[Bug middle-end/67512] [5/6 Regression] internal compiler error: in invert_tree_comparison, at fold-const.c:2456

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67512

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
--- a/gcc/tree-ssa-uninit.c
+++ b/gcc/tree-ssa-uninit.c
@@ -1296,7 +1296,8 @@ pred_equal_p (pred_info x1, pred_info x2)
     return false;

   c1 = x1.cond_code;
-  if (x1.invert != x2.invert)
+  if (x1.invert != x2.invert
+      && TREE_CODE_CLASS (x2.cond_code) == tcc_comparison)
     c2 = invert_tree_comparison (x2.cond_code, false);
   else
     c2 = x2.cond_code;

should be enough though I'd like to know what exactly 'invert' in pred_info
means.