Egor Zhdan 57c7ecd244 [cxx-interop] Fix memory layout for structs with out-of-order base types ...

In C++, a primary base class that is placed in the beginning of the type's memory layout isn't always the type that is the first in the list of bases – the base types might be laid out in memory in a different order.

This makes sure that IRGen handles base types of C++ structs in the correct order.

This fixes an assertion in asserts-enabled compilers, and an out-of-memory error in asserts-disabled compilers. The issue was happening for both value types and foreign reference types. This change also includes a small refactoring to reuse the logic between the two code paths.

rdar://140848603

2024-12-16 15:53:43 +00:00

119 KiB

Raw Permalink Blame History

View Raw