Clean up testing of instructions. Allow testing to quit if test pattern tests

src/trusted/validator_arm/baseline_classes.cc

 /*
  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "native_client/src/trusted/validator_arm/baseline_classes.h"
 
 #include <assert.h>
 #include <string.h>
@@ skipping 113 matching lines @@
 SafetyLevel Binary3RegisterImmedShiftedOp::safety(const Instruction i) const {
   // NaCl Constraint.
   if (d.reg(i) == kRegisterPc) return FORBIDDEN_OPERANDS;
   return MAY_BE_SAFE;
 }
 
 RegisterList Binary3RegisterImmedShiftedOp::defs(const Instruction i) const {
   return d.reg(i) + flags.reg_if_updated(i);
 }
 
+// Binary3RegisterImmedShiftedOpRnNotSp
+SafetyLevel Binary3RegisterImmedShiftedOpRnNotSp::
+safety(const Instruction i) const {
+  if (n.reg(i) == kRegisterStack) return DEPRECATED;
+  return Binary3RegisterImmedShiftedOp::safety(i);
+}
+
 // Binary4RegisterShiftedOp
 SafetyLevel Binary4RegisterShiftedOp::safety(Instruction i) const {
   // Unsafe if any register contains PC (ARM restriction).
   if ((d.reg(i) + n.reg(i) + s.reg(i) + m.reg(i))[kRegisterPc])
     return UNPREDICTABLE;
 
   // Note: We would restrict out PC as well for Rd in NaCl, but no need
   // since the ARM restriction doesn't allow it anyway.
   return MAY_BE_SAFE;
 }
@@ skipping 17 matching lines @@
   // Unsafe if any register contains PC (ARM restriction).
   if ((n.reg(i) + s.reg(i) + m.reg(i))[kRegisterPc]) return UNPREDICTABLE;
   return MAY_BE_SAFE;
 }
 
 RegisterList Binary3RegisterShiftedTest::defs(const Instruction i) const {
   return flags.reg_if_updated(i);
 }
 
 }  // namespace