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missing AVX512 Intrinsics of Trigonometry

wzl
Beginner
‎11-13-2023 06:03 PM
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Hello! When I use the "_mm512_atan2_ps",  I get a error:  ‘_mm512_atan2_ps’ was not declared in this scope; did you mean ‘_mm512_and_ps’.  And I have enabled at compile time with -mavx512f.  How should I solve this problem.  The CPU I'm using is: model name : 11th Gen Intel(R) Core(TM) i7-11700 @ 2.50GHz.

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AdyT_Intel
Moderator
‎11-15-2023 12:33 AM
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There is no such instruction for calculating ATAN or similar instructions.

The Intel Intrinsic Guide specify this intrinsic as a "sequence". Which means: This intrinsic generates a sequence of instructions, which may perform worse than a native instruction. Consider the performance impact of this intrinsic.

This type of intrinsic might not be supported by all compilers or supported anymore.

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wzl
Beginner
‎11-15-2023 12:46 AM
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In response to AdyT_Intel

Thank you for reply. If I want to try to use it, can I do so by using an earlier version of the intel C/C++ compiler?

In response to AdyT_Intel
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