Support for taskwait nowait clause with placeholder for runtime changes.
Reviewed By: cchen, ABataev
Differential Revision: https://reviews.llvm.org/D131830
This is a fairly large changeset, but it can be broken into a few
pieces:
- `llvm/Support/*TargetParser*` are all moved from the LLVM Support
component into a new LLVM Component called "TargetParser". This
potentially enables using tablegen to maintain this information, as
is shown in https://reviews.llvm.org/D137517. This cannot currently
be done, as llvm-tblgen relies on LLVM's Support component.
- This also moves two files from Support which use and depend on
information in the TargetParser:
- `llvm/Support/Host.{h,cpp}` which contains functions for inspecting
the current Host machine for info about it, primarily to support
getting the host triple, but also for `-mcpu=native` support in e.g.
Clang. This is fairly tightly intertwined with the information in
`X86TargetParser.h`, so keeping them in the same component makes
sense.
- `llvm/ADT/Triple.h` and `llvm/Support/Triple.cpp`, which contains
the target triple parser and representation. This is very intertwined
with the Arm target parser, because the arm architecture version
appears in canonical triples on arm platforms.
- I moved the relevant unittests to their own directory.
And so, we end up with a single component that has all the information
about the following, which to me seems like a unified component:
- Triples that LLVM Knows about
- Architecture names and CPUs that LLVM knows about
- CPU detection logic for LLVM
Given this, I have also moved `RISCVISAInfo.h` into this component, as
it seems to me to be part of that same set of functionality.
If you get link errors in your components after this patch, you likely
need to add TargetParser into LLVM_LINK_COMPONENTS in CMake.
Differential Revision: https://reviews.llvm.org/D137838
std::optional::value() has undesired exception checking semantics and is
unavailable in some older Xcode. The call sites block std::optional migration.
This patch moves some of the logic on how to emit target region functions and
adds emitTargetRegionFunction to the OpenMPIRBuilder. Also the
OpenMPOffloadMandatory flag is added to the config.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D139634
This patch adds a new runtime function `fork_call_if` and uses that
to lower parallel if statements when going through OpenMPIRBuilder.
This fixes an issue where the OpenMPIRBuilder passes all arguments to
fork_call as a struct but this struct is not filled corretly in the
non-if branch by handling the fork inside the runtime.
Differential Revision: https://reviews.llvm.org/D138495
This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated. The intent is to reduce
the amount of manual work required in migrating from Optional to
std::optional.
This is part of an effort to migrate from llvm::Optional to
std::optional:
https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
This patch moves the outlined function registration, function attribute
configuration and function ID creation to the OpenMPIRBuilder. This will later
be used by flag as well.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D137587
This change moves the getName function from clang and moves the separator class
members from CGOpenMPRuntime into OMPIRBuilder. Also enusre all the getters
in the config class are const.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D137725
This patch introudces the OpenMPIRBuilderConfig class which contains various
flags that are needed to lower OMP constructs to LLVM-IR. The purpose is to
keep the flags in one place so they do not have to be passed in every time.
The flags can be set optionally since some uses cases don't rely on functions
that depend on these flags.
Reviewed By: jdoerfert, tschuett
Differential Revision: https://reviews.llvm.org/D138220
This patch removes getOrCreateInternalVariable from Clang OMP CodeGen and replaces it's uses with OMPBuilder::getOrCreateInternalVariable. Also refactors OMPBuilder::getOrCreateInternalVariable to change type of name from Twine to StringRef
Differential Revision: https://reviews.llvm.org/D137720
same line. Cases such as those in the associated lit tests, can now be
supported.
This adds a 'Count' field to TargetRegionEntryInfo to differentiate
regions with the same source position.
The OffloadEntriesInfoManager routines are updated to maintain a count of
regions seen at a location. The registration of regions proceeds that same as
before, but now the next available count is always determined and used in the
offload entry.
Fixes: https://github.com/llvm/llvm-project/issues/52707
Differential Revision: https://reviews.llvm.org/D134816
This patch moves the createOffloadEntriesAndInfoMetadata to OpenMPIRBuilder,
the createOffloadEntry helper function. The clang specific error handling is
invoked using a callback. This code will also be used by flang in the future.
Re-apply of: 3d0e9edd8e53fb72e85084f4170513159212839a
Reverted in: 0cb65b0a585c8b3d4a8a2aefe994a8fc907934f8
A function parameter was using the wrong type 'llvm::TargetRegion' instead of
'const llvm:: TargetRegion&', which caused the error in the address sanitizer.
The correct type is now used.
This patch puts the individual target region information attributes into a
struct so that the nested mappings are not needed and passing the information
around is simplified.
Reviewed By: jdoerfert, mikerice
Differential Revision: https://reviews.llvm.org/D136601
This patch puts the individual target region information attributes into a
struct so that the nested mappings are not needed and passing the information
around is simplified.
