--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.c-torture/compile/pr83051.c	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,31 @@
+
+int a[1], b, c, d, e, f, g, h;
+
+void fn1 (int p)
+{ 
+  b = b >> 8 ^ a[b ^ (c & 5)] >> 8 ^ a[(b ^ c) & 5];
+  b = b >> 8 ^ a[(b ^ c) & 5];
+}
+
+static void fn2 ()
+{ 
+  int k;
+  while (1)
+    while (e)
+      { 
+        while (g)
+          while (h)
+            for (k = 0; k < 6; k++)
+              while (f)
+                fn1 (0);
+        fn1 (0);
+        fn1 (0);
+        fn1 (0);
+      }
+}
+
+int main ()
+{ 
+  fn2 ();
+  return 0;
+}