https://gcc.gnu.org/g:91092c30eda6777e33705a66a2c3049d4a18569d
commit r13-8517-g91092c30eda6777e33705a66a2c3049d4a18569d
Author: Jakub Jelinek <ja...@redhat.com>
Date: Wed Mar 20 16:59:56 2024 +0100
nds32: Fix up nds32_setup_incoming_varargs [PR114175]
Like for x86-64, alpha or rs6000, nds32 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/nds32/nds32.cc (nds32_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 b22a9c7dd29a14a217de8b86d3e100e4e8b7785e)
Diff:
---
gcc/config/nds32/nds32.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/config/nds32/nds32.cc b/gcc/config/nds32/nds32.cc
index 91ed91d914f..1f41bf81ad8 100644
--- a/gcc/config/nds32/nds32.cc
+++ b/gcc/config/nds32/nds32.cc
@@ -2377,7 +2377,8 @@ nds32_setup_incoming_varargs (cumulative_args_t ca,
for varargs. */
total_args_regs
= NDS32_MAX_GPR_REGS_FOR_ARGS + NDS32_GPR_ARG_FIRST_REGNUM;
- 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)
num_of_used_regs
= NDS32_AVAILABLE_REGNUM_FOR_GPR_ARG (cum->gpr_offset, arg.mode,
arg.type)
+ NDS32_NEED_N_REGS_FOR_ARG (arg.mode, arg.type);
