fast-interp: legacy exception handling (try/catch/rethrow/delegate/tag)#4949

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matthargett wants to merge 16 commits into

bytecodealliance:mainfrom

rebeckerspecialties:feat/legacy-eh-fast-interp-full

Commits on May 18, 2026

feat(interpreter): legacy exception handling (throw-only) for fast-interp
matthargett
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fast-interp: loader-side exception-handler metadata table
matthargett
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fast-interp: runtime EH-frame stack + TRY push / END(try) pop
matthargett
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fast-interp: WASM_OP_THROW catch-walk + return_func exception hook
matthargett
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fast-interp: WASM_OP_RETHROW catch-walk re-raise
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fast-interp: WASM_OP_DELEGATE forward-to-outer dispatch
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fast-interp: tag-with-params payload routing (same-function dispatch)
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fast-interp: tag-with-params loader bug-fix pass
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fast-interp: result-typed try-region COPY-at-CATCH alignment
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fast-interp: warn on br/br_if/br_table across try-region boundary
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fast-interp: __builtin_expect cold-path hints on CALL_INDIRECT bounds checks
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test_wamr.sh: enable wasm spec EH suite for fast-interp
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Commits on May 19, 2026

Commits on May 21, 2026

fixup: MSVC `__builtin_expect` shim for the cold-path hints
matthargett
committed