tree ca9aab61da2b5511d229e4aae12a33d6a92090b7
parent 2a13f69c3a0eecca0cf4f1891cf99d26057845f8
author George Karpenkov <cheshire@google.com> 1566424353 -0700
committer TensorFlower Gardener <gardener@tensorflow.org> 1566430587 -0700

[MLIR/XLA] Preliminary version of the L(late/lowered)HLO dialect.

LHLO is a lower version of HLO where the buffer assignment has been performed
and is encoded into a dialect: operations are no longer functional,
and explicitly write to memory.

Dialect, file and class names are still subject to change, as a larger
refactoring is necessary.

Common items from HLO and LHLO are refactored into b(base)xla.td file:
currently, it's all the helper datatypes, as well as summary and description
for each operation.

PiperOrigin-RevId: 264698441