tree fc42d0b31fd270149c909887b455c33ac6fd0567
parent 1c768816d7bef592d9922569501cbab663d2cae7
author David Majnemer <david.majnemer@gmail.com> 1409170114 +0000
committer David Majnemer <david.majnemer@gmail.com> 1409170114 +0000

InstSimplify: Don't simplify gep X, (Y-X) to Y if types differ

It's incorrect to perform this simplification if the types differ.
A bitcast would need to be inserted for this to work.

This fixes PR20771.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216597 91177308-0d34-0410-b5e6-96231b3b80d8