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 | |
19 | namespace mlir { |
20 | #define GEN_PASS_DEF_CONVERTMATHTOSPIRVPASS |
21 | #include "mlir/Conversion/Passes.h.inc" |
22 | } // namespace mlir |
23 | |
24 | using namespace mlir; |
25 | |
26 | namespace { |
27 | /// A pass converting MLIR Math operations into the SPIR-V dialect. |
28 | class ConvertMathToSPIRVPass |
29 | : public impl::ConvertMathToSPIRVPassBase<ConvertMathToSPIRVPass> { |
30 | void runOnOperation() override; |
31 | }; |
32 | } // namespace |
33 | |
34 | void ConvertMathToSPIRVPass::runOnOperation() { |
35 | MLIRContext *context = &getContext(); |
36 | Operation *op = getOperation(); |
37 | |
38 | auto targetAttr = spirv::lookupTargetEnvOrDefault(op); |
39 | std::unique_ptr<ConversionTarget> target = |
40 | SPIRVConversionTarget::get(targetAttr: targetAttr); |
41 | |
42 | SPIRVTypeConverter typeConverter(targetAttr); |
43 | |
44 | // Use UnrealizedConversionCast as the bridge so that we don't need to pull |
45 | // in patterns for other dialects. |
46 | target->addLegalOp<UnrealizedConversionCastOp>(); |
47 | |
48 | RewritePatternSet patterns(context); |
49 | populateMathToSPIRVPatterns(typeConverter, patterns); |
50 | |
51 | if (failed(applyPartialConversion(op, *target, std::move(patterns)))) |
52 | return signalPassFailure(); |
53 | } |
54 |