[heap] Move to page lookups for SemiSpace, NewSpace, and Heap containment methods

src/frames.cc

Index: src/frames.cc
diff --git a/src/frames.cc b/src/frames.cc
index a57d28bde6c454562dd07e2df0ca6095a36c9940..fa5c6b1aa02b75e0c8eeda5165b5ae2381585773 100644
--- a/src/frames.cc
+++ b/src/frames.cc
@@ -1517,7 +1517,7 @@ Code* InnerPointerToCodeCache::GcSafeFindCodeForInnerPointer(
     Address inner_pointer) {
   Heap* heap = isolate_->heap();
   if (!heap->code_space()->Contains(inner_pointer) &&
-      !heap->lo_space()->Contains(inner_pointer)) {
+      !heap->lo_space()->ContainsSlow(inner_pointer)) {

[ulan, 2016/02/09 13:36:50]

We check the large space again below, so here we could avoid ContainsSlow by
moving the if statement after the large space check.

[Hannes Payer (out of office), 2016/02/09 14:40:22]

+1

[Michael Lippautz, 2016/02/09 14:50:28]

Done.

[Michael Lippautz, 2016/02/09 14:50:28]

Done.

     return nullptr;
   }