252605 2023-02-20 13:07:35 -0800 Support WebAssembly exception handling in BBQ baseline JIT 2023-03-01 13:44:14 -0800 1 1 1 Unclassified WebKit WebAssembly WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 252959 InRadar P2 Normal --- 252209 1 d_degazio d_degazio oldest_to_newest 1935227 0 d_degazio 2023-02-20 13:07:35 -0800 rdar://105692614 Currently, the new BBQ baseline JIT for WebAssembly only supports throwing a few niche exceptions, for traps like unreachable instructions or dividing by zero. We need to implement the full WASM exception handling extension (https://github.com/WebAssembly/exception-handling/blob/main/proposals/exception-handling/Exceptions.md) for parity with the existing Air backend. Specifically, this entails implementing the following instructions: - `try` - `catch` - `catch_all` - `throw` - `rethrow` - `delegate` 1937912 1 d_degazio 2023-03-01 13:44:14 -0800 *** This bug has been marked as a duplicate of bug 252959 ***