[EH] Fix assumption that all throw_refs are created from rethrows #6524
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
`shouldBeRef` incorrectly assumed that all `throw_ref`s within a `catch` body had been generated from `rethrow`s, which was not true, because `throw_ref`s are also created when translating `try`-`delegate`s: https://github.com/WebAssembly/binaryen/blob/219e668e87b012c0634043ed702534b8be31231f/src/passes/TranslateEH.cpp#L304 This fixes the assumption and changes `cast` to `dynCast`.
kripken approved these changes Apr 23, 2024
Closed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit. This suggestion is invalid because no changes were made to the code. Suggestions cannot be applied while the pull request is closed. Suggestions cannot be applied while viewing a subset of changes. Only one suggestion per line can be applied in a batch. Add this suggestion to a batch that can be applied as a single commit. Applying suggestions on deleted lines is not supported. You must change the existing code in this line in order to create a valid suggestion. Outdated suggestions cannot be applied. This suggestion has been applied or marked resolved. Suggestions cannot be applied from pending reviews. Suggestions cannot be applied on multi-line comments. Suggestions cannot be applied while the pull request is queued to merge. Suggestion cannot be applied right now. Please check back later.
shouldBeRefincorrectly assumed that allthrow_refs within acatchbody had been generated fromrethrows, which was not true, becausethrow_refs are also created when translatingtry-delegates:binaryen/src/passes/TranslateEH.cpp
Line 304 in 219e668
This fixes the assumption and changes
casttodynCast.