On: Porting LLVM, clang et al. to GNU/Hurd

[dschiptsov]

  CC	libavcodec/flashsvenc.o
  clang: /home/schiptsov/Compile/llvm/lib/Analysis/LazyValueInfo.cpp:613: bool <anonymous namespace>::LazyValueInfoCache::solveBlockValueNonLocal(<anonymous>::LVILatticeVal &, llvm::Value *, llvm::BasicBlock *): Assertion `isa<Argument>(Val) && "Unknown live-in to the entry block"' failed.