[Bug] Chapel compilation with rocm 6.2 hits LLVM assertion in developer builds

[jabraham17]

Any Chapel compilation with ROCm 6.2 will hit an LLVM assertion.

third-party/llvm/install/linux64-x86_64/include/llvm/IR/GlobalValue.h:255: void llvm::GlobalValue::setVisibility(VisibilityTypes): Assertion `(!hasLocalLinkage() || V == DefaultVisibility) && "local linkage requires default visibility"' failed.

This occurs with CHPL_LLVM=bundled, CHPL_GPU=amd, CHPL_LOCALE_MODEL=gpu, and ROCm 6.2 being used. This is only an issue when the bundled LLVM was built with asserts on, either by CHPL_DEVELOPER being set in the environment or directly via make ASSERTS=1.

This should not effect most users, it should only effect developers

[jabraham17]

Note: this seems to be a new issue with main that was not present in Chapel 2.2

[bonachea]

This also currently affects Spack users building with chapel+rocm~developer, but that's due to a defect in the Spack recipe silently/incorrectly setting CHPL_DEVELOPER=false which is interpreted as enabling assertions in LLVM.

That defect in the Spack recipe is fixed in the Chapel 2.3 Spack PR