SmallVector<int, 16> Mask = SVI.getShuffleMask();
Type *Int32Ty = Type::getInt32Ty(SVI.getContext());
- bool MadeChange = false;
-
- // Undefined shuffle mask -> undefined value.
- if (isa<UndefValue>(SVI.getOperand(2)))
- return replaceInstUsesWith(SVI, UndefValue::get(SVI.getType()));
+ if (auto *V = SimplifyShuffleVectorInst(LHS, RHS, SVI.getMask(),
+ SVI.getType(), DL, &TLI, &DT, &AC))
+ return replaceInstUsesWith(SVI, V);
+ bool MadeChange = false;
unsigned VWidth = SVI.getType()->getVectorNumElements();
APInt UndefElts(VWidth, 0);