Commit 2310066f authored by Nikita Popov's avatar Nikita Popov
Browse files

[InstSimplify] Simplify calculation of GEP result pointer type (NFC) 

The result type is the same as the input pointer type, except for
splat geps.
parent cfd0f41f

llvm/lib/Analysis/InstructionSimplify.cpp

+2 −4
Original line number Diff line number Diff line
@@ -4911,10 +4911,8 @@ static Value *simplifyGEPInst(Type *SrcTy, Value *Ptr, 


  // Compute the (pointer) type returned by the GEP instruction.

  Type *LastType = GetElementPtrInst::getIndexedType(SrcTy, Indices);

  Type *GEPTy = PointerType::get(LastType, AS);

  if (VectorType *VT = dyn_cast<VectorType>(Ptr->getType()))

    GEPTy = VectorType::get(GEPTy, VT->getElementCount());

  else {

  Type *GEPTy = Ptr->getType();

  if (!GEPTy->isVectorTy()) {

    for (Value *Op : Indices) {

      // If one of the operands is a vector, the result type is a vector of

      // pointers. All vector operands must have the same number of elements.