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| author | Jason Merrill <jason@redhat.com> | 2025-04-10 18:16:37 -0400 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2025-04-11 09:53:40 -0400 |
| commit | 4acdfb71d4fdaa43c2707ad7b2fb7b2b7bddfc42 (patch) | |
| tree | fd375ef200d46d57efa5ab73dba0bc715f7b3332 /gcc/rust/ast | |
| parent | 44478b69d70ff0095a1fd06392e380827de4688a (diff) | |
| download | gcc-4acdfb71d4fdaa43c2707ad7b2fb7b2b7bddfc42.zip gcc-4acdfb71d4fdaa43c2707ad7b2fb7b2b7bddfc42.tar.gz gcc-4acdfb71d4fdaa43c2707ad7b2fb7b2b7bddfc42.tar.bz2 | |
c++: avoid ARM -Wunused-value [PR114970]
Because of the __builtin_is_constant_evaluated, maybe_constant_init in
expand_default_init fails, so the constexpr constructor isn't folded until
cp_fold, which then calls cp_build_init_expr_for_ctor, which builds a
COMPOUND_EXPR in case the enclosing expression is relying on the ARM
behavior of returning 'this'.
As in other places, avoid -Wunused-value on artificial COMPOUND_EXPR.
PR c++/114970
gcc/cp/ChangeLog:
* cp-gimplify.cc (cp_build_init_expr_for_ctor): Suppress warnings on
return_this COMPOUND_EXPR.
gcc/testsuite/ChangeLog:
* g++.dg/opt/is_constant_evaluated4.C: New test.
Diffstat (limited to 'gcc/rust/ast')
0 files changed, 0 insertions, 0 deletions