[RewriteStatepointsForGC] Fix debug assertion during derivable pointer rematerialization

Correct assertion would be that there is no other uses from chain we are currently cloning. It is ok to have other uses of values not from this chain.

Differential Revision: http://reviews.llvm.org/D9882



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237899 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed