1 //===- FuncToSPIRVPass.cpp - Func to SPIR-V Passes ----------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements a pass to convert Func dialect to SPIR-V dialect.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "mlir/Conversion/FuncToSPIRV/FuncToSPIRVPass.h"
14 #include "../PassDetail.h"
15 #include "mlir/Conversion/FuncToSPIRV/FuncToSPIRV.h"
16 #include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
17 #include "mlir/Dialect/SPIRV/Transforms/SPIRVConversion.h"
18 
19 using namespace mlir;
20 
21 namespace {
22 /// A pass converting MLIR Func operations into the SPIR-V dialect.
23 class ConvertFuncToSPIRVPass
24     : public ConvertFuncToSPIRVBase<ConvertFuncToSPIRVPass> {
25   void runOnOperation() override;
26 };
27 } // namespace
28 
runOnOperation()29 void ConvertFuncToSPIRVPass::runOnOperation() {
30   MLIRContext *context = &getContext();
31   ModuleOp module = getOperation();
32 
33   auto targetAttr = spirv::lookupTargetEnvOrDefault(module);
34   std::unique_ptr<ConversionTarget> target =
35       SPIRVConversionTarget::get(targetAttr);
36 
37   SPIRVTypeConverter::Options options;
38   options.emulateNon32BitScalarTypes = this->emulateNon32BitScalarTypes;
39   SPIRVTypeConverter typeConverter(targetAttr, options);
40 
41   RewritePatternSet patterns(context);
42   populateFuncToSPIRVPatterns(typeConverter, patterns);
43   populateBuiltinFuncToSPIRVPatterns(typeConverter, patterns);
44 
45   if (failed(applyPartialConversion(module, *target, std::move(patterns))))
46     return signalPassFailure();
47 }
48 
createConvertFuncToSPIRVPass()49 std::unique_ptr<OperationPass<ModuleOp>> mlir::createConvertFuncToSPIRVPass() {
50   return std::make_unique<ConvertFuncToSPIRVPass>();
51 }
52