Add operator<< for HGraph and HInstructions.

Include helpers for printing arguments as well.

Test: ./test.py --host
Change-Id: I692fd5bd32a8a39da0defd9454d56ccf2480f229

1 files changed, 27 insertions, 0 deletions

diff --git a/compiler/optimizing/block_namer.cc b/compiler/optimizing/block_namer.cc
new file mode 100644
index 0000000000..9936bf1c48
--- /dev/null
+++ b/compiler/optimizing/block_namer.cc
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2021 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 "block_namer.h"
+
+#include "nodes.h"
+
+namespace art {
+
+std::ostream& BlockNamer::PrintName(std::ostream& os, HBasicBlock* blk) const {
+  return os << "B" << blk->GetBlockId();
+}
+
+}  // namespace art