[PATCH] c++: static lambda tsubst [PR108526]

[Jason Merrill <jason@redhat.com>]

Tested x86_64-pc-linux-gnu, applying to trunk.

-- 8< --

A missed piece of the patch for static operator(): in tsubst_function_decl,
we don't want to replace the first parameter with a new closure pointer if
operator() is static.

	PR c++/108526
	PR c++/106651

gcc/cp/ChangeLog:

	* pt.cc (tsubst_function_decl): Don't replace the closure
	parameter if DECL_STATIC_FUNCTION_P.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp23/static-operator-call5.C: Pass -g.
---
 gcc/cp/pt.cc                                       | 4 ++--
 gcc/testsuite/g++.dg/cpp23/static-operator-call5.C | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc
index 85136df1730..aafc99d12c3 100644
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -14393,12 +14393,12 @@ tsubst_function_decl (tree t, tree args, tsubst_flags_t complain,
     DECL_NAME (r) = make_conv_op_name (TREE_TYPE (type));
 
   tree parms = DECL_ARGUMENTS (t);
-  if (closure)
+  if (closure && !DECL_STATIC_FUNCTION_P (t))
     parms = DECL_CHAIN (parms);
   parms = tsubst (parms, args, complain, t);
   for (tree parm = parms; parm; parm = DECL_CHAIN (parm))
     DECL_CONTEXT (parm) = r;
-  if (closure)
+  if (closure && !DECL_STATIC_FUNCTION_P (t))
     {
       tree tparm = build_this_parm (r, closure, type_memfn_quals (type));
       DECL_NAME (tparm) = closure_identifier;
diff --git a/gcc/testsuite/g++.dg/cpp23/static-operator-call5.C b/gcc/testsuite/g++.dg/cpp23/static-operator-call5.C
index ae022d0b971..f7ce8c03008 100644
--- a/gcc/testsuite/g++.dg/cpp23/static-operator-call5.C
+++ b/gcc/testsuite/g++.dg/cpp23/static-operator-call5.C
@@ -1,5 +1,6 @@
 // PR c++/108526
 // { dg-do compile { target c++23 } }
+// { dg-additional-options -g } PR108706
 
 template<class> void f()
 {

base-commit: 247cacc9e381d666a492dfa4ed61b7b19e2d008f
-- 
2.31.1