https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111591
--- Comment #11 from Mathieu Malaterre <malat at debian dot org> --- (In reply to Kewen Lin from comment #6) > Confirmed, thanks for reporting. > > I noticed that the reduced test case in #c1 can make gcc-13 complain with: > > test.cc:67:16: error: expected type-specifier before ‘__remove_reference’ > 67 | using type = __remove_reference(_Tp); > | ^~~~~~~~~~~~~~~~~~ > > Also gcc-12, gcc-11 build. > > Is it expected? If yes, could we have a reduced test case to survive for > gcc-12 and gcc-11 compilation? I think it would help bisection. `__remove_reference` must be something new in g++-13. Anyway I started a cvise regression using g++-11 against g++-12. You can try on your side: g++-11 -std=c++11 -o works -maltivec -mcpu=power8 -mstrict-align -g -O3 widen_mul_test.cc foo.cc -Wall -Wextra -Werror -Wfatal-errors vs g++-12 -std=c++11 -o fails -maltivec -mcpu=power8 -mstrict-align -g -O3 widen_mul_test.cc foo.cc -Wall -Wextra -Werror -Wfatal-errors For some reason if I copy/paste foo.cc into the main cc file (gnu::noipa) I can not reproduce the issue. So you'll have to download both *.cc files. Thanks !
