Use local labels in assembly functions.
Fixes crash on launch when compiled with Xcode 16 on macOS 15.
https://github.com/php/php-src/issues/16168#issuecomment-2404792553
--- a/Zend/zend_string.c.orig	2023-08-03 12:13:08.000000000 -0500
+++ b/Zend/zend_string.c	2024-10-10 19:05:53.000000000 -0500
@@ -328,32 +328,32 @@
 ZEND_API zend_bool ZEND_FASTCALL zend_string_equal_val(zend_string *s1, zend_string *s2)
 {
 	char *ptr = ZSTR_VAL(s1);
-	size_t delta = (char*)s2 - (char*)s1;
+	uintptr_t delta = (uintptr_t) s2 - (uintptr_t) s1;
 	size_t len = ZSTR_LEN(s1);
 	zend_ulong ret;
 
 	__asm__ (
-		".LL0%=:\n\t"
+		"0:\n\t"
 		"movl (%2,%3), %0\n\t"
 		"xorl (%2), %0\n\t"
-		"jne .LL1%=\n\t"
+		"jne 1f\n\t"
 		"addl $0x4, %2\n\t"
 		"subl $0x4, %1\n\t"
-		"ja .LL0%=\n\t"
+		"ja 0b\n\t"
 		"movl $0x1, %0\n\t"
-		"jmp .LL3%=\n\t"
-		".LL1%=:\n\t"
+		"jmp 3f\n\t"
+		"1:\n\t"
 		"cmpl $0x4,%1\n\t"
-		"jb .LL2%=\n\t"
+		"jb 2f\n\t"
 		"xorl %0, %0\n\t"
-		"jmp .LL3%=\n\t"
-		".LL2%=:\n\t"
+		"jmp 3f\n\t"
+		"2:\n\t"
 		"negl %1\n\t"
 		"lea 0x20(,%1,8), %1\n\t"
 		"shll %b1, %0\n\t"
 		"sete %b0\n\t"
 		"movzbl %b0, %0\n\t"
-		".LL3%=:\n"
+		"3:\n"
 		: "=&a"(ret),
 		  "+c"(len),
 		  "+r"(ptr)
@@ -396,32 +396,32 @@
 ZEND_API zend_bool ZEND_FASTCALL zend_string_equal_val(zend_string *s1, zend_string *s2)
 {
 	char *ptr = ZSTR_VAL(s1);
-	size_t delta = (char*)s2 - (char*)s1;
+	uintptr_t delta = (uintptr_t) s2 - (uintptr_t) s1;
 	size_t len = ZSTR_LEN(s1);
 	zend_ulong ret;
 
 	__asm__ (
-		".LL0%=:\n\t"
+		"0:\n\t"
 		"movq (%2,%3), %0\n\t"
 		"xorq (%2), %0\n\t"
-		"jne .LL1%=\n\t"
+		"jne 1f\n\t"
 		"addq $0x8, %2\n\t"
 		"subq $0x8, %1\n\t"
-		"ja .LL0%=\n\t"
+		"ja 0b\n\t"
 		"movq $0x1, %0\n\t"
-		"jmp .LL3%=\n\t"
-		".LL1%=:\n\t"
+		"jmp 3f\n\t"
+		"1:\n\t"
 		"cmpq $0x8,%1\n\t"
-		"jb .LL2%=\n\t"
+		"jb 2f\n\t"
 		"xorq %0, %0\n\t"
-		"jmp .LL3%=\n\t"
-		".LL2%=:\n\t"
+		"jmp 3f\n\t"
+		"2:\n\t"
 		"negq %1\n\t"
 		"lea 0x40(,%1,8), %1\n\t"
 		"shlq %b1, %0\n\t"
 		"sete %b0\n\t"
 		"movzbq %b0, %0\n\t"
-		".LL3%=:\n"
+		"3:\n"
 		: "=&a"(ret),
 		  "+c"(len),
 		  "+r"(ptr)