Am Wed, 13 Apr 2016 04:14:48 -0700 schrieb Walter Bright <newshou...@digitalmars.com>:
> On 4/13/2016 3:58 AM, Marco Leise wrote: > > How about this style as an alternative?: > > > > immutable bool mmx; > > immutable bool hasPopcnt; > > > > shared static this() > > { > > import gcc.builtins; > > mmx = __builtin_cpu_supports("mmx" ) > 0; > > hasPopcnt = __builtin_cpu_supports("popcnt") > 0; > > } > > > > Please do not invent an alternative interface, use the one in core.cpuid: > > http://dlang.org/phobos/core_cpuid.html#.mmx Yes, they are all @property and a substitution with direct access to the globals will work around GDC's lack of cross-module inlining. Otherwise these feature checks which might be used in hot code, are more costly than they should be. I hate when things get in the way of efficiency. :) -- Marco