to a sequence of LLVM MLIR
This patch extends the `FIRToLLVMLowering` pass in Flang by adding a
hook to transform `fir.boxchar_len` to a sequence of LLVM MLIR
instructions.

This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Differential Revision: https://reviews.llvm.org/D113763

Originally written by:
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-16 13:49:23 +00:00
Valentin Clement 3124618704
[fir] Add fir.gentypedesc conversion
Add conversion pattern for the GenTypeDescOp.
Convert to a global constant with an addressof.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113766

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-16 14:41:00 +01:00
Diana Picus f1dfc0275c [fir] Add fir.cmpc conversion
This patch adds the codegen for fir.cmpc. The real and imaginary parts
are extracted and compared separately. For the .EQ. predicate the
results are AND'd, for the .NE. predicate the results are OR'd, and for
other predicates we keep only the result on the real parts.

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

Differential Revision: https://reviews.llvm.org/D113976

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-16 12:26:27 +00:00
Peter Steinfeld 4f11944652 [flang] Allow implicit procedure pointers to associate with explicit procedures
Section 10.2.2.4, paragraph 3 states that, for procedure pointer assignment:
  If the pointer object has an explicit interface, its characteristics shall be
  the same as the pointer target ...

Thus, it's illegal for a procedure pointer with an explicit interface to be
associated with a procedure whose interface is implicit.  However, there's no
prohibition that disallows a procedure pointer with an implicit interface from
being associated with a procedure whose interface is explicit.

We were incorrectly emitting an error message for this latter case.

We were also not covering the case of procedures with explicit
interfaces where calling them requires the use of a descriptor.  Such
procedures cannot be associated with procedure pointers with implicit
interfaces.

Differential Revision: https://reviews.llvm.org/D113706
2021-11-15 09:51:25 -08:00
Kiran Chandramohan 49c08a22ed [Flang] Add the FIR LLVMPointer Type
Add a fir.llvm_ptr type to allow any level of indirections

Currently, fir pointer types (fir.ref, fir.ptr, and fir.heap) carry
a special Fortran semantics, and cannot be freely combined/nested.

When implementing some features, lowering sometimes needs more liberty
regarding the number of indirection levels. Add a fir.llvm_ptr that has
no constraints.

Allow its usage in fir.coordinate_op, fir.load, and fir.store.

Convert the FIR LLVMPointer to an LLVMPointer in the LLVM dialect.

Reviewed By: clementval

Differential Revision: https://reviews.llvm.org/D113755

Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-15 15:57:59 +00:00
Valentin Clement 677df8c709
[fir] Add fir.global_len conversion placeholder
As for D113662, this patch just add a place holder for
the fir.global_len operation conversion. This operation
is part of F20xx and is not implemented yet.

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

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D113887
2021-11-15 16:47:20 +01:00
Andrzej Warzynski 14867ffc7c [flang][CodeGen] Transform `fir.unboxchar` to a sequence of LLVM MLIR
This patch extends the `FIRToLLVMLowering` pass in Flang by adding a
hook to transform `fir.unboxchar` to a sequence of LLVM MLIR
instructions.

This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Differential Revision: https://reviews.llvm.org/D113747

Originally written by:
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-15 15:34:55 +00:00
Valentin Clement 2a299e4f06
[fir] Add fir.select_type conversion placeholder
As for D113662, this patch just add a place holder for
the `fir.select_type` operation conversion. This operation
is part of F20xx and is not implemented yet.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113878
2021-11-15 14:35:57 +01:00
Andrzej Warzynski 1e77b09538 [flang][CodeGen] Transform `fir.emboxchar` to a sequence of LLVM MLIR
This patch extends the `FIRToLLVMLowering` pass in Flang by adding a
hook to transform `fir.emboxchar` to a sequence of LLVM MLIR
instructions.

This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Differential Revision: https://reviews.llvm.org/D113666

Patch originally written by:
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-15 11:09:12 +00:00
Valentin Clement 6c8eecd676
[fir] Add !fir.len type conversion
This patch adds the !fir.len type conversion. The type is converted
to the a 32 bits integer.

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

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113658
2021-11-15 10:18:23 +01:00
Peter Klausler 85ec449352 [flang] Fix ORDER= argument to RESHAPE
The ORDER= argument to the transformational intrinsic function RESHAPE
was being misinterpreted in an inverted way that could be detected only
with 3-d or higher rank array.  Fix in both folding and the runtime, and
extend tests.

Differential Revision: https://reviews.llvm.org/D113699
2021-11-12 10:25:00 -08:00
Kiran Chandramohan aa26119b82 [Flang] Add type conversion for FIR integer kind
Convert fir.int<kind> to their llvm equivalent type

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

Reviewed By: clementval, awarzynski

Differential Revision: https://reviews.llvm.org/D113660

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-12 10:15:21 +00:00
Kiran Chandramohan 2b247941ca [Flang] Add type conversion for FIR heap type
Convert fir.heap type to its llvm equivalent type (llvm.ptr)

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

Reviewed By: clementval

Differential Revision: https://reviews.llvm.org/D113670

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-12 09:49:54 +00:00
Andrzej Warzynski 420ad7ce7d [flang][CodeGen] Transform `IsPresentOpConversion` and `AbsentOpConversion`
This patch extends the `FIRToLLVMLowering` pass in Flang by adding
hooks to transform `fir.is_present` and `fir.absent` to the LLVM dialect
of MLIR.

This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Differential Revision: https://reviews.llvm.org/D113395

Originally written by:
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-11 18:07:51 +00:00
Valentin Clement b67be52054
[fir] Add !fir.field type conversion
This patch adds conversion for !fir.field types.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113669

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-11 15:40:15 +01:00
Valentin Clement 39f4ef8146
[fir] Add fir.select_case conversion
The `fir.select_case` operation is converted to a if-then-else ladder.

Conversion of `fir.select_case` operation with character is not
implemented yet.

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

Reviewed By: kiranchandramohan, mehdi_amini

Differential Revision: https://reviews.llvm.org/D113484

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-11 15:00:51 +01:00
Valentin Clement 9534e361ea
[fir] Add placeholder conversion pattern for disptach operations
`fir.dispatch`, `fir.dispatch_table` and `fir.dt_entry` are operations
for type-bound procedures. This patch just adds placeholder conversion
pattern that currently fails since F2003 is not implemented yet.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113662
2021-11-11 13:58:59 +01:00
Diana Picus 1e6d9c06a5 [fir] Add !fir.alloca conversion
Convert !fir.alloca into !llvm.alloca.

This also contains a fix for verifyInType in FIROps.cpp, to make sure we
can handle a !fir.ptr<!fir.array<?xN>>.

