Heejin Ahn 28780e59f6 [WebAssembly] Add Wasm SjLj support ...

This add support for SjLj using Wasm exception handling instructions:
https://github.com/WebAssembly/exception-handling/blob/master/proposals/exception-handling/Exceptions.md

This does not yet support the mixed use of EH and SjLj within a
function. It will be added in a follow-up CL.

This currently passes all SjLj Emscripten tests for wasm0/1/2/3/s,
except for the below:
- `test_longjmp_standalone`: Uses Node
- `test_dlfcn_longjmp`: Uses NodeRAWFS
- `test_longjmp_throw`: Mixes EH and SjLj
- `test_exceptions_longjmp1`: Mixes EH and SjLj
- `test_exceptions_longjmp2`: Mixes EH and SjLj
- `test_exceptions_longjmp3`: Mixes EH and SjLj

Reviewed By: dschuff, tlively

Differential Revision: https://reviews.llvm.org/D108960

2021-09-02 10:51:02 -07:00

4.2 KiB

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