llvm dev - Jul 2014 - [LLVMdev] Hardware Random Numbers

Hello,

Does LLVM support an intrinsic for hardware-based random number generators
such as the one found in (
https://software.intel.com/en-us/articles/intel-digital-random-number-generator-drng-software-implementation-guide
)?

Thanks,
Billy Moses
MIT '18
TJHSST '14
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On Tue, Jul 1, 2014 at 6:01 AM, William Moses
<moses.williamsteven at gmail.com> wrote:
> Hello,
>
> Does LLVM support an intrinsic for hardware-based random number generators
> such as the one found in
>
(https://software.intel.com/en-us/articles/intel-digital-random-number-generator-drng-software-implementation-guide)?
I'm not aware of a generic instrinsic, but you can use the intel
specific ones. e.g. @llvm.x86.rdrand will give you a rdrand
instruction.

You can look at the IR emitted by Clang when using Intel's
_rdrand32_step intrinsics for example code.

- Ben
>
> Thanks,
> Billy Moses
> MIT '18
> TJHSST '14
>
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