[libc-commits] [libc] [openmp] [amdgpu][openmp] Treat missing TIMESTAMP_FREQUENCY as non-fatal (PR #70987)

[Jon Chesterfield via libc-commits]

JonChesterfield wrote:

The libc loader already treats the symbol on the GPU as optional (since it might be deadstripped), this patch extends libc to likewise use zero for the frequency if the capability is missing from hsa instead of refusing to run

https://github.com/llvm/llvm-project/pull/70987