MIPS: Fix stack frame reconstruction for generators with formal arguments.

src/mips/full-codegen-mips.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 2124 matching lines @@
   __ lw(a2, FieldMemOperand(a1, JSGeneratorObject::kReceiverOffset));
   __ push(a2);
 
   // Push holes for the rest of the arguments to the generator function.
   __ lw(a3, FieldMemOperand(t0, JSFunction::kSharedFunctionInfoOffset));
   __ lw(a3,
         FieldMemOperand(a3, SharedFunctionInfo::kFormalParameterCountOffset));
   __ LoadRoot(a2, Heap::kTheHoleValueRootIndex);
   Label push_argument_holes, push_frame;
   __ bind(&push_argument_holes);
-  __ Subu(a3, a3, Operand(1));
+  __ Subu(a3, a3, Operand(Smi::FromInt(1)));
   __ Branch(&push_frame, lt, a3, Operand(zero_reg));
   __ push(a2);
   __ jmp(&push_argument_holes);
 
   // Enter a new JavaScript frame, and initialize its slots as they were when
   // the generator was suspended.
   Label resume_frame;
   __ bind(&push_frame);
   __ Call(&resume_frame);
   __ jmp(&done);
@@ skipping 2771 matching lines @@
   *context_length = 0;
   return previous_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS