Small patch to restore home register stack space allocation for the Win64 case.  Add test case.  This code eventually needs to be tighter, since it's always allocating it, even in leaf routines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116056 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed