mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
b44ba47cf3
Add `Dependent` value and initializing representations for types whose representations are unknown because they are dependent. When generating SemIR in such cases, use a worst-case initializing representation that both provides a destination address and also propagates a potential result value. Use this to fix incorrect lowering and lowering crashes for specific functions involving generic types that don't use a copy value representation. In lowering, be careful to distinguish between whether the initializing representation for the generic return type uses a return slot (which affects whether the SemIR declaration and call have one) and whether the initializing representation for the specific return type uses a return slot (which affects whether the LLVM IR declaration and call have one).