(In reply to Rafael Castillo from comment #5) > i can try but i don't compile llvm by hand i use lcarlier's repo but i'll > try to see what can i do, maybe he has some old llvm snapshots still in the > repo that i can compare. FWIW, the first step would be to confirm that the problem occurs with old Mesa and new LLVM. > any tip to tell mesa to use a custom llvm path? I recommend the --with-llvm-prefix= parameter to Mesa's configure script for that.