1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/20061109-2.c b/gcc/testsuite/gcc.dg/20061109-2.c
new file mode 100644
index 000000000..30be434d5
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/20061109-2.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O1" } */
+
+/* This assignment might be implemented with a mem copy from the
+   literal pool with two BLKmode operands.  This produced an ICE on S/390
+   since simplify_subreg was called for such a BLKmode operand.  */
+
+struct a
+{
+  unsigned long b:24;
+};
+
+void
+foo (struct a *t)
+{
+  t->b = 32;
+}