https://gcc.gnu.org/g:f3af5a241c820e564ef13614ae0ea7a57237bd50
commit r13-8516-gf3af5a241c820e564ef13614ae0ea7a57237bd50
Author: Jakub Jelinek <ja...@redhat.com>
Date: Wed Mar 20 16:59:43 2024 +0100
m32r: Fix up m32r_setup_incoming_varargs [PR114175]
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.
(cherry picked from commit 921eb457c5b105bcd84eaeac22067e9b03d5b9d1)
Diff:
---
gcc/config/m32r/m32r.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/config/m32r/m32r.cc b/gcc/config/m32r/m32r.cc
index 5a788e29515..f4ef594499b 100644
--- a/gcc/config/m32r/m32r.cc
+++ b/gcc/config/m32r/m32r.cc
@@ -1290,7 +1290,8 @@ m32r_setup_incoming_varargs (cumulative_args_t cum,
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));
