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8247740: Inline derived CollectedHeap access for G1 and ParallelGC

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Added shared helper in CollectedHeap, and inlined for G1 and ParallelGC

Reviewed-by: stefank, pliden
This commit is contained in:
Kim Barrett 2020-06-23 05:58:52 -04:00
parent e3eb38f4d2
commit f8596b57f3
9 changed files with 28 additions and 34 deletions
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15
src/hotspot/share/gc/shared/collectedHeap.hpp
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@ -29,6 +29,7 @@
#include "gc/shared/gcWhen.hpp"
#include "gc/shared/verifyOption.hpp"
#include "memory/allocation.hpp"
#include "memory/universe.hpp"
#include "runtime/handles.hpp"
#include "runtime/perfData.hpp"
#include "runtime/safepoint.hpp"
@ -177,6 +178,20 @@ class CollectedHeap : public CHeapObj<mtInternal> {
Shenandoah
};
protected:
// Get a pointer to the derived heap object. Used to implement
// derived class heap() functions rather than being called directly.
template<typename T>
static T* named_heap(Name kind) {
CollectedHeap* heap = Universe::heap();
assert(heap != NULL, "Uninitialized heap");
assert(kind == heap->kind(), "Heap kind %u should be %u",
static_cast<uint>(heap->kind()), static_cast<uint>(kind));
return static_cast<T*>(heap);
}
public:
static inline size_t filler_array_max_size() {
return _filler_array_max_size;
}