https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94205
Bug ID: 94205 Summary: ICE in cxx_eval_constant_expression with 'this'-capturing lambda inside an NSDMI Product: gcc Version: 10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: ppalka at gcc dot gnu.org Target Milestone: --- $ cat ice.C struct S { int a = [this] { this->a = 5; return 6; } (); }; constexpr S s = {}; $ g++ -std=c++2a ice.C ice.C:7:18: internal compiler error: in cxx_eval_constant_expression, at cp/constexpr.c:6176 7 | constexpr S s = {}; | ^ 0x5fe2d0 cxx_eval_constant_expression /home/patrick/code/gcc-master/gcc/cp/constexpr.c:6176 0x941f5f cxx_eval_constant_expression /home/patrick/code/gcc-master/gcc/cp/constexpr.c:5700 0x9413d6 cxx_eval_constant_expression /home/patrick/code/gcc-master/gcc/cp/constexpr.c:5965 0x94eacf cxx_eval_bare_aggregate /home/patrick/code/gcc-master/gcc/cp/constexpr.c:3836 0x941f0f cxx_eval_constant_expression /home/patrick/code/gcc-master/gcc/cp/constexpr.c:5930 0x943e5b cxx_eval_constant_expression /home/patrick/code/gcc-master/gcc/cp/constexpr.c:5552 0x941f5f cxx_eval_constant_expression /home/patrick/code/gcc-master/gcc/cp/constexpr.c:5700 0x94f4f3 cxx_bind_parameters_in_call /home/patrick/code/gcc-master/gcc/cp/constexpr.c:1525 0x93eb25 cxx_eval_call_expression /home/patrick/code/gcc-master/gcc/cp/constexpr.c:2294 0x94177d cxx_eval_constant_expression /home/patrick/code/gcc-master/gcc/cp/constexpr.c:5472 0x94eacf cxx_eval_bare_aggregate /home/patrick/code/gcc-master/gcc/cp/constexpr.c:3836 0x941f0f cxx_eval_constant_expression /home/patrick/code/gcc-master/gcc/cp/constexpr.c:5930 0x944b74 cxx_eval_outermost_constant_expr /home/patrick/code/gcc-master/gcc/cp/constexpr.c:6486