| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "mlir/Conversion/ConvertToLLVM/ToLLVMInterface.h" |
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| 10 | #include "mlir/Dialect/Arith/IR/Arith.h" |
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| 11 | #include "mlir/Dialect/Bufferization/IR/AllocationOpInterface.h" |
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| 12 | #include "mlir/Dialect/MemRef/IR/MemRef.h" |
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| 13 | #include "mlir/IR/BuiltinTypes.h" |
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| 14 | #include "mlir/Interfaces/MemorySlotInterfaces.h" |
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| 15 | #include "mlir/Interfaces/RuntimeVerifiableOpInterface.h" |
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| 16 | #include "mlir/Interfaces/SideEffectInterfaces.h" |
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| 17 | #include "mlir/Interfaces/ValueBoundsOpInterface.h" |
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| 18 | #include "mlir/Transforms/InliningUtils.h" |
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| 19 | #include <optional> |
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| 20 | |
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| 21 | using namespace mlir; |
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| 22 | using namespace mlir::memref; |
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| 23 | |
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| 24 | #include "mlir/Dialect/MemRef/IR/MemRefOpsDialect.cpp.inc" |
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| 25 | |
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| 26 | //===----------------------------------------------------------------------===// |
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| 27 | // MemRefDialect Dialect Interfaces |
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| 28 | //===----------------------------------------------------------------------===// |
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| 29 | |
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| 30 | namespace { |
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| 31 | struct MemRefInlinerInterface : public DialectInlinerInterface { |
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| 32 | using DialectInlinerInterface::DialectInlinerInterface; |
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| 33 | bool isLegalToInline(Region *dest, Region *src, bool wouldBeCloned, |
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| 34 | IRMapping &valueMapping) const final { |
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| 35 | return true; |
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| 36 | } |
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| 37 | bool isLegalToInline(Operation *, Region *, bool wouldBeCloned, |
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| 38 | IRMapping &) const final { |
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| 39 | return true; |
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| 40 | } |
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| 41 | }; |
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| 42 | } // namespace |
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| 43 | |
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| 44 | void mlir::memref::MemRefDialect::initialize() { |
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| 45 | addOperations< |
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| 46 | #define GET_OP_LIST |
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| 47 | #include "mlir/Dialect/MemRef/IR/MemRefOps.cpp.inc" |
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| 48 | >(); |
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| 49 | addInterfaces<MemRefInlinerInterface>(); |
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| 50 | declarePromisedInterface<ConvertToLLVMPatternInterface, MemRefDialect>(); |
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| 51 | declarePromisedInterfaces<bufferization::AllocationOpInterface, AllocOp, |
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| 52 | AllocaOp, ReallocOp>(); |
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| 53 | declarePromisedInterfaces<RuntimeVerifiableOpInterface, CastOp, ExpandShapeOp, |
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| 54 | LoadOp, ReinterpretCastOp, StoreOp, SubViewOp>(); |
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| 55 | declarePromisedInterfaces<ValueBoundsOpInterface, AllocOp, AllocaOp, CastOp, |
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| 56 | DimOp, GetGlobalOp, RankOp, SubViewOp>(); |
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| 57 | declarePromisedInterface<DestructurableTypeInterface, MemRefType>(); |
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| 58 | } |
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| 59 | |
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| 60 | /// Finds the unique dealloc operation (if one exists) for `allocValue`. |
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| 61 | std::optional<Operation *> mlir::memref::findDealloc(Value allocValue) { |
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| 62 | Operation *dealloc = nullptr; |
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| 63 | for (Operation *user : allocValue.getUsers()) { |
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| 64 | if (!hasEffect<MemoryEffects::Free>(user, allocValue)) |
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| 65 | continue; |
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| 66 | // If we found a realloc instead of dealloc, return std::nullopt. |
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| 67 | if (isa<memref::ReallocOp>(user)) |
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| 68 | return std::nullopt; |
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| 69 | // If we found > 1 dealloc, return std::nullopt. |
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| 70 | if (dealloc) |
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| 71 | return std::nullopt; |
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| 72 | dealloc = user; |
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| 73 | } |
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| 74 | return dealloc; |
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| 75 | } |
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| 76 | |
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