Hi!
Like for x86-64, alpha or rs6000, m32r seems to be affected too.
Just visually checked differences in c23-stdarg-9.c assembly in a cross
without/with the patch, committed to trunk.
2024-03-20 Jakub Jelinek <ja...@redhat.com>
PR target/114175
* config/m32r/m32r.cc (m32r_setup_incoming_varargs): Only skip
function arg advance for TYPE_NO_NAMED_ARGS_STDARG_P functions
if arg.type is NULL.
--- gcc/config/m32r/m32r.cc.jj 2024-01-03 11:51:50.204472028 +0100
+++ gcc/config/m32r/m32r.cc 2024-03-20 16:12:15.841512952 +0100
@@ -1287,7 +1287,8 @@ m32r_setup_incoming_varargs (cumulative_
if (!TYPE_NO_NAMED_ARGS_STDARG_P (TREE_TYPE (current_function_decl)))
gcc_assert (arg.mode != BLKmode);
- if (!TYPE_NO_NAMED_ARGS_STDARG_P (TREE_TYPE (current_function_decl)))
+ if (!TYPE_NO_NAMED_ARGS_STDARG_P (TREE_TYPE (current_function_decl))
+ || arg.type != NULL_TREE)
first_anon_arg = (ROUND_ADVANCE_CUM (*get_cumulative_args (cum),
arg.mode, arg.type)
+ ROUND_ADVANCE_ARG (arg.mode, arg.type));
Jakub
