1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/torture/pr42898.c b/gcc/testsuite/gcc.dg/torture/pr42898.c
new file mode 100644
index 000000000..df8b46a62
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr42898.c
@@ -0,0 +1,23 @@
+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-optimized" } */
+
+struct hardware {
+  int parm1:8;
+  int :4;
+  int parm2:4;
+  int parm3:15;
+  int parm4:1;
+};
+
+void f1(volatile struct hardware *ptr)
+{
+  *ptr=(struct hardware) {
+    .parm1=42,
+    .parm2=13,
+    .parm3=11850,
+    .parm4=1,
+  };
+}
+
+/* { dg-final { scan-tree-dump-times "\\*ptr" 1 "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */