Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 261bcb42d83f2838cb8245675ffd6e53eebf55bc
https://github.com/WebKit/WebKit/commit/261bcb42d83f2838cb8245675ffd6e53eebf55bc
Author: Keith Miller <[email protected]>
Date: 2026-08-28 (Fri, 28 Aug 2026)
Changed paths:
A JSTests/wasm/stress/delegate-widens-result-type-to-signature.js
M Source/JavaScriptCore/wasm/WasmFunctionParser.h
Log Message:
-----------
[Wasm] Delegate should widen types like End
https://bugs.webkit.org/show_bug.cgi?id=318755
rdar://181457816
Reviewed by Yusuke Suzuki.
The legacy Delegate wasm bytecode is essentially shorthand for: `Rethrow;
End`. So like other merge points it needs to widen the types on the
expression stack. To help avoid this problem in the future add a new
helper `endBlockAndCheckResultTypes`, which ensures the types are
appropriately widened.
Test: JSTests/wasm/stress/delegate-widens-result-type-to-signature.js
Originally-landed-as: [email protected] (db3010593c27).
rdar://185366253
Canonical link: https://commits.webkit.org/320048@main
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