libobjc2

Author	SHA1	Message	Date
David Chisnall	934cd13a7a	Initial pass at Windows support. All tests now pass with the new ABI on x86-64, with the new ABI. Some of the code is ugly and other platforms are probably broken.	8 years ago
David Chisnall	c3c81796ca	Rework slot handling so that the fields that are used for dispatch are at the start of the structure, making it easier to change the layout in the future. Also clean up the growth of various fields and consolidate some of the metadata into a pointer to the `struct objc_method`.	10 years ago
David Chisnall	b952a21abe	Add objc_msgSend for AArch64. An interesting feature of the AArch64 ABI simplifies this code relative to other platforms. AArch64 reserves an extra register (x8) for the address of struct returns, giving the	10 years ago
David Chisnall	5107130277	Move the data for sparse arrays into the tree structure. This saves one load on the message send path for each tree depth (2 loads in the common case, 3 if you have a lot of selectors), which should improve cache usage considerably. Note: This is a checkpoint commit. Currently, every objc_msgSend() implementation except for x86-64 is broken.	10 years ago