The default compiler in Apple's Xcode developer tools is the LLVM-based Clang. Ars Technica reports that they received a heads-up from a developer who works on low-level ARM assembly coding that the latest version of Clang in Xcode adds support for a quad-core, ARM-based processor from Marvell -- the Armada XP.
Ars confirmed that the source code for portions of Clang includes definitions (highlighted in the source code listing shown above) for an architecture type of "armv7k" and a CPU type of "pj4b." According to Ars, PJ4
