[Bug middle-end/113228] [14 Regression] ICE: recalculate_side_effects, at gimplify.cc:3347

["pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113228

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
What match is doing is correct, what reassoc is doing looks to be ok, but the
gimplifier just falls over on `SSA_NAME != 0`.

This fixes the ICE but I don't understand how the gimplifier was handling
SSA_NAME before if it ever was, the code mentioned here has not changed since
the tuples was merged in:
```
diff --git a/gcc/gimplify.cc b/gcc/gimplify.cc
index 15b540646c2..0cbe159b383 100644
--- a/gcc/gimplify.cc
+++ b/gcc/gimplify.cc
@@ -3304,6 +3304,9 @@ recalculate_side_effects (tree t)
   int len = TREE_OPERAND_LENGTH (t);
   int i;

+  if (code == SSA_NAME)
+    return;
+
   switch (TREE_CODE_CLASS (code))
     {
     case tcc_expression:
@@ -18253,7 +18256,7 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p,
gimple_seq *post_p,
        case SSA_NAME:
          /* Allow callbacks into the gimplifier during optimization.  */
          ret = GS_ALL_DONE;
-         break;
+         goto dont_recalculate;

        case OMP_PARALLEL:
          gimplify_omp_parallel (expr_p, pre_p);

```