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8148951: Remove unused method Generation::performs_in_place_marking()

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Reviewed-by: david, jwilhelm
This commit is contained in:
Bengt Rutisson 2016-02-03 18:21:43 +01:00
parent 5f51924702
commit 433bc5e2bc
3 changed files with 0 additions and 13 deletions
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3
hotspot/src/share/vm/gc/serial/defNewGeneration.hpp
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@ -285,9 +285,6 @@ protected:
// Save the tops for eden, from, and to
virtual void record_spaces_top();
// Doesn't require additional work during GC prologue and epilogue
virtual bool performs_in_place_marking() const { return false; }
// Accessing marks
void save_marks();
void reset_saved_marks();

3
hotspot/src/share/vm/gc/shared/genCollectedHeap.cpp
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@ -458,7 +458,6 @@ void GenCollectedHeap::do_collection(bool full,
prepared_for_verification = true;
}
assert(!_young_gen->performs_in_place_marking(), "No young generation do in place marking");
collect_generation(_young_gen,
full,
size,
@ -489,8 +488,6 @@ void GenCollectedHeap::do_collection(bool full,
prepare_for_verify();
}
assert(_old_gen->performs_in_place_marking(), "All old generations do in place marking");
if (do_young_collection) {
// We did a young GC. Need a new GC id for the old GC.
GCIdMarkAndRestore gc_id_mark;

7
hotspot/src/share/vm/gc/shared/generation.hpp
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@ -309,13 +309,6 @@ class Generation: public CHeapObj<mtGC> {
// do nothing.
virtual void par_oop_since_save_marks_iterate_done(int thread_num) {}
// This generation does in-place marking, meaning that mark words
// are mutated during the marking phase and presumably reinitialized
// to a canonical value after the GC. This is currently used by the
// biased locking implementation to determine whether additional
// work is required during the GC prologue and epilogue.
virtual bool performs_in_place_marking() const { return true; }
// Returns "true" iff collect() should subsequently be called on this
// this generation. See comment below.
// This is a generic implementation which can be overridden.