Added LLVM ops and lowering phases from standard dialect.

tensorflow / mlir

"Multi-Level Intermediate Representation" Compiler Infrastructure

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Closed dfki-jugr closed 4 years ago

dfki-jugr commented 4 years ago

Added LLVM ops and lowering phases from standard dialect for FAbs, FCeil, Cos, FNeg, CopySign and Tanh.

Added test cases for the newly added LLVM operations and lowering features.

ftynse commented 4 years ago

please do not merge this until the concerns on translation are addressed.