--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr93582-3.c	Mon May 25 07:50:57 2020 +0900
@@ -0,0 +1,18 @@
+/* PR tree-optimization/93582 */
+/* { dg-do compile { target int32 } } */
+/* { dg-options "-O2 -fdump-tree-fre1" } */
+/* { dg-final { scan-tree-dump "return 1;" "fre1" { target be } } } */
+/* { dg-final { scan-tree-dump "return 2;" "fre1" { target le } } } */
+
+union U {
+  struct S { int a : 1, b : 14, c : 17; } s;
+  struct T { int d : 10; int e : 4; int f : 18; } t;
+};
+
+int
+foo (void)
+{
+  union U u;
+  u.s.b = -7005;
+  return u.t.e;
+}