https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102772
--- Comment #37 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #36 from Jakub Jelinek <jakub at gcc dot gnu.org> --- > Created attachment 52719 > --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52719&action=edit > gcc12-pr102772.patch > > So like this? Mostly. There were some issues, though: * Initially, the patch caused the bootstrap to fail: In file included from /var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/i386-pc-solaris2.11/bits/c++allocator.h:33, from /var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/bits/allocator.h:46, from /var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/memory:64, from /vol/gcc/src/hg/master/local/libstdc++-v3/src/c++98/allocator-inst.cc:29: /var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/bits/new_allocator.h: In member function '_Tp* std::__new_allocator<_Tp>::allocate(size_type, const void*)': /var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/bits/new_allocator.h:130:24: error: expected primary-expression before ')' token 130 | if (alignof(_Tp) > __STDCPP_DEFAULT_NEW_ALIGNMENT__) | ^ | ^~~~~~~ /var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/bits/new_allocator.h:130:13: note: (if you use '-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated) /var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/bits/new_allocator.h:132:54: error: there are no arguments to 'alignof' that depend on a template parameter, so a declaration of 'alignof' must be available [-fpermissive] 132 | std::align_val_t __al = std::align_val_t(alignof(_Tp)); | ^~~~~~~ /var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/bits/new_allocator.h:132:53: error: expected primary-expression before '(' token 132 | std::align_val_t __al = std::align_val_t(alignof(_Tp)); | ^ /var/gcc/regression/master/11.4-gcc/build/i386-pc-solaris2.11/libstdc++-v3/include/bits/new_allocator.h:132:65: error: expected primary-expression before ')' token 132 | std::align_val_t __al = std::align_val_t(alignof(_Tp)); | ^ and several more, affecting include/ext/bitmap_allocator.h include/ext/mt_allocator.h include/ext/pool_allocator.h AFAICS, alignof is C++ >= 11 only. I've used the attached patch to use __alignof__ instead, although I don't know if that's the best fix. * With that, the build completed and g++.dg/torture/pr80334.C PASSes. And yes, my tree did include changeset: 259338:c7f332059508 bookmark: trunk tag: qparent user: Jakub Jelinek <ja...@redhat.com> date: Wed Mar 30 16:47:10 2022 +0200 summary: Revert "testsuite: Change pr80334.C testcase to dg-do compile [PR102772]" * However, there were quite a number of 32-bit regressions: +FAIL: g++.dg/cpp1z/aligned-new4.C (test for warnings, line 11) +FAIL: g++.dg/cpp1z/aligned-new4a.C (test for warnings, line 11) +FAIL: g++.dg/diagnostic/recur-align.C -std=gnu++14 (test for warnings, line 13) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 132) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 136) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 140) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 155) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 180) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 210) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 233) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 241) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 41) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for warnings, line 43) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 (test for excess errors) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 note (test for warnings, line 178) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 note (test for warnings, line 208) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 note (test for warnings, line 231) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++14 note (test for warnings, line 238) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 132) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 136) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 140) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 155) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 180) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 210) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 233) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 241) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 41) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for warnings, line 43) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 (test for excess errors) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 note (test for warnings, line 178) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 note (test for warnings, line 208) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 note (test for warnings, line 231) +FAIL: g++.dg/warn/Wmismatched-new-delete-2.C -std=gnu++98 note (test for warnings, line 238) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for warnings, line 108) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for warnings, line 110) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for warnings, line 116) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for warnings, line 122) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for warnings, line 128) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for warnings, line 138) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for warnings, line 144) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for warnings, line 150) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for warnings, line 156) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++14 (test for excess errors) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for warnings, line 108) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for warnings, line 110) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for warnings, line 116) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for warnings, line 122) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for warnings, line 128) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for warnings, line 138) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for warnings, line 144) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for warnings, line 150) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for warnings, line 156) +FAIL: g++.dg/warn/Wmismatched-new-delete-6.C -std=gnu++98 (test for excess errors) +FAIL: g++.dg/warn/Wmismatched-new-delete-7.C -std=gnu++14 (test for excess errors) +FAIL: g++.dg/warn/Wmismatched-new-delete-7.C -std=gnu++98 (test for excess errors) I don't really understand what's going on here. There were two more +FAIL: 17_intro/headers/c++1998/all_attributes.cc (test for excess errors) Excess errors: /var/gcc/regression/master/11.4-gcc-gas/build/i386-pc-solaris2.11/libstdc++-v3/include/ext/malloc_allocator.h:138: error: expected primary-expression before ')' token /var/gcc/regression/master/11.4-gcc-gas/build/i386-pc-solaris2.11/libstdc++-v3/include/ext/malloc_allocator.h:138: error: there are no arguments to 'alignof' that depend on a template parameter, so a declaration of 'alignof' must be available [-fpermissive] +FAIL: 17_intro/headers/c++1998/profile_mode.cc (test for excess errors) Excess errors: /var/gcc/regression/master/11.4-gcc-gas/build/i386-pc-solaris2.11/libstdc++-v3/include/ext/malloc_allocator.h:138: error: expected primary-expression before ')' token /var/gcc/regression/master/11.4-gcc-gas/build/i386-pc-solaris2.11/libstdc++-v3/include/ext/malloc_allocator.h:138: error: there are no arguments to 'alignof' that depend on a template parameter, so a declaration of 'alignof' must be available [-fpermissive] Those are other instances of alignof not being present in C++98, so I changed include/ext/malloc_allocator.h to also use __alignof__ instead of alignof, which makes those tests PASS.