Differential Revision: https://reviews.llvm.org/D113563

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-11 11:26:33 +00:00
Andrzej Warzynski bb2018261e [flang][codegen] Add type conversion for `fir.boxchar`
This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Differential Revision: https://reviews.llvm.org/D113571

Patch originally written by:
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-11 10:28:40 +00:00
Valentin Clement afcacccd5a
[fir] Add !fir.vector type conversion
This patch adds the !fir.vector type conversion. The type is converted
to the builtin vector type.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113657

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-11 11:21:55 +01:00
Valentin Clement b6e44ecd6e
[fir] Add fir.box_isarray, fir.box_isptr and fir.box_isalloc conversion.
This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D113566

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-11 10:41:06 +01:00
Valentin Clement 92d205672a
[fir] Remove `fir.unbox` operation
`fir.unbox` operation is an old operation that is no longer required.
There are couple of other operations that can be used to extract
information from a `fir.box` such as `fir.box_rank`, `fir.box_addr`,
`fir.box_dims`.

This was found during the upstreaming process.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D113581
2021-11-10 20:30:10 +01:00
Valentin Clement df3b9810c7
[fir] Add fir.box_rank, fir.box_addr, fir.box_dims and fir.box_elesize conversion
This patch adds conversion for basic box operations that extract
information from the box.

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

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D113551

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-10 15:35:19 +01:00
Diana Picus a343b74f85 [fir] Add !fir.char type conversion
This patch is part of the upstreaming effort from fir-dev.

Differential Revision: https://reviews.llvm.org/D113560

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-10 12:27:58 +00:00
Diana Picus deafc6fc6d [fir] Add !fir.ptr type conversion
This patch is part of the upstreaming effort for fir-dev.

Differential Revision: https://reviews.llvm.org/D113559

Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-10 12:27:39 +00:00
Andrzej Warzynski e3349fa1a3 [flang][CodeGen] Transform `fir.{store|load}` to `llvm.{store|load}`
This patch extends the `FIRToLLVMLowering` pass in Flang by adding a
hook to transform `fir.store`/`fir.load` to `llvm.store`/`fir.load`,
respectively.

This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Differential Revision: https://reviews.llvm.org/D113090

Patch originally written by:
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-09 20:22:45 +00:00
Emil Kieri 384b4e0d33 [flang] Fix error in characteristics check at procedure pointer assignment
If the procedure pointer has an explicit interface, its characteristics must
equal the characteristics of its target, except that the target may be pure or
elemental also when the pointer is not (cf. F2018 10.2.2.4(3)). In the semantics
check for assignment of procedure pointers, the attributes of the procedures
were not checked correctly due to a typo. This caused some illegal
pointer-target-combinations to pass without raising an error. Fix this, and
expand the test case to improve the coverage of procedure pointer assignment
checks.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D113368
2021-11-09 18:46:54 +01:00
Valentin Clement 092cee5f7f
[fir] Add fir.convert op conversion from FIR to LLVM IR
Add conversion pattern for the `fir.convert` operation.

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

This patch was previously landed with a truncated version that
was failing the windows buildbot.

Reviewed By: rovka, awarzynski

Differential Revision: https://reviews.llvm.org/D113469

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-09 15:38:50 +01:00
Valentin Clement 9d9019c77c
Revert "[fir] Add fir.convert op conversion from FIR to LLVM IR"
This reverts commit 165879ec31.

Windows buildbot failure
2021-11-09 15:03:51 +01:00
Valentin Clement 165879ec31
[fir] Add fir.convert op conversion from FIR to LLVM IR
Add conversion pattern for the `fir.convert` operation.

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

Reviewed By: rovka, awarzynski

Differential Revision: https://reviews.llvm.org/D113469

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-09 14:55:24 +01:00
Valentin Clement fcb5a2b7d9
[fir] Force target for FIR to LLVM IR conversion 2021-11-09 14:26:40 +01:00
Valentin Clement 7b5132dae8
[fir] Add complex operations conversion from FIR LLVM IR
This patch add conversion for primitive operations on complex types.
- fir.addc
- fir.subc
- fir.mulc
- fir.divc
- fir.negc

This adds also the type conversion for !fir.complex<KIND> type.

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

This patch was updated to avoid failure on windows buildbot.
Flang codegen does not support windows target so we force the test
to use a known target instead.

Reviewed By: kiranchandramohan, rovka

Differential Revision: https://reviews.llvm.org/D113434

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-09 14:17:34 +01:00
Valentin Clement 9b7c584ed8
Revert "[fir] Add complex operations conversion from FIR LLVM IR"
This reverts commit b9bc64ba14.

flang-x86_64-windows is failing with this patch
2021-11-09 13:07:36 +01:00
Valentin Clement b9bc64ba14
[fir] Add complex operations conversion from FIR LLVM IR
This patch add conversion for primitive operations on complex types.
- fir.addc
- fir.subc
- fir.mulc
- fir.divc
- fir.negc

This adds also the type conversion for !fir.complex<KIND> type.

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

Reviewed By: rovka

Differential Revision: https://reviews.llvm.org/D113434

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-09 11:05:29 +01:00
Diana Picus 65431d3aeb [fir] TargetRewrite: Rewrite COMPLEX values
Rewrite function signatures and calls to functions that accept or return
COMPLEX values.

Also teach insert_value and extract_value about the MLIR ComplexType, by
adding AnyComplex to AnyCompositeLike.

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

Differential Revision: https://reviews.llvm.org/D113273

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Kiran Chandramohan <kiran.chandramohan@arm.com>
Co-authored-by: Tim Keith <tkeith@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-09 09:26:10 +00:00
Diana Picus 4c263ede54 [flang] Add TargetRewrite pass
This patch adds the basic infrastructure for the TargetRewrite pass,
which rewrites certain FIR dialect operations into target specific
forms. In particular, it converts boxchar function parameters, call
arguments and return values. Other convertions will be included in
future patches.

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

Differential Revision: https://reviews.llvm.org/D112910

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Kiran Chandramohan <kiran.chandramohan@arm.com>
Co-authored-by: Tim Keith <tkeith@nvidia.com>
2021-11-09 07:57:31 +00:00
Peter Klausler ca47447952 [flang] Don't reference non-invariant symbols in shape expressions
When an array's shape involves references to symbols that are not
invariant in a scope -- the classic example being a dummy array
with an explicit shape involving other dummy arguments -- the
compiler was creating shape expressions that referenced those
symbols.  This might be valid if those symbols are somehow
captured and copied at each entry point to a subprogram, and
the copies referenced in the shapes instead, but that's not
the case.

This patch introduces a new expression predicate IsScopeInvariantExpr(),
which defines a class of expressions that contains constant expressions
(in the sense that the standard uses that term) as well as references
to items that may be safely accessed in a context-free way throughout
their scopes.   This includes dummy arguments that are INTENT(IN)
and not VALUE, descriptor inquiries into descriptors that cannot
change, and bare LEN type parameters within the definitions of
derived types.  The new predicate is then used in shape analysis
to winnow out results that would have otherwise been contextual.

