From 3d4298697b41231690f93590e99f599b964f6a0d Mon Sep 17 00:00:00 2001
From: Nikita Popov <nikita.ppv@gmail.com>
Date: Wed, 19 Jun 2019 12:47:56 +0200
Subject: Fix shift UB in constants

We were shifting out the top bit of a signed integer.
---
 Zend/zend_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Zend/zend_alloc.c')

diff --git a/Zend/zend_alloc.c b/Zend/zend_alloc.c
index 9c081477d0..93660e1cdc 100644
--- a/Zend/zend_alloc.c
+++ b/Zend/zend_alloc.c
@@ -591,7 +591,7 @@ static zend_always_inline void zend_mm_bitset_reset_range(zend_mm_bitset *bitset
 
 		if (pos != end) {
 			/* reset bits from "bit" to ZEND_MM_BITSET_LEN-1 */
-			tmp = ~((Z_L(1) << bit) - 1);
+			tmp = ~((Z_UL(1) << bit) - 1);
 			bitset[pos++] &= ~tmp;
 			while (pos != end) {
 				/* set all bits */
-- 
cgit v1.2.1