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| author | Jason Merrill <jason@redhat.com> | 2025-04-30 10:18:46 -0400 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2025-05-02 07:49:09 -0400 |
| commit | e6e3b0772ed40cc65a544bbe744ece62d8b9713e (patch) | |
| tree | 6c392c05fb5a2c57d5145a3a6b84c8735412f284 /gcc/fortran/openmp.cc | |
| parent | 4af5de21363cfdd2be227c05dfdee7e053337f6a (diff) | |
| download | gcc-e6e3b0772ed40cc65a544bbe744ece62d8b9713e.zip gcc-e6e3b0772ed40cc65a544bbe744ece62d8b9713e.tar.gz gcc-e6e3b0772ed40cc65a544bbe744ece62d8b9713e.tar.bz2 | |
c++: C++17/20 class layout divergence [PR120012]
C++20 made a class with only explicitly defaulted constructors no longer
aggregate, and this wrongly affected whether the class is considered "POD
for layout purposes" under the ABI.
Conveniently, we already have check_non_pod_aggregate to diagnose cases
where this makes a difference, due to PR103681 around a C++14 aggregate
change.
PR c++/120012
gcc/cp/ChangeLog:
* cp-tree.h (struct lang_type): Add non_aggregate_pod.
(CLASSTYPE_NON_AGGREGATE_POD): New.
* class.cc (check_bases_and_members): Set it.
(check_non_pod_aggregate): Diagnose it.
gcc/ChangeLog:
* doc/invoke.texi: Document C++20 aggregate fix.
* common.opt: Likewise.
gcc/testsuite/ChangeLog:
* g++.dg/abi/base-defaulted1.C: New test.
* g++.dg/abi/base-defaulted1a.C: New test.
Diffstat (limited to 'gcc/fortran/openmp.cc')
0 files changed, 0 insertions, 0 deletions