Reviewers: jarin, Yang,

Description:
Do not scavenge while marking incrementally when FLAG_gc_global is on.

BUG=

Please review this at https://codereview.chromium.org/281573002/

SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge

Affected files (+1, -1 lines):
  M src/heap.cc


Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index 219584b2c41db96c94666c15bf5b6372d5ece376..ddec9a9f8dd0c7bceebe2b17305d84de20a34cdd 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -790,7 +790,7 @@ bool Heap::CollectGarbage(GarbageCollector collector,
     const intptr_t kStepSizeWhenDelayedByScavenge = 1 * MB;
     incremental_marking()->Step(kStepSizeWhenDelayedByScavenge,
                                 IncrementalMarking::NO_GC_VIA_STACK_GUARD);
-    if (!incremental_marking()->IsComplete()) {
+    if (!incremental_marking()->IsComplete() && !FLAG_gc_global) {
       if (FLAG_trace_incremental_marking) {
         PrintF("[IncrementalMarking] Delaying MarkSweep.\n");
       }


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