2 Commits (1593ac04afd58b5434b0cb25be9c6761ad3dd60e)

Author SHA1 Message Date
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