Fix canClobberPhysRegDefs to check all SDNodes grouped together
in an SUnit, instead of just the first one. This fix is needed
by some upcoming scheduler changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67531 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed