Introduce a class to implement optimization passes.

- Add art::HOptimization.
- Rename art::ConstantPropagation to art::HConstantFolding in
  compiler/optimizing/constant_folding.h to avoid name
  clashes with a class of the same name in
  compiler/dex/post_opt_passes.h.
- Rename art::DeadCodeElimination to
  art::HDeadCodeElimination for consistency reasons.
- Have art::HDeadCodeElimination and art::HConstantFolding
  derive from art::HOptimization.
- Start to use these optimizations in
  art:OptimizingCompiler::TryCompile.

Change-Id: Iaab350c122d87b2333b3760312b15c0592d7e010

1 files changed, 41 insertions, 0 deletions

diff --git a/compiler/optimizing/optimization.cc b/compiler/optimizing/optimization.cc
new file mode 100644
index 0000000000..7263691f5e
--- /dev/null
+++ b/compiler/optimizing/optimization.cc
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2014 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 "optimization.h"
+
+#include "graph_checker.h"
+
+namespace art {
+
+void HOptimization::Execute() {
+  Run();
+  visualizer_.DumpGraph(pass_name_);
+  Check();
+}
+
+void HOptimization::Check() {
+  if (kIsDebugBuild) {
+    if (is_in_ssa_form_) {
+      SSAChecker checker(graph_->GetArena(), graph_);
+      CheckInternal(&checker);
+    } else {
+      GraphChecker checker(graph_->GetArena(), graph_);
+      CheckInternal(&checker);
+    }
+  }
+}
+
+}  // namespace art