1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/torture/pr28045.c b/gcc/testsuite/gcc.dg/torture/pr28045.c
new file mode 100644
index 000000000..f2d16646c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr28045.c
@@ -0,0 +1,22 @@
+/* { dg-do run } */
+
+extern void abort(void);
+struct a
+{
+   unsigned int bits : 1;
+   signed long val : ((sizeof(long) * 8) - 1);
+};
+int Fnegate (struct a b)
+{
+  if ((-((long)b.val)) <= ((long) ((1UL << ((sizeof(long) * 8) - 2)) -1UL))
+      && (-((long)b.val)) >= (-(((long) ((1UL << ((sizeof(long) * 8) - 2)) -1UL))) - 1))
+     return 0 ;
+  abort ();
+}
+int main ()
+{
+  struct a b = {1, 1};
+  Fnegate (b);
+  return 0;
+}
+