--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/pr80463.c	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,54 @@
+/* { dg-do compile { target powerpc*-*-* ia64-*-* i?86-*-* x86_64-*-* } } */
+/* { dg-options "-g -O2 -fvar-tracking-assignments -fselective-scheduling2 -ftree-loop-vectorize -fnon-call-exceptions -fno-tree-vrp -fno-gcse-lm -fno-tree-loop-im -fno-reorder-blocks-and-partition -fno-reorder-blocks -fno-move-loop-invariants -w" } */
+
+short int t2;
+int cd, aa, ft;
+
+void
+dh (void)
+{
+  int qs = 0;
+
+  if (t2 < 1)
+    {
+      int bq = 0;
+
+      while (bq < 1)
+        {
+        }
+
+      while (t2 < 1)
+        {
+          if (t2 == 0)
+            {
+              bq = 0;
+              cd = !!cd;
+            }
+          else
+            {
+              bq = 1;
+              cd = bq > qs;
+            }
+
+          t2 += cd;
+          bq = (t2 / qs) == bq;
+
+          if (aa != ft)
+            {
+              qs %= 0;
+              while (bq != 0)
+                {
+ ro:
+                  ;
+                }
+            }
+
+          ++t2;
+        }
+
+ ia:
+      goto ro;
+    }
+
+  goto ia;
+}