b9a627e6fb
8-bit floats are not supported in SPIR-V. They are emulated as 8-bit integer during conversion.
57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
//===- ControlFlowToSPIRVPass.cpp - ControlFlow to SPIR-V 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 convert ControlFlow dialect to SPIR-V dialect.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Conversion/ControlFlowToSPIRV/ControlFlowToSPIRVPass.h"
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#include "mlir/Conversion/ControlFlowToSPIRV/ControlFlowToSPIRV.h"
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#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
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#include "mlir/Dialect/SPIRV/Transforms/SPIRVConversion.h"
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namespace mlir {
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#define GEN_PASS_DEF_CONVERTCONTROLFLOWTOSPIRVPASS
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#include "mlir/Conversion/Passes.h.inc"
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} // namespace mlir
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using namespace mlir;
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namespace {
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/// A pass converting MLIR ControlFlow operations into the SPIR-V dialect.
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class ConvertControlFlowToSPIRVPass final
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: public impl::ConvertControlFlowToSPIRVPassBase<
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ConvertControlFlowToSPIRVPass> {
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using Base::Base;
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void runOnOperation() override;
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};
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} // namespace
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void ConvertControlFlowToSPIRVPass::runOnOperation() {
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MLIRContext *context = &getContext();
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Operation *op = getOperation();
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auto targetAttr = spirv::lookupTargetEnvOrDefault(op);
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std::unique_ptr<ConversionTarget> target =
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SPIRVConversionTarget::get(targetAttr);
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SPIRVConversionOptions options;
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options.emulateLT32BitScalarTypes = this->emulateLT32BitScalarTypes;
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options.emulateUnsupportedFloatTypes = this->emulateUnsupportedFloatTypes;
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SPIRVTypeConverter typeConverter(targetAttr, options);
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// TODO: We should also take care of block argument type conversion.
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RewritePatternSet patterns(context);
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cf::populateControlFlowToSPIRVPatterns(typeConverter, patterns);
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if (failed(applyPartialConversion(op, *target, std::move(patterns))))
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return signalPassFailure();
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}
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