`OmpStructureChecker` is supposed to work only with `parser::OmpClause`
after tablegen changes for OpenMP and OpenACC were introduced.
Hence `OmpMemoryOrderClause`, `OmpAtomicMemoryOrderClause` and similar ones were failing
to catch semantic errors, inspite of having code for semantic checks.
This patch tries to change parser for `OmpMemoryOrderClause` and similar dependent ones
and use `OmpClauseList` which resides/comes from common tablegen for OpenMP/OpenACC eventually using `parser::OmpClause`.
This patch also tries to :
1. Change `OmpCriticalDirective` in `openmp-parsers.cpp` to support `OmpClauseList`.
2. Check-flang regresses when changes were introduced due to missing semantic checks in OmpCritical, patch implements them at the minimal level to pass the regression.
3. Change tablegen to support Hint clause.
4. Adds missing source locations `CharBlock Source` in each atomic construct.
5. Remove dead code realted to `memory-order-clauses` after moving to `OmpClauseList`.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D88965
Summary:
Replace the OpenMP Runtime Library functions used in CGOpenMPRuntimeGPU
for OpenMP device code generation with ones in OMPKinds.def and use
OMPIRBuilder for generating runtime calls. This allows us to
consolidate more OpenMP code generation into the OMPIRBuilder. Future
additions to the GPU runtime functions should now go in OMPKinds.def
Reviewers: jdoerfert
Subscribers: aaron.ballman cfe-commits guansong llvm-commits sstefan1 yaxunl
Tags: #OpenMP #LLVM #clang
Differential Revision: https://reviews.llvm.org/D88430
This patch fix the device_num and device_type clauses used in the init clause. device_num was not
spelled correctly in the parser and was to restrictive with scalarIntConstantExpr instead of scalarIntExpr.
device_type is now taking a list of ScalarIntExpr.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D88571
Failing tests on Arm due to the tests automatically populating
incomatible pointer width architectures. Reverting until the tests are
updated. Failing tests:
OpenMP/distribute_parallel_for_num_threads_codegen.cpp
OpenMP/distribute_parallel_for_if_codegen.cpp
OpenMP/distribute_parallel_for_simd_if_codegen.cpp
OpenMP/distribute_parallel_for_simd_num_threads_codegen.cpp
OpenMP/target_teams_distribute_parallel_for_if_codegen.cpp
OpenMP/target_teams_distribute_parallel_for_simd_if_codegen.cpp
OpenMP/teams_distribute_parallel_for_if_codegen.cpp
OpenMP/teams_distribute_parallel_for_simd_if_codegen.cpp
This reverts commit 90eaedda9b8ef46e2c0c1b8bce33e98a3adbb68c.
Summary:
Replace the OpenMP Runtime Library functions used in CGOpenMPRuntimeGPU
for OpenMP device code generation with ones in OMPKinds.def and use
OMPIRBuilder for generating runtime calls. This allows us to consolidate
more OpenMP code generation into the OMPIRBuilder. This patch also
invalidates specifying target architectures with conflicting pointer
sizes.
Reviewers: jdoerfert
Subscribers: aaron.ballman cfe-commits guansong llvm-commits sstefan1 yaxunl
Tags: #OpenMP #Clang #LLVM
Differential Revision: https://reviews.llvm.org/D88430
Summary:
This patch add support for printing analysis messages relating to data
globalization on the GPU. This occurs when data is shared between the
threads in a GPU context and must be pushed to global or shared memory.
Reviewers: jdoerfert
Subscribers: guansong hiraditya llvm-commits ormris sstefan1 yaxunl
Tags: #OpenMP #LLVM
Differential Revision: https://reviews.llvm.org/D88243
Refactored __tgt_target_data_begin_mapper_<issue|wait> to receive the handle as an input/output argument.
This given the compiler warning of returning the handle as copy.
