[clang] [llvm] [Driver][AMDGPU][HIP][SPIRV] Disable optimizations for AMDGCN SPIR-V (PR #154765)

[Alex Voicu via llvm-commits]

AlexVlx wrote:

We've had some internal discussion around this, we will rely on this mechanism whilst we implement support for what we want in Clang.

https://github.com/llvm/llvm-project/pull/154765