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8055816: Remove dead code in g1BlockOffsetTable

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Reviewed-by: tschatzl, mgerdin
This commit is contained in:
Bengt Rutisson 2014-08-27 10:51:08 +02:00
parent 9086b5795f
commit bbe82cb85b
5 changed files with 13 additions and 374 deletions
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23
hotspot/src/share/vm/gc_implementation/g1/heapRegion.cpp
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@ -322,29 +322,6 @@ bool HeapRegion::claimHeapRegion(jint claimValue) {
return false;
}
HeapWord* HeapRegion::next_block_start_careful(HeapWord* addr) {
HeapWord* low = addr;
HeapWord* high = end();
while (low < high) {
size_t diff = pointer_delta(high, low);
// Must add one below to bias toward the high amount. Otherwise, if
// "high" were at the desired value, and "low" were one less, we
// would not converge on "high". This is not symmetric, because
// we set "high" to a block start, which might be the right one,
// which we don't do for "low".
HeapWord* middle = low + (diff+1)/2;
if (middle == high) return high;
HeapWord* mid_bs = block_start_careful(middle);
if (mid_bs < addr) {
low = middle;
} else {
high = mid_bs;
}
}
assert(low == high && low >= addr, "Didn't work.");
return low;
}
HeapRegion::HeapRegion(uint hrm_index,
G1BlockOffsetSharedArray* sharedOffsetArray,
MemRegion mr) :