From a7d397bf6fa23c5d88bf0dbb32ce8247831c3bf4 Mon Sep 17 00:00:00 2001 From: Alexandre Oliva Date: Thu, 29 Dec 2022 14:32:54 -0300 Subject: [PATCH] tree-inline decl_map: skip mapping result's NULL default def If a result doesn't have a default def, don't attempt to remap it. for gcc/ChangeLog * tree-inline.cc (declare_return_variable): Don't remap NULL default def of result. --- gcc/tree-inline.cc | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/gcc/tree-inline.cc b/gcc/tree-inline.cc index bfea1cc11822..4556256dc32b 100644 --- a/gcc/tree-inline.cc +++ b/gcc/tree-inline.cc @@ -3851,10 +3851,11 @@ declare_return_variable (copy_body_data *id, tree return_slot, tree modify_dest, it's default_def SSA_NAME. */ if (gimple_in_ssa_p (id->src_cfun) && is_gimple_reg (result)) - { - temp = make_ssa_name (temp); - insert_decl_map (id, ssa_default_def (id->src_cfun, result), temp); - } + if (tree default_def = ssa_default_def (id->src_cfun, result)) + { + temp = make_ssa_name (temp); + insert_decl_map (id, default_def, temp); + } insert_init_stmt (id, entry_bb, gimple_build_assign (temp, var)); } else -- 2.47.2