[Unity][MSC][M0.3] MSCGraph Builder #15615
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Hzfengsy
approved these changes
Aug 28, 2023
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This is a pull request for MSC(Multi-System Compile)
RFC: https://discuss.tvm.apache.org/t/rfc-unity-msc-introduction-to-multi-system-compiler/15251/5
Tracking issue: #15233
This is the first part of Milestone 0: Build MSCGraph core parts. Enable translation between Relay, Relax and MSCGraph without loss information.
To limit each PR in reviewable size, the Milestone 0 will be split into 5 steps:
M0.1: Passes for set name and layout for expressions (src/contrib/msc/transform)
M0.2: MSCGraph core (src/contrib/msc/core/ir/graph && python/tvm/contrib/msc/core/ir/graph)
M0.3: MSCGraph Builder (src/contrib/msc/core/ir/graph_builder)
M0.4: Codegen (src/contrib/msc/core/codegen, src/contrib/msc/framework/tvm/codegen)
M0.5: Translation test (relax/relay test && related helper modules in python)
This PR add test for GraphBuilder and MSCGraph.
GraphBuilder translate relax/relay function to MSCGraph. Implement of GraphBuilder is similar to GraphCreator in: https://github.com/apache/tvm/blob/unity/src/relax/transform/fuse_ops.cc
The MSCGraph built form relax will be used as "IR" in all MSC process. This PR test MSCGraph by check the consistency. To keep the unittest clean and tiny, MSCGraph.inspect() is used as the readable "hash" of a MSCGraph. A inspect extract all the important infos in graph to dict, and can be used as the abstract of the graph.
cc @Hzfengsy