From 19cc4b9d74940f29c961e2a5a8b1fa84992d3d30 Mon Sep 17 00:00:00 2001 From: Lewis Hyatt Date: Wed, 18 Oct 2023 12:37:08 -0400 Subject: c++: Make -Wunknown-pragmas controllable by #pragma GCC diagnostic [PR89038] As noted on the PR, commit r13-1544, the fix for PR53431, did not handle the specific case of -Wunknown-pragmas, because that warning is issued during preprocessing, but not by libcpp directly (it comes from the cb_def_pragma callback). Address that by handling this pragma in addition to libcpp pragmas during the early pragma handler. gcc/c-family/ChangeLog: PR c++/89038 * c-pragma.cc (handle_pragma_diagnostic_impl): Handle -Wunknown-pragmas during early processing. gcc/testsuite/ChangeLog: PR c++/89038 * c-c++-common/cpp/Wunknown-pragmas-1.c: New test. --- gcc/testsuite/c-c++-common/cpp/Wunknown-pragmas-1.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 gcc/testsuite/c-c++-common/cpp/Wunknown-pragmas-1.c (limited to 'gcc/testsuite/c-c++-common') diff --git a/gcc/testsuite/c-c++-common/cpp/Wunknown-pragmas-1.c b/gcc/testsuite/c-c++-common/cpp/Wunknown-pragmas-1.c new file mode 100644 index 0000000..fb58739 --- /dev/null +++ b/gcc/testsuite/c-c++-common/cpp/Wunknown-pragmas-1.c @@ -0,0 +1,13 @@ +/* PR c++/89038 */ +/* { dg-additional-options "-Wunknown-pragmas" } */ + +#pragma oops /* { dg-warning "-:-Wunknown-pragmas" } */ +#pragma GGC diagnostic push /* { dg-warning "-:-Wunknown-pragmas" } */ +#pragma GCC diagnostics push /* { dg-warning "-:-Wunknown-pragmas" } */ + +/* Test we can disable the warnings. */ +#pragma GCC diagnostic ignored "-Wunknown-pragmas" + +#pragma oops /* { dg-bogus "-:-Wunknown-pragmas" } */ +#pragma GGC diagnostic push /* { dg-bogus "-:-Wunknown-pragmas" } */ +#pragma GCC diagnostics push /* { dg-bogus "-:-Wunknown-pragmas" } */ -- cgit v1.1