Saving to 32 bits of GPRs in signal context

Steve Munroe sjmunroe at us.ibm.com
Thu May 31 07:41:45 EST 2007


Gabriel Paubert <paubert at iram.es> wrote on 05/30/2007 04:02:12 PM:

>
> In 32 bit mode, 64 bit divides use a libcall for example. But the
> libgcc routine can and should use the 64 bit instructions. There are
> many other libcall cases that would benefit from a libgcc compiled
> to use 64 bit instructions (64 bit int to floating point conversions and
> back). This indirectly affects a lot of functions.
>

That is not an issue. The ISA 2.0 removed the useage restriction for fctid,
fctidz, and fcfid in 32-bit implementations.





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