[PATCH] D97174: [WebAssembly] Support WasmEHFuncInfo serialization

[Heejin Ahn via Phabricator via llvm-commits]

aheejin created this revision.
aheejin added reviewers: dschuff, tlively.
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This adds support for serialization of `WasmEHFuncInfo`, in the form of
<Source BB Number, Unwind destination BB number>. To make YAML mapping
work, we needed to make a copy of the existing `SrcToUnwindDest` map
within `yaml::WebAssemblyMachineFunctionInfo`.

It was hard to add EH MIR tests for CFGStackify because `WasmEHFuncInfo`
could not be read from test MIR files. This adds the serialization
support for that to make EH MIR tests easier.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97174

Files:
  llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp
  llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.h
  llvm/test/CodeGen/WebAssembly/function-info.mir

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