[llvm-dev] [RFC] Add CastInst::CreateBitOrPointerOrAddrSpaceCast

Liu, Yaxun (Sam) via llvm-dev llvm-dev at lists.llvm.org
Thu Sep 29 08:53:46 PDT 2016

Currently there is


which accepts src and target as pointer or non-pointer arguments, but will assert if src and target are both pointers but having different address space.

And there is


Which only accepts pointer arguments and allows src and target have different address space.

So if I want to use CastInst::CreateBitOrPointerCast but my target and src may be pointers of different address space, I have to do it like this:

If src and target are pointers)
  call  CreatePointerBitCastOrAddrSpaceCast
  call CreateBitOrPointerCast

It seems to be a common task. I am wondering if it is a good idea to add CastInst::CreateBitOrPointerOrAddrSpaceCast which does the above, or modify CreateBitOrPointerCast to incorporate the above logic.



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