Commit Graph

2832 Commits

Author SHA1 Message Date
Valentin Clement ad3bb7c7da
[flang] Simplify RaggedArrayHeader and make it plain C struct
- 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
2021-12-09 22:28:06 +01:00
Valentin Clement 70638d997c
[fir] Keep runtime function name in comment
Some of the function name in the comment didn't match
their actual name in the runtime. This patch fixes that.

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D115076
2021-12-09 18:29:41 +01:00
Valentin Clement de467afe18
[fir] Add fir ragged array builder
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>
2021-12-08 17:28:43 +01:00
AlexisPerry c2acd45393 Convert fir.allocmem and fir.freemem operations to calls to malloc and free, respectively
This patch is part of the upstreaming effort from the fir-dev branch.

Address review comments
- move CHECK blocks to after the mlir code in the test file
- fix style with respect to anonymous namespaces: only include class definitions in the namespace and make functions static and outside the namespace
- fix a few nits
- remove TODO in favor of notifyMatchFailure
- removed unnecessary CHECK line from convert-to-llvm.fir
- rebase on main - add TODO back in
- get successfull test of TODO in AllocMemOp converion of derived type with LEN params
- clearer comments and reduced use of auto
- move defintion of computeDerivedTypeSize to fix build error

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

Reviewed By: awarzynski, clementval, kiranchandramohan, schweitz

Differential Revision: https://reviews.llvm.org/D114104
2021-12-07 15:59:10 -07:00
Kiran Chandramohan fa51755542 [Flang] Upstream conversion of the XRebox Op
The XRebox Op is formed by the codegen rewrite which makes it easier to
convert the operation to LLVM. The XRebox op includes the information
from the rebox op and the associated slice, shift, and shape ops.

During the conversion process a new descriptor is created for reboxing.

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Val Donaldson <vdonaldson@nvidia.com>

Reviewed By: clementval

Differential Revision: https://reviews.llvm.org/D114709
2021-12-07 22:22:39 +00:00
Valentin Clement 5d27abe629
[fir] Add fircg.ext_array_coor conversion
This patch adds the conversion pattern for the fircg.ext_array_coor
operation. It applies the address arithmetic on a dynamically shaped, shifted
and/or sliced array.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D113968

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-12-06 15:52:45 +01:00
Valentin Clement d59a0f58f4
[fir] Add fir character builder
This patch adds the FIR builder to generate the numeric intrinsic
runtime call.

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

Reviewed By: rovka

Differential Revision: https://reviews.llvm.org/D114900

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
2021-12-03 14:58:17 +01:00
Valentin Clement c32421c925
[fir] Add fir derived type runtime builder
This patch adds the builder to generate derived type runtime API calls.

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

Reviewed By: rovka

Differential Revision: https://reviews.llvm.org/D114472

Co-authored-by: Peter Klausler <pklausler@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-12-03 14:51:59 +01:00
Diana Picus 3fd250d258 [fir] TargetRewrite: Rewrite fir.address_of(func)
Rewrite AddrOfOp if taking the address of a function.

Differential Revision: https://reviews.llvm.org/D114925

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-12-03 10:56:24 +00:00
Valentin Clement 1f55103263
[fir] Add fircg.ext_embox conversion
Convert a fircg.ext_embox operation to LLVM IR dialect.
A fircg.ext_embox is converted to a sequence of operation that
create, allocate if needed, and populate a descriptor.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D114148

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-12-03 11:45:36 +01:00
Kiran Chandramohan 7ce8c6fcf1 [Flang] Replace notifyMatchFailure with TODO hard failures
For unimplemented patterns we revert to using TODO hard failures instead of
notifyMatchFailure.

For fir.select_type revert to using mlir::emiterror.
For the fir.embox TODO on a type with len params we cannot add a test since the type cannot be converted to llvm.

Adding negative tests using not and checking for the error message.
TODO exits with an error in a build without assertion but aborts in a
build with assertions. Abort requires using not with the --crash
option. The two different usages of not is handled by using a custom
command %not_todo_cmd which is converted to not or not --crash
depending on the presence or absence of assertions. Using llvm-config
to check the presence of assertions.

