Re: [Qemu-devel] [PATCH 4/7] target-arm: Refactor int-float conversions

[Paul Brook]

> The Neon versions of int-float conversions need their own helper routines
> because they must use the "standard FPSCR" rather than the default one.
> Refactor the helper functions to make it easy to add the neon versions.
> While we're touching the code, move the helpers to op_helper.c so that
> we can use the global env variable rather than passing it as a parameter.

IMO this is going in the wrong direction.  We should in aiming for less 
implicit accesses to cpu state, not more.

Maybe better would be to explicitly pass a pointer the fp status. That way you 
don't even need separate VFP and NEON variants of these routines.

Paul