Fix lazy deopt after tagged binary ops

src/ia32/lithium-codegen-ia32.cc

 // Copyright 2012 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 372 matching lines @@
 
   // Adjust the frame size, subsuming the unoptimized frame into the
   // optimized frame.
   int slots = GetStackSlotCount() - graph()->osr()->UnoptimizedFrameSlots();
   ASSERT(slots >= 1);
   __ sub(esp, Immediate((slots - 1) * kPointerSize));
 }
 
 
 void LCodeGen::GenerateBodyInstructionPre(LInstruction* instr) {
+  if (!instr->IsLazyBailout() && !instr->IsGap()) {
+    safepoints_.BumpLastLazySafepointIndex();
+  }
   if (!CpuFeatures::IsSupported(SSE2)) FlushX87StackIfNecessary(instr);
 }
 
 
 void LCodeGen::GenerateBodyInstructionPost(LInstruction* instr) {
   if (!CpuFeatures::IsSupported(SSE2)) {
     if (instr->IsGoto()) {
       x87_stack_.LeavingBlock(current_block_, LGoto::cast(instr));
     } else if (FLAG_debug_code && FLAG_enable_slow_asserts &&
                !instr->IsGap() && !instr->IsReturn()) {
@@ skipping 1875 matching lines @@
 
 
 void LCodeGen::DoArithmeticT(LArithmeticT* instr) {
   ASSERT(ToRegister(instr->context()).is(esi));
   ASSERT(ToRegister(instr->left()).is(edx));
   ASSERT(ToRegister(instr->right()).is(eax));
   ASSERT(ToRegister(instr->result()).is(eax));
 
   BinaryOpICStub stub(instr->op(), NO_OVERWRITE);
   CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
-  __ nop();  // Signals no inlined code.
 }
 
 
 template<class InstrType>
 void LCodeGen::EmitBranch(InstrType instr, Condition cc) {
   int left_block = instr->TrueDestination(chunk_);
   int right_block = instr->FalseDestination(chunk_);
 
   int next_block = GetNextEmittedBlock();
 
@@ skipping 4044 matching lines @@
                               FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32