1 | //===- MathToSPIRVPass.cpp - Math to SPIR-V Passes ------------------------===// |
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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 standard dialect to SPIR-V dialect. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #include "mlir/Conversion/MathToSPIRV/MathToSPIRVPass.h" |
14 | |
15 | #include "mlir/Conversion/MathToSPIRV/MathToSPIRV.h" |
16 | #include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h" |
17 | #include "mlir/Dialect/SPIRV/Transforms/SPIRVConversion.h" |
18 | #include "mlir/Pass/Pass.h" |
19 | |
20 | namespace mlir { |
21 | #define GEN_PASS_DEF_CONVERTMATHTOSPIRV |
22 | #include "mlir/Conversion/Passes.h.inc" |
23 | } // namespace mlir |
24 | |
25 | using namespace mlir; |
26 | |
27 | namespace { |
28 | /// A pass converting MLIR Math operations into the SPIR-V dialect. |
29 | class ConvertMathToSPIRVPass |
30 | : public impl::ConvertMathToSPIRVBase<ConvertMathToSPIRVPass> { |
31 | void runOnOperation() override; |
32 | }; |
33 | } // namespace |
34 | |
35 | void ConvertMathToSPIRVPass::runOnOperation() { |
36 | MLIRContext *context = &getContext(); |
37 | Operation *op = getOperation(); |
38 | |
39 | auto targetAttr = spirv::lookupTargetEnvOrDefault(op); |
40 | std::unique_ptr<ConversionTarget> target = |
41 | SPIRVConversionTarget::get(targetAttr: targetAttr); |
42 | |
43 | SPIRVTypeConverter typeConverter(targetAttr); |
44 | |
45 | // Use UnrealizedConversionCast as the bridge so that we don't need to pull |
46 | // in patterns for other dialects. |
47 | target->addLegalOp<UnrealizedConversionCastOp>(); |
48 | |
49 | RewritePatternSet patterns(context); |
50 | populateMathToSPIRVPatterns(typeConverter, patterns); |
51 | |
52 | if (failed(applyPartialConversion(op, *target, std::move(patterns)))) |
53 | return signalPassFailure(); |
54 | } |
55 | |
56 | std::unique_ptr<OperationPass<>> mlir::createConvertMathToSPIRVPass() { |
57 | return std::make_unique<ConvertMathToSPIRVPass>(); |
58 | } |
59 |