On 11/13/23 06:58, Nathaniel Shead wrote:
Bootstrapped and regtested on x86_64-pc-linux-gnu. I don't have write access.
-- >8 --
The testcase noted in the PR fails because the context of the lambda is
not in namespace scope, but rather in class scope. This patch removes
the assertion that the context must be a namespace and ensures that
lambdas in class scope still get the correct merge_kind.
ok, could you put a comment in the lambda chcking part that it's context might
be a class, even though it's not member in the conventional sense?
nathan
PR c++/107398
gcc/cp/ChangeLog:
* module.cc (trees_out::get_merge_kind): Handle lambdas in class
scope.
(maybe_key_decl): Remove assertion and fix whitespace.
gcc/testsuite/ChangeLog:
* g++.dg/modules/lambda-6_a.C: New test.
* g++.dg/modules/lambda-6_b.C: New test.
Signed-off-by: Nathaniel Shead <nathanielosh...@gmail.com>
---
gcc/cp/module.cc | 35 +++++++++++++----------
gcc/testsuite/g++.dg/modules/lambda-6_a.C | 16 +++++++++++
gcc/testsuite/g++.dg/modules/lambda-6_b.C | 9 ++++++
3 files changed, 45 insertions(+), 15 deletions(-)
create mode 100644 gcc/testsuite/g++.dg/modules/lambda-6_a.C
create mode 100644 gcc/testsuite/g++.dg/modules/lambda-6_b.C
diff --git a/gcc/cp/module.cc b/gcc/cp/module.cc
index c1c8c226bc1..434caf22d1d 100644
--- a/gcc/cp/module.cc
+++ b/gcc/cp/module.cc
@@ -10412,13 +10412,13 @@ trees_out::get_merge_kind (tree decl, depset *dep)
case RECORD_TYPE:
case UNION_TYPE:
+ case NAMESPACE_DECL:
if (DECL_NAME (decl) == as_base_identifier)
- mk = MK_as_base;
- else if (IDENTIFIER_ANON_P (DECL_NAME (decl)))
- mk = MK_field;
- break;
+ {
+ mk = MK_as_base;
+ break;
+ }
- case NAMESPACE_DECL:
if (DECL_IMPLICIT_TYPEDEF_P (STRIP_TEMPLATE (decl))
&& LAMBDA_TYPE_P (TREE_TYPE (decl)))
if (tree scope
@@ -10431,6 +10431,13 @@ trees_out::get_merge_kind (tree decl, depset *dep)
break;
}
+ if (RECORD_OR_UNION_TYPE_P (ctx))
+ {
+ if (IDENTIFIER_ANON_P (DECL_NAME (decl)))
+ mk = MK_field;
+ break;
+ }
+
if (TREE_CODE (decl) == TEMPLATE_DECL
&& DECL_UNINSTANTIATED_TEMPLATE_FRIEND_P (decl))
mk = MK_local_friend;
@@ -18887,18 +18894,16 @@ maybe_key_decl (tree ctx, tree decl)
if (TREE_CODE (ctx) != VAR_DECL)
return;
- gcc_checking_assert (DECL_NAMESPACE_SCOPE_P (ctx));
-
- if (!keyed_table)
+ if (!keyed_table)
keyed_table = new keyed_map_t (EXPERIMENT (1, 400));
- auto &vec = keyed_table->get_or_insert (ctx);
- if (!vec.length ())
- {
- retrofit_lang_decl (ctx);
- DECL_MODULE_KEYED_DECLS_P (ctx) = true;
- }
- vec.safe_push (decl);
+ auto &vec = keyed_table->get_or_insert (ctx);
+ if (!vec.length ())
+ {
+ retrofit_lang_decl (ctx);
+ DECL_MODULE_KEYED_DECLS_P (ctx) = true;
+ }
+ vec.safe_push (decl);
}
/* Create the flat name string. It is simplest to have it handy. */
diff --git a/gcc/testsuite/g++.dg/modules/lambda-6_a.C
b/gcc/testsuite/g++.dg/modules/lambda-6_a.C
new file mode 100644
index 00000000000..28bfb358afb
--- /dev/null
+++ b/gcc/testsuite/g++.dg/modules/lambda-6_a.C
@@ -0,0 +1,16 @@
+// PR c++/107398
+// { dg-additional-options "-fmodules-ts" }
+// { dg-module-cmi Lambda6 }
+
+export module Lambda6;
+
+template <typename T>
+struct R { static int x; };
+
+template <typename T>
+int R<T>::x = []{int i; return 1;}();
+
+export int foo();
+int foo() {
+ return R<int>::x;
+}
diff --git a/gcc/testsuite/g++.dg/modules/lambda-6_b.C
b/gcc/testsuite/g++.dg/modules/lambda-6_b.C
new file mode 100644
index 00000000000..ab0c4ab4805
--- /dev/null
+++ b/gcc/testsuite/g++.dg/modules/lambda-6_b.C
@@ -0,0 +1,9 @@
+// PR c++/107398
+// { dg-additional-options "-fmodules-ts" }
+
+import Lambda6;
+
+int main() {
+ if (foo() != 1)
+ __builtin_abort();
+}
--
Nathan Sidwell
