[SYCL][NativeCPU] Limit generic ABI to builtins. #19564
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In intel#17408, NativeCPU became a target in order to be able to pick the ABI for its own libclc functions consistently, without having targets affect this. This was, and is, required to be able to use libclc independent of target and target options. However, it breaks some calls into libc. Therefore, this PR allows the calling convention to be explicitly specified, ensures it is specified for any libclc functions, and ensures it is not specified for any libc functions. Fixes the SYCL-E2E acos, cmath, and exp-std-complex tests.
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This needs compiler tests, |
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Just a heads up that after today I will be on holiday. I am not expecting reviews to be done today, that is fine, but it will be a little while before I'll be able to respond to any issues or concerns. |
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In #17408, NativeCPU became a target in order to be able to pick the ABI for its own libclc functions consistently, without having targets affect this. This was, and is, required to be able to use libclc independent of target and target options. However, it breaks some calls into libc. Therefore, this PR allows the calling convention to be explicitly specified, ensures it is specified for any libclc functions, and ensures it is not specified for any libc functions.
Fixes the SYCL-E2E acos, cmath, and exp-std-complex tests.