With a code like in constexpr.cc
the outputted llvm assember for the main
function
looks like
Compiled with clang++ -S -emit-llvm -std=c++11 constexpr.cc
define i32 @main() uwtable ssp {
%1 = call %"class.std::basic_ostream"* @_ZNSolsEi(%"class.std::basic_ostream"* @_ZSt4cout, i32 7)
%2 = call %"class.std::basic_ostream"* @_ZNSolsEPFRSoS_E(%"class.std::basic_ostream"* %1, %"class.std::basic_ostream"* (%"class.std::basic_ostream"*)* @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)