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mlir/lib/Dialect/Bufferization/Transforms/BufferUtils.cpp
| Show First 20 Lines • Show All 141 Lines • ▼ Show 20 Lines | bool BufferPlacementTransformationBase::isLoop(Operation *op) { | ||||
| return false; | return false; | ||||
| } | } | ||||
| //===----------------------------------------------------------------------===// | //===----------------------------------------------------------------------===// | ||||
| // BufferPlacementTransformationBase | // BufferPlacementTransformationBase | ||||
| //===----------------------------------------------------------------------===// | //===----------------------------------------------------------------------===// | ||||
| FailureOr<memref::GlobalOp> | FailureOr<memref::GlobalOp> | ||||
| bufferization::getGlobalFor(arith::ConstantOp constantOp, uint64_t alignment) { | bufferization::getGlobalFor(arith::ConstantOp constantOp, uint64_t alignment, | ||||
| Attribute memorySpace) { | |||||
| auto type = constantOp.getType().cast<RankedTensorType>(); | auto type = constantOp.getType().cast<RankedTensorType>(); | ||||
| auto moduleOp = constantOp->getParentOfType<ModuleOp>(); | auto moduleOp = constantOp->getParentOfType<ModuleOp>(); | ||||
| if (!moduleOp) | if (!moduleOp) | ||||
| return failure(); | return failure(); | ||||
| // If we already have a global for this constant value, no need to do | // If we already have a global for this constant value, no need to do | ||||
| // anything else. | // anything else. | ||||
| for (Operation &op : moduleOp.getRegion().getOps()) { | for (Operation &op : moduleOp.getRegion().getOps()) { | ||||
| Show All 20 Lines | bufferization::getGlobalFor(arith::ConstantOp constantOp, uint64_t alignment, | ||||
| os << "x" << type.getElementType(); | os << "x" << type.getElementType(); | ||||
| // Add an optional alignment to the global memref. | // Add an optional alignment to the global memref. | ||||
| IntegerAttr memrefAlignment = | IntegerAttr memrefAlignment = | ||||
| alignment > 0 ? IntegerAttr::get(globalBuilder.getI64Type(), alignment) | alignment > 0 ? IntegerAttr::get(globalBuilder.getI64Type(), alignment) | ||||
| : IntegerAttr(); | : IntegerAttr(); | ||||
| BufferizeTypeConverter typeConverter; | BufferizeTypeConverter typeConverter; | ||||
| auto memrefType = typeConverter.convertType(type).cast<MemRefType>(); | |||||
| if (memorySpace) | |||||
| memrefType = MemRefType::Builder(memrefType).setMemorySpace(memorySpace); | |||||
| auto global = globalBuilder.create<memref::GlobalOp>( | auto global = globalBuilder.create<memref::GlobalOp>( | ||||
| constantOp.getLoc(), (Twine("__constant_") + os.str()).str(), | constantOp.getLoc(), (Twine("__constant_") + os.str()).str(), | ||||
| /*sym_visibility=*/globalBuilder.getStringAttr("private"), | /*sym_visibility=*/globalBuilder.getStringAttr("private"), | ||||
| /*type=*/typeConverter.convertType(type).cast<MemRefType>(), | /*type=*/memrefType, | ||||
| /*initial_value=*/constantOp.getValue().cast<ElementsAttr>(), | /*initial_value=*/constantOp.getValue().cast<ElementsAttr>(), | ||||
| /*constant=*/true, | /*constant=*/true, | ||||
| /*alignment=*/memrefAlignment); | /*alignment=*/memrefAlignment); | ||||
| symbolTable.insert(global); | symbolTable.insert(global); | ||||
| // The symbol table inserts at the end of the module, but globals are a bit | // The symbol table inserts at the end of the module, but globals are a bit | ||||
| // nicer if they are at the beginning. | // nicer if they are at the beginning. | ||||
| global->moveBefore(&moduleOp.front()); | global->moveBefore(&moduleOp.front()); | ||||
| return global; | return global; | ||||
| } | } | ||||