1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 0e89481..56e6c26 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -558,6 +558,9 @@ get_memory_rtx (exp)
     return mem;
 
   set_mem_attributes (mem, exp, 0);
+
+  /* memcpy, memset and other builtin stringops can alias with anything. */
+  MEM_ALIAS_SET (mem) = 0;
   return mem;
 }