1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr37186.c b/gcc/testsuite/gcc.dg/pr37186.c
new file mode 100644
index 000000000..bf37757f8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr37186.c
@@ -0,0 +1,9 @@
+/* PR 37186 */
+/* { dg-do compile } */
+/* { dg-options "-Wall -Werror -Wno-error=pointer-sign" } */
+
+int foo(signed char *); /* { dg-message "note: expected 'signed char \\*' but argument is of type 'unsigned char \\*'" } */
+int bar(unsigned char *p)
+{
+  return foo(p); /* { dg-warning "pointer targets in passing argument 1 of 'foo' differ in signedness" } */
+}