AffinePromotion and AffineDemotion passes where upstreamed
in their current status from fir-dev. In order to make sure everybody
is on the same page, this patch add some comments to state that.
Reviewed By: schweitz
Differential Revision: https://reviews.llvm.org/D111629
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
The Fortran 2018 standard defines the concept of simple contiguity
in subclause 9.5.4 as a characteristic of arrays. So that scalars
may also be used in contexts where simply contiguous arrays are
allowed, f18 treats them as single-element arrays that are trivially
contiguous. This patch documents this semantic extension and
also adds comments to the predicate that implements the concept.
Differential Revision: https://reviews.llvm.org/D111679
An LLVM Flang build bot for Windows recently failed with a
bunch of warning messages. None were from recent changes to
the Fortran compiler; I suspect that a newer (or maybe older)
version of MSVC was being used, or perhaps a different set of
compiler options were temporarily applied to the build, since
the buildbot status went back to green shortly thereafter.
Most of the warnings looked bogus to me, but some are legitimate
concerns and we might as well clean them up. This patch does so.
Differential Revision: https://reviews.llvm.org/D111677
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
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
To get proper wrap-around behavior for the various kind parameter
values of the optional COUNT= and COUNT_MAX= dummy arguments to
the intrinsic subroutine SYSTEM_CLOCK, add an extra argument to
the APIs for lowering to pass the integer kind of the actual argument.
Avoid confusion by requiring that both actual arguments have the same
kind when both are present. The results of the runtime functions
remain std::int64_t and lowering should still convert them before
storing to the actual argument variables.
Rework the implementation a bit to accomodate the dynamic
specification of the kind parameter, and to clean up some coding
issues with preprocessing and templates.
Use the kind of the COUNT=/COUNT_MAX= actual arguments to determine
the clock's resolution, where possible, in conformance with other
Fortran implementations.
Differential Revision: https://reviews.llvm.org/D111281
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>
Update .clang-tidy file with the value used in fir-dev.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: rovka
Differential Revision: https://reviews.llvm.org/D111525
Co-authored-by: Valentin Clement <clementval@gmail.com>
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
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>
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
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
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
Bit positions for the intrinsics IBCLR and IBSET and shift counts
for the intrinsics ISHFT/SHIFTA/SHIFTL/SHIFTR should be validated
when folding.
Differential Revision: https://reviews.llvm.org/D111327
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
These functions were missing from the standard intrinsic module
IEEE_ARITHMETIC. IEEE_SCALB is an alias for the standard intrinsic
function SCALE(), and the others are defined as new builtin intrinsic
functions.
Differential Revision: https://reviews.llvm.org/D111253
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
Partition libFIROptimizer into smaller libraries that reflect the
structure. Adapt potential problems.
This patch is part of the upstreaming effort from fir-dev branch. It's a
building stone to upstreaming transformations.
Reviewed By: schweitz
Differential Revision: https://reviews.llvm.org/D111055
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Partition libFIROptimizer into smaller libraries that reflect the
structure. Adapt potential problems.
This patch is part of the upstreaming effort from fir-dev branch. It's a
building stone to upstreaming transformations.
Reviewed By: schweitz
Differential Revision: https://reviews.llvm.org/D111055
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Partition libFIROptimizer into smaller libraries that reflect the
structure. Adapt potential problems.
This patch is part of the upstreaming effort from fir-dev branch. It's a
building stone to upstreaming transformations.
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Reviewed By: schweitz
Differential Revision: https://reviews.llvm.org/D111055
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>
Fix some clang-tidy wrning in flang/Optimizer/Support and
remove explicit number of inlined elements for SmallVector. This
is mostly to sync with the changes from fir-dev.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: schweitz
Differential Revision: https://reviews.llvm.org/D111044
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
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
All big enough parser, printer and verifier are moved to the cpp file.
This is one of the last one to be moved.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D110929
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>
Remove explicit number of inlined elements for SmallVector.
This patch is part of the upstreaming effort from fir-dev branch.
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Reviewed By: awarzynski
Differential Revision: https://reviews.llvm.org/D110912
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>
Move the big builder out of the td file to the cpp file.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D110820
Revert "[flang][NFC] Add debug dump method to evaluate::Expr and semantics::Symbol"
This reverts commit b0e35fde21.
Revert "[flang] Add a wrapper for Fortran main program"
This reverts commit 2c1ce0755e.
Revert "[flang][NFC] Fix header comments in some runtime headers"
This reverts commit a63f57674d.
Follow up of https://reviews.llvm.org/D83397.
In folding, make pgmath usage conditional to C99 complex
support in C++. Disable warning in such case.
In lowering, use an empty class type to indicate C99 complex
type in runtime interface.
Add a unit test enforcing C99 complex can be processed
by FIR runtime interface builder.
Differential Revision: https://reviews.llvm.org/D110860
Helps debugging when working with symbol/expression issue. The dump
method is easy to call in the debugger.
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Differential Revision: https://reviews.llvm.org/D110856
When the ProcRef is Symbol is a SubprogramDetails, the interface is
the SubprogramDetails. Do not return nullptr.
Differential Revision: https://reviews.llvm.org/D110853
Fold the transformational intrinsic function FINDLOC() for
all combinations of optional arguments and data types.
Differential Revision: https://reviews.llvm.org/D110757
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
Support the extension intrinsic subroutines EXIT([status]) and ABORT()
in the intrinsic table and runtime support library. Lowering remains
to be done.
Differential Revision: https://reviews.llvm.org/D110741
Add pinned attributes and speicifc builders.
The pinned attribute helps mark those allocas in OpenMP regions that should not
be hoisted out by an alloca hoisting pass.
This patch is part of the upstreaming effort from fir-dev branch.
Coming from PR: https://github.com/flang-compiler/f18-llvm-project/pull/1065
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D110815
Co-authored-by: Valentin Clement <clementval@gmail.com>
Move fir.freemem and fir.store to the Memory SSA operations sections.
Move parser, printer and verifier of fir.store to the .cpp file.
This patch is part of the upstreaming effort from fir-dev branch.
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Reviewed By: jeanPerier
Differential Revision: https://reviews.llvm.org/D110816
Move the parser, printer, verifier and builder out of the .td file.
Rename lenparams to typeparams to be in sync with fir-dev.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: rovka
Differential Revision: https://reviews.llvm.org/D110690
Valentin Clement