Differential Revision: https://reviews.llvm.org/D88029
With this extension the effects of `omp begin declare variant` will be
applied to template function declarations. The behavior is opt-in and
controlled by the `extension(allow_templates)` trait. While generally
useful, this will enable us to implement complex math function calls by
overloading the templates of the standard library with the ones in
libc++.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D85735
This extension allows to declare variants in between `omp begin/end
declare variant` that do not match the type of the existing function
with that name. Without this extension we would not find a base function
(with a compatible type), therefore create a new one, which would
cause conflicting declarations. With this extension we will not create
"missing" base functions, which basically renders these specializations
harmless. They will be generated but never called.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D85878
The tile clause in OpenACC 3.0 imposes some restriction. Element in the tile size list are either * or a
constant positive integer expression. If there are n tile sizes in the list, the loop construct must be immediately
followed by n tightly-nested loops.
This patch implement these restrictions and add some tests.
Reviewed By: klausler
Differential Revision: https://reviews.llvm.org/D86655
WIP that tries to hide the latency of runtime calls that involve host to
device memory transfers by splitting them into their "issue" and "wait"
versions. The "issue" is moved upwards as much as possible. The "wait" is
moved downards as much as possible. The "issue" issues the memory transfer
asynchronously, returning a handle. The "wait" waits in the returned
handle for the memory transfer to finish. We still lack of the movement.
Use the TableGen directive back-end to generate code for the clauses unparsing.
Reviewed By: sscalpone, kiranchandramohan
Differential Revision: https://reviews.llvm.org/D85851
This patch adds the translation of the proc_bind clause in a
parallel operation.
The values that can be specified for the proc_bind clause are
specified in the OMP.td tablegen file in the llvm/Frontend/OpenMP
directory. From this single source of truth enumeration for
proc_bind is generated in llvm and mlir (used in specification of
the parallel Operation in the OpenMP dialect). A function to return
the enum value from the string representation is also generated.
A new header file (DirectiveEmitter.h) containing definitions of
classes directive, clause, clauseval etc is created so that it can
be used in mlir as well.
Reviewers: clementval, jdoerfert, DavidTruby
Differential Revision: https://reviews.llvm.org/D84347
This patch takes advantage of the directive information and tablegen generation
to replace the clauses class parse tree and in the dump parse tree sections.
Reviewed By: sscalpone
Differential Revision: https://reviews.llvm.org/D85549
This patch takes advantage of the directive information and tablegen generation
to replace the clauses class parse tree and in the dump parse tree sections.
Reviewed By: sscalpone
Differential Revision: https://reviews.llvm.org/D85549
Replace the `ident_t` handling in Clang with the methods offered by the
OMPIRBuilder. This cuts down on the clang code as well as the
differences between the two, making further transitions easier. Tests
have changed but there should not be a real functional change. The most
interesting difference is probably that we stop generating local ident_t
allocations for now and just use globals. Given that this happens only
with debug info, the location part of the `ident_t` is probably bigger
than the test anyway. As the location part is already a global, we can
avoid the allocation, memcpy, and store in favor of a constant global
that is slightly bigger. This can be revisited if there are
complications.
Reviewed By: ABataev
Differential Revision: https://reviews.llvm.org/D80735
We need to keep track of the alloca insertion point (which we already
communicate via the callback to the user) as we place allocas as well.
Reviewed By: fghanim, SouraVX
Differential Revision: https://reviews.llvm.org/D82470
It was unclear what `isa` was supposed to mean so we did not provide any
traits for this context selector. With this patch we will allow *any*
string or identifier. We use the target attribute and target info to
determine if the trait matches. In other words, we will check if the
provided value is a target feature that is available (at the call site).
Fixes PR46338
Reviewed By: ABataev
Differential Revision: https://reviews.llvm.org/D83281
This patch removes the OMP_DIRECTIVE definition from OMPKinds.def since they
are now defined in OMP.td and OMP_DIRECTIVE is not used anymore in the code.
Reviewed By: jdenny
Differential Revision: https://reviews.llvm.org/D84329
Summary:
This patch fix a problem where clause needed to be in the allowed set even
they were in the required set. A required clause is allowed obvisouly. This allow
to remove the duplicate in OMP.td
Reviewers: kiranchandramohan, DavidTruby, richard.barton.arm, jdoerfert, sscalpone, kiranktp, ichoyjx
Reviewed By: kiranchandramohan
Subscribers: yaxunl, guansong, sstefan1, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D84353
Summary:
This patch adds more function attribute information to the runtime function definitions in OMPKinds.def. The goal is to provide sufficient information about OpenMP runtime functions to perform more optimizations on OpenMP code.
