1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp21.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp21.c
new file mode 100644
index 000000000..9a4e4e783
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp21.c
@@ -0,0 +1,27 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -ftree-vrp -fdump-tree-vrp1" } */
+/* { dg-require-effective-target int32plus } */
+
+extern void link_error ();
+
+void test01(unsigned int a, unsigned int b)
+{
+  unsigned int x = 0x80000000;
+  if (a < x)
+    if (b < x)
+      if (a > 5)
+        if (a + b == 0U)
+          link_error ();
+}
+
+void test02(unsigned int a, unsigned int b)
+{
+  unsigned int x = 0x80000000;
+  if (a > x)
+    if (b < x)
+      if (a - b == 1U)
+        link_error ();
+}
+
+/* { dg-final { scan-tree-dump-times "link_error" 0 "vrp1" } } */
+/* { dg-final { cleanup-tree-dump "vrp1" } } */