https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94326
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- $ rm -f pr94326.C.*; ./cc1plus -quiet -std=c++11 pr94326.C -Wreturn-local-addr -da; grep REG_EH_REGION pr94326.C.* pr94326.C: In instantiation of ‘const int& A< <template-parameter-1-1> >::m_fn1() [with <template-parameter-1-1> = int]’: pr94326.C:5:45: required from ‘void A< <template-parameter-1-1> >::m_fn2(_Kt) [with _Kt = C; <template-parameter-1-1> = int]’ pr94326.C:12:15: required from ‘decltype (((B*)this)->B::_M_t.A<>::m_fn2<_Kt>(p1)) B::m_fn3(_Kt) [with _Kt = C; decltype (((B*)this)->B::_M_t.A<>::m_fn2<_Kt>(p1)) = void]’ pr94326.C:18:14: required from here pr94326.C:2:31: warning: returning reference to temporary [-Wreturn-local-addr] 2 | const int &m_fn1() { return 0; } | ^ $ rm -f pr94326.C.*; ./cc1plus -quiet -std=c++11 pr94326.C -Wno-return-local-addr -da; grep REG_EH_REGION pr94326.C.* pr94326.C.236r.expand: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.236r.expand: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.237r.vregs: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.238r.into_cfglayout: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.239r.jump: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.239r.jump: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.251r.reginfo: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.274r.outof_cfglayout: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.275r.split1: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.277r.dfinit: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.278r.mode_sw: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.279r.asmcons: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.284r.ira: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.285r.reload: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.292r.pro_and_epilogue: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.295r.jump2: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.306r.split4: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.307r.stack: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.308r.alignments: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.310r.mach: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.311r.barriers: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.316r.shorten: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.317r.nothrow: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.318r.dwarf2: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.319r.final: (expr_list:REG_EH_REGION (const_int 0 [0]) pr94326.C.320r.dfinish: (expr_list:REG_EH_REGION (const_int 0 [0])