Error when using Embedded Coder in Simulink: "Toolchain 'LCC-win64 v2.4.1 | gmake (64-bit Windows)' does not support SIMD 'SSE2' intrinsics on Windows"

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Tim Nicolas Klein 2023-11-15

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https://ww2.mathworks.cn/matlabcentral/answers/2047772-error-when-using-embedded-coder-in-simulink-toolchain-lcc-win64-v2-4-1-gmake-64-bit-windows

评论： 성진 2024-2-23

Hello,

i want to compile a simulink file to C-Code. When i click on Generate code i actually receive a code in C but the diagnostic viewer shows the following Error:

"Toolchain 'LCC-win64 v2.4.1 | gmake (64-bit Windows)' does not support SIMD 'SSE2' intrinsics on Windows. Select a different toolchain that does support SIMD 'SSE2' intrinsics."

At this point i don't even know what that means or if my code works anyways. What exactly is the problem here and how can i fix it (if i need to fix it, as i said i actually receive a file with C-Code).

Thank you in advance!

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Answer 1

Yousef 2023-11-15

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https://ww2.mathworks.cn/matlabcentral/answers/2047772-error-when-using-embedded-coder-in-simulink-toolchain-lcc-win64-v2-4-1-gmake-64-bit-windows#answer_1353197

The error you're experiencing in MATLAB Simulink when generating C code is due to the incompatibility of your current toolchain, 'LCC-win64 v2.4.1 | gmake (64-bit Windows)', with SIMD 'SSE2' intrinsics, which are processor features for efficient data processing. To resolve this, you need to select a different toolchain in MATLAB that supports SSE2 intrinsics, found under the Code Generation settings in your Simulink model's Configuration Parameters. If you don't have a compatible toolchain, installing a new compiler like Microsoft Visual C++ that supports these features is necessary. It's also important to evaluate whether your model genuinely requires SSE2 support for optimization and to thoroughly test the generated C code to ensure its functionality and performance.