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
diff --git a/test/543-env-long-ref/expected.txt b/test/543-env-long-ref/expected.txt
new file mode 100644
index 0000000..89f155b
--- /dev/null
+++ b/test/543-env-long-ref/expected.txt
@@ -0,0 +1,2 @@
+JNI_OnLoad called
+42
diff --git a/test/543-env-long-ref/info.txt b/test/543-env-long-ref/info.txt
new file mode 100644
index 0000000..6a42533
--- /dev/null
+++ b/test/543-env-long-ref/info.txt
@@ -0,0 +1,3 @@
+Regression test for optimizing that used to not return
+the right dex register in debuggable when a new value
+was overwriting the high dex register of a wide value.
diff --git a/test/543-env-long-ref/smali/TestCase.smali b/test/543-env-long-ref/smali/TestCase.smali
new file mode 100644
index 0000000..608d6eb
--- /dev/null
+++ b/test/543-env-long-ref/smali/TestCase.smali
@@ -0,0 +1,26 @@
+# 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.
+
+.class public LTestCase;
+.super Ljava/lang/Object;
+
+.method public static testCase()I
+  .registers 5
+  const-wide/16 v0, 0x1
+  invoke-static {v0, v1}, LMain;->$noinline$allocate(J)LMain;
+  move-result-object v1
+  invoke-static {v1}, LMain;->lookForMyRegisters(LMain;)V
+  iget v2, v1, LMain;->field:I
+  return v2
+.end method
diff --git a/test/543-env-long-ref/src/Main.java b/test/543-env-long-ref/src/Main.java
new file mode 100644
index 0000000..e723789
--- /dev/null
+++ b/test/543-env-long-ref/src/Main.java
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+
+import java.lang.reflect.Method;
+
+public class Main {
+  // Workaround for b/18051191.
+  class InnerClass {}
+
+  public static void main(String[] args) throws Throwable {
+    System.loadLibrary(args[0]);
+    Class<?> c = Class.forName("TestCase");
+    Method m = c.getMethod("testCase");
+    Integer a = (Integer)m.invoke(null, (Object[]) null);
+    System.out.println(a);
+  }
+
+  public static Main $noinline$allocate(long a) {
+    try {
+      return new Main();
+    } catch (Exception e) {
+      throw new Error(e);
+    }
+  }
+
+  public static native void lookForMyRegisters(Main m);
+
+  int field = 42;
+}
diff --git a/test/Android.libarttest.mk b/test/Android.libarttest.mk
index 7a22e1b..f74a516 100644
--- a/test/Android.libarttest.mk
+++ b/test/Android.libarttest.mk
@@ -37,7 +37,8 @@
   457-regs/regs_jni.cc \
   461-get-reference-vreg/get_reference_vreg_jni.cc \
   466-get-live-vreg/get_live_vreg_jni.cc \
-  497-inlining-and-class-loader/clear_dex_cache.cc
+  497-inlining-and-class-loader/clear_dex_cache.cc \
+  543-env-long-ref/env_long_ref.cc
 
 ART_TARGET_LIBARTTEST_$(ART_PHONY_TEST_TARGET_SUFFIX) += $(ART_TARGET_TEST_OUT)/$(TARGET_ARCH)/libarttest.so
 ART_TARGET_LIBARTTEST_$(ART_PHONY_TEST_TARGET_SUFFIX) += $(ART_TARGET_TEST_OUT)/$(TARGET_ARCH)/libarttestd.so