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8255847: Shenandoah: Shenandoah should not mark through weak roots

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Reviewed-by: rkennke
This commit is contained in:
Zhengyu Gu 2020-11-05 15:29:11 +00:00
parent 867a484df1
commit 31918c55f3
3 changed files with 0 additions and 11 deletions
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1
src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.hpp
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@ -200,7 +200,6 @@ private:
ShenandoahVMRoots<CONCURRENT> _vm_roots;
ShenandoahClassLoaderDataRoots<CONCURRENT, false /* single-threaded*/>
_cld_roots;
ShenandoahConcurrentStringDedupRoots _dedup_roots;
ShenandoahNMethodTableSnapshot* _codecache_snapshot;
ShenandoahPhaseTimings::Phase _phase;

3
src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.inline.hpp
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@ -149,7 +149,6 @@ ShenandoahConcurrentRootScanner<CONCURRENT>::ShenandoahConcurrentRootScanner(uin
ShenandoahPhaseTimings::Phase phase) :
_vm_roots(phase),
_cld_roots(phase, n_workers),
_dedup_roots(phase),
_codecache_snapshot(NULL),
_phase(phase) {
if (!ShenandoahHeap::heap()->unload_classes()) {
@ -180,9 +179,7 @@ void ShenandoahConcurrentRootScanner<CONCURRENT>::oops_do(OopClosure* oops, uint
_vm_roots.oops_do(oops, worker_id);
if (!heap->unload_classes()) {
AlwaysTrueClosure always_true;
_cld_roots.cld_do(&clds_cl, worker_id);
_dedup_roots.oops_do(&always_true, oops, worker_id);
ShenandoahWorkerTimingsTracker timer(_phase, ShenandoahPhaseTimings::CodeCacheRoots, worker_id);
CodeBlobToOopClosure blobs(oops, !CodeBlobToOopClosure::FixRelocations);
_codecache_snapshot->parallel_blobs_do(&blobs);

7
src/hotspot/share/gc/shenandoah/shenandoahRootVerifier.cpp
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@ -136,13 +136,6 @@ void ShenandoahRootVerifier::roots_do(OopClosure* oops) {
JNIHandles::oops_do(oops);
Universe::vm_global()->oops_do(oops);
AlwaysTrueClosure always_true;
WeakProcessor::weak_oops_do(&always_true, oops);
if (ShenandoahStringDedup::is_enabled()) {
ShenandoahStringDedup::oops_do_slow(oops);
}
// Do thread roots the last. This allows verification code to find
// any broken objects from those special roots first, not the accidental
// dangling reference from the thread root.