Differential Revision: https://reviews.llvm.org/D113309
2021-11-08 12:48:47 -08:00
Peter Klausler 80f0bb5971 [flang] Distinguish error/warning cases for bad jumps into constructs
Previously, jumps to labels in constructs from exterior statements
would elicit only a warning.  Upgrade these to errors unless the
branch into the construct would enter into only DO, IF, and SELECT CASE
constructs, whose interiors don't scope variables or have other
set-up/tear-down semantics.  Branches into these "safe" constructs
are still errors if they're nested in an unsafe construct that doesn't
also enclose the exterior branch statement.

Differential Revision: https://reviews.llvm.org/D113310
2021-11-08 11:52:01 -08:00
Peter Klausler 333b419ad0 [flang] Fix folding of EPSILON()
The value of EPSILON() was off by one power of two due to my
misreading of the standard; this patch corrects it.
Confirmed by checking other Fortran compilers, which all agree.

Differential Revision: https://reviews.llvm.org/D113308
2021-11-08 10:50:28 -08:00
Valentin Clement 59a4bbe26c
[fir] Add !fir.logical type conversion
Add conversion from !fir.logical types to LLVM IR Dialect types.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113405

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-08 17:54:55 +01:00
Valentin Clement 7e92b759ed
[fir] Add fir.box type conversion
This patch add the `!fir.box` type conversion to llvm.
`fir.box` is converted to the descriptor as defined in the ISO_Fortran_binding.h
and the addendum defined in descriptor.h.

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

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D113288

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2021-11-08 14:18:11 +01:00
Andrzej Warzynski ddd11b9a4b [flang][CodeGen] Transform `fir.call` to `llvm.call`
This patch extends the `FIRToLLVMLowering` pass in Flang by adding a
hook to transform `fir.call` to `llvm.call`.

This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Patch originally written by:
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>

Differential Revision: https://reviews.llvm.org/D113278
2021-11-08 11:43:54 +00:00
Valentin Clement 29abf2a4a4
[fir] Add test for FIR types conversion
Add a separate file to test FIR types conversion to LLVM types.
Conversion comes from `flang/lib/Optimizer/CodeGen/TypeConverter.h`

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

Reviewed By: kiranchandramohan, awarzynski

Differential Revision: https://reviews.llvm.org/D113283
2021-11-08 09:41:39 +01:00
Valentin Clement 54c563474a
[fir] Add fir.extract_value and fir.insert_value conversion
This patch add the conversion pattern for fir.extract_value
and fir.insert_value. fir.extract_value is lowered to llvm.extractvalue
anf fir.insert_value is lowered to llvm.insertvalue.
This patch also adds the type conversion for the BoxType and RecordType
needed to have some comprehensive tests.

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

This patch was landed and reverted once.
TypeBuilderFunc getModel<Fortran::ISO::CFI_index_t>() was clashing
with getModel<long long> on windows since they both are 64 bits
signed interger. On linux CFI_index_t is long. Change CFI_index_t
to getModel<long>.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D112961

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-07 21:59:01 +01:00
Valentin Clement 7a189fb267
Revert "[fir] Add fir.extract_value and fir.insert_value conversion"
This reverts commit ea55503d7c.
2021-11-05 22:16:37 +01:00
Valentin Clement ea55503d7c
[fir] Add fir.extract_value and fir.insert_value conversion
This patch add the conversion pattern for fir.extract_value
and fir.insert_value. fir.extract_value is lowered to llvm.extractvalue
anf fir.insert_value is lowered to llvm.insertvalue.
This patch also adds the type conversion for the BoxType and RecordType
needed to have some comprehensive tests.

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

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D112961

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-05 15:53:42 +01:00
Valentin Clement 8c23990949
[fir] Add fir.select and fir.select_rank FIR to LLVM IR conversion patterns
The `fir.select` and `fir.select_rank` are lowered to llvm.switch.

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

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D113089

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-05 12:54:51 +01:00
Kiran Chandramohan 48dc5c8e73 [Flang][OpenMP] Use the ultimate symbol in a call to the IsPointer function
The IsPointer check currently fails for host-associated symbols in OpenMP
regions. This causes some failures in semantic checks for pointer association
in an OpenMP region. Fix is to use the ultimate symbol in the call to the
IsPointer function in CheckPointerAssignment function in
lib/Semantics/pointer-assignment.cpp.

Reviewed By: klausler, peixin

Differential Revision: https://reviews.llvm.org/D112876
2021-11-04 19:53:58 +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 0a95abb7dc [flang][flang-omp-report] Removed unnecessary comments in flang-omp-report plugin tests
This patch removes unnecessary comments in the flang-omp-report
plugin tests which can be implied from the file name and run command.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D112817
2021-11-04 13:46:19 +00:00
Valentin Clement 3ae8e44215
[fir] Add fir.insert_on_range conversion
Convert fir.insert_on_range operation to corresponding
llvm.insertvalue operations.

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

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D112896
2021-11-04 10:36:20 +01:00
Valentin Clement c86b4503a9
[fir] Restrict array type on fir.insert_on_range
Sequence type had no restriction on the insert_on_range operation.
This patch adds a restriction for the type to have constant shape
and size.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D113092
2021-11-04 08:54:09 +01:00
Valentin Clement 52d813edcc
[fir] Use notifyMatchFailure in fir.zero_bits conversion
Change emitOpError to notifyMatchFailure in conversion pattern.

Post-commit change after D113014

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D113091
2021-11-03 20:45:24 +01:00
Valentin Clement 3c7ff45cbb
[fir] Add substr information to fircg.ext_embox and fircg.ext_rebox operations
This patch adds the substring information to the fircg.ext_embox and
fircg.ext_rebox operations.

Substring is used for CHARACTER types.

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

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D112807

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-03 10:15:10 +01:00
Andrzej Warzynski 32e08248aa [flang][CodeGen] Transform `fir.unreachable` to `llvm.unreachable`
This patch extends the `FIRToLLVMLowering` pass in Flang by adding a
hook to transform `fir.unreachable` to `llvm.unreachable`.

This is part of the upstreaming effort from the `fir-dev` branch in [1].

[1] https://github.com/flang-compiler/f18-llvm-project

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>

Differential Revision: https://reviews.llvm.org/D113023
2021-11-02 18:22:51 +00:00
Valentin Clement a7a6135925
[fir] Add fir.zero_bits conversion pattern to LLVM IR dialect
This patch adds the ZeroOpConversion pattern to LLVM IR dialect.
Conversion of aggregate types is not implemented yet and will trigger a
failure to legalize the operation. This is tested in the
convert-to-llvm-invalid.fir test file.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113014

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-02 16:54:34 +01:00
Valentin Clement 044d5b5dd1
[fir] Add base of the FIR to LLVM IR pass
This patch adds the base of the FIR to LLVM IR Dialect conversion pass.
It currently can convert the following operations:
 - fir.global
 - fir.has_value
 - fir.address_of
 - fir.undefined

This patch is part of the upstreaming effort from fir-dev branch. It does not
cover all FIR operations in order to have small patches. Several patches will
follow to convert other operations.

