From: Jakub Jelinek <jakub@redhat.com>
Date: Wed, 20 Mar 2024 15:59:32 +0000 (+0100)
Subject: ft32: Fix up ft32_setup_incoming_varargs [PR114175]
X-Git-Tag: basepoints/gcc-15~564
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=22612a8b5e0853c530f98fc7c0d6f6812b36518d;p=thirdparty%2Fgcc.git

ft32: Fix up ft32_setup_incoming_varargs [PR114175]

Like for x86-64, alpha or rs6000, ft32 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  <jakub@redhat.com>

	PR target/114175
	* config/ft32/ft32.cc (ft32_setup_incoming_varargs): Only skip
	function arg advance for TYPE_NO_NAMED_ARGS_STDARG_P functions
	if arg.type is NULL.
---

diff --git a/gcc/config/ft32/ft32.cc b/gcc/config/ft32/ft32.cc
index 36d3dcfd7b52..3c6e5fb1f6ca 100644
--- a/gcc/config/ft32/ft32.cc
+++ b/gcc/config/ft32/ft32.cc
@@ -635,9 +635,10 @@ ft32_setup_incoming_varargs (cumulative_args_t cum_v,
 {
   CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v);
   int named_size = 0;
-  if (!TYPE_NO_NAMED_ARGS_STDARG_P (TREE_TYPE (current_function_decl)))
-    named_size =
-      GET_MODE_SIZE (SImode) * (*cum - FT32_R0) + GET_MODE_SIZE (arg.mode);
+  if (!TYPE_NO_NAMED_ARGS_STDARG_P (TREE_TYPE (current_function_decl))
+      || arg.type != NULL_TREE)
+    named_size
+      = GET_MODE_SIZE (SImode) * (*cum - FT32_R0) + GET_MODE_SIZE (arg.mode);
 
   if (named_size < 24)
     *pretend_size = 24 - named_size;