1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/warn/compare1.C b/gcc/testsuite/g++.dg/warn/compare1.C
new file mode 100644
index 000000000..e00592262
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/compare1.C
@@ -0,0 +1,10 @@
+/* -Wall is supposed to trigger -Wsign-compare for C++.  PR 10604.
+   See also gcc.dg/compare7.c.  */
+
+/* { dg-do compile } */
+/* { dg-options "-Wall" } */
+
+int f(unsigned a, int b)
+{
+  return a < b;  /* { dg-warning "signed and unsigned" } */
+}