Reviewers: jdoerfert
Subscribers: aaron.ballman cfe-commits yaxunl guansong sstefan1 llvm-commits
Tags: #OpenMP #clang #LLVM
Differential Revision: https://reviews.llvm.org/D81031
as it's causing a few unused variable warnings via the macro instantiation:
sources/llvm-project/llvm/include/llvm/Frontend/OpenMP/OMPKinds.def:649:17: error: unused variable 'InaccessibleOnlyAttrs' [-Werror,-Wunused-variable]
__OMP_ATTRS_SET(InaccessibleOnlyAttrs,
^
This reverts commit 09fe0c5ab9ca5846d6cb625e9be47fdcfe49b93c.
Summary:
This patch adds more function attribute information to the runtime function definitions in OMPKinds.def. The goal is to provide sufficient information about OpenMP runtime functions to perform more optimizations on OpenMP code.
Reviewers: jdoerfert
Subscribers: aaron.ballman cfe-commits yaxunl guansong sstefan1 llvm-commits
Tags: #OpenMP #clang #llvm
Differential Revision: https://reviews.llvm.org/D81031
Summary:
This patch enhances parser support for taskwait construct to OpenMP 5.0.
2.17.5 taskwait Construct
!$omp taskwait [clause[ [,] clause] ... ]
where clause is one of the following:
depend([depend-modifier,]dependence-type : locator-list)
The patch includes code changes and testcase modifications.
Reviewed By: Valentin Clement, Kiran Chandramohan
Differential Revision: https://reviews.llvm.org/D82255
This patch implements the code generation to use OpenMP 5.0 declare mapper (a.k.a. user-defined mapper) constructs.
Patch written by Lingda Li.
Differential Revision: https://reviews.llvm.org/D67833
During code generation we might change/add basic blocks so keeping a
list of them is fairly easy to break. Nested parallel regions were
enough. The new scheme does recompute the list of blocks to be outlined
once it is needed.
Reviewed By: anchu-rajendran
Differential Revision: https://reviews.llvm.org/D82722
This implements the default(firstprivate) clause as defined in OpenMP
Technical Report 8 (2.22.4).
Reviewed By: jdoerfert, ABataev
Differential Revision: https://reviews.llvm.org/D75591
Summary:
This patch is enabling the generation of clauses enum sets for semantics check in Flang through
tablegen. Enum sets and directive - sets map is generated by the new tablegen infrsatructure for OpenMP
and other directive languages.
The semantic checks for OpenMP are modified to use this newly generated map.
Reviewers: DavidTruby, sscalpone, kiranchandramohan, ichoyjx, jdoerfert
Reviewed By: DavidTruby, ichoyjx
Subscribers: mgorny, yaxunl, hiraditya, guansong, sstefan1, aaron.ballman, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D83326
There are various runtime calls in the device runtime with unused, or
always fixed, arguments. This is bad for all sorts of reasons. Clean up
two before as we match them in OpenMPOpt now.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D83268
Summary:
Diff D83176 moved the last piece of code from OMPConstants.cpp and now this file was only
useful to include the tablegen generated file. This patch replace OMPConstants.cpp with OMP.cpp
generated by tablegen.
Reviewers: sstefan1, jdoerfert, jdenny
Reviewed By: sstefan1
Subscribers: mgorny, yaxunl, hiraditya, guansong, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D83583
Summary:
D82193 exposed a problem with global type definitions in
`OMPConstants.h`. This causes a race when running in thinLTO mode.
Types now live inside of OpenMPIRBuilder to prevent this from happening.
Reviewers: jdoerfert
Subscribers: yaxunl, hiraditya, guansong, dexonsmith, aaron.ballman, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D83176
Summary:
Generate the isAllowedClauseForDirective function from tablegen. This patch introduce
the VersionedClause in the tablegen file so that clause can be encapsulated in this class to
specify a range of validity on a directive.
