67d0d7ac0a
The patch introduces the required changes to update the pass declarations and definitions to use the new autogenerated files and allow dropping the old infrastructure. Reviewed By: mehdi_amini, rriddle Differential Review: https://reviews.llvm.org/D132838
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
//===- OptReductionPass.cpp - Optimization Reduction Pass Wrapper ---------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the Opt Reduction Pass Wrapper. It creates a MLIR pass to
|
|
// run any optimization pass within it and only replaces the output module with
|
|
// the transformed version if it is smaller and interesting.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "mlir/Pass/PassManager.h"
|
|
#include "mlir/Pass/PassRegistry.h"
|
|
#include "mlir/Reducer/Passes.h"
|
|
#include "mlir/Reducer/Tester.h"
|
|
#include "llvm/Support/Debug.h"
|
|
|
|
namespace mlir {
|
|
#define GEN_PASS_DEF_OPTREDUCTION
|
|
#include "mlir/Reducer/Passes.h.inc"
|
|
} // namespace mlir
|
|
|
|
#define DEBUG_TYPE "mlir-reduce"
|
|
|
|
using namespace mlir;
|
|
|
|
namespace {
|
|
|
|
class OptReductionPass : public impl::OptReductionBase<OptReductionPass> {
|
|
public:
|
|
/// Runs the pass instance in the pass pipeline.
|
|
void runOnOperation() override;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
/// Runs the pass instance in the pass pipeline.
|
|
void OptReductionPass::runOnOperation() {
|
|
LLVM_DEBUG(llvm::dbgs() << "\nOptimization Reduction pass: ");
|
|
|
|
Tester test(testerName, testerArgs);
|
|
|
|
ModuleOp module = this->getOperation();
|
|
ModuleOp moduleVariant = module.clone();
|
|
|
|
OpPassManager passManager("builtin.module");
|
|
if (failed(parsePassPipeline(optPass, passManager))) {
|
|
module.emitError() << "\nfailed to parse pass pipeline";
|
|
return signalPassFailure();
|
|
}
|
|
|
|
std::pair<Tester::Interestingness, int> original = test.isInteresting(module);
|
|
if (original.first != Tester::Interestingness::True) {
|
|
module.emitError() << "\nthe original input is not interested";
|
|
return signalPassFailure();
|
|
}
|
|
|
|
// Temporarily push the variant under the main module and execute the pipeline
|
|
// on it.
|
|
module.getBody()->push_back(moduleVariant);
|
|
LogicalResult pipelineResult = runPipeline(passManager, moduleVariant);
|
|
moduleVariant->remove();
|
|
|
|
if (failed(pipelineResult)) {
|
|
module.emitError() << "\nfailed to run pass pipeline";
|
|
return signalPassFailure();
|
|
}
|
|
|
|
std::pair<Tester::Interestingness, int> reduced =
|
|
test.isInteresting(moduleVariant);
|
|
|
|
if (reduced.first == Tester::Interestingness::True &&
|
|
reduced.second < original.second) {
|
|
module.getBody()->clear();
|
|
module.getBody()->getOperations().splice(
|
|
module.getBody()->begin(), moduleVariant.getBody()->getOperations());
|
|
LLVM_DEBUG(llvm::dbgs() << "\nSuccessful Transformed version\n\n");
|
|
} else {
|
|
LLVM_DEBUG(llvm::dbgs() << "\nUnsuccessful Transformed version\n\n");
|
|
}
|
|
|
|
moduleVariant->destroy();
|
|
|
|
LLVM_DEBUG(llvm::dbgs() << "Pass Complete\n\n");
|
|
}
|
|
|
|
std::unique_ptr<Pass> mlir::createOptReductionPass() {
|
|
return std::make_unique<OptReductionPass>();
|
|
}
|