[Bug middle-end/108657] [13 Regression] csmith: possible wrong checksum with -O3 and -ftrivial-auto-var-init=zero

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108657

--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Looking at the r13-1778 change, perhaps it wasn't intended that it changed
behavior for all internal functions that return non-SSA_NAME result.
--- gcc/tree-ssa-dse.cc.jj      2023-01-11 10:29:08.651161134 +0100
+++ gcc/tree-ssa-dse.cc 2023-02-15 20:03:33.647684713 +0100
@@ -177,7 +177,7 @@ initialize_ao_ref_for_dse (gimple *stmt,
        default:;
        }
     }
-  else if (tree lhs = gimple_get_lhs (stmt))
+  if (tree lhs = gimple_get_lhs (stmt))
     {
       if (TREE_CODE (lhs) != SSA_NAME)
        {
fixes this.