1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-21.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-21.c
new file mode 100644
index 000000000..aadf32e21
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-21.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-fre" } */
+
+struct f {
+  float a;
+  float b;
+  float c;
+  float d;
+};
+
+struct f a;
+
+void h(float, float, float, float);
+
+void g(void)
+{
+  float a1 = a.a, b = a.b, c = a.c, d = a.d;
+  a.a = a1;
+  a.b = b;
+  a.c = c;
+  a.d = d;
+  h(a1, b, c, d);
+}
+
+/* { dg-final { scan-tree-dump-not "a\\\.? = " "fre" } } */
+/* { dg-final { cleanup-tree-dump "fre" } } */