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src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp

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@@ -44,10 +44,11 @@
 #include "gc/shenandoah/shenandoahFreeSet.hpp"
 #include "gc/shenandoah/shenandoahPhaseTimings.hpp"
 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
 #include "gc/shenandoah/shenandoahHeapRegion.hpp"
 #include "gc/shenandoah/shenandoahHeapRegionSet.hpp"
+#include "gc/shenandoah/shenandoahIUMode.hpp"
 #include "gc/shenandoah/shenandoahMarkCompact.hpp"
 #include "gc/shenandoah/shenandoahMarkingContext.inline.hpp"
 #include "gc/shenandoah/shenandoahMemoryPool.hpp"
 #include "gc/shenandoah/shenandoahMetrics.hpp"
 #include "gc/shenandoah/shenandoahMonitoringSupport.hpp"

@@ -369,11 +370,10 @@
   }
 
   _traversal_gc = strcmp(ShenandoahGCMode, "traversal") == 0 ?
                   new ShenandoahTraversalGC(this) :
                   NULL;
-
   _control_thread = new ShenandoahControlThread();
 
   log_info(gc, init)("Initialize Shenandoah heap: " SIZE_FORMAT "%s initial, " SIZE_FORMAT "%s min, " SIZE_FORMAT "%s max",
                      byte_size_in_proper_unit(_initial_size),  proper_unit_for_byte_size(_initial_size),
                      byte_size_in_proper_unit(_minimum_size),  proper_unit_for_byte_size(_minimum_size),

@@ -391,10 +391,12 @@
   if (ShenandoahGCMode != NULL) {
     if (strcmp(ShenandoahGCMode, "traversal") == 0) {
       _gc_mode = new ShenandoahTraversalMode();
     } else if (strcmp(ShenandoahGCMode, "normal") == 0) {
       _gc_mode = new ShenandoahNormalMode();
+    } else if (strcmp(ShenandoahGCMode, "iu") == 0) {
+      _gc_mode = new ShenandoahIUMode();
     } else if (strcmp(ShenandoahGCMode, "passive") == 0) {
       _gc_mode = new ShenandoahPassiveMode();
     } else {
       vm_exit_during_initialization("Unknown -XX:ShenandoahGCMode option");
     }
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