diff --git a/compiler-rt/lib/builtins/clear_cache.c b/compiler-rt/lib/builtins/clear_cache.c
--- a/compiler-rt/lib/builtins/clear_cache.c
+++ b/compiler-rt/lib/builtins/clear_cache.c
@@ -126,6 +126,7 @@
          addr += icache_line_size)
       __asm __volatile("ic ivau, %0" ::"r"(addr));
   }
+  __asm __volatile("dsb ish");
   __asm __volatile("isb sy");
 #elif defined(__powerpc64__)
   const size_t line_size = 32;