SIL: Introduce has_symbol
instruction
#62147
Merged
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Outdated suggestions cannot be applied.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.
Create a dedicated SIL instruction for
if #_hasSymbol
conditions. This solves two issues with the previous implementation:if #_hasSymbol()
can now be successfully inlined across module boundaries.#_hasSybmol
directive can be marked alive during dead function elimination, ensuring that the correct IR is generated even when the functions are otherwise unused in the program.Resolves rdar://102159307