Reviewed By: clementval, awarzynski

Differential Revision: https://reviews.llvm.org/D114371
2021-12-02 10:25:02 +00:00
Valentin Clement 529d0942da
[fir] Add fir numeric intrinsic runtime call builder
This patch adds the FIR builder to generate the numeric intrinsic
runtime call.

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

Reviewed By: rovka

Differential Revision: https://reviews.llvm.org/D114477

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
2021-12-02 10:22:26 +01:00
Peter Klausler 44bc97c834 [flang] Adjust names in Semantics that imply too much (NFC)
Some kinds of Fortran arrays are declared with the same syntax,
and it is impossible to tell from a shape (:, :) or (*) whether
the object is assumed shape, deferred shape, assumed size, implied
shape, or whatever without recourse to more information about the
symbol in question.  This patch softens the names of some predicate
functions (IsAssumedShape to CanBeAssumedShape) and makes others
more reflective of the syntax they represent (isAssumed to isStar)
in an attempt to encourage coders to seek and find definitive
predicate functions whose names deliver what they seem to mean.

Address TODO comments in IsSimplyContiguous() by using the
updated IsAssumedShape() predicate.

Differential Revision: https://reviews.llvm.org/D114829
2021-12-01 11:19:19 -08:00
Kiran Chandramohan 003c9c7457 Revert "[Flang] Replace notifyMatchFailure with TODO hard failures"
This reverts commit 46fd7fd7b3.
2021-12-01 14:23:48 +00:00
Kiran Chandramohan 46fd7fd7b3 [Flang] Replace notifyMatchFailure with TODO hard failures
For unimplemented patterns we revert to using TODO hard failures instead of
notifyMatchFailure.

For fir.select_type revert to using mlir::emiterror.
For the fir.embox TODO on a type with len params we cannot add a test since the type cannot be converted to llvm.

Adding negative tests using not and checking for the error message.
TODO exits with an error in a build without assertion but aborts in a
build with assertions. Abort requires using not with the --crash
option. The two different usages of not is handled by using a custom
command %not_todo_cmd which is converted to not or not --crash
depending on the presence or absence of assertions. Using llvm-config
to check the presence of assertions.

Reviewed By: clementval, awarzynski

Differential Revision: https://reviews.llvm.org/D114371
2021-12-01 08:19:44 +00:00
Valentin Clement f6ae8e8cc7
[fir] Add fir reduction builder
This patch introduces a bunch of builder functions
to create function calls to runtime reduction functions.

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

This patch failed previously because a macro was missing.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D114460

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
2021-12-01 09:01:12 +01:00
Peter Klausler 1ee6f7add1 [flang] Rearrange prototype & code placement of IsCoarray()
A quick fix last week to the shared library build caused
the predicate IsCoarray(const Symbol &) to be moved from
Semantics to Evaluate.  This patch completes that move in
a way that properly combines the existing IsCoarray() tests
for expressions and other object with the test for a symbol.

Differential Revision: https://reviews.llvm.org/D114806
2021-11-30 15:26:34 -08:00
Peter Klausler cbd445e4a3 [flang] Re-fold bounds expressions in DATA implied DO loops
To accommodate triangular implied DO loops in DATA statements, in which
the bounds of nested implied DO loops might depend on the values of the
indices of outer implied DO loops in the same DATA statement set, it
is necessary to run them through constant folding each time they are
encountered.

Differential Revision: https://reviews.llvm.org/D114754
2021-11-30 13:28:31 -08:00
Peter Klausler 196204c72c [flang] Fix usage & catch errors for MAX/MIN with keyword= arguments
Max(), MIN(), and their specific variants are defined with an unlimited
number of dummy arguments named A1=, A2=, &c. whose names are almost never
used in practice but should be allowed for and properly checked for the
usual errors when they do appear.  The intrinsic table's entries otherwise
have fixed numbers of dummy argument definitions, so add some special
case handling in a few spots for MAX/MIN/&c. checking and procedure
characteristics construction.

