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Re: PATCH: Add --alt-nops=short|long to x86/x86-64 assemblers
> > FWIW I've found it more useful to add .cpu and/or .arch assembly
> > directives. Handling the gcc spec strings for commandline controls and
> > making sure the gcc and gas defaults are consistent can get painful,
> > especially if gcc has several different ways of specifying the cpu
> > variant.
>
> x86/x86-64 assembler support .arch. But I don't think gcc uses it. I
> am not sure how well it will work with existing code bases if gcc
> starts generating .arch.
That's what configure checks are for.
Paul