Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2017-05-05 Richard Biener <rguent...@suse.de>
* tree-ssa-pre.c (get_or_alloc_expr_for): Simplify.
Index: gcc/tree-ssa-pre.c
===================================================================
--- gcc/tree-ssa-pre.c (revision 247577)
+++ gcc/tree-ssa-pre.c (working copy)
@@ -1173,31 +1173,7 @@ get_or_alloc_expr_for (tree t)
return get_or_alloc_expr_for_name (t);
else if (is_gimple_min_invariant (t))
return get_or_alloc_expr_for_constant (t);
- else
- {
- /* More complex expressions can result from SCCVN expression
- simplification that inserts values for them. As they all
- do not have VOPs the get handled by the nary ops struct. */
- vn_nary_op_t result;
- unsigned int result_id;
- vn_nary_op_lookup (t, &result);
- if (result != NULL)
- {
- pre_expr e = pre_expr_pool.allocate ();
- e->kind = NARY;
- PRE_EXPR_NARY (e) = result;
- result_id = lookup_expression_id (e);
- if (result_id != 0)
- {
- pre_expr_pool.remove (e);
- e = expression_for_id (result_id);
- return e;
- }
- alloc_expression_id (e);
- return e;
- }
- }
- return NULL;
+ gcc_unreachable ();
}
/* Return the folded version of T if T, when folded, is a gimple
