stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

8263964: Redundant check in ObjectStartArray::object_starts_in_range

Browse Source 
Reviewed-by: sjohanss, tschatzl
This commit is contained in:
Albert Mingkun Yang 2021-03-23 13:40:48 +00:00
parent bd7a184b98
commit e9321cdc41
2 changed files with 2 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/hotspot/share/gc/parallel/objectStartArray.cpp
View File

@ -129,9 +129,6 @@ bool ObjectStartArray::object_starts_in_range(HeapWord* start_addr,
assert(start_addr <= end_addr,
"Range is wrong. start_addr (" PTR_FORMAT ") is after end_addr (" PTR_FORMAT ")",
p2i(start_addr), p2i(end_addr));
if (start_addr > end_addr) {
return false;
}
jbyte* start_block = block_for_addr(start_addr);
jbyte* end_block = block_for_addr(end_addr);

5
src/hotspot/share/gc/parallel/objectStartArray.hpp
View File

@ -144,10 +144,7 @@ class ObjectStartArray : public CHeapObj<mtGC> {
bool is_block_allocated(HeapWord* addr) {
assert_covered_region_contains(addr);
jbyte* block = block_for_addr(addr);
if (*block == clean_block)
return false;
return true;
return *block != clean_block;
}
// Return true if an object starts in the range of heap addresses.