Remove ENABLE_OFFLOAD_CLANG_DEBUG_O3 option in CMake and raise Clang minimal version to 16 when using offload #5129
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Proposed changes
I got nvlink failure when using llvm 15 but 16 was OK. So raise the minimal version to 16 when using offload.
Closes #5127. Debug build works fine with clang 16 without -O3.
What type(s) of changes does this code introduce?
Does this introduce a breaking change?
What systems has this change been tested on?
epyc-server
Checklist