Differential Revision: https://reviews.llvm.org/D114750
2021-11-30 12:53:47 -08:00
Peter Klausler 8bc593cbbb [flang] Address TODO from previous changes to IsSaved()
An earlier fix to evaluate::IsSaved() needed to preserve its
treatment of named constants in modules and main programs -- i.e.
they would appear to be saved -- until a correction was added
to the lowering code.  This TODO can now be resolved.

Differential Revision: https://reviews.llvm.org/D114756
2021-11-30 10:39:51 -08:00
Valentin Clement 3cc21ee6b9
Revert "[fir] Add fir reduction builder"
This reverts commit cf3422d3df.

This fails on some buildbots
2021-11-30 17:15:42 +01:00
Valentin Clement eb97c89cac
[fir] Remove unused fct recordTypeCanBeMemCopied
Remove unused fct added with 47f759309e
2021-11-30 17:02:25 +01:00
Valentin Clement cf3422d3df
[fir] Add fir reduction builder
This patch introduces a bunch of builder functions
to create function calls to runtime reduction functions.

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

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>

Differential Revision: https://reviews.llvm.org/D114460

Reviewed By: awarzynski
2021-11-30 15:52:30 +01:00
Valentin Clement 47f759309e
[fir] Add array value copy pass
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>
2021-11-30 13:51:08 +01:00
Valentin Clement 1cc3b135aa
[fir] Get rid of the global option in FIRBuilder
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
2021-11-29 17:08:09 +01:00
Valentin Clement 2e7202b008
[fir] Add data flow optimization pass
Add pass to perform store/load forwarding and potentially removing dead
stores.

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

Reviewed By: kiranchandramohan, schweitz, mehdi_amini, awarzynski

Differential Revision: https://reviews.llvm.org/D111288
2021-11-29 11:00:09 +01:00
Valentin Clement 51e2c8c9bf
[fir] Add assignment runtime API builder
This patch adds the builder that generate assignment runtime API calls.

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

Reviewed By: rovka, awarzynski

Differential Revision: https://reviews.llvm.org/D114475

Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-29 10:23:06 +01:00
Valentin Clement 18452d1f12
[fir] Add fir transformational intrinsic builder
This patch adds the builder to generate transformational
intrinsic runtime API calls.

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

Reviewed By: rovka

Differential Revision: https://reviews.llvm.org/D114470

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
Co-authored-by: Kiran Chandramohan <kiran.chandramohan@arm.com>
Co-authored-by: Peter Steinfeld <psteinfeld@nvidia.com>
2021-11-29 10:09:36 +01:00
Jean Perier 9d1938fd14 [flang] Return true in IsSymplyContiguous for allocatables
The current code was relying on the fact that allocatables are deferred
shape and that isAssumedShape() should therefore return true for them.

This is not true, because the current parsing/semantic analysis always
builds a semantics::ArraySpec for `x(:)` that returns true to both
isDeferredShape()/isAssumedShape(), whether x is allocatable/pointer or
not.

It proved tricky to change this behavior, so this is a simple fix for
IsSymplyContiguous where it currently matters, but we most likely want
to investigate more and fix the isDeferredShape()/isAssumedShape() in
a second time.

Differential Revision: https://reviews.llvm.org/D114599
2021-11-29 08:28:26 +01:00
Mehdi Amini 8ec0f22184 Update fir.insert_on_range syntax to make the range more explicit (NFC)
Also replace ArrayAttr with IndexElementsAttr to model subscript dimensions.
An array of attribute is a sparse inefficient storage, with an API that
requires to unpack/repack integers at every call site.
Instead we can store dense array of integer as IndexElementsAttr.

Reviewed By: clementval, kiranchandramohan

Differential Revision: https://reviews.llvm.org/D112899
2021-11-24 02:06:17 +00:00
Diana Picus cdc476ab2f [fir] Set !fir.len_param_index conversion to unimplemented
This patch is part of the upstreaming effort from fir-dev.

The conversion of len_param_index in fir-dev is incomplete, so for now
we're marking this as unimplemented until we can settle on a design for
the runtime support of LEN parameters.

Differential Revision: https://reviews.llvm.org/D114241

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-23 12:14:28 +00:00
Peter Klausler bb0d8e4bd9 [flang] Correct the argument keyword for AIMAG(Z=...)
It was X= in the intrinsics table.