VersionedClause has default minVersion, maxVersion so it can be used without them or
minVersion.
Reviewers: jdoerfert, jdenny
Reviewed By: jdenny
Subscribers: yaxunl, hiraditya, guansong, jfb, sstefan1, aaron.ballman, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D82982
Summary:
This patch is removing the custom enumeration for OpenMP Directives and Clauses and replace them
with the newly tablegen generated one from llvm/Frontend. This is a first patch and some will follow to share the same
infrastructure where possible. The next patch should use the clauses allowance defined in the tablegen file.
Reviewers: jdoerfert, DavidTruby, sscalpone, kiranchandramohan, ichoyjx
Reviewed By: DavidTruby, ichoyjx
Subscribers: jholewinski, cfe-commits, dblaikie, MaskRay, ymandel, ichoyjx, mgorny, yaxunl, guansong, jfb, sstefan1, aaron.ballman, llvm-commits
Tags: #llvm, #flang, #clang
Differential Revision: https://reviews.llvm.org/D82906
Summary:
This patch is removing the custom enumeration for OpenMP Directives and Clauses and replace them
with the newly tablegen generated one from llvm/Frontend. This is a first patch and some will follow to share the same
infrastructure where possible. The next patch should use the clauses allowance defined in the tablegen file.
Reviewers: jdoerfert, DavidTruby, sscalpone, kiranchandramohan, ichoyjx
Reviewed By: DavidTruby, ichoyjx
Subscribers: ichoyjx, mgorny, yaxunl, guansong, jfb, sstefan1, aaron.ballman, llvm-commits
Tags: #llvm, #flang
Differential Revision: https://reviews.llvm.org/D82906
Summary:
Follow up to D81736. Move getOpenMPDirectiveKind, getOpenMPClauseKind, getOpenMPDirectiveName and
getOpenMPClauseName to the new tablegen code generation. The code is generated in a new file named OMP.cpp.inc
Reviewers: jdoerfert, jdenny, thakis
Reviewed By: jdoerfert, jdenny
Subscribers: mgorny, yaxunl, hiraditya, guansong, sstefan1, llvm-commits, thakis
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D82405
This reverts commit ed4328c607306a2aa6df4833a0dce4482edbc94c.
My change apparently caused a buildbot to fail with the error
CMake Error at /b/sanitizer-x86_64-linux-autoconf/build/tsan_release_build/lib/cmake/llvm/AddLLVM.cmake:869 (add_dependencies):
The dependency target "omp_gen" of target "ScudoBenchmarks.x86_64" does not
exist.
I don't at all understand why, because as far as I can see, the target
`omp_gen` is only added to `LLVM_COMMON_DEPENDS` after having been
created, so there //should// be no way it can end up on anything's
dependency list if it doesn't exist! But apparently it happened anyway.
Differential Revision: https://reviews.llvm.org/D82659
Summary:
`include/llvm/Frontend/OpenMP/CMakeLists.txt` creates a new target
called `omp_gen`, which is automatically added to
`LLVM_COMMON_DEPENDS` by the `add_public_tablegen_target` macro. But
it only gets added to the version of `LLVM_COMMON_DEPENDS` in the
scope of that subsidiary CMakeLists file, and it doesn't propagate all
the way back up to the permanent version of that variable which is
actually used to set dependencies.
The visible effect is that the output build scripts contain a missing
dependency. For example, if I run cmake in Ninja output mode, and then
run
ninja -t commands tools/clang/examples/PrintFunctionNames/CMakeFiles/PrintFunctionNames.dir/PrintFunctionNames.cpp.o
to list all the commands that are prerequisites of building that
object file, then the list does not include the llvm-tblgen command
that builds `include/llvm/Frontend/OpenMP/OMP.h.inc`, even though that
generated include file is needed (by a chain of includes starting from
`clang/AST/AST.h`), and that object file can't be compiled without it.
This missing dependency can cause intermittent build failures,
depending on the order that Ninja (or whatever) happens to schedule
its commands.
