On Sat, Nov 03, 2007 at 03:31:14AM +1100, skaller wrote: > On Fri, 2007-11-02 at 07:39 -0700, Ian Lance Taylor wrote: > > I think you need to look at the TLS access code before deciding that > > it has bad performance. > > You already said it costs a register? That's a REALLY high cost > to pay to support badly designed software.
Not if you have a lot of registers (anything modern but i386) or if the register can not really be used for anything else (%fs on i386 for instance). OG.