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D112845
2021-10-29 23:21:43 +02:00
peter klausler f70343d926 [flang] Fix combined folding of FINDLOC/MAXLOC/MINLOC
The tests for folding these intrinsics neglected to name the
logical scalars with a leading "test_", so test failures caused
by recent work to implement a combined constant folding facility
for these intrinsics wasn't catching some bugs.  This patch fixes
the tests and the bugs.

Differential Revision: https://reviews.llvm.org/D112741
2021-10-29 11:00:11 -07:00
Nimish Mishra 9faed889cf Fixed erring semantic errors arising from D108904 2021-10-30 03:44:59 +05:30
peter klausler a94b721d26 [flang] Improve error message for misuse of NULL(mold) as data statement constant
While "null()" is accepted as a data statement constant when it
corresponds to a pointer object, "null(mold=p)" and "null(p)"
are not allowed.  The current error messages simply complain
that null is not an array.  This patch adds a context-sensitive
message to the effect that a data statement constant followed
by non-empty parentheses must be an array or structure constructor.

(Note that f18 can't simply special-case the name "null" when parsing
data statement constants, since programs are free to repurpose that
name as an array or derived type.)

Differential Revision: https://reviews.llvm.org/D112740
2021-10-28 15:20:41 -07:00
peter klausler d48236a51c [flang] Fold SPREAD
Implements constant folding of the transformational intrinsic
function SPREAD().

Differential Revision: https://reviews.llvm.org/D112739
2021-10-28 14:10:16 -07:00
Emil Kieri 848cca6c5b [flang] Checks for pointers to intrinsic functions
Check that when a procedure pointer is initialised or assigned with an intrinsic
function, or when its interface is being defined by one, that intrinsic function
is unrestricted specific (listed in Table 16.2 of F'2018).

Mark intrinsics LGE, LGT, LLE, and LLT as restricted specific. Getting their
classifications right helps in designing the tests.

Differential Revision: https://reviews.llvm.org/D112381
2021-10-28 12:30:29 +02:00
Valentin Clement 9daec09551
[fir] Avoid slice with substr in fir.array_load, fir.array_coor and fir.array_merge_store
Substring information on slice operation has been added in D112441.
The operations fir.array_load, fir.array_coor and fir.array_merge_store can take
a slice but not with a substring. This patch add this check in their verifier.

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

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D112568
2021-10-26 21:44:25 +02:00
Valentin Clement 7812f510d2
[fir] Add substring to fir.slice operation
This patch adds the substriing information to the fir.slice
operation. This will be used by character operations in later
upstreaming patches.

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

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D112441

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-10-26 10:33:40 +02:00
peter klausler c4ba1108dd [flang] Extension to distinguish specific procedures
Allocatable dummy arguments can be used to distinguish
two specific procedures in a generic interface when
it is the case that exactly one of them is polymorphic
or exactly one of them is unlimited polymorphic.  The
standard requires that an actual argument corresponding
to an (unlimited) polymorphic allocatable dummy argument
must also be an (unlimited) polymorphic allocatable, so an
actual argument that's acceptable to one procedure must
necessarily be a bad match for the other.

Differential Revision: https://reviews.llvm.org/D112237
2021-10-22 12:38:21 -07:00
peter klausler f2360e1156 [flang] Enforce rest of semantic constraint C919
A reference to an allocatable or pointer component must be applied
to a scalar base object.  (This is the second part of constraint C919;
the first part is already checked.)

Differential Revision: https://reviews.llvm.org/D112241
2021-10-22 11:35:58 -07:00
peter klausler d5074c7166 [flang] Fix bogus folding error for ISHFT(x, negative)
Negative shift counts are of course valid for ISHFT when
shifting to the right.  This patch decouples the folding of
ISHFT from that of SHIFTA/L/R and adds tests.

Differential Revision: https://reviews.llvm.org/D112244
2021-10-22 10:38:27 -07:00
peter klausler 2f80b73e0c [flang] Fold BTEST
Implements constant folding for BTEST intrinsic function.

Differential Revision: https://reviews.llvm.org/D111849
2021-10-18 13:46:46 -07:00
PeixinQiao dd8c8d4b7c This patch supports the following checks for THREADPRIVATE Directive:
```
[5.1] 2.21.2 THREADPRIVATE Directive
A variable that appears in a threadprivate directive must be declared in
the scope of a module or have the SAVE attribute, either explicitly or
implicitly.
A variable that appears in a threadprivate directive must not be an
element of a common block or appear in an EQUIVALENCE statement.
```

This patch supports the following checks for DECLARE TARGET Directive:
```
[5.1] 2.14.7 Declare Target Directive
A variable that is part of another variable (as an array, structure
element or type parameter inquiry) cannot appear in a declare
target directive.
A variable that appears in a declare target directive must be declared
in the scope of a module or have the SAVE attribute, either explicitly
or implicitly.
A variable that appears in a declare target directive must not be an
element of a common block or appear in an EQUIVALENCE statement.
```

As Fortran 2018 standard [8.5.16] states, a variable, common block, or
procedure pointer declared in the scoping unit of a main program,
module, or submodule implicitly has the SAVE attribute, which may be
confirmed by explicit specification.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D109864
2021-10-17 22:08:02 +08:00
peter klausler 0fcda9ae57 [flang] Admit NULL() in generic procedure resolution cases
Semantics is rejecting valid programs with NULL() actual arguments
to generic interfaces, including user-defined operators.  Subclause
16.9.144(para 6) makes clear that NULL() can be a valid actual
argument to a generic interface so long as it does not produce
ambiguity.  This patch handles those cases, revises existing
tests, and adjust an error message about NULL() operands to
appear less like a blanket prohibition.

Differential Revision: https://reviews.llvm.org/D111850
2021-10-14 16:02:17 -07:00
peter klausler 6965a776ee [flang] Fold LGE/LGT/LLE/LLT intrinsic functions
Fold the legacy intrinsic functions LGE, LGT, LLE, & LLT
by rewriting them into character relational expressions and
then folding those.  Also fix folding of comparisons of
character values of distinct lengths: the shorter value must
be padded with blanks.  (This fix exposed some bad test cases,
which are also fixed.)

Differential Revision: https://reviews.llvm.org/D111843
2021-10-14 15:24:03 -07:00
peter klausler 1062f989af [flang] Expunge bogus semantic check for ELEMENTAL without dummies
Semantics refuses valid ELEMENTAL subprograms without dummy arguments,
but there's no such constraint in the standard; indeed, subclause
15.8.2 discusses the meaning of calls to ELEMENTAL functions with
arguments.  Remove the check and its test.

