On Sun, 5 Jun 2022, Ozkan Sezer wrote:
On 6/5/22, LIU Hao wrote:
在 2022-06-05 19:30, Ozkan Sezer 写道:
On 6/5/22, LIU Hao wrote:
在 2022-06-03 22:03, Ozkan Sezer 写道:
A quick x64 build ran under win10 yielded the same results.
As far as I can tell, `CVTSD2SI` should be preferred to `FISTP`
On 6/5/22, LIU Hao wrote:
> 在 2022-06-05 19:30, Ozkan Sezer 写道:
>> On 6/5/22, LIU Hao wrote:
>>> 在 2022-06-03 22:03, Ozkan Sezer 写道:
A quick x64 build ran under win10 yielded the same results.
>>>
>>> As far as I can tell, `CVTSD2SI` should be preferred to `FISTP` for
>>> `float`
>
在 2022-06-05 19:30, Ozkan Sezer 写道:
On 6/5/22, LIU Hao wrote:
在 2022-06-03 22:03, Ozkan Sezer 写道:
A quick x64 build ran under win10 yielded the same results.
As far as I can tell, `CVTSD2SI` should be preferred to `FISTP` for `float`
and `double`. The X87
implementation was added in 2007 a
On 6/5/22, LIU Hao wrote:
> 在 2022-06-03 22:03, Ozkan Sezer 写道:
>>
>> A quick x64 build ran under win10 yielded the same results.
>>
>
> As far as I can tell, `CVTSD2SI` should be preferred to `FISTP` for `float`
> and `double`. The X87
> implementation was added in 2007 and has not been updated s
在 2022-06-03 22:03, Ozkan Sezer 写道:
A quick x64 build ran under win10 yielded the same results.
As far as I can tell, `CVTSD2SI` should be preferred to `FISTP` for `float` and `double`. The X87
implementation was added in 2007 and has not been updated since ever.
--
Best regards,
LIU Hao
>> For the other functions, do the SSE intrinsics honor the rounding
>> mode/direction that you've set fesetround()?
>>
>> // Martin
>
> Documentation [1] doesn't seem to have such detail.
>
> Haven't booted to windows, but ran the following on i686 linux:
>
> #include
> #include
> #include
> #i
On 6/3/22, Martin Storsjö wrote:
>
> For long double, I would presume that you'd still need to use x87, as SSE
> can't handle 80 bit long doubles, right? (Or converting down to a plain
> double first, then using SSE, probably also works - but I guess that also
> might generate x87 instructions.)
On Fri, 3 Jun 2022, Ozkan Sezer wrote:
Why are we using x87 asm instead of sse2 intrinsics for lrint/lrintf ?
E.g.: why not do something like the following?
diff --git a/mingw-w64-crt/math/lrintl.c b/mingw-w64-crt/math/lrintl.c
index d710fac..9f1be51 100644
--- a/mingw-w64-crt/math/lrintl.c
+++
Why are we using x87 asm instead of sse2 intrinsics for lrint/lrintf ?
E.g.: why not do something like the following?
diff --git a/mingw-w64-crt/math/lrint.c b/mingw-w64-crt/math/lrint.c
index ec80e4e..7831446 100644
--- a/mingw-w64-crt/math/lrint.c
+++ b/mingw-w64-crt/math/lrint.c
@@ -5,10 +5,16
