Don't look through addrspacecast in GetPointerBaseWithConstantOffset

Pointers in different addrspaces can have different sizes, so it's not valid to look through addrspace cast calculating base and offset for a value.

This is similar to D13008.

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D24729


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282612 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed