[llvm-dev] How to create vector pointer type?

[Celine via llvm-dev]

Hello,


Say the original type is Integer i16*,  I want to create a v16i16* type to replace it.
static Type *getVectorPtr(Type *Ty) {
    PointerType *PointerTy = dyn_cast<PointerType>(Ty);
    assert(PointerTy && "PointerType expected");


    unsigned addSpace = PointerTy->getAddressSpace();
    Type *ScalarType = PointerTy->getElementType();
    VectorType *VectorType = VectorType::get(ScalarType, 16);
    return PointerType::get(VectorType, addSpace);
}


There's no isVectorPtr() check, so I add


static bool isVectorPtr(Type *Ty) {
  bool a = false;
  if(Ty->isPointerTy() ){
    PointerType *PointerTy = dyn_cast<PointerType>(Ty);
    Type *vt = PointerTy->getElementType();
    a = vt->isVectorTy();
  }
  return a;
}


Then meet the following error:
Assertion failed: ResultElementType == cast<PointerType>(getType()->getScalarType())->getElementType(), file D:\cygwin64\home\celine\clang-102\llvm\include\llvm/IR/Instructions.h, line 958



I wonder how to create vector pointer type correctly?


--
Best Regards,
Celine
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