Eric Botcazou wrote:
>> I just need to save it. It needs to be saved so that the FPU
>> pipeline is flushed.
>
> Then why not save it just below the stack pointer?
>
Wow, yes, that seems the right way! How simple, Thanks.
> I just need to save it. It needs to be saved so that the FPU
> pipeline is flushed.
Then why not save it just below the stack pointer?
--
Eric Botcazou
Eric Botcazou wrote:
>> I would like to implement a compiler fix for a SPARC-cpu variant
>> that does the following:
>> After each "fdivs" (SPARC single-float division) save the destination
>> FPU register to a stack memory location.
>
> Do you need to reload it afterward or just save it?
>
I
> I would like to implement a compiler fix for a SPARC-cpu variant
> that does the following:
> After each "fdivs" (SPARC single-float division) save the destination
> FPU register to a stack memory location.
Do you need to reload it afterward or just save it?
--
Eric Botcazou
Hello,
I would like to implement a compiler fix for a SPARC-cpu variant
that does the following:
After each "fdivs" (SPARC single-float division) save the destination
FPU register to a stack memory location.
The sparc.md definition of fdivs is this one:
(define_insn "divsf3"
[(set (match_oper
