Add missing store instruction in MIPS stub.

runtime/vm/stub_code_mips.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_MIPS)
 
 #include "vm/assembler.h"
 #include "vm/code_generator.h"
 #include "vm/compiler.h"
@@ skipping 2162 matching lines @@
   }
 
   Label update_ic_data;
   __ b(&update_ic_data);
 
   __ Bind(&found);
   const intptr_t count_offset =
       ICData::CountIndexFor(kNumArgsTested) * kWordSize;
   Label no_overflow;
   __ lw(T1, Address(T6, count_offset));
-  __ AddImmediateDetectOverflow(T1, T1, Smi::RawValue(1), CMPRES, T6);
+  __ AddImmediateDetectOverflow(T1, T1, Smi::RawValue(1), CMPRES, T5);
   __ bgez(CMPRES, &no_overflow);
+  __ delay_slot()->sw(T1, Address(T6, count_offset));
   __ LoadImmediate(TMP1, Smi::RawValue(Smi::kMaxValue));
   __ sw(TMP1, Address(T6, count_offset));  // If overflow.
   __ Bind(&no_overflow);
 
   Label compute_result;
   __ Bind(&compute_result);
   __ LoadObject(T4, Bool::True());
   __ LoadObject(T5, Bool::False());
   __ subu(CMPRES, A0, A1);
   __ movz(V0, T4, CMPRES);
@@ skipping 198 matching lines @@
   __ lw(left, Address(SP, 1 * kWordSize));
   __ lw(temp2, Address(SP, 2 * kWordSize));
   __ lw(temp1, Address(SP, 3 * kWordSize));
   __ Ret();
   __ delay_slot()->addiu(SP, SP, Immediate(4 * kWordSize));
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS