Follow up of https://reviews.llvm.org/D121488. Ensure lower bounds
are `1` when the related dimension extent is zero. Note that lower
bounds from descriptors are now guaranteed to fulfill this property
after the runtime/codegen patches.
Also fixes explicit shape array extent lowering when instantiating
variables to deal with negative extent cases (issue found while testing
LBOUND edge case). This notably caused allocation crashes when dealing
with automatic arrays with reversed bounds or negative size
specification expression. The standard specifies that the extent of such
arrays is zero. This change has some ripple effect in the current lit
tests.
Add move two helpers as part of this change:
- Add a helper to tell if a fir::ExtendedValue describes an assumed size
array (last dimension extent is unknown to the compiler, both at compile
time and runtime).
- Move and share getIntIfConstant from Character.cpp so that it can be
used elsewhere (NFC).
Differential Revision: https://reviews.llvm.org/D122467
In FIR, we want to wrap function pointers in a special box known as a
boxproc value. Fortran has a limited form of dynamic scoping
[https://tinyurl.com/2p8v2hw7] between "host procedures" and "internal
procedures". There are a number of implementations possible.
Boxproc typed values abstract away the implementation details of when a
function pointer can be passed directly (as a raw address) and when a
function pointer has to account for the presence of a dynamic scope.
When lowering Fortran syntax to FIR, all function pointers are emboxed
as boxproc values.
When creating LLVM IR, we must strip away the abstraction and produce
low-level LLVM "assembly" code. This patch implements that
transformation as converting the boxproc values to either raw function
pointers or executable trampolines on the stack as needed. The
trampoline then captures the dynamic scope context within an executable
thunk that can be passed instead of the function's raw address.
Some extra handling is required for Fortran functions that return a
character value to deal with LEN values here.
Some of the code in Bridge.cpp and ConvertExpr.cpp and be re-arranged to
faciliate the upstreaming effort.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: jeanPerier, PeteSteinfeld
Differential Revision: https://reviews.llvm.org/D122223
Co-authored-by: mleair <leairmark@gmail.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Kiran Chandramohan <kiran.chandramohan@arm.com>
This patch adds lowering for the following character related intrinsics:
- `len`
- `len_trim`
- `lge`, `lgt`, `lle` and `llt`
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: PeteSteinfeld
Differential Revision: https://reviews.llvm.org/D121703
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
This patch update the array value copy pass to support fir-array_amend
and fir.array_access.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: PeteSteinfeld, schweitz
Differential Revision: https://reviews.llvm.org/D121300
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
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
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>
This patch enables the lowering of various allocatable assignements
for character type and numeric types.
This patch is part of the upstreaming effort from fir-dev branch.
Depends on D120819
Reviewed By: PeteSteinfeld, schweitz
Differential Revision: https://reviews.llvm.org/D120820
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
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>
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>
Add some helpers to get the base type and element type of
fir::ExtendedValue and to test if a fir::ExtendedValue is
a derived type with length parameters.
Add a new helper factory::genZeroValue to generate zero scalar value for
all the numerical types and false for logicals.
These helpers are used only in lowering for now, so add unit tests.
Differential Revision: https://reviews.llvm.org/D118795
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>
There have been a few API pieces remaining to allow for a smooth transition for
downstream users, but these have been up for a few months now. After this only
the C API will have reference to "Identifier", but those will be reworked in a followup.
The main updates are:
* Identifier -> StringAttr
* StringAttr::get requires the context as the first parameter
- i.e. `Identifier::get("...", ctx)` -> `StringAttr::get(ctx, "...")`
Reviewed By: mehdi_amini
Differential Revision: https://reviews.llvm.org/D116626
- Join indirection and rank into a single value `flags`
- Make the struct a plain C struct.
Reviewed By: schweitz
Differential Revision: https://reviews.llvm.org/D115464
This patch introduces a bunch of builder functions
to create function calls to runtime ragged arrays functions.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D114535
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
This patch upstream the array value copy pass.
Transform the set of array value primitives to a memory-based array
representation.
The Ops `array_load`, `array_store`, `array_fetch`, and `array_update` are
used to manage abstract aggregate array values. A simple analysis is done
to determine if there are potential dependences between these operations.
If not, these array operations can be lowered to work directly on the memory
representation. If there is a potential conflict, a temporary is created
along with appropriate copy-in/copy-out operations. Here, a more refined
analysis might be deployed, such as using the affine framework.
This pass is required before code gen to the LLVM IR dialect.
This patch is part of the upstreaming effort from fir-dev branch. The
pass is bringing quite a lot of file with it.
Reviewed By: kiranchandramohan, schweitz
Differential Revision: https://reviews.llvm.org/D111337
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Replace the global option `nameLengthHashSize` with a constexpr
with the same name. The option was not used in fir-dev so switching
to a constexpr is fine.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D114630
Use the factory class in the FIRBuilder.
Add unit tests for the factory class function and the convert function
of the Complex class.
Reviewed By: clementval, rovka
Differential Revision: https://reviews.llvm.org/D114125
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
This patch is extracted from D111337 to make is smaller.
It introduce utility functions to the FIRBuilder and add the MutableBox
files.
- genShape
- readCharLen
- getExtents
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D112207
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
This patch is extracted from D111337. It introduce the
CharacterExprHelper that helps dealing with character in FIR.
Reviewed By: schweitz, awarzynski
Differential Revision: https://reviews.llvm.org/D112140
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
This patch is extracted from D111337. It introduce the
CharacterExprHelper that helps dealing with character in FIR.
Reviewed By: schweitz, awarzynski
Differential Revision: https://reviews.llvm.org/D112140
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
This patch is extracted from D111337. It introduce the
CharacterExprHelper that helps dealing with character in FIR.
Reviewed By: schweitz, awarzynski
Differential Revision: https://reviews.llvm.org/D112140
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
Extract part of D111337 in order to mke it smaller
and easier to review. This patch add some utility
functions to the FIRBuilder.
Add the following utility functions:
- getCharacterLengthType
- createStringLiteral
- locationToFilename
- characterWithDynamicLen
- sequenceWithNonConstantShape
- hasDynamicSize
These bring up the BoxValue implementation together with it.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: AlexisPerry
Differential Revision: https://reviews.llvm.org/D112074
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Extract some code from the big ptach D111337. This patch
contains some utility functions from the FIRBuidler.
List of utility functions added:
- getRegion
- getModule
- getKindMap
- getRefType
- getVarLenSeqTy
- getRealType
- createNullConstant
- createRealConstant
- createRealZeroConstant
- createGlobal
- createGlobalConstant
- createStringLitOp
- getNamedFunction
- getNamedGlobal
- createFunction
- addNamedFunction
- createBool
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D112057
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
In order to reduct the size of D111337. The IfBuilder and the two
utility functions genIsNotNull and genIsNull have been extracted in
a separate patch with dedicated unittests.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: Leporacanthicus
Differential Revision: https://reviews.llvm.org/D111796
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Add the DoLoopHelper. Some helpers functions
to create fir.do_loop operations.
This code was part of D111337 and was extracted in order to
make the patch easier to review.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D111713
Co-authored-by: Valentin Clement <clementval@gmail.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
