Smit Hinsu c9b0540b9c Make identity cast operations with the same operand and result types legal ... Instead, fold such operations. This way callers don't need to conditionally create cast operations depending on if a value already has the target type. Also, introduce areCastCompatible to allow cast users to verify that the generated op will be valid before creating the operation. TESTED with unit tests -- PiperOrigin-RevId: 245606133		2019-05-06 08:19:37 -07:00
mlir	Make identity cast operations with the same operand and result types legal	2019-05-06 08:19:37 -07:00