+int PPCTTIImpl::getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
+ unsigned Factor,
+ ArrayRef<unsigned> Indices,
+ unsigned Alignment,
+ unsigned AddressSpace) {
+ assert(isa<VectorType>(VecTy) &&
+ "Expect a vector type for interleaved memory op");
+
+ // Legalize the type.
+ std::pair<int, MVT> LT = TLI->getTypeLegalizationCost(DL, VecTy);
+
+ // Firstly, the cost of load/store operation.
+ int Cost = getMemoryOpCost(Opcode, VecTy, Alignment, AddressSpace);
+
+ // PPC, for both Altivec/VSX and QPX, support cheap arbitrary permutations
+ // (at least in the sense that there need only be one non-loop-invariant
+ // instruction). For each result vector, we need one shuffle per incoming
+ // vector (except that the first shuffle can take two incoming vectors
+ // because it does not need to take itself).
+ Cost += Factor*(LT.first-1);
+
+ return Cost;
+}
+