"Jonathan Wakely" <jwakely....@gmail.com> wrote: > On Fri, 26 May 2023 at 14:55, Stefan Kanthak <stefan.kant...@nexgo.de> wrote:
[...] >> NOT obvious is but that -m<feature> -march=<lowerISA> does not clear any >> <feature> not supported in <lowerISA>, i.e the last one does NOT win here. > > The last -march option selects the base set of instructions. The -mISA > options modify that base. You but missed the point, AGAIN: the modifications per -mISA and -mno-ISA persist, i.e. they are NOT reset by the last -march= option. Is this SOOOO hard to grok? Is this soooo hard to document? Stefan
