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, 1 insertions, 1 deletions

diff --git a/compiler/optimizing/graph_visualizer.cc b/compiler/optimizing/graph_visualizer.cc
index 0fb4737..fabae21 100644
--- a/compiler/optimizing/graph_visualizer.cc
+++ b/compiler/optimizing/graph_visualizer.cc
@@ -307,7 +307,7 @@ HGraphVisualizer::HGraphVisualizer(std::ostream* output,
   printer.EndTag("compilation");
 }
 
-void HGraphVisualizer::DumpGraph(const char* pass_name) {
+void HGraphVisualizer::DumpGraph(const char* pass_name) const {
   if (!is_enabled_) {
     return;
   }