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8282620: G1/Parallel: Constify is_in_young() predicates

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Reviewed-by: iwalulya, ayang
This commit is contained in:
Thomas Schatzl 2022-03-07 13:52:19 +00:00
parent 894ffb098c
commit 6fc73f709b
4 changed files with 4 additions and 5 deletions
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2
src/hotspot/share/gc/g1/g1CollectedHeap.hpp
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@ -1179,7 +1179,7 @@ public:
size_t max_tlab_size() const override; size_t max_tlab_size() const override;
size_t unsafe_max_tlab_alloc(Thread* ignored) const override; size_t unsafe_max_tlab_alloc(Thread* ignored) const override;
inline bool is_in_young(const oop obj); inline bool is_in_young(const oop obj) const;
// Returns "true" iff the given word_size is "very large". // Returns "true" iff the given word_size is "very large".
static bool is_humongous(size_t word_size) { static bool is_humongous(size_t word_size) {

2
src/hotspot/share/gc/g1/g1CollectedHeap.inline.hpp
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@ -208,7 +208,7 @@ void G1CollectedHeap::register_optional_region_with_region_attr(HeapRegion* r) {
_region_attr.set_optional(r->hrm_index(), r->rem_set()->is_tracked()); _region_attr.set_optional(r->hrm_index(), r->rem_set()->is_tracked());
} }
inline bool G1CollectedHeap::is_in_young(const oop obj) { inline bool G1CollectedHeap::is_in_young(const oop obj) const {
if (obj == NULL) { if (obj == NULL) {
return false; return false;
} }

3
src/hotspot/share/gc/parallel/parallelScavengeHeap.hpp
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@ -184,8 +184,7 @@ class ParallelScavengeHeap : public CollectedHeap {
bool is_in_reserved(const void* p) const; bool is_in_reserved(const void* p) const;
bool is_in_young(oop p); // reserved part bool is_in_young(const oop p) const;
bool is_in_old(oop p); // reserved part
MemRegion reserved_region() const { return _reserved; } MemRegion reserved_region() const { return _reserved; }
HeapWord* base() const { return _reserved.start(); } HeapWord* base() const { return _reserved.start(); }

2
src/hotspot/share/gc/parallel/parallelScavengeHeap.inline.hpp
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@ -43,7 +43,7 @@ inline void ParallelScavengeHeap::invoke_scavenge() {
PSScavenge::invoke(); PSScavenge::invoke();
} }
inline bool ParallelScavengeHeap::is_in_young(oop p) { inline bool ParallelScavengeHeap::is_in_young(const oop p) const {
// Assumes the the old gen address range is lower than that of the young gen. // Assumes the the old gen address range is lower than that of the young gen.
bool result = cast_from_oop<HeapWord*>(p) >= young_gen()->reserved().start(); bool result = cast_from_oop<HeapWord*>(p) >= young_gen()->reserved().start();
assert(result == young_gen()->is_in_reserved(p), assert(result == young_gen()->is_in_reserved(p),