[clang] [compiler-rt] [llvm] [PGO][Offload] Allow PGO flags to be used on GPU targets (PR #94268)

[Joseph Huber via llvm-commits]

jhuber6 wrote:

I *really* wish someone from NVIDIA would just fix this stupid limitation already. @EthanLuisMcDonough This type of stuff shows up for things like this. Any way we can modify the source code to work around this? It's fine to put it in a separate global.
```
int arr[] = {1, arr[0]};
```

https://github.com/llvm/llvm-project/pull/94268