7110718: -XX:MarkSweepAlwaysCompactCount=0 crashes the JVM
Summary: Interpret MarkSweepAlwaysCompactCount < 1 as never do full compaction
Reviewed-by: ysr, tonyp, jmasa, johnc
/*
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#include "precompiled.hpp"
#include "gc_interface/collectedHeap.hpp"
#include "memory/barrierSet.inline.hpp"
#include "memory/universe.hpp"
// count is number of array elements being written
void BarrierSet::static_write_ref_array_pre(HeapWord* start, size_t count) {
assert(count <= (size_t)max_intx, "count too large");
#if 0
warning("Pre: \t" INTPTR_FORMAT "[" SIZE_FORMAT "]\t",
start, count);
#endif
if (UseCompressedOops) {
Universe::heap()->barrier_set()->write_ref_array_pre((narrowOop*)start, (int)count, false);
} else {
Universe::heap()->barrier_set()->write_ref_array_pre( (oop*)start, (int)count, false);
}
}
// count is number of array elements being written
void BarrierSet::static_write_ref_array_post(HeapWord* start, size_t count) {
// simply delegate to instance method
Universe::heap()->barrier_set()->write_ref_array(start, count);
}