https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81763
--- Comment #46 from Manuel Lauss <manuel.lauss at googlemail dot com> --- Created attachment 43257 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43257&action=edit reducest testcase reduced testcase for Jakub's patch in comment #36 and the build failure it causes in comment #42: g++ (Gentoo 7.2.0-r1 p1.1) 7.2.0 g++ -m32 -O2 -mbmi -fPIC -fno-strict-aliasing -c testcase.i testcase.i:126:12: warning: ‘unsigned int {anonymous}::bc::bn()’ used but never defined unsigned bn(); ^~ testcase.i:98:8: warning: ‘void {anonymous}::bc::bo({anonymous}::bc&)’ used but never defined void bo(bc &); ^~ testcase.i:154:3: warning: ‘{anonymous}::bw::bw(unsigned int)’ used but never defined bw(unsigned); ^~ testcase.i: In function ‘bool bz({anonymous}::bw&, ai::as, by&, bool, ai::av&)’: testcase.i:178:1: internal compiler error: in gen_split_178, at config/i386/i386.md:8623 } ^
