make the return value more logic

as if clz() were returning 32 on empty size

1 files changed, 1 insertions, 1 deletions

diff --git a/Zend/zend_alloc.c b/Zend/zend_alloc.c
index 77a825115f..ac403617a6 100644
--- a/Zend/zend_alloc.c
+++ b/Zend/zend_alloc.c
@@ -1054,7 +1054,7 @@ static zend_always_inline int zend_mm_small_size_to_bit(int size)
 
 	if (!BitScanReverse(&index, (unsigned long)size)) {
 		/* undefined behavior */
-		return 32;
+		return 64;
 	}
 
 	return (((31 - (int)index) ^ 0x1f) + 1);