Differential Revision: https://reviews.llvm.org/D114296
2021-11-22 16:13:21 -08:00
Peter Klausler 42bfd059bf [flang] Move IsCoarray() to fix shared library build
The predicate IsCoarray() needs to be in libFortranEvaluate so that
IsSaved() can call it without breaking the shared library build.

Pushed without pre-commit review as I'm moving code around and
the fix to the shared build is confirmed.
2021-11-22 12:46:15 -08:00
Peter Klausler 996ef895cd [flang] Add -fno-automatic, refine IsSaved()
This legacy option (available in other Fortran compilers with various
spellings) implies the SAVE attribute for local variables on subprograms
that are not explicitly RECURSIVE.  The SAVE attribute essentially implies
static rather than stack storage.  This was the default setting in Fortran
until surprisingly recently, so explicit SAVE statements & attributes
could be and often were omitted from older codes.  Note that initialized
objects already have an implied SAVE attribute, and objects in COMMON
effectively do too, as data overlays are extinct; and since objects that are
expected to survive from one invocation of a procedure to the next in static
storage should probably be explicit initialized in the first place, so the
use cases for this option are somewhat rare, and all of them could be
handled with explicit SAVE statements or attributes.

This implicit SAVE attribute must not apply to automatic (in the Fortran sense)
local objects, whose sizes cannot be known at compilation time.  To get the
semantics of IsSaved() right, the IsAutomatic() predicate was moved into
Evaluate/tools.cpp to allow for dynamic linking of the compiler.  The
redundant predicate IsAutomatic() was noticed, removed, and its uses replaced.

GNU Fortran's spelling of the option (-fno-automatic) was added to
the clang-based driver and used for basic sanity testing.

Differential Revision: https://reviews.llvm.org/D114209
2021-11-22 10:06:38 -08:00
Valentin Clement b8207db700
[fir] Add fir.no_reassoc conversion
Currently `fir.no_reassoc` is just removed in the conversion.

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

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D114154

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-19 11:38:24 +01:00
Diana Picus ca3795541f [flang] Fix printing of constc and parsing of #fir.real
Printing and parsing of constc didn't agree with each other. This patch
treats the parsing of constc as the final word and fixes the printing
accordingly.

More concretely, this patch prints the RealAttrs that make up the
ConstcOp directly instead of casting to mlir::FloatAttr (which blows
up). It also fixes parseFirRealAttr to invoke APFloat's method for
getting the size of a floating point type instead of computing it as
8 * kind (which blows up for BFloat, with kind == 3 and size == 16).

Kudos to Kiran Chandramohan <kiran.chandramohan@arm.com> for noticing
that we were missing tests for constc in fir-ops.fir.

Differential Revision: https://reviews.llvm.org/D114081
2021-11-19 09:28:02 +00:00
Kiran Chandramohan a1f9bd32c5 [Flang] Add a factory class for creating Complex Ops
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>
2021-11-18 16:55:35 +00:00
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 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
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
River Riddle 0c7890c844 [mlir] Convert NamedAttribute to be a class
NamedAttribute is currently represented as an std::pair, but this
creates an extremely clunky .first/.second API. This commit
converts it to a class, with better accessors (getName/getValue)
and also opens the door for more convenient API in the future.

Differential Revision: https://reviews.llvm.org/D113956
2021-11-18 05:39:29 +00:00
Peter Klausler 78d60094c7 [flang] Deal with negative character lengths in semantics
Fortran defines LEN(X) = 0 after CHARACTER(LEN=-1)::X so
apply MAX(0, ...) to character length expressions.

Differential Revision: https://reviews.llvm.org/D114030
2021-11-17 09:49:15 -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
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 37c7211f11
[fir] Remove extra return in SelectTypeOpConversion
Extra commit after D113878
2021-11-15 16:20:53 +01:00
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
Diana Picus faf869dc65 [Flang] Fixup some comments. NFC
Clarify some comments as discussed here:
https://github.com/flang-compiler/f18-llvm-project/pull/1210
2021-11-15 09:03:37 +00:00
Peter Klausler ece17064b5 [flang] Handle ENTRY names in IsPureProcedure() predicate
Fortran defines an ENTRY point name as being pure if its enclosing
subprogram scope defines a pure procedure.

