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consolidate bit scan operations

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This commit is contained in:
daan 2020-09-08 09:27:57 -07:00
parent c7272afa9a
commit 30b993ecf3
4 changed files with 113 additions and 96 deletions
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2
src/os.c
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@ -358,7 +358,7 @@ static void* mi_unix_mmap(void* addr, size_t size, size_t try_alignment, int pro
int fd = -1;
#if defined(MAP_ALIGNED) // BSD
if (try_alignment > 0) {
size_t n = _mi_bsr(try_alignment);
size_t n = mi_bsr(try_alignment);
if (((size_t)1 << n) == try_alignment && n >= 12 && n <= 30) { // alignment is a power of 2 and 4096 <= alignment <= 1GiB
flags |= MAP_ALIGNED(n);
}