Merge "Use compiling class instead of referrer for access checks."
diff --git a/compiler/optimizing/graph_visualizer.cc b/compiler/optimizing/graph_visualizer.cc
index b647917..9fd8d00 100644
--- a/compiler/optimizing/graph_visualizer.cc
+++ b/compiler/optimizing/graph_visualizer.cc
@@ -359,9 +359,13 @@
                && is_after_pass_) {
       if (instruction->GetType() == Primitive::kPrimNot) {
         if (instruction->IsLoadClass()) {
+          ReferenceTypeInfo info = instruction->AsLoadClass()->GetLoadedClassRTI();
           ScopedObjectAccess soa(Thread::Current());
-          StartAttributeStream("klass")
-              << PrettyClass(instruction->AsLoadClass()->GetLoadedClassRTI().GetTypeHandle().Get());
+          if (info.GetTypeHandle().GetReference() != nullptr) {
+            StartAttributeStream("klass") << info.GetTypeHandle().Get();
+          } else {
+            StartAttributeStream("klass") << "unresolved";
+          }
         } else {
           ReferenceTypeInfo info = instruction->GetReferenceTypeInfo();
           if (info.IsTop()) {
diff --git a/compiler/optimizing/instruction_simplifier.cc b/compiler/optimizing/instruction_simplifier.cc
index 2daeeb3..678924d 100644
--- a/compiler/optimizing/instruction_simplifier.cc
+++ b/compiler/optimizing/instruction_simplifier.cc
@@ -312,14 +312,15 @@
     HInstruction* input_value = equal->GetLeastConstantLeft();
     if (input_value->GetType() == Primitive::kPrimBoolean && input_const->IsIntConstant()) {
       HBasicBlock* block = equal->GetBlock();
+      // We are comparing the boolean to a constant which is of type int and can
+      // be any constant.
       if (input_const->AsIntConstant()->IsOne()) {
         // Replace (bool_value == true) with bool_value
         equal->ReplaceWith(input_value);
         block->RemoveInstruction(equal);
         RecordSimplification();
-      } else {
+      } else if (input_const->AsIntConstant()->IsZero()) {
         // Replace (bool_value == false) with !bool_value
-        DCHECK(input_const->AsIntConstant()->IsZero());
         block->ReplaceAndRemoveInstructionWith(
             equal, new (block->GetGraph()->GetArena()) HBooleanNot(input_value));
         RecordSimplification();
@@ -334,14 +335,15 @@
     HInstruction* input_value = not_equal->GetLeastConstantLeft();
     if (input_value->GetType() == Primitive::kPrimBoolean && input_const->IsIntConstant()) {
       HBasicBlock* block = not_equal->GetBlock();
+      // We are comparing the boolean to a constant which is of type int and can
+      // be any constant.
       if (input_const->AsIntConstant()->IsOne()) {
         // Replace (bool_value != true) with !bool_value
         block->ReplaceAndRemoveInstructionWith(
             not_equal, new (block->GetGraph()->GetArena()) HBooleanNot(input_value));
         RecordSimplification();
-      } else {
+      } else if (input_const->AsIntConstant()->IsZero()) {
         // Replace (bool_value != false) with bool_value
-        DCHECK(input_const->AsIntConstant()->IsZero());
         not_equal->ReplaceWith(input_value);
         block->RemoveInstruction(not_equal);
         RecordSimplification();
diff --git a/runtime/verifier/method_verifier.cc b/runtime/verifier/method_verifier.cc
index 91e63f5..bf6aef0 100644
--- a/runtime/verifier/method_verifier.cc
+++ b/runtime/verifier/method_verifier.cc
@@ -3812,8 +3812,9 @@
   } else {
     const RegType& array_type = work_line_->GetRegisterType(this, inst->VRegB_23x());
     if (array_type.IsZero()) {
-      // Null array type; this code path will fail at runtime. Infer a merge-able type from the
-      // instruction type.
+      // Null array type; this code path will fail at runtime.
+      // Still check that the given value matches the instruction's type.
+      work_line_->VerifyRegisterType(this, inst->VRegA_23x(), insn_type);
     } else if (!array_type.IsArrayTypes()) {
       Fail(VERIFY_ERROR_BAD_CLASS_HARD) << "not array type " << array_type << " with aput";
     } else {
diff --git a/test/496-checker-inlining-and-class-loader/src/Main.java b/test/496-checker-inlining-and-class-loader/src/Main.java
index f6d0b41..4f23eec 100644
--- a/test/496-checker-inlining-and-class-loader/src/Main.java
+++ b/test/496-checker-inlining-and-class-loader/src/Main.java
@@ -106,7 +106,7 @@
   }
 }
 
-class Main {
+public class Main {
   public static void main(String[] args) throws Exception {
     MyClassLoader o = new MyClassLoader();
     Class foo = o.loadClass("LoadedByMyClassLoader");
diff --git a/test/506-verify-aput/expected.txt b/test/506-verify-aput/expected.txt
new file mode 100644
index 0000000..ccaf6f8
--- /dev/null
+++ b/test/506-verify-aput/expected.txt
@@ -0,0 +1 @@
+Enter
diff --git a/test/506-verify-aput/info.txt b/test/506-verify-aput/info.txt
new file mode 100644
index 0000000..461d9d3
--- /dev/null
+++ b/test/506-verify-aput/info.txt
@@ -0,0 +1,2 @@
+Test that an aput on a null array is properly checked
+by the verifier.
diff --git a/test/800-smali/smali/b_21865464.smali b/test/506-verify-aput/smali/VerifyAPut1.smali
similarity index 75%
copy from test/800-smali/smali/b_21865464.smali
copy to test/506-verify-aput/smali/VerifyAPut1.smali
index df56a54..d50636f 100644
--- a/test/800-smali/smali/b_21865464.smali
+++ b/test/506-verify-aput/smali/VerifyAPut1.smali
@@ -12,18 +12,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-.class public LB21865464;
+.class public LVerifyAPut1;
 
