[{"id":3683457,"web_url":"http://patchwork.ozlabs.org/comment/3683457/","msgid":"","list_archive_url":null,"date":"2026-04-28T13:27:20","subject":"Re: [PATCH] c++/reflection: improve diagnostic for dependent splices","submitter":{"id":14370,"url":"http://patchwork.ozlabs.org/api/people/14370/","name":"Marek Polacek","email":"polacek@redhat.com"},"content":"Ping.\n\nOn Mon, Apr 20, 2026 at 01:08:59PM -0400, Marek Polacek wrote:\n> Tested dg.exp on x86_64-pc-linux-gnu, ok for trunk?\n> \n> -- >8 --\n> In the parser we've changed the \"not usable in a splice\" error messages\n> to the more helpful \"expected a reflection of ...\", but tsubst_splice_scope\n> still uses the former. This patch updates the diagnostic there as well.\n> Let's also teach inform_tree_category about concepts and alias templates\n> now that a testcase exercises them.\n> \n> gcc/cp/ChangeLog:\n> \n> \t* error.cc (inform_tree_category): Also print concept and alias\n> \ttemplate.\n> \t* pt.cc (tsubst_splice_scope): Reword the diagnostic messages.\n> \tCall inform_tree_category.\n> \n> gcc/testsuite/ChangeLog:\n> \n> \t* g++.dg/reflect/ns5.C: Adjust expected diagnostics.\n> \t* g++.dg/reflect/type9.C: Likewise.\n> ---\n> gcc/cp/error.cc | 4 +++\n> gcc/cp/pt.cc | 16 ++++++----\n> gcc/testsuite/g++.dg/reflect/ns5.C | 41 ++++++++++++++++++--------\n> gcc/testsuite/g++.dg/reflect/type9.C | 44 +++++++++++++++++++---------\n> 4 files changed, 72 insertions(+), 33 deletions(-)\n> \n> diff --git a/gcc/cp/error.cc b/gcc/cp/error.cc\n> index e7121dc1017..2ea9d1a7bcd 100644\n> --- a/gcc/cp/error.cc\n> +++ b/gcc/cp/error.cc\n> @@ -4013,12 +4013,16 @@ inform_tree_category (tree t)\n> inform (loc, \"but %qE is a function template\", t);\n> else if (DECL_CLASS_TEMPLATE_P (t))\n> inform (loc, \"but %qE is a class template\", t);\n> + else if (DECL_ALIAS_TEMPLATE_P (t))\n> + inform (loc, \"but %qE is an alias template\", t);\n> else if (variable_template_p (t))\n> inform (loc, \"but %qE is a variable template\", t);\n> else if (TREE_CODE (t) == NAMESPACE_DECL)\n> inform (loc, \"but %qE is a namespace\", t);\n> else if (TREE_CODE (t) == CONST_DECL && !DECL_TEMPLATE_PARM_P (t))\n> inform (loc, \"but %qE is an enumerator\", t);\n> + else if (concept_definition_p (t))\n> + inform (loc, \"but %qE is a concept\", t);\n> }\n> \n> /* Disable warnings about missing quoting in GCC diagnostics for\n> diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc\n> index 2cf14e2c801..13153a7c179 100644\n> --- a/gcc/cp/pt.cc\n> +++ b/gcc/cp/pt.cc\n> @@ -16899,21 +16899,25 @@ tsubst_splice_scope (tree t, tree args, tsubst_flags_t complain, tree in_decl)\n> tree r = tsubst (SPLICE_SCOPE_EXPR (t), args, complain, in_decl);\n> if (r == error_mark_node)\n> return r;\n> + const bool type_p = SPLICE_SCOPE_TYPE_P (t);\n> if (dependent_splice_p (r))\n> - return make_splice_scope (r, SPLICE_SCOPE_TYPE_P (t));\n> - if (SPLICE_SCOPE_TYPE_P (t) && ctad_template_p (r))\n> + return make_splice_scope (r, type_p);\n> + if (type_p && ctad_template_p (r))\n> r = make_template_placeholder (r);\n> - if (SPLICE_SCOPE_TYPE_P (t)\n> + if (type_p\n> ? !valid_splice_type_p (r)\n> : !valid_splice_scope_p (r))\n> {\n> if (complain & tf_error)\n> \t{\n> \t const location_t loc = EXPR_LOCATION (SPLICE_SCOPE_EXPR (t));\n> -\t if (SPLICE_SCOPE_TYPE_P (t))\n> -\t error_at (loc, \"%qE is not usable in a splice type\", r);\n> +\t auto_diagnostic_group d;\n> +\t if (type_p)\n> +\t error_at (loc, \"expected a reflection of a type\");\n> \t else\n> -\t error_at (loc, \"%qE is not usable in a splice scope\", r);\n> +\t error_at (loc, \"expected a reflection of a class, namespace, or \"\n> +\t\t \"enumeration\");\n> +\t inform_tree_category (r);\n> \t}\n> return error_mark_node;\n> }\n> diff --git a/gcc/testsuite/g++.dg/reflect/ns5.C b/gcc/testsuite/g++.dg/reflect/ns5.C\n> index 236b2927453..eb75481d9f1 100644\n> --- a/gcc/testsuite/g++.dg/reflect/ns5.C\n> +++ b/gcc/testsuite/g++.dg/reflect/ns5.C\n> @@ -5,12 +5,16 @@ using info = decltype(^^void);\n> \n> template\n> void foo () { }\n> +template\n> +void foo2 () { }\n> void bar () { }\n> namespace N { }\n> namespace M = N;\n> template\n> T vt{};\n> template\n> +T vt2{};\n> +template\n> concept C = true;\n> static int i;\n> enum E { X };\n> @@ -20,23 +24,34 @@ struct D { static T di; };\n> template\n> using Z = D;\n> \n> -template void fn1 () { typename [:R:]::X x; }\t// { dg-error \"not usable in a splice scope\" }\n> -template void fn2 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn3 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn4 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn5 