Reviewed By: jdoerfert, mikerice
Differential Revision: https://reviews.llvm.org/D136601
This patch adds support for the `depend` clause for the `task`
construct.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D135695
Currently generation of align assumptions for OpenMP simd construct is done
outside OMPIRBuilder for C code and it is not supported for Fortran.
According to OpenMP 5.0 standard (2.9.3) only pointers and arrays can be
aligned for C code.
If given aligned variable is pointer, then Clang generates the following set
of the LLVM IR isntructions to support simd align clause:
; memory allocation for pointer address:
%A.addr = alloca ptr, align 8
; some LLVM IR code
; Alignment instructions (alignment is equal to 32):
%0 = load ptr, ptr %A.addr, align 8
call void @llvm.assume(i1 true) [ "align"(ptr %0, i64 32) ]
If given aligned variable is array, then Clang generates the following set
of the LLVM IR isntructions to support simd align clause:
; memory allocation for array:
%B = alloca [10 x i32], align 16
; some LLVM IR code
; Alignment instructions (alignment is equal to 32):
%arraydecay = getelementptr inbounds [10 x i32], ptr %B, i64 0, i64 0
call void @llvm.assume(i1 true) [ "align"(ptr %arraydecay, i64 32) ]
OMPIRBuilder was modified to generate aligned assumptions. It generates only
llvm.assume calls. Frontend is responsible for generation of aligned pointer
and getting the default alignment value if user does not specify it in aligned
clause.
Unit and regression tests were added to check if aligned clause was handled correctly.
Differential Revision: https://reviews.llvm.org/D133578
Reviewed By: jdoerfert
This patch moves the implementation of the OffloadEntriesInfoManager
to the OMPIRbuilder. This class will later be used by flang as well.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D135786
This patch moves the emitOffloadingArraysArgument function and
supporting data structures to OpenMPIRBuilder. This will later be used
in flang as well. The TargetDataInfo class was split up into generic
information and clang-specific data, which remain in clang. Further
migration will be done in in the future.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D134662
If 'order(concurrent)' clause is specified, then the iterations of SIMD loop
can be executed concurrently.
This patch adds support for LLVM IR codegen via OMPIRBuilder for SIMD loop
with 'order(concurrent)' clause. The functionality added to OMPIRBuilder is
similar to the functionality implemented in 'CodeGenFunction::EmitOMPSimdInit'.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D134046
Signed-off-by: Dominik Adamski <dominik.adamski@amd.com>
Using these queries with a context instruction and without a cache
seems to be about 2x slower than with it so this theoretically
improves compile time.
This patch adds support for if clause to task construct in OpenMP
IRBuilder.
Reviewed By: raghavendhra
Differential Revision: https://reviews.llvm.org/D130615
This patch adds OMPIRBuilder support for the safelen clause for the
simd directive.
Reviewed By: shraiysh, Meinersbur
Differential Revision: https://reviews.llvm.org/D131526
Scope of changes:
1) Added new function to generate loop versioning
2) Added support for if clause to applySimd function
2) Added tests which confirm that lowering is successful
If ifCond is specified, then collapsed loop is duplicated and if branch
is added. Duplicated loop is executed if simd ifCond is evaluated to false.
Reviewed By: Meinersbur
Differential Revision: https://reviews.llvm.org/D129368
Signed-off-by: Dominik Adamski <dominik.adamski@amd.com>
This patch adds OMPIRBuilder support for the simdlen clause for the
simd directive. It uses the simdlen support in OpenMPIRBuilder when
it is enabled in Clang. Simdlen is lowered by OpenMPIRBuilder by
generating the loop.vectorize.width metadata.
Reviewed By: jdoerfert, Meinersbur
Differential Revision: https://reviews.llvm.org/D129149
This patch changes the code we generate to enter a target region on the
device. This is in-line with the new definition in the runtime that was
added previously. Additionally we implement this in the OpenMPIRBuilder
so that this code can be shared with Flang in the future.
Reviewed By: ABataev
Differential Revision: https://reviews.llvm.org/D128550
D127041 introduced the support for `fmax` and `fmin` such that we can also reprent
`atomic compare` and `atomic compare capture` with `atomicrmw` instruction. This
patch simply lifts the limitation we set before.
Depend on D127041.
Reviewed By: ABataev
Differential Revision: https://reviews.llvm.org/D127042
This patch adds the support for `fmax` and `fmin` operations in `atomicrmw`
instruction. For now (at least in this patch), the instruction will be expanded
to CAS loop. There are already a couple of targets supporting the feature. I'll
create another patch(es) to enable them accordingly.
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D127041
This patch adds translation for omp.task from OpenMPDialect to LLVM IR
Dialect and adds tests for the same.
Depends on D71989
Reviewed By: ftynse, kiranchandramohan, peixin, Meinersbur
Differential Revision: https://reviews.llvm.org/D123919
