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tsan: improve memory allocator a bit 

llvm-svn: 162561
This commit is contained in:
Dmitry Vyukov 2012-08-24 15:53:14 +00:00
parent ab24b6e24e
commit 7d3d94454c
1 changed files with 9 additions and 5 deletions
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14
compiler-rt/lib/sanitizer_common/sanitizer_allocator64.h
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@ -147,11 +147,15 @@ class SizeClassAllocator64 {
PopulateFreeList(class_id, region);
}
CHECK(!region->free_list.empty());
const uptr count = SizeClassMap::MaxCached(class_id);
for (uptr i = 0; i < count && !region->free_list.empty(); i++) {
AllocatorListNode *node = region->free_list.front();
region->free_list.pop_front();
free_list->push_front(node);
uptr count = SizeClassMap::MaxCached(class_id);
if (region->free_list.size() <= count) {
free_list->append_front(&region->free_list);
} else {
for (uptr i = 0; i < count; i++) {
AllocatorListNode *node = region->free_list.front();
region->free_list.pop_front();
free_list->push_front(node);
}
}
CHECK(!free_list->empty());
}