Mercurial > hg > graal-jvmci-8
diff src/share/vm/gc_implementation/g1/g1RemSet.inline.hpp @ 20335:eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
Reviewed-by: tschatzl, jmasa
author | brutisso |
---|---|
date | Tue, 19 Aug 2014 12:39:06 +0200 |
parents | b0c374311c4e |
children | 6948da6d7c13 |
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--- a/src/share/vm/gc_implementation/g1/g1RemSet.inline.hpp Tue Apr 01 07:46:51 2014 +0200 +++ b/src/share/vm/gc_implementation/g1/g1RemSet.inline.hpp Tue Aug 19 12:39:06 2014 +0200 @@ -46,26 +46,28 @@ template <class T> inline void G1RemSet::par_write_ref(HeapRegion* from, T* p, int tid) { oop obj = oopDesc::load_decode_heap_oop(p); + if (obj == NULL) { + return; + } + #ifdef ASSERT // can't do because of races // assert(obj == NULL || obj->is_oop(), "expected an oop"); // Do the safe subset of is_oop - if (obj != NULL) { #ifdef CHECK_UNHANDLED_OOPS - oopDesc* o = obj.obj(); + oopDesc* o = obj.obj(); #else - oopDesc* o = obj; + oopDesc* o = obj; #endif // CHECK_UNHANDLED_OOPS - assert((intptr_t)o % MinObjAlignmentInBytes == 0, "not oop aligned"); - assert(Universe::heap()->is_in_reserved(obj), "must be in heap"); - } + assert((intptr_t)o % MinObjAlignmentInBytes == 0, "not oop aligned"); + assert(Universe::heap()->is_in_reserved(obj), "must be in heap"); #endif // ASSERT assert(from == NULL || from->is_in_reserved(p), "p is not in from"); HeapRegion* to = _g1->heap_region_containing(obj); - if (to != NULL && from != to) { + if (from != to) { assert(to->rem_set() != NULL, "Need per-region 'into' remsets."); to->rem_set()->add_reference(p, tid); }