Fix issue 974.

src/arm/full-codegen-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 188 matching lines @@
     __ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
   }
   EmitReturnSequence();
 
   // Force emit the constant pool, so it doesn't get emitted in the middle
   // of the stack check table.
   masm()->CheckConstPool(true, false);
 }
 
 
+void FullCodeGenerator::ClearAccumulator() {
+  __ mov(r0, Operand(Smi::FromInt(0)));
+}
+
+
 void FullCodeGenerator::EmitStackCheck(IterationStatement* stmt) {
   Comment cmnt(masm_, "[ Stack check");
   Label ok;
   __ LoadRoot(ip, Heap::kStackLimitRootIndex);
   __ cmp(sp, Operand(ip));
   __ b(hs, &ok);
   StackCheckStub stub;
   __ CallStub(&stub);
   __ bind(&ok);
   PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS);
@@ skipping 3372 matching lines @@
   __ mov(r1, Operand(r1, ASR, 1));  // Un-smi-tag value.
   __ add(pc, r1, Operand(masm_->CodeObject()));
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM