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9c03662748
Dexter currently accepts two possible arguments to determine the binary used for testing; either --builder <builder> (and optionally compiler/linker flags) to build the binary, or --binary <binary> to use the provided binary directly. If both are passed, then --binary overrides --builder; if neither are passed, then an error is raised. This patch instead puts these arguments into a required mutually exclusive argument group, so that an error is automatically raised by argparse if both or neither are given. As an additional change, the --cflags and --ldflags will now raise a warning if they are passed without the --builder flag, as they are meaningless if Dexter is using a pre-built binary. Reviewed By: Orlando Differential Revision: https://reviews.llvm.org/D109833