[PATCH] S/390: Fix two issues with the IFUNC optimized mem* routines

[Richard Henderson]

On 09/06/2012 06:09 AM, Andreas Krebbel wrote:
> I tried this when implementing the z10 support. Unfortunately in most
> cases using a GOT pointer is faster since all the instructions
> support the <disp>(r12) address format and therefore can directly 
> deal with the GOT slot. Not having a GOT pointer requires more
> additional load relatives to be put into the code.

You mean like add, for combining the loaded address with some
other offset?  I'm surprised that happens often enough to have
a noticeable effect.  Unless there's some secondary effect I'm
not considering?


r~