17.10.2016 13:49, Michael Tokarev wrote: > 17.10.2016 13:39, Michael Tokarev wrote: > >> (cc is gcc 6.2.0) >> >> I've no idea which -march is the default and what choices are available. > > $ gcc -march=? > gcc: error: unrecognized argument in option '-march=?' > gcc: note: valid arguments to '-march=' are: g5 g6 native z10 z13 z196 > z9-109 z9-ec z900 z990 zEC12 > > I guess g5 is the default?
No it is not. g5 and g6 are deprecated. z900 is the default, and this one produces the error with `lt' instruction. All other variants works fine. Thanks, /mjt
