In-heap small typed arrays

src/flag-definitions.h

Index: src/flag-definitions.h
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index e7da42e6e0b7573162c9688270c5e7b97839e1e0..abffe17257434e57186be19b66216c596ce17a73 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -355,6 +355,9 @@ DEFINE_bool(omit_map_checks_for_leaf_maps, true,
             "do not emit check maps for constant values that have a leaf map, "
             "deoptimize the optimized code if the layout of the maps changes.")
 
+DEFINE_int(typed_array_in_heap_threshold, 64,
+    "threshold for in-heap typed array")

[mvstanton, 2014/03/03 10:37:49]

how about typed_array_max_size_in_heap. 

Also, could you relate this constant to the max object size in the heap with
ASSERTS somewhere appropriate? Obviously, 64 bytes is very small compared to max
object size in new space, but an assert would offer long-lasting protection.

[Dmitry Lomov (no reviews), 2014/03/10 09:20:35]

Done.

+
 // Profiler flags.
 DEFINE_int(frame_count, 1, "number of stack frames inspected by the profiler")
            // 0x1800 fits in the immediate field of an ARM instruction.