Mon, 08 Dec 2014 18:57:33 +0100
8067655: Clean up G1 remembered set oop iteration
Summary: Pass on the static type G1ParPushHeapRSClosure to allow oop_iterate devirtualization
Reviewed-by: jmasa, kbarrett
1 /*
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25 #include "precompiled.hpp"
26 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
27 #include "gc_implementation/g1/g1OopClosures.inline.hpp"
28 #include "gc_implementation/g1/g1ParScanThreadState.hpp"
30 G1ParCopyHelper::G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) :
31 G1ParClosureSuper(g1, par_scan_state), _scanned_klass(NULL),
32 _cm(_g1->concurrent_mark()) {}
34 G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1) :
35 _g1(g1), _par_scan_state(NULL), _worker_id(UINT_MAX) { }
37 G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) :
38 _g1(g1), _par_scan_state(NULL),
39 _worker_id(UINT_MAX) {
40 set_par_scan_thread_state(par_scan_state);
41 }
43 void G1ParClosureSuper::set_par_scan_thread_state(G1ParScanThreadState* par_scan_state) {
44 assert(_par_scan_state == NULL, "_par_scan_state must only be set once");
45 assert(par_scan_state != NULL, "Must set par_scan_state to non-NULL.");
47 _par_scan_state = par_scan_state;
48 _worker_id = par_scan_state->queue_num();
50 assert(_worker_id < MAX2((uint)ParallelGCThreads, 1u),
51 err_msg("The given worker id %u must be less than the number of threads %u", _worker_id, MAX2((uint)ParallelGCThreads, 1u)));
52 }