Revision: 10031
Author: [email protected]
Date: Fri Nov 18 06:08:57 2011
Log: Add flag --collect-megamorphic-maps-from-stub-cache to help
diagnose a
memory leak.
Review URL: http://codereview.chromium.org/8599006
http://code.google.com/p/v8/source/detail?r=10031
Modified:
/branches/bleeding_edge/src/flag-definitions.h
/branches/bleeding_edge/src/type-info.cc
=======================================
--- /branches/bleeding_edge/src/flag-definitions.h Tue Nov 1 05:20:46 2011
+++ /branches/bleeding_edge/src/flag-definitions.h Fri Nov 18 06:08:57 2011
@@ -128,6 +128,9 @@
DEFINE_bool(limit_inlining, true, "limit code size growth from inlining")
DEFINE_bool(eliminate_empty_blocks, true, "eliminate empty blocks")
DEFINE_bool(loop_invariant_code_motion, true, "loop invariant code motion")
+DEFINE_bool(collect_megamorphic_maps_from_stub_cache,
+ true,
+ "crankshaft harvests type feedback from stub cache")
DEFINE_bool(hydrogen_stats, false, "print statistics for hydrogen")
DEFINE_bool(trace_hydrogen, false, "trace generated hydrogen to file")
DEFINE_bool(trace_inlining, false, "trace inlining decisions")
=======================================
--- /branches/bleeding_edge/src/type-info.cc Thu Nov 17 05:57:55 2011
+++ /branches/bleeding_edge/src/type-info.cc Fri Nov 18 06:08:57 2011
@@ -419,7 +419,8 @@
ASSERT(Handle<Code>::cast(object)->ic_state() == MEGAMORPHIC);
} else if (object->IsMap()) {
types->Add(Handle<Map>::cast(object));
- } else if (Handle<Code>::cast(object)->ic_state() == MEGAMORPHIC) {
+ } else if (FLAG_collect_megamorphic_maps_from_stub_cache &&
+ Handle<Code>::cast(object)->ic_state() == MEGAMORPHIC) {
types->Reserve(4);
ASSERT(object->IsCode());
isolate_->stub_cache()->CollectMatchingMaps(types, *name, flags);
--
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