Fix incorrect choice of callee-saved registers save/restore points

Make the shrink wrapping pass pay attention to uses/defs of the stack pointer.

Differential revision: https://reviews.llvm.org/D45524



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@330183 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed