Files
llvm/mlir/test/lib/Dialect/SPIRV/TestModuleCombiner.cpp
ergawy 27324f2855 [MLIR][SPIRV] Start module combiner.
This commit adds a new library that merges/combines a number of spv
modules into a combined one. The library has a single entry point:
combine(...).

To combine a number of MLIR spv modules, we move all the module-level ops
from all the input modules into one big combined module. To that end, the
combination process can proceed in 2 phases:

  (1) resolving conflicts between pairs of ops from different modules
  (2) deduplicate equivalent ops/sub-ops in the merged module. (TODO)

This patch implements only the first phase.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D90477
2020-10-30 14:58:17 -04:00

49 lines
1.5 KiB
C++

//===- TestModuleCombiner.cpp - Pass to test SPIR-V module combiner lib ---===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/SPIRV/ModuleCombiner.h"
#include "mlir/Dialect/SPIRV/SPIRVOps.h"
#include "mlir/Dialect/SPIRV/SPIRVTypes.h"
#include "mlir/IR/Builders.h"
#include "mlir/IR/Module.h"
#include "mlir/Pass/Pass.h"
using namespace mlir;
namespace {
class TestModuleCombinerPass
: public PassWrapper<TestModuleCombinerPass,
OperationPass<mlir::ModuleOp>> {
public:
TestModuleCombinerPass() = default;
TestModuleCombinerPass(const TestModuleCombinerPass &) {}
void runOnOperation() override;
private:
mlir::spirv::OwningSPIRVModuleRef combinedModule;
};
} // namespace
void TestModuleCombinerPass::runOnOperation() {
auto modules = llvm::to_vector<4>(getOperation().getOps<spirv::ModuleOp>());
OpBuilder combinedModuleBuilder(modules[0]);
combinedModule = spirv::combine(modules, combinedModuleBuilder, nullptr);
for (spirv::ModuleOp module : modules)
module.erase();
}
namespace mlir {
void registerTestSpirvModuleCombinerPass() {
PassRegistration<TestModuleCombinerPass> registration(
"test-spirv-module-combiner", "Tests SPIR-V module combiner library");
}
} // namespace mlir