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| author |  Mark Heffernan <meheff@google.com> | 2018-06-14 14:51:26 -0700 |
|---|---|---|
| committer |  TensorFlower Gardener <gardener@tensorflow.org> | 2018-06-14 14:54:32 -0700 |
| commit | f01d25471dbe26f0a1116009badc4af169f82b02 (patch) | |
| tree | ddc3ff3aff6b69d49e505c92842e8ed20e413c76 /tensorflow/compiler/xla/literal_util.h | |
| parent | 840aeb0ce9bd0f0a1c275edc9fe6d51eff5cf33f (diff) | |
Add support for TOKEN type to CPU/GPU backends.
TOKENs will be used for ordering side-effecting operations. They are not materialized but can be contained in tuples and flow into and out of computations. This CL adds a trivial representation for the cpu and gpu backends to support TOKENs and modifies copy insertion to avoid making copies of tokens.
This also adds a Literal TOKEN which is required for the interpreter backend.
PiperOrigin-RevId: 200623120
Diffstat (limited to 'tensorflow/compiler/xla/literal_util.h')
| -rw-r--r-- | tensorflow/compiler/xla/literal_util.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tensorflow/compiler/xla/literal_util.h b/tensorflow/compiler/xla/literal_util.h index bcecbcccb7..37ca8ea9f1 100644 --- a/tensorflow/compiler/xla/literal_util.h +++ b/tensorflow/compiler/xla/literal_util.h @@ -917,6 +917,9 @@ class Literal : public LiteralBase { return MakeTupleOwned(std::move(v)); } + // Create a constant token literal. Token types have no value. + static std::unique_ptr<Literal> CreateToken(); + // Returns a vector containing the tuple elements of this Literal as separate // Literals. This Literal must be tuple-shaped and can be a nested tuple. The // elements are moved into the new Literals; no data is copied. Upon return |