49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
//===- ParallelismDetection.cpp - Parallelism Detection pass ------------*-===//
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//
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// Part of the MLIR Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a pass to detect parallel affine 'affine.for' ops.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Analysis/Passes.h"
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#include "mlir/Analysis/Utils.h"
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#include "mlir/Dialect/AffineOps/AffineOps.h"
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#include "mlir/IR/Builders.h"
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#include "mlir/Pass/Pass.h"
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using namespace mlir;
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namespace {
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struct TestParallelismDetection
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: public FunctionPass<TestParallelismDetection> {
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void runOnFunction() override;
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};
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} // end anonymous namespace
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std::unique_ptr<OpPassBase<FuncOp>> mlir::createParallelismDetectionTestPass() {
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return std::make_unique<TestParallelismDetection>();
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}
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// Walks the function and emits a note for all 'affine.for' ops detected as
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// parallel.
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void TestParallelismDetection::runOnFunction() {
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FuncOp f = getFunction();
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OpBuilder b(f.getBody());
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f.walk([&](AffineForOp forOp) {
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if (isLoopParallel(forOp))
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forOp.emitRemark("parallel loop");
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else
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forOp.emitRemark("sequential loop");
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});
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}
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static PassRegistration<TestParallelismDetection>
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pass("test-detect-parallel", "Test parallelism detection ");
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