Akira Hatanaka 42bc49d3fe Add a new parameter convention @in_cxx for non-trivial C++ classes that are passed indirectly and destructed by the caller (#73019) ...

This corresponds to the parameter-passing convention of the Itanium C++
ABI, in which the argument is passed indirectly and possibly modified,
but not destroyed, by the callee.

@in_cxx is handled the same way as @in in callers and @in_guaranteed in
callees. OwnershipModelEliminator emits the call to destroy_addr that is
needed to destroy the argument in the caller.

rdar://122707697

2024-06-27 09:44:04 -07:00

25 KiB

Raw Blame History

View Raw