Alex Zinenko d7e6b33e93 Convert MemRefCastOp to the LLVM IR dialect ... Add support for converting `memref_cast` operations into the LLVM IR dialect. This goes beyond want is currently implemented in the MLIR standard ops to LLVM IR translation, but follows the general principles of the memref descriptors. A memref cast creates a new descriptor containing the same buffer pointer but a potentially different number of dynamic sizes (as many as dynamic dimensions in the target memref type). The lowering copies the buffer pointer to the new descriptor and inserts dynamic sizes to it. If the size is static in the source type, a constant value is inserted as the dynamic size, otherwise a dynamic value is copied from the source descriptor, taking into account the difference in dynamic size positions in the descriptor. PiperOrigin-RevId: 233082035		2019-03-29 16:22:38 -07:00
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IR	Change derived type storage objects to define an 'operator==(const KeyTy &)' instead of converting to the KeyTy. This allows for handling cases where the KeyTy does not provide an equality operator on itself.	2019-03-29 15:19:11 -07:00
Transforms	Convert MemRefCastOp to the LLVM IR dialect	2019-03-29 16:22:38 -07:00