llvm-project/mlir/lib/Conversion/ControlFlowToSPIRV/ControlFlowToSPIRVPass.cpp
Lei Zhang dfaebd3d7b [mlir][spirv] NFC: move conversion options out of the type converter
This is a step for adding more options not directly related to type
conversion. Also with this we can now avoid the explicit constructor.

Reviewed By: kuhar

Differential Revision: https://reviews.llvm.org/D133596
2022-09-09 16:15:27 -04:00

57 lines
2.0 KiB
C++

//===- ControlFlowToSPIRVPass.cpp - ControlFlow to SPIR-V Pass ------------===//
//
// 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 implements a pass to convert ControlFlow dialect to SPIR-V dialect.
//
//===----------------------------------------------------------------------===//
#include "mlir/Conversion/ControlFlowToSPIRV/ControlFlowToSPIRVPass.h"
#include "mlir/Conversion/ControlFlowToSPIRV/ControlFlowToSPIRV.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
#include "mlir/Dialect/SPIRV/Transforms/SPIRVConversion.h"
namespace mlir {
#define GEN_PASS_DEF_CONVERTCONTROLFLOWTOSPIRV
#include "mlir/Conversion/Passes.h.inc"
} // namespace mlir
using namespace mlir;
namespace {
/// A pass converting MLIR ControlFlow operations into the SPIR-V dialect.
class ConvertControlFlowToSPIRVPass
: public impl::ConvertControlFlowToSPIRVBase<
ConvertControlFlowToSPIRVPass> {
void runOnOperation() override;
};
} // namespace
void ConvertControlFlowToSPIRVPass::runOnOperation() {
MLIRContext *context = &getContext();
Operation *op = getOperation();
auto targetAttr = spirv::lookupTargetEnvOrDefault(op);
std::unique_ptr<ConversionTarget> target =
SPIRVConversionTarget::get(targetAttr);
SPIRVConversionOptions options;
options.emulateNon32BitScalarTypes = this->emulateNon32BitScalarTypes;
SPIRVTypeConverter typeConverter(targetAttr, options);
RewritePatternSet patterns(context);
cf::populateControlFlowToSPIRVPatterns(typeConverter, patterns);
if (failed(applyPartialConversion(op, *target, std::move(patterns))))
return signalPassFailure();
}
std::unique_ptr<OperationPass<>> mlir::createConvertControlFlowToSPIRVPass() {
return std::make_unique<ConvertControlFlowToSPIRVPass>();
}