1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr39666-1.c b/gcc/testsuite/gcc.dg/pr39666-1.c
new file mode 100644
index 000000000..f1ba499c3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr39666-1.c
@@ -0,0 +1,22 @@
+/* PR middle-end/39666 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -Wuninitialized" } */
+
+int
+foo (int i)
+{
+  int j;
+  switch (i)
+    {
+    case -__INT_MAX__ - 1 ... -1:
+      j = 6;
+      break;
+    case 0:
+      j = 5;
+      break;
+    case 1 ... __INT_MAX__:
+      j = 4;
+      break;
+    }
+  return j;
+}