1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr42728.c b/gcc/testsuite/gcc.dg/pr42728.c
new file mode 100644
index 000000000..7b2fbb690
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr42728.c
@@ -0,0 +1,11 @@
+/* PR debug/42728 */
+/* { dg-do compile } */
+/* { dg-options "-O1 -fcompare-debug" } */
+
+void
+foo (char *a)
+{
+  char *b;
+  for (; *a; a++)
+    a = b++;
+}