https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89713
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization Version|unknown |9.0 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- We could add a GCC specific loop pragma, like #pragma GCC finite-loop to annotate such loops in the libstdc++ implementation. But if the user writes this then somehow the C++ frontend would need to detect that he wrote a finite loop and annotate the loop, so I'm not sure how practical this is. But I also doubt people write empty loops in practice? Thus how important is this really?