 .super Ljava/lang/Object;
 
-.method public static run()V
-   .registers 2
-   return-void
-   goto :start
-   :start
-   # The following is dead code but used to crash the compiler.
+.method public static method()V
+   .registers 3
    const/4 v0, 0
-   return-wide v0
-   return v0
-   return-object v0
+   const/4 v1, 1
+   const/4 v2, 2
+   aput-object v2, v0, v1
+   return-void
 .end method
diff --git a/test/800-smali/smali/b_21865464.smali b/test/506-verify-aput/smali/VerifyAPut2.smali
similarity index 75%
copy from test/800-smali/smali/b_21865464.smali
copy to test/506-verify-aput/smali/VerifyAPut2.smali
index df56a54..2eceebb 100644
--- a/test/800-smali/smali/b_21865464.smali
+++ b/test/506-verify-aput/smali/VerifyAPut2.smali
@@ -12,18 +12,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-.class public LB21865464;
+.class public LVerifyAPut2;
 
 .super Ljava/lang/Object;
 
-.method public static run()V
-   .registers 2
-   return-void
-   goto :start
-   :start
-   # The following is dead code but used to crash the compiler.
+.method public static method(LMain;)V
+   .registers 3
    const/4 v0, 0
-   return-wide v0
-   return v0
-   return-object v0
+   const/4 v1, 1
+   aput p0, v0, v1
+   return-void
 .end method
diff --git a/test/506-verify-aput/src/Main.java b/test/506-verify-aput/src/Main.java
new file mode 100644
index 0000000..8359f2c
--- /dev/null
+++ b/test/506-verify-aput/src/Main.java
@@ -0,0 +1,33 @@
+/*
+ * 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 {
+  public static void main(String[] args) throws Exception {
+    // Workaround for b/18051191.
+    System.out.println("Enter");
+    try {
+      Class.forName("VerifyAPut1");
+      throw new Error("expected verification error");
+    } catch (VerifyError e) { /* ignore */ }
+
+    try {
+      Class.forName("VerifyAPut2");
+      throw new Error("expected verification error");
+    } catch (VerifyError e) { /* ignore */ }
+  }
+}
diff --git a/test/507-boolean-test/expected.txt b/test/507-boolean-test/expected.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/test/507-boolean-test/expected.txt
diff --git a/test/507-boolean-test/info.txt b/test/507-boolean-test/info.txt
new file mode 100644
index 0000000..15c20c1
--- /dev/null
+++ b/test/507-boolean-test/info.txt
@@ -0,0 +1,2 @@
+Regression test for the optimizing compiler that used to
+crash when compiling (a ? 1 : 0) == 2.
diff --git a/test/507-boolean-test/src/Main.java b/test/507-boolean-test/src/Main.java
new file mode 100644
index 0000000..f3ce92a
--- /dev/null
+++ b/test/507-boolean-test/src/Main.java
@@ -0,0 +1,27 @@
+/*
+ * 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.
+ */
+
+public class Main {
+  public static void main(String[] args) {
+    if (bar(true)) {
+      throw new Error("Expected false, got true");
+    }
+  }
+
+  public static boolean bar(boolean a) {
+    return (a ? 0 : 1) == 2;
+  }
+}
diff --git a/test/800-smali/expected.txt b/test/800-smali/expected.txt
index 3c6506b..7be78b7 100644
--- a/test/800-smali/expected.txt
+++ b/test/800-smali/expected.txt
@@ -17,6 +17,6 @@
 EmptySparseSwitch
 b/20224106
 b/17410612
-b/21865464
+b/21863767
 b/21873167
 Done!
diff --git a/test/800-smali/smali/b_21865464.smali b/test/800-smali/smali/b_21863767.smali
similarity index 96%
rename from test/800-smali/smali/b_21865464.smali
rename to test/800-smali/smali/b_21863767.smali
index df56a54..9b33bc3 100644
--- a/test/800-smali/smali/b_21865464.smali
+++ b/test/800-smali/smali/b_21863767.smali
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-.class public LB21865464;
+.class public LB21863767;
 
 .super Ljava/lang/Object;
 
diff --git a/test/800-smali/src/Main.java b/test/800-smali/src/Main.java
index d1c275c..2180186 100644
--- a/test/800-smali/src/Main.java
+++ b/test/800-smali/src/Main.java
@@ -83,7 +83,7 @@
                 0));
         testCases.add(new TestCase("b/17410612", "B17410612", "run", null, new VerifyError(),
                 0));
-        testCases.add(new TestCase("b/21865464", "B21865464", "run", null, null,
+        testCases.add(new TestCase("b/21863767", "B21863767", "run", null, null,
                 null));
         testCases.add(new TestCase("b/21873167", "B21873167", "test", null, null, null));
     }