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn6 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn7 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn8 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn9 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn10 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn11 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> +template void fn1 () { typename [:R:]::X x; }\t// { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .foo. is a function\" \"\" { target *-*-* } 7 }\n> +template void fn2 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .foo2. is a function template\" \"\" { target *-*-* } 9 }\n> +template void fn3 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .bar. is a function\" \"\" { target *-*-* } 10 }\n> +template void fn4 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .vt. is a variable\" \"\" { target *-*-* } 14 }\n> +template void fn5 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .vt2. is a variable template\" \"\" { target *-*-* } 16 }\n> +template void fn6 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .C. is a concept\" \"\" { target *-*-* } 18 }\n> +template void fn7 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .i. is a variable\" \"\" { target *-*-* } 19 }\n> +template void fn8 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .X. is an enumerator\" \"\" { target *-*-* } 20 }\n> +template void fn9 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .S::si. is a variable\" \"\" { target *-*-* } 21 }\n> +template void fn10 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .D::di. is a variable\" \"\" { target *-*-* } 23 }\n> +template void fn11 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .Z. is an alias template\" \"\" { target *-*-* } 25 }\n> \n> template void fn1<^^foo>(); // { dg-message \"required from here\" }\n> -template void fn2<^^foo>();\t // { dg-message \"required from here\" }\n> +template void fn2<^^foo2>();\t // { dg-message \"required from here\" }\n> template void fn3<^^bar>();\t // { dg-message \"required from here\" }\n> template void fn4<^^vt>(); // { dg-message \"required from here\" }\n> -template void fn5<^^vt>();\t // { dg-message \"required from here\" }\n> +template void fn5<^^vt2>();\t // { dg-message \"required from here\" }\n> template void fn6<^^C>();\t // { dg-message \"required from here\" }\n> template void fn7<^^i>();\t // { dg-message \"required from here\" }\n> template void fn8<^^X>();\t // { dg-message \"required from here\" }\n> diff --git a/gcc/testsuite/g++.dg/reflect/type9.C b/gcc/testsuite/g++.dg/reflect/type9.C\n> index 2d0409e4b86..99c6fd2781b 100644\n> --- a/gcc/testsuite/g++.dg/reflect/type9.C\n> +++ b/gcc/testsuite/g++.dg/reflect/type9.C\n> @@ -5,12 +5,16 @@ using info = decltype(^^void);\n> \n> template\n> void foo () { }\n> +template\n> +void foo2 () { }\n> void bar () { }\n> namespace N { }\n> namespace M = N;\n> template\n> T vt{};\n> template\n> +T vt2{};\n> +template\n> concept C = true;\n> static int i;\n> enum E { X };\n> @@ -20,27 +24,39 @@ struct D { static T di; };\n> template\n> using Z = D;\n> \n> -template void fn1 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn2 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn3 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn4 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn5 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn6 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn7 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn8 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn9 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn10 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn11 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn12 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> +template void fn1 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .foo. is a function\" \"\" { target *-*-* } 7 }\n> +template void fn2 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .foo2. is a function template\" \"\" { target *-*-* } 9 }\n> +template void fn3 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .N. is a namespace\" \"\" { target *-*-* } 11 }\n> +template void fn4 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .M. is a namespace\" \"\" { target *-*-* } 12 }\n> +template void fn5 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .bar. is a function\" \"\" { target *-*-* } 10 }\n> +template void fn6 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .vt. is a variable\" \"\" { target *-*-* } 14 }\n> +template void fn7 