Heejin Ahn 51fb5bf4d6 [WebAssembly] Support WasmEHFuncInfo serialization ...

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.

Reviewed By: dschuff

Differential Revision: https://reviews.llvm.org/D97174

2021-02-22 13:13:51 -08:00

5.3 KiB

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