I've fixed it by adding a `set` command in two levels of
`CMakeLists.txt` to propagate the modified version of
`LLVM_COMMON_DEPENDS` back up through the parent scopes so that
`omp_gen` does end up on the version seen by the main
`llvm/CMakeLists.txt`.
Reviewers: clementval, thakis, chandlerc, jdoerfert
Reviewed By: clementval
Subscribers: jdenny, mgorny, sstefan1, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D82659
Summary:
This defines some basic information about ICVs in `OMPKinds.def`.
We also emit remarks with initial values for each function (which are default for now)
as a way to test this.
Reviewers: jdoerfert, JonChesterfield, hamax97, jhuber6
Subscribers: yaxunl, hiraditya, guansong, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D82193
Summary:
As discussed previously when landing patch for OpenMP in Flang, the idea is
to share common part of the OpenMP declaration between the different Frontend.
While doing this it was thought that moving to tablegen instead of Macros will also
give a cleaner and more powerful way of generating these declaration.
This first part of a future series of patches is setting up the base .td file for
DirectiveLanguage as well as the OpenMP version of it. The base file is meant to
be used by other directive language such as OpenACC.
In this first patch, the Directive and Clause enums are generated with tablegen
instead of the macros on OMPConstants.h. The next pacth will extend this
to other enum and move the Flang frontend to use it.
Reviewers: jdoerfert, DavidTruby, fghanim, ABataev, jdenny, hfinkel, jhuber6, kiranchandramohan, kiranktp
Reviewed By: jdoerfert, jdenny
Subscribers: arphaman, martong, cfe-commits, mgorny, yaxunl, hiraditya, guansong, jfb, sstefan1, aaron.ballman, llvm-commits
Tags: #llvm, #openmp, #clang
Differential Revision: https://reviews.llvm.org/D81736
Summary:
As discussed previously when landing patch for OpenMP in Flang, the idea is
to share common part of the OpenMP declaration between the different Frontend.
While doing this it was thought that moving to tablegen instead of Macros will also
give a cleaner and more powerful way of generating these declaration.
This first part of a future series of patches is setting up the base .td file for
DirectiveLanguage as well as the OpenMP version of it. The base file is meant to
be used by other directive language such as OpenACC.
In this first patch, the Directive and Clause enums are generated with tablegen
instead of the macros on OMPConstants.h. The next pacth will extend this
to other enum and move the Flang frontend to use it.
Reviewers: jdoerfert, DavidTruby, fghanim, ABataev, jdenny, hfinkel, jhuber6, kiranchandramohan, kiranktp
Reviewed By: jdoerfert, jdenny
Subscribers: cfe-commits, mgorny, yaxunl, hiraditya, guansong, jfb, sstefan1, aaron.ballman, llvm-commits
Tags: #llvm, #openmp, #clang
Differential Revision: https://reviews.llvm.org/D81736
Summary:
New file include to support platform dependent grid constants. It will be
used by clang, libomptarget plugins, and deviceRTLs to access constant
values consistently and with fast access in the deviceRTLs.
Originally authored by Greg Rodgers (@gregrodgers).
Reviewers: arsenm, sameerds, jdoerfert, yaxunl, b-sumner, scchan, JonChesterfield
Reviewed By: arsenm
Subscribers: llvm-commits, pdhaliwal, jholewinski, jvesely, wdng, nhaehnle, guansong, kerbowa, sstefan1, cfe-commits, ronlieb, gregrodgers
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D80917
Summary:
Added initial codegen for 'affinity' clauses on task directives.
Emits next code:
```
kmp_task_affinity_info_t affs[<num_elems>];
void *td = __kmpc_task_alloc(..);
affs[<i>].base = &data_i;
affs[<i>].size = sizeof(data_i);
__kmpc_omp_reg_task_with_affinity(&loc, <gtid>, td, <num_elems>, affs);
```
The result returned by the call of `__kmpc_omp_reg_task_with_affinity`
function is ignored currently sincethe runtime currently ignores args
and returns 0 uncoditionally.
