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8014339: Improve assert and remove some dead code from parMarkBitMap.hpp/cpp

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Reviewed-by: stefank, tschatzl
This commit is contained in:
Bengt Rutisson 2013-05-13 14:09:05 +02:00
parent 9cfde1acc3
commit d3a0a48fbb
4 changed files with 12 additions and 138 deletions
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33
hotspot/src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.cpp
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@ -24,7 +24,6 @@
#include "precompiled.hpp"
#include "gc_implementation/parallelScavenge/parMarkBitMap.hpp"
#include "gc_implementation/parallelScavenge/parMarkBitMap.inline.hpp"
#include "gc_implementation/parallelScavenge/psParallelCompact.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/os.hpp"
@ -108,31 +107,6 @@ ParMarkBitMap::mark_obj(HeapWord* addr, size_t size)
return false;
}
size_t
ParMarkBitMap::live_words_in_range(HeapWord* beg_addr, HeapWord* end_addr) const
{
assert(beg_addr <= end_addr, "bad range");
idx_t live_bits = 0;
// The bitmap routines require the right boundary to be word-aligned.
const idx_t end_bit = addr_to_bit(end_addr);
const idx_t range_end = BitMap::word_align_up(end_bit);
idx_t beg_bit = find_obj_beg(addr_to_bit(beg_addr), range_end);
while (beg_bit < end_bit) {
idx_t tmp_end = find_obj_end(beg_bit, range_end);
if (tmp_end < end_bit) {
live_bits += tmp_end - beg_bit + 1;
beg_bit = find_obj_beg(tmp_end + 1, range_end);
} else {
live_bits += end_bit - beg_bit; // No + 1 here; end_bit is not counted.
return bits_to_words(live_bits);
}
}
return bits_to_words(live_bits);
}
size_t ParMarkBitMap::live_words_in_range(HeapWord* beg_addr, oop end_obj) const
{
assert(beg_addr <= (HeapWord*)end_obj, "bad range");
@ -244,13 +218,6 @@ ParMarkBitMap::iterate(ParMarkBitMapClosure* live_closure,
return complete;
}
#ifndef PRODUCT
void ParMarkBitMap::reset_counters()
{
_cas_tries = _cas_retries = _cas_by_another = 0;
}
#endif // #ifndef PRODUCT
#ifdef ASSERT
void ParMarkBitMap::verify_clear() const
{