1260 static bool isVMerge(ShuffleVectorSDNode *N, unsigned UnitSize,  in isVMerge()  argument
1264   assert((UnitSize == 1 || UnitSize == 2 || UnitSize == 4) &&  in isVMerge()
1267   for (unsigned i = 0; i != 8/UnitSize; ++i)     // Step over units  in isVMerge()
1268     for (unsigned j = 0; j != UnitSize; ++j) {   // Step over bytes within unit  in isVMerge()
1269       if (!isConstantOrUndef(N->getMaskElt(i*UnitSize*2+j),  in isVMerge()
1270                              LHSStart+j+i*UnitSize) ||  in isVMerge()
1271           !isConstantOrUndef(N->getMaskElt(i*UnitSize*2+UnitSize+j),  in isVMerge()
1272                              RHSStart+j+i*UnitSize))  in isVMerge()
1284 bool PPC::isVMRGLShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize,  in isVMRGLShuffleMask()  argument
1288       return isVMerge(N, UnitSize, 0, 0);  in isVMRGLShuffleMask()
1290       return isVMerge(N, UnitSize, 0, 16);  in isVMRGLShuffleMask()
1295       return isVMerge(N, UnitSize, 8, 8);  in isVMRGLShuffleMask()
1297       return isVMerge(N, UnitSize, 8, 24);  in isVMRGLShuffleMask()
1309 bool PPC::isVMRGHShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize,  in isVMRGHShuffleMask()  argument
1313       return isVMerge(N, UnitSize, 8, 8);  in isVMRGHShuffleMask()
1315       return isVMerge(N, UnitSize, 8, 24);  in isVMRGHShuffleMask()
1320       return isVMerge(N, UnitSize, 0, 0);  in isVMRGHShuffleMask()
1322       return isVMerge(N, UnitSize, 0, 16);  in isVMRGHShuffleMask()