- Add intrinsics.objc_super()
- Emit objc_msgSendSuper2 calls when an objc method call is combined with objc_super(self)
- Fix objc_block return value ABI for large struct returns
- Fix objc_implement method wrappers bad ABI for large struct returns and indirect args
- Simplify parameter forwarding for objc_imlpement methods
- Add intrinsics.objc_instancetype to mimi Objective-C instancetype* returns
This facilitates returning the correct type on subclasses when calling mehtods
such as `alloc`, `init`, `retain`, etc.
- Refactor Objective-C class implementations generation so that hierarchies are properly initialized
- Better codegen for context passing with ivar-based autocontext
- Allow @superclass on imported objc-c objects
- Better codegen for block forwarding invoker, arguments are forwarded directly
If no string parameter is provided, then one will be generated from the struct field tags.
The attribute must be applied if the automatic struct field tag approach is to be used.
The `@objc_name` is automatically inferred if it is not specified and
the procedure name is prefixed with type name specified in `@objc_type`,
followed by an `_`. What followed the `_` is interpreted as the `@objc_name`.
The purposes of this attribute is to let procedures opt-out of being
instrumented with asan. Typically an allocator that includes 'in-band'
meta-data will be accessing poisoned values (such as tlsf).
Making asan work with these allocators becomes very challenging so
just being to ignore asan within specific allocator procedures
makes it easier to reason and removes the need to temporarily
poison and unpoison allocator data.
`open` specifies the `mode` argument as vararg (presumably to make it
optional). varargs actually have rules about casting, in this case the
rule that any integer arg of size <= 4 has to be casted to `i32` before
passing it.
Not doing that implicit cast makes the permissions wrong or not apply at
all.
