src/share/vm/gc_implementation/parallelScavenge/objectStartArray.hpp
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*** 118,128 ****
void reset();
MemRegion covered_region() { return _covered_region; }
void allocate_block(HeapWord* p) {
! assert(_covered_region.contains(p), "Must be in covered region");
jbyte* block = block_for_addr(p);
HeapWord* block_base = addr_for_block(block);
size_t offset = pointer_delta(p, block_base, sizeof(HeapWord*));
assert(offset < 128, "Sanity");
// When doing MT offsets, we can't assert this.
--- 118,130 ----
void reset();
MemRegion covered_region() { return _covered_region; }
void allocate_block(HeapWord* p) {
! assert(_covered_region.contains(p),
! err_msg("p (" PTR_FORMAT ") is not in covered region [" PTR_FORMAT ", " PTR_FORMAT ")",
! p2i(p), p2i(_covered_region.start()), p2i(_covered_region.end())));
jbyte* block = block_for_addr(p);
HeapWord* block_base = addr_for_block(block);
size_t offset = pointer_delta(p, block_base, sizeof(HeapWord*));
assert(offset < 128, "Sanity");
// When doing MT offsets, we can't assert this.
*** 133,143 ****
// Optimized for finding the first object that crosses into
// a given block. The blocks contain the offset of the last
// object in that block. Scroll backwards by one, and the first
// object hit should be at the beginning of the block
HeapWord* object_start(HeapWord* addr) const {
! assert(_covered_region.contains(addr), "Must be in covered region");
jbyte* block = block_for_addr(addr);
HeapWord* scroll_forward = offset_addr_for_block(block--);
while (scroll_forward > addr) {
scroll_forward = offset_addr_for_block(block--);
}
--- 135,147 ----
// Optimized for finding the first object that crosses into
// a given block. The blocks contain the offset of the last
// object in that block. Scroll backwards by one, and the first
// object hit should be at the beginning of the block
HeapWord* object_start(HeapWord* addr) const {
! assert(_covered_region.contains(addr),
! err_msg("addr (" PTR_FORMAT ") is not in covered region [" PTR_FORMAT ", " PTR_FORMAT ")",
! p2i(addr), p2i(_covered_region.start()), p2i(_covered_region.end())));
jbyte* block = block_for_addr(addr);
HeapWord* scroll_forward = offset_addr_for_block(block--);
while (scroll_forward > addr) {
scroll_forward = offset_addr_for_block(block--);
}
*** 151,161 ****
assert(addr <= next, "wrong order for arg and next");
return scroll_forward;
}
bool is_block_allocated(HeapWord* addr) {
! assert(_covered_region.contains(addr), "Must be in covered region");
jbyte* block = block_for_addr(addr);
if (*block == clean_block)
return false;
return true;
--- 155,167 ----
assert(addr <= next, "wrong order for arg and next");
return scroll_forward;
}
bool is_block_allocated(HeapWord* addr) {
! assert(_covered_region.contains(addr),
! err_msg("addr (" PTR_FORMAT ") is not in covered region [" PTR_FORMAT ", " PTR_FORMAT ")",
! p2i(addr), p2i(_covered_region.start()), p2i(_covered_region.end())));
jbyte* block = block_for_addr(addr);
if (*block == clean_block)
return false;
return true;