Hi!
Like for x86-64, alpha or rs6000, csky 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/csky/csky.cc (csky_setup_incoming_varargs): Only skip
csky_function_arg_advance for TYPE_NO_NAMED_ARGS_STDARG_P functions
if arg.type is NULL.
--- gcc/config/csky/csky.cc.jj 2024-01-03 11:51:47.818505143 +0100
+++ gcc/config/csky/csky.cc 2024-03-20 16:09:23.765822660 +0100
@@ -2090,7 +2090,8 @@ csky_setup_incoming_varargs (cumulative_
cfun->machine->uses_anonymous_args = 1;
local_cum = *pcum;
- 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)
csky_function_arg_advance (local_cum_v, arg);
regs_to_push = CSKY_NPARM_REGS - local_cum.reg;
if (regs_to_push)
Jakub
