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8262885: Shenandoah: FullGC prologue does not need to save/restore heap has_forwarded_object flag

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Reviewed-by: shade
This commit is contained in:
Zhengyu Gu 2021-03-03 17:26:38 +00:00
parent 1d2c1e6289
commit 2d2ef08c0f
1 changed files with 3 additions and 4 deletions
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src/hotspot/share/gc/shenandoah/shenandoahFullGC.cpp
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@ -179,15 +179,14 @@ void ShenandoahFullGC::do_it(GCCause::Cause gc_cause) {
ShenandoahReferenceProcessor* rp = heap->ref_processor(); ShenandoahReferenceProcessor* rp = heap->ref_processor();
rp->abandon_partial_discovery(); rp->abandon_partial_discovery();
// f. Set back forwarded objects bit back, in case some steps above dropped it. // f. Sync pinned region status from the CP marks
heap->set_has_forwarded_objects(has_forwarded_objects);
// g. Sync pinned region status from the CP marks
heap->sync_pinned_region_status(); heap->sync_pinned_region_status();
// The rest of prologue: // The rest of prologue:
BiasedLocking::preserve_marks(); BiasedLocking::preserve_marks();
_preserved_marks->init(heap->workers()->active_workers()); _preserved_marks->init(heap->workers()->active_workers());
assert(heap->has_forwarded_objects() == has_forwarded_objects, "This should not change");
} }
if (UseTLAB) { if (UseTLAB) {