Add another test for wide stores fix in optimizing.

Change is https://android-review.googlesource.com/#/c/183273/

Change-Id: I8013795dfa67e8e03f51a13dfa3016b89d3b56b7
diff --git a/test/543-env-long-ref/env_long_ref.cc b/test/543-env-long-ref/env_long_ref.cc
new file mode 100644
index 0000000..4108323
--- /dev/null
+++ b/test/543-env-long-ref/env_long_ref.cc
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "arch/context.h"
+#include "art_method-inl.h"
+#include "jni.h"
+#include "scoped_thread_state_change.h"
+#include "stack.h"
+#include "thread.h"
+
+namespace art {
+
+namespace {
+
+class TestVisitor : public StackVisitor {
+ public:
+  TestVisitor(const ScopedObjectAccess& soa, Context* context, jobject expected_value)
+      SHARED_REQUIRES(Locks::mutator_lock_)
+      : StackVisitor(soa.Self(), context, StackVisitor::StackWalkKind::kIncludeInlinedFrames),
+        expected_value_(expected_value),
+        found_(false),
+        soa_(soa) {}
+
+  bool VisitFrame() SHARED_REQUIRES(Locks::mutator_lock_) {
+    ArtMethod* m = GetMethod();
+    std::string m_name(m->GetName());
+
+    if (m_name == "testCase") {
+      found_ = true;
+      uint32_t value = 0;
+      CHECK(GetVReg(m, 1, kReferenceVReg, &value));
+      CHECK_EQ(reinterpret_cast<mirror::Object*>(value),
+               soa_.Decode<mirror::Object*>(expected_value_));
+    }
+    return true;
+  }
+
+  jobject expected_value_;
+  bool found_;
+  const ScopedObjectAccess& soa_;
+};
+
+}  // namespace
+
+extern "C" JNIEXPORT void JNICALL Java_Main_lookForMyRegisters(JNIEnv*, jclass, jobject value) {
+  ScopedObjectAccess soa(Thread::Current());
+  std::unique_ptr<Context> context(Context::Create());
+  TestVisitor visitor(soa, context.get(), value);
+  visitor.WalkStack();
+  CHECK(visitor.found_);
+}
+
+}  // namespace art