Fixed possible misalignment in 32-bit build.

Author: dstogov

ext/opcache/ZendAccelerator.c

@@ -1289,6 +1289,10 @@ static zend_persistent_script *store_script_in_file_cache(zend_persistent_script
 	/* Align to 64-byte boundary */
 	ZCG(mem) = zend_arena_alloc(&CG(arena), memory_used + 64);
 	ZCG(mem) = (void*)(((zend_uintptr_t)ZCG(mem) + 63L) & ~63L);
+#elif ZEND_MM_ALIGNMENT < 8
+	/* Align to 8-byte boundary */
+	ZCG(mem) = zend_arena_alloc(&CG(arena), memory_used + 8);
+	ZCG(mem) = (void*)(((zend_uintptr_t)ZCG(mem) + 7L) & ~7L);
 #else
 	ZCG(mem) = zend_arena_alloc(&CG(arena), memory_used);
 #endif