reimplement GetPointerBaseWithConstantOffset().
The new code is an improved copy of the code I deleted from Analysis/Loads.cpp.
One less compute-constant-gep-offset implementation. yay :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171326 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed