Revert r110954 for now, pseudo instructions can't make it through to the JIT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111000 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86CodeEmitter.cpp

@@ -702,6 +702,7 @@ void Emitter<CodeEmitter>::emitInstruction(const MachineInstr &MI,
     // base address.
     switch (Opcode) {
     default: 
+    MI.dump();
       llvm_unreachable("psuedo instructions should be removed before code"
                        " emission");
       break;