Fix the ARM simulator's stop support and add conditional breakpoint....

src/arm/simulator-arm.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 432 matching lines @@
         }
       } else if (strcmp(cmd, "flags") == 0) {
         PrintF("N flag: %d; ", sim_->n_flag_);
         PrintF("Z flag: %d; ", sim_->z_flag_);
         PrintF("C flag: %d; ", sim_->c_flag_);
         PrintF("V flag: %d\n", sim_->v_flag_);
         PrintF("INVALID OP flag: %d; ", sim_->inv_op_vfp_flag_);
         PrintF("DIV BY ZERO flag: %d; ", sim_->div_zero_vfp_flag_);
         PrintF("OVERFLOW flag: %d; ", sim_->overflow_vfp_flag_);
         PrintF("UNDERFLOW flag: %d; ", sim_->underflow_vfp_flag_);
-        PrintF("INEXACT flag: %d; ", sim_->inexact_vfp_flag_);
+        PrintF("INEXACT flag: %d;\n", sim_->inexact_vfp_flag_);
       } else if (strcmp(cmd, "stop") == 0) {
         int32_t value;
         intptr_t stop_pc = sim_->get_pc() - 2 * Instr::kInstrSize;
         Instr* stop_instr = reinterpret_cast<Instr*>(stop_pc);
         Instr* msg_address =
           reinterpret_cast<Instr*>(stop_pc + Instr::kInstrSize);
         if ((argc == 2) && (strcmp(arg1, "unstop") == 0)) {
           // Remove the current stop.
           if (sim_->isStopInstruction(stop_instr)) {
             stop_instr->SetInstructionBits(kNopInstr);
@@ skipping 2431 matching lines @@
       }
       case 7: {
         DecodeType7(instr);
         break;
       }
       default: {
         UNIMPLEMENTED();
         break;
       }
     }
+  // If the instruction is a non taken conditional stop, we need to skip the
+  // inlined message address.
+  } else if (instr->IsStop()) {
+    set_pc(get_pc() + 2 * Instr::kInstrSize);
   }
   if (!pc_modified_) {
     set_register(pc, reinterpret_cast<int32_t>(instr) + Instr::kInstrSize);
   }
 }
 
 
 void Simulator::Execute() {
   // Get the PC to simulate. Cannot use the accessor here as we need the
   // raw PC value and not the one used as input to arithmetic instructions.
@@ skipping 131 matching lines @@
   uintptr_t address = *stack_slot;
   set_register(sp, current_sp + sizeof(uintptr_t));
   return address;
 }
 
 } }  // namespace assembler::arm
 
 #endif  // USE_SIMULATOR
 
 #endif  // V8_TARGET_ARCH_ARM