I missed this testsuite fix in the libstdc++ commit. Tested x86_64-linux, pushed to trunk.
-- >8 -- std::string now has [[nodiscard]] attributes on most members, causing -Wunused-result warnings for this test. gcc/testsuite/ChangeLog: PR testsuite/106795 * g++.dg/tree-ssa/empty-loop.C: Use -Wno-unused-result. --- gcc/testsuite/g++.dg/tree-ssa/empty-loop.C | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/testsuite/g++.dg/tree-ssa/empty-loop.C b/gcc/testsuite/g++.dg/tree-ssa/empty-loop.C index 6b1e879e6a9..dca7868f3c9 100644 --- a/gcc/testsuite/g++.dg/tree-ssa/empty-loop.C +++ b/gcc/testsuite/g++.dg/tree-ssa/empty-loop.C @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fdump-tree-cddce2 -ffinite-loops" } */ +/* { dg-options "-O2 -fdump-tree-cddce2 -ffinite-loops -Wno-unused-result" } */ #include <string> #include <vector> -- 2.37.2