1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/init/bitfield2.C b/gcc/testsuite/g++.dg/init/bitfield2.C
new file mode 100644
index 00000000000..e54b2e423fb
--- /dev/null
+++ b/gcc/testsuite/g++.dg/init/bitfield2.C
@@ -0,0 +1,33 @@
+// PR c++/13371
+// Bug: We were failing to properly protect the lhs on the line marked
+// "here" from multiple evaluation.
+
+// { dg-do run }
+
+extern "C" int printf (const char *, ...);
+
+enum E { E1, E2 };
+
+struct A
+{
+  E e : 8;
+  unsigned char c;
+};
+
+A ar[2];
+
+int c;
+
+int f()
+{
+  ++c;
+  printf ("f()\n");
+  return 0;
+}
+
+int main()
+{
+  ar[0].c = 0xff;
+  ar[f()].e = E1;		// here
+  return (c != 1 || ar[0].c != 0xff);
+}