The Clang build shipped (called "LLVM Compiler" in Xcode) is also buggy: it has issues with some floating point operations on armv6 (edit: I think; it might onl

The Clang build shipped (called "LLVM Compiler" in Xcode) is also buggy: it has issues with some floating point operations on armv6 (edit: I think; it might only be THUMB, or THUMB and armv6) builds (for the iPhone). There isn't a non-LLVM GCC build for the iPhone anymore, however, so you'll probably have to choose between this bug and the floating point one when building for iPhone.