Reviewers: jdoerfert
Subscribers: yaxunl, guansong, sstefan1, llvm-commits, cfe-commits, caomhin
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D80240
Summary: This changes Clang's generation of OpenMP runtime functions to use the types and functions defined in OpenMPKinds and OpenMPConstants. New OpenMP runtime function information should now be added to OMPKinds.def. This patch also changed the definitions of __kmpc_push_num_teams and __kmpc_copyprivate to match those found in the runtime.
Reviewers: jdoerfert
Reviewed By: jdoerfert
Subscribers: jfb, AndreyChurbanov, openmp-commits, fghanim, hiraditya, sstefan1, cfe-commits, llvm-commits
Tags: #openmp, #clang, #llvm
Differential Revision: https://reviews.llvm.org/D80222
This was reported as PR45635, committed first as
72a9e7c926f4e32f209e528ec407fe526da5587e, reverted by
188f5cde9635a29a3f20ee2a73abd02890a752c7, and now recommitted with the
test change.
By default, all traits in the OpenMP context selector have to match for
it to be acceptable. Though, we sometimes want a single property out of
multiple to match (=any) or no match at all (=none). We offer these
choices as extensions via
`implementation={extension(match_{all,any,none})}`
to the user. The choice will affect the entire context selector not only
the traits following the match property.
The first user will be D75788. There we can replace
```
#pragma omp begin declare variant match(device={arch(nvptx64)})
#define __CUDA__
#include <__clang_cuda_cmath.h>
// TODO: Hack until we support an extension to the match clause that allows "or".
#undef __CLANG_CUDA_CMATH_H__
#undef __CUDA__
#pragma omp end declare variant
#pragma omp begin declare variant match(device={arch(nvptx)})
#define __CUDA__
#include <__clang_cuda_cmath.h>
#undef __CUDA__
#pragma omp end declare variant
```
with the much simpler
```
#pragma omp begin declare variant match(device={arch(nvptx, nvptx64)}, implementation={extension(match_any)})
#define __CUDA__
#include <__clang_cuda_cmath.h>
#undef __CUDA__
#pragma omp end declare variant
```
Reviewed By: mikerice
Differential Revision: https://reviews.llvm.org/D77414
Move the listing of allowed clauses per OpenMP directive to the new
macro file in `llvm/Frontend/OpenMP`. Also, use a single generic macro
that specifies the directive and one allowed clause explicitly instead
of a dedicated macro per directive.
We save 800 loc and boilerplate for all new directives/clauses with no
functional change. We also need to include the macro file only once and
not once per directive.
Depends on D77112.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D77113
This is a cleanup and normalization patch that also enables reuse with
Flang later on. A follow up will clean up and move the directive ->
clauses mapping.
Reviewed By: fghanim
Differential Revision: https://reviews.llvm.org/D77112
This is a cleanup and normalization patch that also enables reuse with
Flang later on. A follow up will clean up and move the directive ->
clauses mapping.
Differential Revision: https://reviews.llvm.org/D77112
This is the first part extracted from D71179 and cleaned up.
This patch provides parsing support for `omp begin/end declare variant`,
as defined in OpenMP technical report 8 (TR8) [0].
A major purpose of this patch is to provide proper math.h/cmath support
for OpenMP target offloading. See PR42061, PR42798, PR42799. The current
code was developed with this feature in mind, see [1].
[0] https://www.openmp.org/wp-content/uploads/openmp-TR8.pdf
[1] https://reviews.llvm.org/D61399#change-496lQkg0mhRN
Reviewed By: aaron.ballman
Differential Revision: https://reviews.llvm.org/D74941
If we deduplicate OpenMP runtime calls we have multiple `ident_t*` that
represent information like source location. So far, we simply kept the
one used by the replacement call. However, as exposed by PR44893, that
can cause problems if we have stack allocated `ident_t` objects. While
we need to revisit the use of these as well, it is clear that we
eventually want to merge source location information in some way. With
this patch we add the infrastructure to do so but without doing the
actual merge. Instead we pick a global `ident_t` from the replaced
calls, if possible, or create a new one with an unknown location
instead.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D74925
Add support for Master and Critical directive in the OMPIRBuilder. Both make use of a new common interface for emitting inlined OMP regions called `emitInlinedRegion` which was added in this patch as well.
