[turbofan] basic block profiler

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index 31d53e44ee327680c41de747d84fadfc4f65e150..c9c5c24d743637edcd98dca73aad35929e1662d2 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -6,6 +6,7 @@
 
 #include "src/base/platform/elapsed-timer.h"
 #include "src/compiler/ast-graph-builder.h"
+#include "src/compiler/basic-block-profiler.h"
 #include "src/compiler/change-lowering.h"
 #include "src/compiler/code-generator.h"
 #include "src/compiler/graph-replay.h"
@@ -302,6 +303,8 @@ Handle<Code> Pipeline::GenerateCode() {
       VerifyAndPrintGraph(&graph, "Lowered generic");
     }
 
+    source_positions.RemoveDecorator();
+
     {
       // Compute a schedule.
       Schedule* schedule = ComputeSchedule(&graph);
@@ -368,6 +371,12 @@ Handle<Code> Pipeline::GenerateCode(Linkage* linkage, Graph* graph,
   DCHECK_NOT_NULL(schedule);
   CHECK(SupportedBackend());
 
+  BasicBlockProfiler::Data* profiler_data = NULL;
+  if (FLAG_turbo_profiling) {
+    profiler_data = info_->isolate()->GetBasicBlockProfiler()->Profile(
+        info_, graph, schedule);
+  }
+
   InstructionSequence sequence(linkage, graph, schedule);
 
   // Select and schedule instructions covering the scheduled graph.
@@ -404,7 +413,11 @@ Handle<Code> Pipeline::GenerateCode(Linkage* linkage, Graph* graph,
 
   // Generate native sequence.
   CodeGenerator generator(&sequence);
-  return generator.GenerateCode();
+  Handle<Code> code = generator.GenerateCode();
+  if (profiler_data != NULL) {
+    profiler_data->SetCode(code);
+  }
+  return code;
 }