llvm dev - Mar 2014 - [LLVMdev] Clang does not use C library intrinsics?

Hi folks,

Recently I happened to use some LLVM’s intrinsics in my own project and would
like to verify the correctness the intrinsics. I did several small c++ tests
using the math library, and I found out that clang only compile “pow" to
its standard C library intrinsics. I am curious about the reason and wonder if
some of the intrinsic is not working correctly in the current version?

thanks,
chen

On Thu, Mar 13, 2014 at 7:30 PM, Chen Li <meloli87 at gmail.com>
wrote:
> Hi folks,
>
> Recently I happened to use some LLVM's intrinsics in my own project and
would like to verify the correctness the intrinsics. I did several small c++
tests using the math library, and I found out that clang only compile
"pow" to its standard C library intrinsics. I am curious about the
reason and wonder if some of the intrinsic is not working correctly in the
current version?
>
> thanks,
> chen
Have you tried using -fno-builtin? Also, this sounds like a question
better suited for cfe-dev.

Cheers,
Jevin