f3acb54c1b
This commit adds a new bytecode serialization format for MLIR. The actual serialization of MLIR to binary is relatively straightforward, given the very very general structure of MLIR. The underlying basis for this format is a variable-length encoding for integers, which gets heavily used for nearly all aspects of the encoding (given that most of the encoding is just indexing into lists). The format currently does not provide support for custom attribute/type serialization, and thus always uses an assembly format fallback. It also doesn't provide support for resources. These will be added in followups, the intention for this patch is to provide something that supports the basic cases, and can be built on top of. https://discourse.llvm.org/t/rfc-a-binary-serialization-format-for-mlir/63518 Differential Revision: https://reviews.llvm.org/D131747
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