Cheri-research/snmalloc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Explicitly compute the size of two pointers

Browse Source 
Don't use bits::is64() when setting MIN_ALLOC_BITS
This commit is contained in:
Nathaniel Filardo
2019-11-26 18:02:59 +00:00
parent f70191fb1e
commit d13d810b66
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/mem/allocconfig.h
View File

@@ -110,8 +110,9 @@ namespace snmalloc
#endif
// Minimum allocation size is space for two pointers.
static constexpr size_t MIN_ALLOC_BITS = bits::is64() ? 4 : 3;
static constexpr size_t MIN_ALLOC_SIZE = 1 << MIN_ALLOC_BITS;
static_assert(bits::next_pow2_const(sizeof(void*)) == sizeof(void*));
static constexpr size_t MIN_ALLOC_SIZE = 2 * sizeof(void*);
static constexpr size_t MIN_ALLOC_BITS = bits::ctz_const(MIN_ALLOC_SIZE);
// Slabs are 64 KiB unless constrained to 16 KiB.
static constexpr size_t SLAB_BITS = ADDRESS_SPACE_CONSTRAINED ? 14 : 16;