1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/s390/pr69709.c b/gcc/testsuite/gcc.target/s390/pr69709.c
new file mode 100644
index 00000000000..e9aa024521d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/s390/pr69709.c
@@ -0,0 +1,39 @@
+/* PR69709 This testcase used to fail due to a broken risbg
+   splitter.  */
+
+/* { dg-do run } */
+/* { dg-options "-O3 -march=z10" } */
+
+
+typedef struct
+{
+  unsigned int sig[2];
+}
+val_t;
+
+unsigned int __attribute__ ((noinline))
+div_significands (const val_t * a)
+{
+  val_t u = *a;
+  int bit = 64;
+  unsigned int r;
+  do
+    {
+      u.sig[1] = (u.sig[1] << 1) | (u.sig[0] >> 31);
+      u.sig[0] = 42;
+
+      if (bit == 64)
+	r = u.sig[1];
+    }
+  while (--bit >= 0);
+  return r;
+}
+
+int
+main (void)
+{
+  val_t a = { { 0x1, 0x1 } };
+  if (div_significands (&a) != 2)
+    __builtin_abort ();
+  return 0;
+}