On Mon, Nov 12, 2018 at 03:52:29PM +0100, Andreas Schwab wrote: > On Nov 12 2018, Michael Matz <m...@suse.de> wrote: > > > Wouldn't this also break compiling code that contains power9 instructions > > but guarded by runtime tests to only be executed on power9 machines? That > > seems a valid usecase, and it'd be bad if the assembler fails to compile > > such. (You can't use -mcpu=power9 as work around as the other > > unguarded code is not supposed to be using power9 insns). > > You'll need to put .machine directives around them.
My worry with that is there may be too much legacy code that does not do this :-( Segher
