[SLP] Fix placement of debug statement (NFC)

By Ayal Zaks (ayal.zaks@intel.com)

Differential Revision: http://reviews.llvm.org/D16976

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260094 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed