Add a C++ unittest to test the fix for PR30213.

The test exercises the branch in scev expansion when the value in ValueOffsetPair
is a ptr and the offset is not divisible by the elem type size of value.

Differential Revision: https://reviews.llvm.org/D24088


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281575 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed