[C++] Protect call to copy_attributes_to_builtin (PR91505)

[thirdparty/gcc.git] / gcc / tree-ssa-threadedge.c

diff --git a/gcc/tree-ssa-threadedge.c b/gcc/tree-ssa-threadedge.c
index 785227df690f3dddc1788b6fcdd53bd621410d15..1776a6d9ab4b601f4cdfb0e7a348a290ef768a47 100644 (file)
--- a/gcc/tree-ssa-threadedge.c
+++ b/gcc/tree-ssa-threadedge.c
@@ -183,7 +183,7 @@ record_temporary_equivalences_from_phis (edge e,
          else if (TREE_CODE (src) == INTEGER_CST)
            new_vr->set (src);
          else
-           new_vr->set_varying ();
+           new_vr->set_varying (TREE_TYPE (src));
 
          /* This is a temporary range for DST, so push it.  */
          evrp_range_analyzer->push_value_range (dst, new_vr);
@@ -331,6 +331,7 @@ record_temporary_equivalences_from_stmts_at_dest (edge e,
        {
          tree fndecl = gimple_call_fndecl (stmt);
          if (fndecl
+             && fndecl_built_in_p (fndecl, BUILT_IN_NORMAL)
              && (DECL_FUNCTION_CODE (fndecl) == BUILT_IN_OBJECT_SIZE
                  || DECL_FUNCTION_CODE (fndecl) == BUILT_IN_CONSTANT_P))
            continue;
@@ -1361,7 +1362,6 @@ thread_across_edge (gcond *dummy_cond,
 
         x = new jump_thread_edge (taken_edge, EDGE_COPY_SRC_JOINER_BLOCK);
        path->safe_push (x);
-       found = false;
        found = thread_around_empty_blocks (taken_edge,
                                            dummy_cond,
                                            avail_exprs_stack,