Aidan Hall 0ef2094279 [DebugInfo] Salvage more during SIL optimization passes ...

This reverts commit b1eb70bf45.

The original PR (#85244) was reverted (#85836) due to rdar://165667449

This version fixes the aforementioned issue, and (potentially) improves overall
debug info retention by salvaging info in erase(instructionIncludingDebugUses:),
rather than inserting many explicit salvageDebugInfo calls throughout the code
to make the test cases pass.

Bridging: Make salvageDebugInfo a method of MutatingContext

This feels more consistent than making it a method of Instruction.

DebugInfo: Salvage from trivially dead instructions

This handles the case we were checking in constantFoldBuiltin, so we do not need to salvage debug info there any more.

2026-01-06 12:01:20 +00:00

973 B

Raw Permalink Blame History

View Raw