Also this patch modifies clang to use the new directives when `-fopenmp-enable-irbuilder` commandline option is passed.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D72304
This swaps out the OpenMPDefaultClauseKind enum with a
llvm::omp::DefaultKind enum which is stored in OMPConstants.h.
This should not change any functionality.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D74513
This patch implements an almost complete handling of OpenMP
contexts/traits such that we can reuse most of the logic in Flang
through the OMPContext.{h,cpp} in llvm/Frontend/OpenMP.
All but construct SIMD specifiers, e.g., inbranch, and the device ISA
selector are define in `llvm/lib/Frontend/OpenMP/OMPKinds.def`. From
these definitions we generate the enum classes `TraitSet`,
`TraitSelector`, and `TraitProperty` as well as conversion and helper
functions in `llvm/lib/Frontend/OpenMP/OMPContext.{h,cpp}`.
The above enum classes are used in the parser, sema, and the AST
attribute. The latter is not a collection of multiple primitive variant
arguments that contain encodings via numbers and strings but instead a
tree that mirrors the `match` clause (see `struct OpenMPTraitInfo`).
The changes to the parser make it more forgiving when wrong syntax is
read and they also resulted in more specialized diagnostics. The tests
are updated and the core issues are detected as before. Here and
elsewhere this patch tries to be generic, thus we do not distinguish
what selector set, selector, or property is parsed except if they do
behave exceptionally, as for example `user={condition(EXPR)}` does.
The sema logic changed in two ways: First, the OMPDeclareVariantAttr
representation changed, as mentioned above, and the sema was adjusted to
work with the new `OpenMPTraitInfo`. Second, the matching and scoring
logic moved into `OMPContext.{h,cpp}`. It is implemented on a flat
representation of the `match` clause that is not tied to clang.
`OpenMPTraitInfo` provides a method to generate this flat structure (see
`struct VariantMatchInfo`) by computing integer score values and boolean
user conditions from the `clang::Expr` we keep for them.
The OpenMP context is now an explicit object (see `struct OMPContext`).
This is in anticipation of construct traits that need to be tracked. The
OpenMP context, as well as the `VariantMatchInfo`, are basically made up
of a set of active or respectively required traits, e.g., 'host', and an
ordered container of constructs which allows duplication. Matching and
scoring is kept as generic as possible to allow easy extension in the
future.
---
Test changes:
The messages checked in `OpenMP/declare_variant_messages.{c,cpp}` have
been auto generated to match the new warnings and notes of the parser.
The "subset" checks were reversed causing the wrong version to be
picked. The tests have been adjusted to correct this.
We do not print scores if the user did not provide one.
We print spaces to make lists in the `match` clause more legible.
Reviewers: kiranchandramohan, ABataev, RaviNarayanaswamy, gtbercea, grokos, sdmitriev, JonChesterfield, hfinkel, fghanim
Subscribers: merge_guards_bot, rampitec, mgorny, hiraditya, aheejin, fedor.sergeev, simoncook, bollu, guansong, dexonsmith, jfb, s.egerton, llvm-commits, cfe-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D71830
The code generation is exactly the same as it was.
But not that the special handling of untied tasks is still handled by
emitUntiedSwitch in clang.
Differential Revision: https://reviews.llvm.org/D69828
Reapply 8a56d64d7620b3764f10f03f3a1e307fcdd72c2f with minor fixes.
The problem was that cancellation can cause new edges to the parallel
region exit block which is not outlined. The CodeExtractor will encode
the information which "exit" was taken as a return value. The fix is to
ensure we do not return any value from the outlined function, to prevent
control to value conversion we ensure a single exit block for the
outlined region.
This reverts commit 3aac953afa34885a72df96f2b703b65f85cbb149.
In order to fix PR44560 and to prepare for loop transformations we now
finalize a function late, which will also do the outlining late. The
logic is as before but the actual outlining step happens now after the
function was fully constructed. Once we have loop transformations we
can apply them in the finalize step before the outlining.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D74372
This breaks under asan, see http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/38597/steps/check-clang%20asan/logs/stdio
This reverts commit bb5045429545f47a76980864322a637c31594c7f.