Differential Revision: https://reviews.llvm.org/D111832
2021-10-14 14:33:30 -07:00
Mogball a54f4eae0e [MLIR] Replace std ops with arith dialect ops
Precursor: https://reviews.llvm.org/D110200

Removed redundant ops from the standard dialect that were moved to the
`arith` or `math` dialects.

Renamed all instances of operations in the codebase and in tests.

Reviewed By: rriddle, jpienaar

Differential Revision: https://reviews.llvm.org/D110797
2021-10-13 03:07:03 +00:00
Jean Perier 68d692375c
[fir] Add cfg conversion pass
This patch upstream the cfg conversion pass. This pass
rewrite FIR loop-like operation to a CFG.

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

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Valentin Clement <clementval@gmail.com>

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D111095
2021-10-12 23:01:54 +02:00
Nimish Mishra fe2d053c45 Added OpenMP 5.0 specification based semantic checks for CRITICAL construct name resolution
As reported in https://bugs.llvm.org/show_bug.cgi?id=48145, name resolution for omp critical construct was failing. This patch adds functionality to help that name resolution as well as implementation to catch name mismatches.

The following semantic restrictions are therefore handled here:

- If a name is specified on a critical directive, the same name must also be specified on the end critical directive

- If no name appears on the critical directive, no name can appear on the end critical directive

- If a name appears on either the start critical directive or the end critical directive

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D110502
2021-10-12 22:18:24 +05:30
Nimish Mishra d4717b9b9d [flang][OpenMP] Added test case for OpenMP 5.0 specification based semantic checks for parallel sections construct
Parallel sections directive borrows the semantic checks from both sections directive and parallel directive. Semantic checks for both are merged in main branch; this test case is added to make sure correct semantic checks upon merging the two.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D111438
2021-10-12 15:12:24 +05:30
Eric Schweitz c3abfe4207
[fir] Add fir.convert canonicalization patterns
Add rewrite patterns for fir.convert op canonicalization.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D111537

Co-authored-by: Valentin Clement <clementval@gmail.com>
2021-10-11 16:27:48 +02:00
Andrzej Warzynski 6f8ef1d6e8 [flang][driver] Add actions that execute despite semantic errors
This patch adds a new abstract class for frontend actions:
`PrescanAndSemaDebugAction`. It's almost identical to
`PrescanAndSemaAction`, but in the presence of semantic errors it does
not skip the corresponding `ExecuteAction` specialisation. Instead, it
runs it as if there were no semantic errors. This class is for developer
actions only (i.e.  front-end driver options).

The new behaviour does not affect the return code from `flang-new -fc1`
when the input file is semantically incorrect. The return code is
inferred from the number of driver diagnostics generated in
`CompilerInstance::ExecuteAction` and this patch does not change that.
More specifically, the semantic errors are still reported and hence the
driver is able to correctly report that the compilation has failed (with
a non-zero return code).

This new base class is meant for debug actions only and
`DebugDumpAllAction` is updated to demonstrate the new behaviour. With
this change, `flang-new -fc1 -fdebug-dump-all` dumps the parse tree and
symbols for all input files, regardless of whether any semantic errors
were found.

This patch addresses https://bugs.llvm.org/show_bug.cgi?id=52097.

Differential Revision: https://reviews.llvm.org/D111308
2021-10-11 11:52:05 +00:00
Valentin Clement b0eef1eef0
[fir] Add the abstract result conversion pass
Add pass that convert abstract result to function argument.
This pass is needed before the conversion to LLVM IR.

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

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D111146

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-10-11 10:10:41 +02:00
Jean Perier 6eb7634f30
[fir] Add character conversion pass
Upstream the character conversion pass.
Translates entities of one CHARACTER KIND to another.
By default the translation is to naively zero-extend or truncate a code
point to fit the destination size.

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

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Valentin Clement <clementval@gmail.com>

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D111405
2021-10-10 20:20:09 +02:00
Rajan Walia 80c27abb2f
[fir] Add affine demotion pass
Add affine demotion pass.
Affine dialect's default lowering for loads and stores is different from
fir as it uses the `memref` type. The `memref` type is not compatible with
the Fortran runtime. Therefore, conversion of memory operations back to
`fir.load` and `fir.store` with `!fir.ref<?>` types is required.

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

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Rajan Walia <walrajan@gmail.com>
Co-authored-by: Sourabh Singh Tomar <SourabhSingh.Tomar@amd.com>
Co-authored-by: Valentin Clement <clementval@gmail.com>

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D111257
2021-10-08 14:03:27 +02:00
Jean Perier d70938bbad
[fir] Add affine promotion pass
Convert fir operations which satisfy affine constraints to the affine
dialect.

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

Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Rajan Walia <walrajan@gmail.com>
Co-authored-by: Sourabh Singh Tomar <SourabhSingh.Tomar@amd.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Valentin Clement <clementval@gmail.com>

Reviewed By: schweitz, awarzynski

Differential Revision: https://reviews.llvm.org/D111155
2021-10-08 11:47:23 +02:00
peter klausler 094b380c21 [flang] Catch mismatched parentheses in prescanner
Source lines with mismatched parentheses are hard cases for error
recovery in parsing, and the best error message (viz.,
"here's an unmatched parenthesis") can be emitted from the
prescanner.

Differential Revision: https://reviews.llvm.org/D111254#3046173
2021-10-06 14:00:15 -07:00
Valentin Clement fc66dbba1f
[fir] Add external name interop pass
Add the external name conversion pass needed for compiler
interoperability. This pass convert the Flang internal symbol name to
the common gfortran convention.

Clean up old passes without implementation in the Passes.ts file so
the project and fir-opt can build correctly.

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

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D111057
2021-10-05 20:33:41 +02:00
peter klausler cc1d13f997 [flang] Fold MAXLOC and MINLOC
Generalize the code that folds FINDLOC to also handle
folding for MAXLOC and MINLOC.

Differential Revision: https://reviews.llvm.org/D110951
2021-10-05 11:22:02 -07:00
Craig Rasmussen 9dd3965e96 [flang] Added tests for intrinsic function 'team_number()'
reviewers: klausler, PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D100897
2021-10-04 12:35:45 -07:00
Jean Perier dc4d94e620
[fir] add fir.array_modify op
fir.array_update is only handling intrinsic assignments.
They are two big differences with user defined assignments:
1. The LHS and RHS types may not match, this does not play well
   with fir.array_update that relies on both the merge and the
   updated element to have the same type.
2. user defined assignment has a call semantics, with potential
   side effects. So if a fir.array_update can hide a call, it traits
   would need to be updated.

