Hi The gcc Arm compiler aarch64-linux-gnu (v14) provides the following Arm intrinsics header file: \usr\lib\gcc\aarch64-linux-gnu\14\include\arm_sve.h However, this header file uses a pragma to generate the definitions: /* NOTE: This implementation of arm_sve.h is intentionally short. It does not define the SVE types and intrinsic functions directly in C and C++ code, but instead uses the following pragma to tell GCC to insert the necessary type and function definitions itself. The net effect is the same, and the file is a complete implementation of arm_sve.h. */ #pragma GCC aarch64 "arm_sve.h" I don't understand how this works. I would like to inspect the actual definitions of the intrinsics. Is it possible to view the actual definitions? Best regards David