Parallelize marking phase of mark-sweep/compact collection cycle.

src/arm/assembler-arm-inl.h

Index: src/arm/assembler-arm-inl.h
diff --git a/src/arm/assembler-arm-inl.h b/src/arm/assembler-arm-inl.h
index f72ad76abe869c00b4a0a102a5d4e00ff2042d38..fad0a8c7458a7f67787e1c3537606c169492a48b 100644
--- a/src/arm/assembler-arm-inl.h
+++ b/src/arm/assembler-arm-inl.h
@@ -213,6 +213,29 @@ void RelocInfo::Visit() {
 }
 
 
+template<typename StaticVisitor, typename Data>
+void RelocInfo::Visit(Data data) {
+  RelocInfo::Mode mode = rmode();
+  if (mode == RelocInfo::EMBEDDED_OBJECT) {
+    StaticVisitor::VisitPointer(target_object_address(), data);
+  } else if (RelocInfo::IsCodeTarget(mode)) {
+    StaticVisitor::VisitCodeTarget(this, data);
+  } else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
+    StaticVisitor::VisitExternalReference(target_reference_address(), data);
+#ifdef ENABLE_DEBUGGER_SUPPORT
+  } else if (Debug::has_break_points() &&
+             ((RelocInfo::IsJSReturn(mode) &&
+              IsPatchedReturnSequence()) ||
+             (RelocInfo::IsDebugBreakSlot(mode) &&
+              IsPatchedDebugBreakSlotSequence()))) {
+    StaticVisitor::VisitDebugTarget(this, data);
+#endif
+  } else if (mode == RelocInfo::RUNTIME_ENTRY) {
+    StaticVisitor::VisitRuntimeEntry(this, data);
+  }
+}
+
+
 Operand::Operand(int32_t immediate, RelocInfo::Mode rmode)  {
   rm_ = no_reg;
   imm32_ = immediate;