mirror of https://github.com/llvm/torch-mlir
57 lines
2.1 KiB
C++
57 lines
2.1 KiB
C++
//===- function_importer.cpp ----------------------------------------------===//
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//
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// This file is licensed under a pytorch-style license
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// See frontends/pytorch/LICENSE for license information.
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//
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//===----------------------------------------------------------------------===//
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#include "function_importer.h"
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#include <unordered_map>
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#include "mlir_utils.h"
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#include "torch_to_mlir_utils.h"
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#include "mlir-c/BuiltinAttributes.h"
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#include "mlir-c/BuiltinTypes.h"
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#include "mlir-c/Diagnostics.h"
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namespace py = pybind11;
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using namespace torch_mlir;
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MlirOperation
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torch_mlir::importJitFunctionAsFuncOp(MlirContext context,
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torch::jit::Function *function) {
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// Useful for debugging:
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// graph->dump();
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MlirLocation loc = mlirLocationUnknownGet(context);
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MlirType functionType =
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getFunctionTypeFromSchema(context, function->getSchema());
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// Use the function's qualified name from the compilation unit.
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// This is a stable linkage name that matches Python module lookup
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// conventions (see compilation unit import in IValueImporter for more details
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// on qualified names).
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MlirAttribute symNameAttr = mlirStringAttrGet(
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context, toMlirStringRef(function->qualname().qualifiedName()));
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MlirOperation func = createMlirOperation(
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"func", loc, mlirRegionCreate(),
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toMlirNamedAttribute("type", mlirTypeAttrGet(functionType)),
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toMlirNamedAttribute("sym_name", symNameAttr));
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MlirRegion bodyRegion = mlirOperationGetRegion(func, 0);
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std::vector<MlirType> resultTypes;
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for (int i = 0, e = mlirFunctionTypeGetNumResults(functionType); i != e;
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i++) {
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resultTypes.push_back(mlirFunctionTypeGetResult(functionType, i));
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}
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auto createTerminator = [&](c10::ArrayRef<MlirValue> yieldedValues,
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MlirBlock appendToBlock) {
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createMlirOperationAtEnd(
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appendToBlock, "std.return", loc,
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derefineValues(yieldedValues, resultTypes, loc, appendToBlock));
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};
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MlirBlock block =
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importBlock(context, function->graph()->block(), createTerminator);
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mlirRegionAppendOwnedBlock(bodyRegion, block);
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return func;
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}
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