Add extra sign extension to the same bit width before int sign
extension to another bit width. This is needed to get correct singed value.
Patch by Artur Pietrek!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75629 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed