Re: Inline assembler fallback for _FPU_SETCW() missing in MINGW libraries (issue 577450043 by address@hidden)

[David Kastrup]

Dan Eble <address@hidden> writes:

> On Feb 1, 2020, at 05:05, David Kastrup <address@hidden> wrote:
>> 
>> Frankly, I think that it would be better if our Windows executables just
>> moved to 64bit but that seems like the more complicated option yet. And
>> 32bit systems kept around a whole lot longer even after processors
>> became 64bit-capable because they tended to require less memory.
>
> You provided a lot of good information in your post, but the
> conclusion was not entirely clear.
> Are you suggesting requiring SSE2 at this time?

Yes.  It appears to get used anyway for 64bit executables, and it seems
safe enough to demand it for 32bit executables.

For SSE there would be the danger of libraries stomping over the
registers that share memory with the FPU stack, but I think that SSE2 is
not affected.

-- 
David Kastrup