kfjahnke issues

Results 29 issues of


                                            kfjahnke

unexpected result of short integer SimdArray division

clang++ 7 miscompiles AVX, AVX2 with 1.3 branch

Ubuntu 19.04 just came out, so I gave it a spin. It contains the vc-dev package in version 1.3.4 and clang++ is now version 7 by default. These two don't...

coding a replacement for Vc::SimdArray with highway

I have coded an arithmetic template class mimicking Vc::SimdArray to allow a tentative port of my application [lux](https://bitbucket.org/kfj/pv) from Vc to highway. The stand-in type is not complete, but it...

integer division/rdiv, modulo, atan2

Is there code to do integer division/remainder division and/or modulo? And I'd also like to see atan2!

'goading' - platform-agnostic SIMD relying on autovectorization of small loops

As a follow-up to personal communication with @jan-wassenberg, I'd like to propose a technique here which I implemented as an intermediate layer between code intending to 'behave' in a SIMD...

clang++: abs of float vector comes out zero

clang++ (clang version 10.0.0-4ubuntu1) yields zero when abs() is called with a float vector. Here's code to reproduce the error: ```cpp #include #include int main ( int argc , char...

sin and cos of std::simd come out wrong with clang++

missing gather/scatter

Going through the 'Working Draft, C++Extensions forParallelism Version 2', I could not find any reference to gather/scatter functions. How is this supposed to be done? Additionally, I think that strided...

enhancement

using a cppyy-based python module to pull in highway SIMD code

I have posted a [lengthy post](https://github.com/google/highway/issues/641#issuecomment-1125700070) on highway's issue tracker concerning the use of my cppyy-based [b-spline module](https://bitbucket.org/kfj/python-vspline), modified to use highway instead of Vc for SIMD code. I'm posting...

SIMD support

Dear group! Working on my b-spline library [vspline](https://bitbucket.org/kfj/vspline), I have used SIMD data types together with vigra. I have investigated several approches to SIMD programming by using/defining several SIMD data...