search for: istargetshuffl

We're working on integrating LLVM 3.1 and integrating our AVX improvements which we hope to send upstream. I am trying to make sure we do't lose functionality of performance. Somewhere between LLVM 2.9 and LLVM 3.1 a bunch of opcodes got removed from isTargetShuffle in X86ISelLowering.cpp. It looks like at one point isTargetShuffle got removed completely so it is very difficult to mine the history from the svn logs. isTargetShuffle seems to be used in pretty important places: static SDValue getShuffleScalarElt(SDNode *N, unsigned Index, SelectionDAG &D...