Add a PassScope for PrepareForRegisterAllocation

This pass does transform the graph so make it part of cfg-dumping.

Change-Id: I42e361382c85c97b974faad8bb0fcf2cb0750355

1 files changed, 5 insertions, 1 deletions

diff --git a/compiler/optimizing/optimizing_compiler.cc b/compiler/optimizing/optimizing_compiler.cc
index 13d6d620f8..c1b4d2403d 100644
--- a/compiler/optimizing/optimizing_compiler.cc
+++ b/compiler/optimizing/optimizing_compiler.cc
@@ -483,7 +483,11 @@ NO_INLINE  // Avoid increasing caller's frame size by large stack-allocated obje
 static void AllocateRegisters(HGraph* graph,
                               CodeGenerator* codegen,
                               PassObserver* pass_observer) {
-  PrepareForRegisterAllocation(graph).Run();
+  {
+    PassScope scope(PrepareForRegisterAllocation::kPrepareForRegisterAllocationPassName,
+                    pass_observer);
+    PrepareForRegisterAllocation(graph).Run();
+  }
   SsaLivenessAnalysis liveness(graph, codegen);
   {
     PassScope scope(SsaLivenessAnalysis::kLivenessPassName, pass_observer);