Composite pass allows to run sequence of passes in the loop until fixed point or maximum number of iterations is reached. The usual candidates are canonicalize+CSE as canonicalize can open more opportunities for CSE and vice-versa.
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
//===------ TestCompositePass.cpp --- composite test pass -----------------===//
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//
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// Part of the LLVM 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 test the composite pass utility.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Pass/Pass.h"
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#include "mlir/Pass/PassManager.h"
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#include "mlir/Pass/PassRegistry.h"
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#include "mlir/Transforms/Passes.h"
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namespace mlir {
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namespace test {
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void registerTestCompositePass() {
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registerPassPipeline(
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"test-composite-fixed-point-pass", "Test composite pass",
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[](OpPassManager &pm, StringRef optionsStr,
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function_ref<LogicalResult(const Twine &)> errorHandler) {
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if (!optionsStr.empty())
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return failure();
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pm.addPass(createCompositeFixedPointPass(
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"TestCompositePass", [](OpPassManager &p) {
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p.addPass(createCanonicalizerPass());
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p.addPass(createCSEPass());
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}));
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return success();
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},
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[](function_ref<void(const detail::PassOptions &)>) {});
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}
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} // namespace test
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} // namespace mlir
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