Create HGraph outside Builder, print timings

This patch refactors the way HGraph objects are created, moving the
instantiation out of the Builder class and creating the CodeGenerator
earlier. The patch uses this to build a single interface for printing
timings info and dumping the CFG.

Change-Id: I2eb63eabf28e2d0f5cdc7affaa690c3a4b1bdd21

1 files changed, 4 insertions, 3 deletions

diff --git a/compiler/optimizing/liveness_test.cc b/compiler/optimizing/liveness_test.cc
index f2d49ac397..c9be570c73 100644
--- a/compiler/optimizing/liveness_test.cc
+++ b/compiler/optimizing/liveness_test.cc
@@ -45,10 +45,11 @@ static void DumpBitVector(BitVector* vector,
 static void TestCode(const uint16_t* data, const char* expected) {
   ArenaPool pool;
   ArenaAllocator allocator(&pool);
-  HGraphBuilder builder(&allocator);
+  HGraph* graph = new (&allocator) HGraph(&allocator);
+  HGraphBuilder builder(graph);
   const DexFile::CodeItem* item = reinterpret_cast<const DexFile::CodeItem*>(data);
-  HGraph* graph = builder.BuildGraph(*item);
-  ASSERT_NE(graph, nullptr);
+  bool graph_built = builder.BuildGraph(*item);
+  ASSERT_TRUE(graph_built);
   graph->TryBuildingSsa();
   // `Inline` conditions into ifs.
   PrepareForRegisterAllocation(graph).Run();