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .vt2. is a variable template\" \"\" { target *-*-* } 16 }\n> +template void fn8 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .C. is a concept\" \"\" { target *-*-* } 18 }\n> +template void fn9 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .i. is a variable\" \"\" { target *-*-* } 19 }\n> +template void fn10 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .X. is an enumerator\" \"\" { target *-*-* } 20 }\n> +template void fn11 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .S::si. is a variable\" \"\" { target *-*-* } 21 }\n> +template void fn12 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .D::di. is a variable\" \"\" { target *-*-* } 23 }\n> template void fn13 () { int n = typename [:R:](42); } // { dg-error \"class template argument deduction failed|no matching\" }\n> \n> template void fn1<^^foo>(); // { dg-message \"required from here\" }\n> -template void fn2<^^foo>();\t // { dg-message \"required from here\" }\n> +template void fn2<^^foo2>();\t // { dg-message \"required from here\" }\n> template void fn3<^^N>();\t // { dg-message \"required from here\" }\n> template void fn4<^^M>();\t // { dg-message \"required from here\" }\n> template void fn5<^^bar>();\t // { dg-message \"required from here\" }\n> template void fn6<^^vt>();\t // { dg-message \"required from here\" }\n> -template void fn7<^^vt>();\t // { dg-message \"required from here\" }\n> +template void fn7<^^vt2>();\t // { dg-message \"required from here\" }\n> template void fn8<^^C>();\t // { dg-message \"required from here\" }\n> template void fn9<^^i>();\t // { dg-message \"required from here\" }\n> template void fn10<^^X>();\t // { dg-message \"required from here\" }\n> \n> base-commit: 8e6b7c97232489557e376bdc134ad69aaeb35794\n> -- \n> 2.53.0\n> \n\nMarek","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","gcc-patches@gcc.gnu.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","gcc-patches@gcc.gnu.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=FYYIVc7T;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=38.145.34.32; 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charset=us-ascii","Content-Disposition":"inline","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}},{"id":3683680,"web_url":"http://patchwork.ozlabs.org/comment/3683680/","msgid":"","list_archive_url":null,"date":"2026-04-28T19:13:05","subject":"Re: [PATCH] c++/reflection: improve diagnostic for dependent splices","submitter":{"id":4337,"url":"http://patchwork.ozlabs.org/api/people/4337/","name":"Jason Merrill","email":"jason@redhat.com"},"content":"On 4/20/26 1:08 PM, Marek Polacek wrote:\n> Tested dg.exp on x86_64-pc-linux-gnu, ok for trunk?\n\nOK.\n\n> -- >8 --\n> In the parser we've changed the \"not usable in a splice\" error messages\n> to the more helpful \"expected a reflection of ...\", but tsubst_splice_scope\n> still uses the former. This patch updates the diagnostic there as well.\n> Let's also teach inform_tree_category about concepts and alias templates\n> now that a testcase exercises them.\n> \n> gcc/cp/ChangeLog:\n> \n> \t* error.cc (inform_tree_category): Also print concept and alias\n> \ttemplate.\n> \t* pt.cc (tsubst_splice_scope): Reword the diagnostic messages.\n> \tCall inform_tree_category.\n> \n> gcc/testsuite/ChangeLog:\n> \n> \t* g++.dg/reflect/ns5.C: Adjust expected diagnostics.\n> \t* g++.dg/reflect/type9.C: Likewise.\n> ---\n> gcc/cp/error.cc | 4 +++\n> gcc/cp/pt.cc | 16 ++++++----\n> gcc/testsuite/g++.dg/reflect/ns5.C | 41 ++++++++++++++++++--------\n> gcc/testsuite/g++.dg/reflect/type9.C | 44 +++++++++++++++++++---------\n> 4 files changed, 72 insertions(+), 33 deletions(-)\n> \n> diff --git a/gcc/cp/error.cc b/gcc/cp/error.cc\n> index e7121dc1017..2ea9d1a7bcd 100644\n> --- a/gcc/cp/error.cc\n> +++ b/gcc/cp/error.cc\n> @@ -4013,12 +4013,16 @@ inform_tree_category (tree t)\n> inform (loc, \"but %qE is a function template\", t);\n> else if (DECL_CLASS_TEMPLATE_P (t))\n> inform (loc, \"but %qE is a class template\", t);\n> + else if (DECL_ALIAS_TEMPLATE_P (t))\n> + inform (loc, \"but %qE is an alias template\", t);\n> else if (variable_template_p (t))\n> inform (loc, \"but %qE is a variable template\", t);\n> else if (TREE_CODE (t) == NAMESPACE_DECL)\n> inform (loc, \"but %qE is a namespace\", t);\n> else if (TREE_CODE (t) == CONST_DECL && !DECL_TEMPLATE_PARM_P (t))\n> inform (loc, \"but %qE is an enumerator\", t);\n> + else if (concept_definition_p (t))\n> + inform (loc, \"but %qE is a concept\", t);\n> }\n> \n> /* Disable warnings about missing quoting in GCC diagnostics