[gcc r14-5967] Fix 'g++.dg/cpp26/static_assert1.C' for '-fno-exceptions' configurations

[gcc r14-5967] Fix 'g++.dg/cpp26/static_assert1.C' for '-fno-exceptions' configurations

[Thomas Schwinge]

https://gcc.gnu.org/g:58baac57d6f3c0f723c1fd6ae338752e73e42934

commit r14-5967-g58baac57d6f3c0f723c1fd6ae338752e73e42934
Author: Thomas Schwinge <thomas@codesourcery.com>
Date:   Tue Nov 28 17:52:34 2023 +0100

    Fix 'g++.dg/cpp26/static_assert1.C' for '-fno-exceptions' configurations
    
    This test case, added in recent commit 6ce952188ab39e303e4f63e474b5cba83b5b12fd
    "c++: Implement C++26 P2741R3 - user-generated static_assert messages [PR110348]",
    expectedly runs into 'UNSUPPORTED: [...]: exception handling disabled', but
    along the way also FAILs a few tests:
    
        UNSUPPORTED: g++.dg/cpp26/static_assert1.C  -std=gnu++98
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++11  (test for warnings, line 6)
        [...]
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++11  (test for warnings, line 51)
        FAIL: g++.dg/cpp26/static_assert1.C  -std=gnu++11  (test for errors, line 52)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++11  (test for warnings, line 56)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++11  (test for warnings, line 57)
        FAIL: g++.dg/cpp26/static_assert1.C  -std=gnu++11  at line 58 (test for errors, line 57)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++11  (test for warnings, line 59)
        [...]
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++11  at line 308 (test for errors, line 307)
        UNSUPPORTED: g++.dg/cpp26/static_assert1.C  -std=gnu++11: exception handling disabled
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++14  (test for warnings, line 6)
        [...]
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++14  (test for warnings, line 51)
        FAIL: g++.dg/cpp26/static_assert1.C  -std=gnu++14  (test for errors, line 52)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++14  (test for warnings, line 56)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++14  (test for warnings, line 57)
        FAIL: g++.dg/cpp26/static_assert1.C  -std=gnu++14  at line 58 (test for errors, line 57)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++14  (test for warnings, line 59)
        [...]
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++14  at line 257 (test for errors, line 256)
        FAIL: g++.dg/cpp26/static_assert1.C  -std=gnu++14  (test for errors, line 261)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++14  (test for warnings, line 262)
        [...]
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++14  at line 308 (test for errors, line 307)
        UNSUPPORTED: g++.dg/cpp26/static_assert1.C  -std=gnu++14: exception handling disabled
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++20  (test for warnings, line 6)
        [...]
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++20  (test for warnings, line 51)
        FAIL: g++.dg/cpp26/static_assert1.C  -std=gnu++20  (test for errors, line 52)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++20  (test for warnings, line 56)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++20  (test for warnings, line 57)
        FAIL: g++.dg/cpp26/static_assert1.C  -std=gnu++20  at line 58 (test for errors, line 57)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++20  (test for warnings, line 59)
        [...]
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++20  at line 257 (test for errors, line 256)
        FAIL: g++.dg/cpp26/static_assert1.C  -std=gnu++20  (test for errors, line 261)
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++20  (test for warnings, line 262)
        [...]
        PASS: g++.dg/cpp26/static_assert1.C  -std=gnu++20  at line 308 (test for errors, line 307)
        UNSUPPORTED: g++.dg/cpp26/static_assert1.C  -std=gnu++20: exception handling disabled
    
    Use an explicit '-fexceptions' to turn this front end test case all-PASS.
    
            gcc/testsuite/
            * g++.dg/cpp26/static_assert1.C: Fix for '-fno-exceptions'
            configurations.

Diff:
---
 gcc/testsuite/g++.dg/cpp26/static_assert1.C | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/testsuite/g++.dg/cpp26/static_assert1.C b/gcc/testsuite/g++.dg/cpp26/static_assert1.C
index 9dec52b90d6..59724ae32ce 100644
--- a/gcc/testsuite/g++.dg/cpp26/static_assert1.C
+++ b/gcc/testsuite/g++.dg/cpp26/static_assert1.C
@@ -1,6 +1,8 @@
 // C++26 P2741R3 - user-generated static_assert messages
 // { dg-do compile { target c++11 } }
 // { dg-options "" }
+// Override any default-'-fno-exceptions':
+// { dg-additional-options -fexceptions }
 
 static_assert (true, "");
 static_assert (true, (""));	// { dg-warning "'static_assert' with non-string message only available with" "" { target c++23_down } }