diff options
| -rw-r--r-- | vespamalloc/src/vespamalloc/malloc/common.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/vespamalloc/src/vespamalloc/malloc/common.h b/vespamalloc/src/vespamalloc/malloc/common.h index 96dd1869a43..5041b545b4d 100644 --- a/vespamalloc/src/vespamalloc/malloc/common.h +++ b/vespamalloc/src/vespamalloc/malloc/common.h @@ -57,9 +57,7 @@ typedef int SizeClassT; inline int msbIdx(uint64_t v) { - int64_t result; - __asm __volatile("bsrq %0,%0" : "=r" (result) : "0" (v)); - return result; + return v ? 63 - __builtin_clzl(v) : 0; } template <size_t MinClassSizeC> |