Instead of hiding more semantic in the fir.array_update, introduce
a new fir.array_modify op that allows de-correlating indicating that
an array value element is modified, and how it is modified.
This allow the ArrayValueCopy pass to still perform copy elision
while not having to implement the call itself, and could in general
be used for all kind of assignments (e.g. character assignment).

Update the alias analysis to not rely on the merge arguments (since
fir.array_modify has none).
Instead, analyze what is done with the element address.
This implies adding the ability to follow the users of fir.array_modify,
as well as being able to go through fir.store that may be generated to
store the RHS value in order to pass it to a user define routine.
This is done by adding a ReachCollector class to gather all array
accesses.

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

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D110928

Co-authored-by: Valentin Clement <clementval@gmail.com>
2021-10-04 21:00:43 +02:00
peter klausler 0061e681a3 [flang] Better error recovery for missing THEN in ELSE IF
The THEN keyword in the "ELSE IF (test) THEN" statement is useless
syntactically, and to omit it is a common error (at least for me!)
that has poor error recovery.  This patch changes the parser to
cough up a simple "expected 'THEN'" and still recognize the rest of
the IF construct.

Differential Revision: https://reviews.llvm.org/D110952
2021-10-04 09:37:53 -07:00
Nimish Mishra 063c5bc31b [flang][OpenMP] Added OpenMP 5.0 specification based semantic checks for sections construct and test case for simd construct
According to OpenMP 5.0 spec document, the following semantic restrictions have been dealt with in this patch.

1. [sections construct] Orphaned section directives are prohibited. That is, the section directives must appear within the sections construct and must not be encountered elsewhere in the sections region.

 Semantic checks for the following are not necessary, since use of orphaned section construct (i.e. without an enclosing sections directive) throws parser errors and control flow never reaches the semantic checking phase. Added a test case for the same.

2. [sections construct] Must be a structured block

Added test case and made changes to branching logic

3. [simd construct] Must be a structured block / A program that branches in or out of a function with declare simd is non conforming

4. Fixed !$omp do's handling of unlabeled CYCLEs

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D108904
2021-10-02 08:40:53 +05:30
Eric Schweitz 2372249d86
[fir] Remove obsolete fir.negf and fir.modf ops
fir.negf op is replaced by mlir.negf and
fir.modf is just deleted.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D110932

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Valentin Clement <clementval@gmail.com>
2021-10-01 16:11:36 +02:00
Eric Schweitz 15ea26de24
[fir] Add fir.char_convert op
Add the fir-char_convert op.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D110818

Co-authored-by: Valentin Clement <clementval@gmail.com>
2021-10-01 14:40:11 +02:00
Peter Klausler 8256867508 [flang] Fold FINDLOC()
Fold the transformational intrinsic function FINDLOC() for
all combinations of optional arguments and data types.

Differential Revision: https://reviews.llvm.org/D110757
2021-09-30 12:08:10 -07:00
peter klausler 691814f9cc [flang] Fix test regression from SQRT folding
The algorithm used to fold SQRT has some holes that
led to test failures; debug and add more tests.

Differential Revision: https://reviews.llvm.org/D110744
2021-09-30 11:35:44 -07:00
Eric Schweitz c8f03a7fe8
[fir] Update fir.extract_value and fir.insert_value ops
Move coor operand from variadic values to ArrayAttr.
Update assembly format.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D110652

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Valentin Clement <clementval@gmail.com>
2021-09-30 10:23:51 +02:00
Eric Schweitz 34d6c1822e
[fir] Update fir.array_update, fir.array_fetch and fir.array_merge_store
Add typeparams to fir.array_update, fir.array_fetch and
fir.array_merge_store operations. Add optional slice operands to
fir.array_merge_store op.
Move verifiers to cpp file.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D110701

Co-authored-by: Valentin Clement <clementval@gmail.com>
2021-09-30 09:56:50 +02:00
peter klausler 52711fb8da [flang] Make builtin types more easily accessible; use them
Rearrange the contents of __builtin_* module files a little and
make sure that semantics implicitly USEs the module __Fortran_builtins
before processing each source file.  This ensures that the special derived
types for TEAM_TYPE, EVENT_TYPE, LOCK_TYPE, &c. exist in the symbol table
where they will be available for use in coarray intrinsic function
processing.

Update IsTeamType() to exploit access to the __Fortran_builtins
module rather than applying ad hoc name tests.  Move it and some
other utilities from Semantics/tools.* to Evaluate/tools.* to make
them available to intrinsics processing.

Add/correct the intrinsic table definitions for GET_TEAM, TEAM_NUMBER,
and THIS_IMAGE to exercise the built-in TEAM_TYPE as an argument and
as a result.

Add/correct/extend tests accordingly.

Differential Revision: https://reviews.llvm.org/D110356
2021-09-29 13:06:01 -07:00
Andrzej Warzynski 5c52753d9f [Flang] Fix failing plugin tests
The updated tests were originally added in
https://reviews.llvm.org/D109890 and are currently causing some
buildbots to fail.

This patch:
* adds missing items in the `REQUIRERS` list in tests
* adds `flangOmpReport` (the plugin library added in D109890) as a CMake
  dependency for tests (only when examples are enabled)

Differential Revision: https://reviews.llvm.org/D110682
2021-09-29 09:27:11 +00:00
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
Diana Picus 37089bae29 Reland "[flang] GET_COMMAND_ARGUMENT runtime implementation"
Recommit https://reviews.llvm.org/D109813 and
https://reviews.llvm.org/D109814.

This implements the second and final entry point for GET_COMMAND_ARGUMENT,
handling the VALUE, STATUS and ERRMSG parameters.

It has a small fix in that we're now using memcpy instead of strncpy
(which was a bad idea to begin with, since we're not actually interested
in a string copy).
2021-09-28 12:34:07 +00:00
Diana Picus 6359a4cdbf Revert "[flang] GET_COMMAND_ARGUMENT(VALUE) runtime implementation"
This reverts commit 0446f1299f and
df6302311f.

There's a warning on flang-aarch64-latest-gcc related to strncpy using
the result of strlen as a bound. I'll recommit with a fix.
2021-09-28 12:07:27 +00:00
Eric Schweitz 5b5ef2e265
[fir] Add fir.save_result op
Add the fir.save_result operation. It is use to save an
array, box, or record function result SSA-value to a memory location

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D110407

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Valentin Clement <clementval@gmail.com>
2021-09-28 11:58:42 +02:00
V Donaldson bd2623b9c2
[fir] Update fir.insert_on_range op
Update the fir.insert_on_range operation. Add a better description,
builder and verifier.

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

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D110389

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Valentin Clement <clementval@gmail.com>
2021-09-28 11:03:28 +02:00
Diana Picus df6302311f [flang] GET_COMMAND_ARGUMENT(VALUE) runtime implementation
Partial implementation for the second entry point for
GET_COMMAND_ARGUMENT. It handles the VALUE and STATUS arguments, and
doesn't touch ERRMSG.