for\n> diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc\n> index 2cf14e2c801..13153a7c179 100644\n> --- a/gcc/cp/pt.cc\n> +++ b/gcc/cp/pt.cc\n> @@ -16899,21 +16899,25 @@ tsubst_splice_scope (tree t, tree args, tsubst_flags_t complain, tree in_decl)\n> tree r = tsubst (SPLICE_SCOPE_EXPR (t), args, complain, in_decl);\n> if (r == error_mark_node)\n> return r;\n> + const bool type_p = SPLICE_SCOPE_TYPE_P (t);\n> if (dependent_splice_p (r))\n> - return make_splice_scope (r, SPLICE_SCOPE_TYPE_P (t));\n> - if (SPLICE_SCOPE_TYPE_P (t) && ctad_template_p (r))\n> + return make_splice_scope (r, type_p);\n> + if (type_p && ctad_template_p (r))\n> r = make_template_placeholder (r);\n> - if (SPLICE_SCOPE_TYPE_P (t)\n> + if (type_p\n> ? !valid_splice_type_p (r)\n> : !valid_splice_scope_p (r))\n> {\n> if (complain & tf_error)\n> \t{\n> \t const location_t loc = EXPR_LOCATION (SPLICE_SCOPE_EXPR (t));\n> -\t if (SPLICE_SCOPE_TYPE_P (t))\n> -\t error_at (loc, \"%qE is not usable in a splice type\", r);\n> +\t auto_diagnostic_group d;\n> +\t if (type_p)\n> +\t error_at (loc, \"expected a reflection of a type\");\n> \t else\n> -\t error_at (loc, \"%qE is not usable in a splice scope\", r);\n> +\t error_at (loc, \"expected a reflection of a class, namespace, or \"\n> +\t\t \"enumeration\");\n> +\t inform_tree_category (r);\n> \t}\n> return error_mark_node;\n> }\n> diff --git a/gcc/testsuite/g++.dg/reflect/ns5.C b/gcc/testsuite/g++.dg/reflect/ns5.C\n> index 236b2927453..eb75481d9f1 100644\n> --- a/gcc/testsuite/g++.dg/reflect/ns5.C\n> +++ b/gcc/testsuite/g++.dg/reflect/ns5.C\n> @@ -5,12 +5,16 @@ using info = decltype(^^void);\n> \n> template\n> void foo () { }\n> +template\n> +void foo2 () { }\n> void bar () { }\n> namespace N { }\n> namespace M = N;\n> template\n> T vt{};\n> template\n> +T vt2{};\n> +template\n> concept C = true;\n> static int i;\n> enum E { X };\n> @@ -20,23 +24,34 @@ struct D { static T di; };\n> template\n> using Z = D;\n> \n> -template void fn1 () { typename [:R:]::X x; }\t// { dg-error \"not usable in a splice scope\" }\n> -template void fn2 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn3 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn4 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn5 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn6 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn7 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn8 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn9 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn10 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> -template void fn11 () { typename [:R:]::X x; } // { dg-error \"not usable in a splice scope\" }\n> +template void fn1 () { typename [:R:]::X x; }\t// { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .foo. is a function\" \"\" { target *-*-* } 7 }\n> +template void fn2 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .foo2. is a function template\" \"\" { target *-*-* } 9 }\n> +template void fn3 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .bar. is a function\" \"\" { target *-*-* } 10 }\n> +template void fn4 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .vt. is a variable\" \"\" { target *-*-* } 14 }\n> +template void fn5 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .vt2. is a variable template\" \"\" { target *-*-* } 16 }\n> +template void fn6 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .C. is a concept\" \"\" { target *-*-* } 18 }\n> +template void fn7 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .i. is a variable\" \"\" { target *-*-* } 19 }\n> +template void fn8 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .X. is an enumerator\" \"\" { target *-*-* } 20 }\n> +template void fn9 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .S::si. is a variable\" \"\" { target *-*-* } 21 }\n> +template void fn10 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .D::di. is a variable\" \"\" { target *-*-* } 23 }\n> +template void fn11 () { typename [:R:]::X x; } // { dg-error \"expected a reflection of a class, namespace, or enumeration\" }\n> +// { dg-message \"but .Z. is an alias template\" \"\" { target *-*-* } 25 }\n> \n> template void fn1<^^foo>(); // { dg-message \"required from here\" }\n> -template void fn2<^^foo>();\t // { dg-message \"required from here\" }\n> +template void fn2<^^foo2>();\t // { dg-message \"required from here\" }\n> template void fn3<^^bar>();\t // { dg-message \"required from here\" }\n> template void fn4<^^vt>(); // { dg-message \"required from here\" }\n> -template void fn5<^^vt>();\t // { dg-message \"required from