79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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// Thsi file implements passes to convert complex operations to equivalent real
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// value operations. This does not include removing complex values from function
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// argument or return types.
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#include <cstddef>
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#include <cstdint>
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#include <iterator>
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#include <numeric>
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#include "llvm/ADT/STLExtras.h"
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#include "mlir-hlo/Dialect/mhlo/IR/hlo_ops.h"
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#include "mlir-hlo/Dialect/mhlo/transforms/passes.h"
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#include "mlir-hlo/utils/hlo_utils.h"
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#include "mlir/IR/Attributes.h"
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#include "mlir/IR/MLIRContext.h"
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#include "mlir/IR/Operation.h"
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#include "mlir/IR/TypeUtilities.h"
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#include "mlir/IR/Types.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Pass/PassRegistry.h"
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#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
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using mlir::FunctionPass;
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using mlir::OwningRewritePatternList;
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using mlir::PassWrapper;
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namespace {
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class LowerComplexPass : public PassWrapper<LowerComplexPass, FunctionPass> {
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public:
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explicit LowerComplexPass() : PassWrapper<LowerComplexPass, FunctionPass>() {}
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/// Performs the lowering to MHLO dialect.
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void runOnFunction() override;
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};
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} // end anonymous namespace
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namespace mlir {
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namespace mhlo {
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namespace {
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#include "generated_lower_complex.inc"
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} // end anonymous namespace
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void PopulateComplexLoweringPatterns(MLIRContext* context,
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OwningRewritePatternList* patterns) {
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populateWithGenerated(*patterns);
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}
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} // end namespace mhlo
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} // end namespace mlir
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// Lowers the complex operations that can be represented using other operations.
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void LowerComplexPass::runOnFunction() {
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// Add lowering patterns to the list.
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OwningRewritePatternList patterns(&getContext());
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mlir::mhlo::PopulateComplexLoweringPatterns(&getContext(), &patterns);
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(void)applyPatternsAndFoldGreedily(getFunction(), std::move(patterns));
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}
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std::unique_ptr<FunctionPass> mlir::mhlo::createLowerComplexPass() {
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return std::make_unique<LowerComplexPass>();
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}
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