1 //===- SCFToSPIRVPass.cpp - SCF 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 SCF dialect into SPIR-V dialect.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "mlir/Conversion/SCFToSPIRV/SCFToSPIRVPass.h"
14 
15 #include "../PassDetail.h"
16 #include "mlir/Conversion/SCFToSPIRV/SCFToSPIRV.h"
17 #include "mlir/Conversion/StandardToSPIRV/StandardToSPIRV.h"
18 #include "mlir/Dialect/SCF/SCF.h"
19 #include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
20 #include "mlir/Dialect/SPIRV/Transforms/SPIRVConversion.h"
21 
22 using namespace mlir;
23 
24 namespace {
25 struct SCFToSPIRVPass : public SCFToSPIRVBase<SCFToSPIRVPass> {
26   void runOnOperation() override;
27 };
28 } // namespace
29 
30 void SCFToSPIRVPass::runOnOperation() {
31   MLIRContext *context = &getContext();
32   ModuleOp module = getOperation();
33 
34   auto targetAttr = spirv::lookupTargetEnvOrDefault(module);
35   std::unique_ptr<ConversionTarget> target =
36       spirv::SPIRVConversionTarget::get(targetAttr);
37 
38   SPIRVTypeConverter typeConverter(targetAttr);
39   ScfToSPIRVContext scfContext;
40   OwningRewritePatternList patterns;
41   populateSCFToSPIRVPatterns(context, typeConverter, scfContext, patterns);
42   populateStandardToSPIRVPatterns(context, typeConverter, patterns);
43   populateBuiltinFuncToSPIRVPatterns(context, typeConverter, patterns);
44 
45   if (failed(applyPartialConversion(module, *target, std::move(patterns))))
46     return signalPassFailure();
47 }
48 
49 std::unique_ptr<OperationPass<ModuleOp>> mlir::createConvertSCFToSPIRVPass() {
50   return std::make_unique<SCFToSPIRVPass>();
51 }
52