Differential Revision: https://reviews.llvm.org/D109813
2021-09-28 08:32:19 +00:00
Diana Picus af63d1791b [flang] GET_COMMAND_ARGUMENT(LENGTH) runtime implementation
Implement the ArgumentLength entry point of GET_COMMAND_ARGUMENT. Also
introduce a fixture for the tests.

Note that this also changes the interface for ArgumentLength from
returning a 4-byte integer to returning an 8-byte integer.

Differential Revision: https://reviews.llvm.org/D109227
2021-09-28 08:32:19 +00:00
peter klausler 9eab0da183 [flang] Catch branching into FORALL/WHERE constructs
Enforce constraints C1034 & C1038, which disallow the use
of otherwise valid statements as branch targets when they
appear in FORALL &/or WHERE constructs.  (And make the
diagnostic message somewhat more user-friendly.)

Differential Revision: https://reviews.llvm.org/D109936
2021-09-27 10:51:44 -07:00
peter klausler 1c2e5fd66e [flang] Enforce constraint: defined ass't in WHERE must be elemental
A defined assignment subroutine invoked in the context of a WHERE
statement or construct must necessarily be elemental (C1032).

Differential Revision: https://reviews.llvm.org/D109932
2021-09-27 10:12:53 -07:00
peter klausler f6ecea1a35 [flang] Represent (parentheses around derived types)
The strongly typed expression representation classes supported
a representation of parentheses only around intrinsic types
with specific kinds.  Parentheses around derived type variables
must also be preserved so that expressions may be distinguished
from variables; this distinction matters for actual arguments &
construct associations.

Differential Revision: https://reviews.llvm.org/D110355
2021-09-23 13:03:13 -07:00
Valentin Clement 2155aa79d7
[fir][NFC] Remove fir.cmpf replaced by mlir.cmpf
fir.cmpf op is not necessary anymore as it is replaced by mlir.cmpf.
This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D110327

Co-authored-by: schweitzpgi
Co-authored-by: jeanPerier
2021-09-23 19:05:57 +02:00
peter klausler 57705df2de [flang] Catch error: base of DATA statement object can't be a pointer
A pointer with subscripts, substring indices, or components cannot
be initialized by a DATA statement (although of course a whole pointer
can be so).  Catch the missing cases.

Differential Revision: https://reviews.llvm.org/D109931
2021-09-22 14:41:48 -07:00
peter klausler bcb2591b6c [flang] More checking of NULL pointer actual arguments
Catch additional missing error cases for typed and untyped
NULL actual arguments to non-intrinsic procedures in cases
of explicit and implicit interfaces.

Differential Revision: https://reviews.llvm.org/D110003
2021-09-17 15:35:29 -07:00
peter klausler 338f21a4bd [flang] Enforce specification function rules on callee, not call
A function can't be a specification function if it has a dummy procedure
argument, even if it's optional and unused.  So don't check the reference
for actual procedure arguments, but rather the characteristics of the
function.

Differential Revision: https://reviews.llvm.org/D109935
2021-09-17 10:59:54 -07:00
peter klausler f6ddfac401 [flang] Enforce fixed form rules about END continuation
From subclause 6.3.3.5: a program unit END statement cannot be
continued in fixed form, and other statements cannot have initial
lines that look like program unit END statements.  I think this
is to avoid violating assumptions that are important to legacy
compilers' statement classification routines.

Differential Revision: https://reviews.llvm.org/D109933
2021-09-17 10:59:17 -07:00
peter klausler 9245f35580 [flang] Validate SIZE(x,DIM=n) dimension for assumed-size array x
Catch invalid attempts to extract the unknowable extent of the last
dimension of an assumed-size array dummy argument, and clean up
problems with assumed-rank arguments in similar circumstances
exposed by testing the fix.

Differential Revision: https://reviews.llvm.org/D109918
2021-09-17 10:14:18 -07:00
peter klausler 20afd38651 [flang] Upgrade warning to error in case of PURE procedure
A procedure actual argument to a PURE procedure should be required
to have an explicit interface.  Implicit-interface actual arguments
to non-PURE procedures remain a warning.

Differential Revision: https://reviews.llvm.org/D109926
2021-09-17 10:13:35 -07:00
peter klausler 7ff920826c [flang] Catch errors with intrinsic array inquiry functions
The intrinsic inquiry functions SIZE and UBOUND -- but not LBOUND --
require a DIM= argument if their first argument is an assumed-size
array.  The intrinsic SHAPE must not be used with an assumed-size
array.

Differential Revision: https://reviews.llvm.org/D109912
2021-09-17 09:24:52 -07:00
peter klausler 1894250291 [flang] Revamp C1502 checking of END INTERFACE [generic-spec]
Validation of the optional generic-spec on an END INTERFACE statement
was missing many possible error cases; reimplement it.

Differential Revision: https://reviews.llvm.org/D109910
2021-09-17 08:13:10 -07:00
PeixinQiao 6fb01a9470 [flang][OpenMP] Add semantic checks for ordered construct
This patch implements the following semantic checks according to
OpenMP Version 5.1 Ordered construct restriction:

```
At most one threads clause can appear on an ordered construct; At most
one simd clause can appear on an ordered construct; At most one
depend(source) clause can appear on an ordered construct; Either
depend(sink:vec) clauses or depend(source) clauses may appear on an
ordered construct, but not both.
```

This patch also implements the following semantic checks according to
the syntax and descriptions in OpenMP Version 5.1 Ordered construct:

```
The dependence types of sink or source are only allowed on an ordered
construct. The depend(*) clauses are not allowed when ordered construct
is a block construct with an ordered region. The threads or simd clauses
are not allowed when the ordered construct is a standalone construct
with no ordered region.
```

Co-authored-by: Sameeran Joshi <sameeranjayant.joshi@amd.com>

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D108512
2021-09-17 21:53:07 +08:00
Craig Rasmussen ed921282e5 [flang] Make 'this_image()' an intrinsic function
Added 'this_image()' to the list of functions that are evaluated as intrinsic.
Added IsCoarray functions to determine if an expression is a coarray (corank > 1).

Added save attribute to coarray variables in test file, this_image.f90.

reviewers: klausler, PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D108059
2021-09-16 22:17:32 -07:00
peter klausler 26aff847d8 [flang] Fold COUNT()
Complete folding of the intrinsic reduction function COUNT() for all
cases, including partial reductions with DIM= arguments.

Differential Revision: https://reviews.llvm.org/D109911
2021-09-16 17:09:23 -07:00
peter klausler 19afc495dc [flang] Enforce array conformance in actual arguments to ELEMENTALs
When the shapes of actual arguments to ELEMENTAL procedures are
sufficiently well known during semantics, require them to conform.

