Are these interesting, ie should I file them, or is it too early, and the basic gdc functionality has abs priority?
I think it's too early to worry about these kind of optimizations, FWIW. Anyway, just ran into this, while trying for the very first time to statically link a D app: > lto1: internal compiler error: in lto_reissue_options, at lto-opts.c:418 > Please submit a full bug report, > with preprocessed source if appropriate. > See <https://bitbucket.org/goshawk/gdc/issues> for instructions. > lto-wrapper: gdc returned 1 exit status > /usr/bin/ld: lto-wrapper failed > collect2: ld returned 1 exit status artur