Differential Revision: https://reviews.llvm.org/D113711
2021-11-12 13:21:18 -08:00
Peter Klausler da25f968a9 [flang] Runtime performance improvements to real formatted input
Profiling a basic internal real input read benchmark shows some
hot spots in the code used to prepare input for decimal-to-binary
conversion, which is of course where the time should be spent.
The library that implements decimal to/from binary conversions has
been optimized, but not the code in the Fortran runtime that calls it,
and there are some obvious light changes worth making here.

Move some member functions from *.cpp files into the class definitions
of Descriptor and IoStatementState to enable inlining and specialization.

Make GetNextInputBytes() the new basic input API within the
runtime, replacing GetCurrentChar() -- which is rewritten in terms of
GetNextInputBytes -- so that input routines can have the
ability to acquire more than one input character at a time
and amortize overhead.

These changes speed up the time to read 1M random reals
using internal I/O from a character array from 1.29s to 0.54s
on my machine, which on par with Intel Fortran and much faster than
GNU Fortran.

Differential Revision: https://reviews.llvm.org/D113697
2021-11-12 11:40:02 -08:00
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
Peter Klausler c3dddeeafb [flang] Allow exterior branch to outermost WHERE construct statement
The labels of WHERE constructs were being created within the scope of
the construct, not the scope of its parent, leading to incorrect error
messages for branches to that label.

Differential Revision: https://reviews.llvm.org/D113696
2021-11-11 13:14:42 -08:00
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
Andrzej Warzynski f1a2b50789 [flang][nfc] Tidy up in CodeGen.cpp and TypeConverter.h
Some header `#include`s that belong in TypeConverter.h rather than in
CodeGen.cpp are moved accordingly. As TypeConverter.h is currently only
used in CodeGen.cpp, this wouldn't cause any build issues (ultimately,
all the required headers are included). However, this would become a problem
when including TypeConverter.h elsewhere.

Also, from [1], "(...) include all of the header files that you are
using ". This is currently not the case in TypeConverter.h and hence the
`#include`s should be moved.

I've also added missing namespace qualifiers in a few places in
TypeConverter.h

[1] https://llvm.org/docs/CodingStandards.html#include-as-little-as-possible

Differential Revision: https://reviews.llvm.org/D113569
2021-11-11 10:08:55 +00:00
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
Mehdi Amini f97e72aaca Use base class AsmParser/AsmPrinter in Types and Attribute print/parse method (NFC)
This decouples the printing/parsing from the "context" in which the parsing occurs.
This will allow to invoke these methods directly using an OpAsmParser/OpAsmPrinter.

Differential Revision: https://reviews.llvm.org/D113637
2021-11-11 06:26:33 +00:00
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
Valentin Clement 5eca6ad752
[fir] Use contralized values for indexing box
Add constant to index the different values in a box so that
they can be reused for the codegen part as well.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D113553
2021-11-10 15:35:19 +01:00
Diana Picus 81c99c5404 [fir] Fixup comment. NFC
Fixed comment as requested in https://reviews.llvm.org/D113560.
2021-11-10 12:49:31 +00:00
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
Mehdi Amini 18334a1c1a Fix flang following MLIR API change in f30a8a6f67
The printer for Attribute/Type does not need to include the mnemonic
anymore.
2021-11-10 01:25:36 +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 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
David Pagan b0de656bdf Initial parsing/sema for 'align' clause
Added basic parsing/sema/serialization support for 'align' clause for use with
'allocate' directive.
2021-11-09 07:34:18 -05:00
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 f411c1dd95 [flang] Fix crash in semantic error recovery situation
A CHECK() in semantics is triggering when analyzing a program
with an undefined derived type pointer because the CHECK is
expecting a new error message to have been issued in a function
but not allowing for the case that a diagnostic could have been
produced earlier.  Adjust the predicate.

Differential Revision: https://reviews.llvm.org/D113307
2021-11-08 11:19:20 -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