1 files changed, 32 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/uninit-8.c b/gcc/testsuite/gcc.dg/uninit-8.c
new file mode 100644
index 00000000000..94117da37c9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/uninit-8.c
@@ -0,0 +1,32 @@
+/* Uninitialized variable warning tests...
+   Inspired by part of optabs.c:expand_binop.
+   May be the same as uninit-1.c.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O -Wuninitialized" } */
+
+#include <limits.h>
+
+void
+add_bignums (int *out, int *x, int *y)
+{
+    int p, sum;
+    int carry; /* { dg-bogus "carry" "uninitialized variable warning" { xfail *-*-* } } */
+
+    p = 0;
+    for (; *x; x++, y++, out++, p++)
+    {
+	if (p)
+	    sum = *x + *y + carry;
+	else
+	    sum = *x + *y;
+
+	if (sum < 0)
+	{
+	    carry = 1;
+	    sum -= INT_MAX;
+	}
+	else
+	    carry = 0;
+    }
+}