Revert "[FIX] Ordering problem accidentally introduced with D72304"
This reverts commit 08c0a06d8f375e48d4acebac886bfdf19a2276ed.
Revert "[OpenMP][OMPIRBuilder] Add Directives (master and critical) to OMPBuilder."
This reverts commit e8a436c5ea26f69378e4c1cf3ddb5b647b201e0f.
Add support for Master and Critical directive in the OMPIRBuilder. Both make use of a new common interface for emitting inlined OMP regions called `emitInlinedRegion` which was added in this patch as well.
Also this patch modifies clang to use the new directives when `-fopenmp-enable-irbuilder` commandline option is passed.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D72304
This adds ~27 more runtime calls to the OpenMPKinds.def file, all with
attributes. We deduplicate 16 of those automatically in function =
thread scope. And we annotate all of them automatically during the
OpenMPOpt discovery step. A test with all omp_XXXX runtime calls to
track annotation coverage is included.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D69984
The OpenMPOpt pass is a CGSCC pass in which OpenMP specific
optimizations can reside.
The OpenMPOpt pass uses the OpenMPKinds.def file to identify runtime
calls and their uses. This allows targeted transformations and eases
their implementation.
This initial patch deduplicates `__kmpc_global_thread_num` and
`omp_get_thread_num` calls. We can also identify arguments that are
equivalent to such a call result and use it instead. Later we can
determine "gtid" arguments based on the use in kernel functions etc.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D69930
Add support for Flush in the OMPIRBuilder. This patch also adds changes
to clang to use the OMPIRBuilder when '-fopenmp-enable-irbuilder'
commandline option is used.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D70712
Add support for Master and Critical directive in the OMPIRBuilder. Both make use of a new common interface for emitting inlined OMP regions called `emitInlinedRegion` which was added in this patch as well.
Also this patch modifies clang to use the new directives when `-fopenmp-enable-irbuilder` commandline option is passed.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D72304
This is the first of multiple parts to make OpenMP context/trait
handling reusable and generic. This patch was originally part of D71830
but with the unit tests it can be tested independently.
This patch implements an almost complete handling of OpenMP
contexts/traits such that we can reuse most of the logic in Flang
through the OMPContext.{h,cpp} in llvm/Frontend/OpenMP.
All but construct SIMD specifiers, e.g., inbranch, and the device ISA
selector are define in llvm/lib/Frontend/OpenMP/OMPKinds.def. From
these definitions we generate the enum classes TraitSet,
TraitSelector, and TraitProperty as well as conversion and helper
functions in llvm/lib/Frontend/OpenMP/OMPContext.{h,cpp}.
The OpenMP context is now an explicit object (see `struct OMPContext`).
This is in anticipation of construct traits that need to be tracked. The
OpenMP context, as well as the VariantMatchInfo, are basically made up
of a set of active or respectively required traits, e.g., 'host', and an
ordered container of constructs which allows duplication. Matching and
scoring is kept as generic as possible to allow easy extension in the
future.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D71847
This allows to use the OpenMPIRBuilder for parallel regions. Code was
extracted from D61953 and adapted to work with the new version (D70109).
All but one feature should be supported. An update of this patch will
provide test coverage and privatization other than shared.
Reviewed By: fghanim
Differential Revision: https://reviews.llvm.org/D70290
An `omp cancel parallel` needs to be emitted by the OpenMPIRBuilder if
the `parallel` was emitted by the OpenMPIRBuilder. This patch makes
this possible. The cancel logic is shared with the cancel barriers.
Testing is done via unit tests and the clang cancel_codegen.cpp file
once D70290 lands.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D71948
This removes the OpenMPProcBindClauseKind enum in favor of
llvm::omp::ProcBindKind which lives in OpenMPConstants.h and was
introduced in D70109.
No change in behavior is expected.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D70289
This patch combines the `emitParallel` logic prototyped in D61953 with
the OpenMPIRBuilder (D69785) and introduces `CreateParallel`.
Reviewed By: fghanim
Differential Revision: https://reviews.llvm.org/D70109
