-
Notifications
You must be signed in to change notification settings - Fork 427
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[HLO] Factor out Literal to DenseElements conversion
This is a useful utility for PJRT plugins that want to operate on MLIR datatypes, so better to export the method instead of allowing duplicated logic everywhere. PiperOrigin-RevId: 688276008
- Loading branch information
1 parent
eb3a2b6
commit 0b86ada
Showing
4 changed files
with
148 additions
and
52 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| /* Copyright 2024 The OpenXLA Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| ==============================================================================*/ | ||
|
|
||
| #include "xla/hlo/translate/mhlo_to_hlo/literal_exporter.h" | ||
|
|
||
| #include "absl/status/status.h" | ||
| #include "absl/status/statusor.h" | ||
| #include "absl/strings/str_cat.h" | ||
| #include "llvm/ADT/APInt.h" | ||
| #include "mlir/IR/BuiltinAttributeInterfaces.h" | ||
| #include "mlir/IR/BuiltinAttributes.h" | ||
| #include "mlir/Support/LLVM.h" | ||
| #include "xla/array.h" | ||
| #include "xla/hlo/translate/mhlo_to_hlo/type_to_shape.h" | ||
| #include "xla/layout.h" | ||
| #include "xla/literal.h" | ||
| #include "xla/literal_util.h" | ||
| #include "xla/primitive_util.h" | ||
| #include "xla/shape.h" | ||
|
|
||
| namespace mlir { | ||
| namespace mhlo { | ||
|
|
||
| template <typename T> | ||
| xla::Array<T> ArrayFromDenseElementsAttr(mlir::DenseElementsAttr dense_attr) { | ||
| constexpr xla::PrimitiveType type = | ||
| xla::primitive_util::NativeToPrimitiveType<T>(); | ||
| xla::Shape shape = xla::TypeToShape(dense_attr.getType()); | ||
| xla::Array<T> array(shape.dimensions()); | ||
| if constexpr (!xla::primitive_util::IsSubByteNonPredType(type)) { | ||
| array.SetValues(dense_attr.getValues<T>()); | ||
| } else { | ||
| // The only way to get subbyte integers from getValues() is to get them as | ||
| // APInts. | ||
| auto values = dense_attr.getValues<llvm::APInt>(); | ||
| for (int i = 0; i < values.size(); i++) { | ||
| if constexpr (xla::primitive_util::IsUnsignedIntegralType(type)) { | ||
| array.data()[i] = T{values[i].getZExtValue()}; | ||
| } else { | ||
| static_assert(xla::primitive_util::IsSignedIntegralType(type)); | ||
| array.data()[i] = T{values[i].getSExtValue()}; | ||
| } | ||
| } | ||
| } | ||
| return array; | ||
| } | ||
|
|
||
| absl::StatusOr<xla::Literal> CreateLiteralFromAttribute(mlir::ElementsAttr attr, | ||
| xla::Layout layout) { | ||
| auto dense_attr = mlir::dyn_cast<mlir::DenseElementsAttr>(attr); | ||
| if (!dense_attr) | ||
| return absl::UnimplementedError("Only dense elements attr are supported"); | ||
|
|
||
| xla::Shape shape = xla::TypeToShape(dense_attr.getType()); | ||
|
|
||
| return xla::primitive_util::PrimitiveTypeSwitch<absl::StatusOr<xla::Literal>>( | ||
| [&](auto primitive_type_constant) -> absl::StatusOr<xla::Literal> { | ||
| if constexpr (xla::primitive_util::IsArrayType( | ||
| primitive_type_constant)) { | ||
| using cpp_type = | ||
| xla::primitive_util::NativeTypeOf<primitive_type_constant>; | ||
| xla::Array<cpp_type> source_data = | ||
| ArrayFromDenseElementsAttr<cpp_type>(dense_attr); | ||
| if (layout.minor_to_major().empty()) { | ||
| return xla::LiteralUtil::CreateFromArray(source_data); | ||
| } | ||
| return xla::LiteralUtil::CreateFromArrayWithLayout(source_data, | ||
| layout); | ||
| } | ||
| return absl::InternalError(absl::StrCat( // NOLINT | ||
| "Unsupported type: ", | ||
| xla::PrimitiveType_Name(shape.element_type()))); | ||
| }, | ||
| shape.element_type()); | ||
| } | ||
|
|
||
| } // namespace mhlo | ||
| } // namespace mlir |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* Copyright 2024 The OpenXLA Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| ==============================================================================*/ | ||
|
|
||
| #ifndef XLA_HLO_TRANSLATE_MHLO_TO_HLO_LITERAL_EXPORTER_H_ | ||
| #define XLA_HLO_TRANSLATE_MHLO_TO_HLO_LITERAL_EXPORTER_H_ | ||
|
|
||
| #include "absl/status/statusor.h" | ||
| #include "mlir/IR/BuiltinAttributeInterfaces.h" | ||
| #include "xla/layout.h" | ||
| #include "xla/literal.h" | ||
|
|
||
| namespace mlir { | ||
| namespace mhlo { | ||
|
|
||
| absl::StatusOr<xla::Literal> CreateLiteralFromAttribute(mlir::ElementsAttr attr, | ||
| xla::Layout layout); | ||
|
|
||
| } // namespace mhlo | ||
| } // namespace mlir | ||
|
|
||
| #endif // XLA_HLO_TRANSLATE_MHLO_TO_HLO_LITERAL_EXPORTER_H_ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters