Enable --trace when --multipass is on. Bugfix in bailout condition....

src/arm/cfg-arm.cc

 // Copyright 2009 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 44 matching lines @@
   {
     Comment cmnt(masm, "[ EntryNode");
     __ stm(db_w, sp, r1.bit() | cp.bit() | fp.bit() | lr.bit());
     __ add(fp, sp, Operand(2 * kPointerSize));
     if (local_count_ > 0) {
       __ mov(ip, Operand(Factory::undefined_value()));
       for (int i = 0; i < local_count_; i++) {
         __ push(ip);
       }
     }
+    if (FLAG_trace) {
+      __ CallRuntime(Runtime::kTraceEnter, 0);
+    }
     if (FLAG_check_stack) {
       StackCheckStub stub;
       __ CallStub(&stub);
     }
   }
   successor_->Compile(masm);
 }
 
 
 void ExitNode::Compile(MacroAssembler* masm) {
   ASSERT(!is_marked());
   is_marked_ = true;
   Comment cmnt(masm, "[ ExitNode");
+  if (FLAG_trace) {
+    __ push(r0);
+    __ CallRuntime(Runtime::kTraceExit, 1);
+  }
   __ mov(sp, fp);
   __ ldm(ia_w, sp, fp.bit() | lr.bit());
   __ add(sp, sp, Operand((parameter_count_ + 1) * kPointerSize));
   __ Jump(lr);
 }
 
 
 void ReturnInstr::Compile(MacroAssembler* masm) {
   Comment cmnt(masm, "[ ReturnInstr");
   value_->ToRegister(masm, r0);
 }
 
 
 void Constant::ToRegister(MacroAssembler* masm, Register reg) {
   __ mov(reg, Operand(handle_));
 }
 
 #undef __
 
 } }  // namespace v8::internal