Differential Revision: https://reviews.llvm.org/D109909
2021-09-16 16:17:36 -07:00
peter klausler d9195d6603 [flang] More precise checks for NULL() operands
Improve checking for NULL() and NULL(MOLD=) when used as
variables and expressions outside the few contexts where
a disassociated pointer can be valid.  There were both
inappropriate errors and missing checks.

Differential Revision: https://reviews.llvm.org/D109905
2021-09-16 15:52:45 -07:00
Mehdi Amini 0dc461441e Revert "[flang] Make 'this_image()' an intrinsic function"
This reverts commit 81f8ad1769.
This seems to break the shared libs build
(linaro-flang-aarch64-sharedlibs bot) with:

  undefined reference to `Fortran::semantics::IsCoarray(Fortran::semantics::Symbol const&)

(from tools/flang/lib/Evaluate/CMakeFiles/obj.FortranEvaluate.dir/tools.cpp.o)

When linking lib/libFortranEvaluate.so.14git
2021-09-15 03:28:34 +00:00
Craig Rasmussen 81f8ad1769 [flang] Make 'this_image()' an intrinsic function
Added 'this_image()' to the list of functions that are evaluated as intrinsic.
Added IsCoarray functions to determine if an expression is a coarray (corank > 1).

Added save attribute to coarray variables in test file, this_image.f90.

reviewers: klausler, PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D108059
2021-09-14 16:40:08 -07:00
PeixinQiao 2685212184 [flang][OpenMP] Add semantic check for threadprivate directive
This patch implements the following check for THREADPRIVATE construct:
```
A variable that is part of another variable (as an array, structure
element or type parameter inquiry) cannot appear in a threadprivate
directive.
```

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D109685
2021-09-15 00:22:03 +08:00
Arnamoy Bhattacharyya b9a8f34d47 [flang][OpenMP] Add parsing support for nontemporal clause.
This patch adds parsing support for the nontemporal clause.  Also adds a couple of test cases.

Reviewed By: clementval

Differential Revision: https://reviews.llvm.org/D106896
2021-09-13 15:25:47 -04:00
Nico Weber 648feabc65 [clang] Make the driver not diagnose errors on nonexistent linker inputs
When nonexistent linker inputs are passed to the driver, the linker
now errors out, instead of the compiler. If the linker does not run,
clang now emits a "warning: linker input unused" instead of an error
for nonexistent files.

The motivation for this change is that I noticed that
`clang-cl /winsysroot sysroot main.cc ole32.lib` emitted a
"ole32.lib not found" error, even though the linker finds it just fine when
I run `clang-cl /winsysroot sysroot main.cc /link ole32.lib`.

The same problem occurs if running `clang-cl main.cc ole32.lib` in a
non-MSVC shell.

The problem is that DiagnoseInputExistence() only looked for libs in %LIB%,
but MSVCToolChain uses much more involved techniques.

For this particular problem, we could make DiagnoseInputExistence() ask
the toolchain to see if it can find a .lib file, but in general the
driver can't know what the linker will do to find files, so it shouldn't
try. For example, if we implement PR24616, lld-link will look in the
registry to determine a good default for %LIB% if it isn't set.

This is less or a problem for the gcc driver, since .a paths there are
either passed via -l flags (which honor -L), or via a qualified path
(that doesn't honor -L) -- but for example ld.lld's --chroot flag
can also trigger this problem. Without this patch,
`clang -fuse-ld=lld -Wl,--chroot,some/dir /file.o` will complain that
`/file.o` doesn't exist, even though
`clang -fuse-ld=lld -Wl,--chroot,some/dir -Wl,/file.o` succeeds just fine.

This implements rnk's suggestion on the old bug PR27234.

Differential Revision: https://reviews.llvm.org/D109624
2021-09-13 08:57:38 -04:00
Jean Perier d892d7323e [flang] Fix common block size extension mistake in D109156
https://reviews.llvm.org/D109156 did not properly update the case where
the equivalence symbol appearing in the common statement is the
"base symbol of an equivalence group" (this was the only case that previously
worked ok, and the patch broke it).

Fix this and add a test that actually uses this code path.

Differential Revision: https://reviews.llvm.org/D109439
2021-09-09 09:12:12 +02:00
peter klausler 43a263f570 [flang] Implement semantic checks for ELEMENTAL subprograms
Adds missing semantic checks for ELEMENTAL functions and subroutines,
their dummy arguments, and their results from F'2018 15.8.1 C15100-15102.

Differential Revision: https://reviews.llvm.org/D109380
2021-09-07 14:37:23 -07:00
peter klausler c9e9635ffe [flang] evaluate: Fold SQRT, HYPOT, & CABS
Implement IEEE Real::SQRT() operation, then use it to
also implement Real::HYPOT(), which can then be used directly
to implement Complex::ABS().

Differential Revision: https://reviews.llvm.org/D109250
2021-09-07 10:33:11 -07:00
Ivan Zhechev dc453dcf76 [Flang] Port test_modfile.sh to Python
To enable Flang testing on Windows, shell scripts have
to be ported to Python. The following changes have been made:
"test_modfile.sh" has been ported to Python, and
the relevant tests relying on it.

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D107956
2021-09-06 13:57:36 +00:00
Ivan Zhechev 93c3e765ac [Flang] Port test_folding.sh to Python
To enable Flang testing on Windows,
shells scripts have to be ported to Python.
The following changes have been made:
Ported `test_folding.sh` to Python;
Additional changes to the tests themselves
to use the new script.

LIBPGMATH support for testing
not available at this point.

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D108217
2021-09-06 13:54:56 +00:00
Ivan Zhechev 6c1ac141d3 [Flang] Ported test_errors.sh to Python
To enable Flang testing on Windows, shell scripts have to be ported to Python. In this patch the "test_errors.sh" script is ported to python ("test_errors.py"). The RUN line of existing tests was changed to make use of the python script.

Used python regex in place of awk/sed.

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D107575
2021-09-06 08:19:42 +00:00
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
Jean Perier 49af2a6275 [mlir][flang] Do not prevent integer types from being parsed as MLIR keywords
DialectAsmParser::parseKeyword is rejecting `'i' digit+` while it is
a valid identifier according to mlir/docs/LangRef.md.

Integer types actually used to be TOK_KEYWORD a while back before the
change: 6af866c58d.

This patch Modifies `isCurrentTokenAKeyword` to return true for tokens that
match integer types too.

The motivation for this change is the parsing of `!fir.type<{` `component-name: component-type,`+ `}>`
type in FIR that represent Fortran derived types. The component-names are
parsed as keywords, and can very well be i32 or any ixxx (which are
valid Fortran derived type component names).

The Quant dialect type parser had to be modified since it relied on `iw` not
being parsed as keywords.

Differential Revision: https://reviews.llvm.org/D108913
2021-09-03 08:20:49 +02:00