Index: lib/Target/X86/X86InstrFormats.td
===================================================================
--- lib/Target/X86/X86InstrFormats.td
+++ lib/Target/X86/X86InstrFormats.td
@@ -349,10 +349,12 @@
   let TSFlags{54}    = hasEVEX_RC;
 }
 
-class PseudoI<dag oops, dag iops, list<dag> pattern,
-              InstrItinClass itin = NoItinerary>
-  : X86Inst<0, Pseudo, NoImm, oops, iops, "", itin> {
-  let Pattern = pattern;
+let isPseudo = 1 in {
+  class PseudoI<dag oops, dag iops, list<dag> pattern,
+                InstrItinClass itin = NoItinerary>
+    : X86Inst<0, Pseudo, NoImm, oops, iops, "", itin> {
+    let Pattern = pattern;
+  }
 }
 
 class I<bits<8> o, Format f, dag outs, dag ins, string asm,