[CIR] Upstream CmpOp (#133159)
This patch adds support for comparison operators with ClangIR, both
integral and floating point.
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Co-authored-by: Morris Hafner <mhafner@nvidia.com>
Co-authored-by: Henrich Lauko <xlauko@mail.muni.cz>
Co-authored-by: Andy Kaylor <akaylor@nvidia.com>
