Update LLVM: 3.2 -> 3.3
Fix test errors due to unsetting BBs of MBBs in if-converter
Removed unneccesary local PTM variable
Fixed linker test files so that linker does not remove test symbols
No frame pointer for naked functions, removed some dead code.
Fixed missing implicit defs of return registers for ret instruction
Workaround to fix broken delayslotfiller for now.
Fixed compile error in PatmosExport with new LLVM 3.3 API