[CodeGenPrepare] Try and appease sanitizers

dupRetToEnableTailCallOpts(BB) can invalidate BB. It must run *after* we iterate across BB!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257886 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed