Handle dereferencing needs to be allowed for printing during optimization phase.

BUG=

Review URL: https://codereview.chromium.org/12391031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13789 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index a65ce61..79a1008 100644 (file)
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -10810,6 +10810,7 @@ void HPhase::End() const {
   // phase name matches the command line parameter FLAG_trace_phase.
   if (FLAG_trace_hydrogen &&
       OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL) {
+    AllowHandleDereference allow_handle_deref(graph_->isolate());
     if (graph_ != NULL) HTracer::Instance()->TraceHydrogen(name_, graph_);
     if (chunk_ != NULL) HTracer::Instance()->TraceLithium(name_, chunk_);
     if (allocator_ != NULL) {