It's theoretically possible for there to not be any stackmaps, so we should guard against it.
Created attachment 224805 [details]
Created attachment 224806 [details]
Comment on attachment 224805 [details]
Landed in http://trac.webkit.org/changeset/164456
LLVM side of this landed in http://llvm.org/viewvc/llvm-project?view=revision&revision=201826