[InstCombine] Don't insert an instruction after a terminator

We tried to insert a cast of a phi in a block whose terminator is an
EHPad.  This is invalid.  Do not attempt the transform in these
circumstances.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252370 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed