From 13c781f04df4c3ee4e57ff96df67e5868ffdadb8 Mon Sep 17 00:00:00 2001
From: Niels Dossche <7771979+nielsdos@users.noreply.github.com>
Date: Mon, 21 Jul 2025 22:15:23 +0200
Subject: [PATCH] Add missing cc clobber

Closes GH-19205.
---
 Zend/zend_multiply.h | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Zend/zend_multiply.h b/Zend/zend_multiply.h
index a99e858bd77..b3f0086009f 100644
--- a/Zend/zend_multiply.h
+++ b/Zend/zend_multiply.h
@@ -176,13 +176,15 @@ static zend_always_inline size_t zend_safe_address(size_t nmemb, size_t size, si
 		__asm__ ("mull %3\n\tadcl $0,%1"
 	     : "=&a"(res), "=&d" (m_overflow)
 	     : "%0"(res),
-	       "rm"(size));
+	       "rm"(size)
+	     : "cc");
 	} else {
 		__asm__ ("mull %3\n\taddl %4,%0\n\tadcl $0,%1"
 	     : "=&a"(res), "=&d" (m_overflow)
 	     : "%0"(res),
 	       "rm"(size),
-	       "rm"(offset));
+	       "rm"(offset)
+	     : "cc");
 	}
 
 	if (UNEXPECTED(m_overflow)) {
@@ -211,7 +213,8 @@ static zend_always_inline size_t zend_safe_address(size_t nmemb, size_t size, si
 			"adc $0,%1"
 			: "=&a"(res), "=&d" (m_overflow)
 			: "%0"(res),
-			  "rm"(size));
+			  "rm"(size)
+			: "cc");
 	} else {
 		__asm__ ("mul" LP_SUFF  " %3\n\t"
 			"add %4,%0\n\t"
@@ -219,7 +222,8 @@ static zend_always_inline size_t zend_safe_address(size_t nmemb, size_t size, si
 			: "=&a"(res), "=&d" (m_overflow)
 			: "%0"(res),
 			  "rm"(size),
-			  "rm"(offset));
+			  "rm"(offset)
+			: "cc");
 	}
 #undef LP_SUFF
 	if (UNEXPECTED(m_overflow)) {