here\" }\n> +template void fn5<^^vt2>();\t // { dg-message \"required from here\" }\n> template void fn6<^^C>();\t // { dg-message \"required from here\" }\n> template void fn7<^^i>();\t // { dg-message \"required from here\" }\n> template void fn8<^^X>();\t // { dg-message \"required from here\" }\n> diff --git a/gcc/testsuite/g++.dg/reflect/type9.C b/gcc/testsuite/g++.dg/reflect/type9.C\n> index 2d0409e4b86..99c6fd2781b 100644\n> --- a/gcc/testsuite/g++.dg/reflect/type9.C\n> +++ b/gcc/testsuite/g++.dg/reflect/type9.C\n> @@ -5,12 +5,16 @@ using info = decltype(^^void);\n> \n> template\n> void foo () { }\n> +template\n> +void foo2 () { }\n> void bar () { }\n> namespace N { }\n> namespace M = N;\n> template\n> T vt{};\n> template\n> +T vt2{};\n> +template\n> concept C = true;\n> static int i;\n> enum E { X };\n> @@ -20,27 +24,39 @@ struct D { static T di; };\n> template\n> using Z = D;\n> \n> -template void fn1 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn2 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn3 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn4 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn5 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn6 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn7 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn8 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn9 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn10 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn11 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> -template void fn12 () { int n = typename [:R:](42); } // { dg-error \"not usable in a splice type\" }\n> +template void fn1 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .foo. is a function\" \"\" { target *-*-* } 7 }\n> +template void fn2 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .foo2. is a function template\" \"\" { target *-*-* } 9 }\n> +template void fn3 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .N. is a namespace\" \"\" { target *-*-* } 11 }\n> +template void fn4 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .M. is a namespace\" \"\" { target *-*-* } 12 }\n> +template void fn5 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .bar. is a function\" \"\" { target *-*-* } 10 }\n> +template void fn6 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .vt. is a variable\" \"\" { target *-*-* } 14 }\n> +template void fn7 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .vt2. is a variable template\" \"\" { target *-*-* } 16 }\n> +template void fn8 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .C. is a concept\" \"\" { target *-*-* } 18 }\n> +template void fn9 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .i. is a variable\" \"\" { target *-*-* } 19 }\n> +template void fn10 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .X. is an enumerator\" \"\" { target *-*-* } 20 }\n> +template void fn11 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .S::si. is a variable\" \"\" { target *-*-* } 21 }\n> +template void fn12 () { int n = typename [:R:](42); } // { dg-error \"expected a reflection of a type\" }\n> +// { dg-message \"but .D::di. is a variable\" \"\" { target *-*-* } 23 }\n> template void fn13 () { int n = typename [:R:](42); } // { dg-error \"class template argument deduction failed|no matching\" }\n> \n> template void fn1<^^foo>(); // { dg-message \"required from here\" }\n> -template void fn2<^^foo>();\t // { dg-message \"required from here\" }\n> +template void fn2<^^foo2>();\t // { dg-message \"required from here\" }\n> template void fn3<^^N>();\t // { dg-message \"required from here\" }\n> template void fn4<^^M>();\t // { dg-message \"required from here\" }\n> template void fn5<^^bar>();\t // { dg-message \"required from here\" }\n> template void fn6<^^vt>();\t // { dg-message \"required from here\" }\n> -template void fn7<^^vt>();\t // { dg-message \"required from here\" }\n> +template void fn7<^^vt2>();\t // { dg-message \"required from here\" }\n> template void fn8<^^C>();\t // { dg-message \"required from here\" }\n> template void fn9<^^i>();\t // { dg-message \"required from here\" }\n> template void fn10<^^X>();\t // { dg-message \"required from here\" }\n> \n> base-commit: 8e6b7c97232489557e376bdc134ad69aaeb35794","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","gcc-patches@gcc.gnu.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","gcc-patches@gcc.gnu.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=MnTjIVkl;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=38.145.34.32; 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