diff --git a/src/mono/mono/mini/mini-llvm.c b/src/mono/mono/mini/mini-llvm.c
index 27ebf535b0ba7..c8d4af788dd3b 100644
--- a/src/mono/mono/mini/mini-llvm.c
+++ b/src/mono/mono/mini/mini-llvm.c
@@ -5840,6 +5840,7 @@ process_bb (EmitContext *ctx, MonoBasicBlock *bb)
 		case OP_NOT_NULL:
 		case OP_LIVERANGE_START:
 		case OP_LIVERANGE_END:
+		case OP_TAILCALL_PARAMETER:
 			break;
 		case OP_ICONST:
 			values [ins->dreg] = const_int32 (ins->inst_c0);
@@ -11747,13 +11748,20 @@ MONO_RESTORE_WARNING
 		}
 		case OP_IL_SEQ_POINT:
 			break;
-		default: {
+		case OP_ARGLIST:
+		case OP_TAILCALL:
+		case OP_TAILCALL_REG:
+		case OP_TAILCALL_MEMBASE:
+		case OP_CKFINITE: {
 			char reason [128];
 
 			sprintf (reason, "opcode %s", mono_inst_name (ins->opcode));
 			set_failure (ctx, reason);
 			break;
 		}
+		default:
+			g_error ("opcode %d %s", ins->opcode, mono_inst_name (ins->opcode));
+			break;
 		}
 
 		if (!ctx_ok (ctx))