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18 Commits

Author SHA1 Message Date
Stephan Herhut 2aa07b0091 Insert explicit casts to model extra shape knowledge for unranked chlo transform 
When transforming unranked binary operations from CHLO to HLO, we insert `shape.broadcast` operations. Due to context, we know that the result of the `shape.broadcast` operation has a static shape. Instead of modelling this in the type of the broadcast operation itself, which is illegal,  we now use an explicit cast.

PiperOrigin-RevId: 331989879
 2020-09-16 06:14:49 -07:00
A. Unique TensorFlower a6fdebdc6c [MLIR] Lower `chlo.constant_like` to MHLO 
Lower `chlo.constant_like` to a constant and, if needed, a broadcast.

PiperOrigin-RevId: 331964137
 2020-09-16 02:41:44 -07:00
A. Unique TensorFlower 48022987ce [XLA][MLIR] Lower `tf.Tan` and `tf.Sin` to MLHLO 
Add `tan` op and lowering to CHLO dialect, move CHLO lowerings to
`chlo_legalize_to_hlo_patterns` and extend missing patterns.

PiperOrigin-RevId: 331506094
 2020-09-14 02:34:52 -07:00
A. Unique TensorFlower a7a7184eb6 [XLA][MLIR] Lower `tf.Tan` and `tf.Sin` to MLHLO 
Add `tan` op and lowering to CHLO dialect, move CHLO lowerings to
`chlo_legalize_to_hlo_patterns` and extend missing patterns.

PiperOrigin-RevId: 331128170
 2020-09-11 05:05:58 -07:00
A. Unique TensorFlower 90927f6b53 [XLA][MLIR] Lower `tf.Tan` and `tf.Sin` to MLHLO 
Add `tan` op and lowering to CHLO dialect, move CHLO lowerings to
`chlo_legalize_to_hlo_patterns` and extend missing patterns.

PiperOrigin-RevId: 331125286
 2020-09-11 04:39:28 -07:00
A. Unique TensorFlower a68a16cdc7 [MLIR][XLA] Allow for choice of safe/unsafe variant in broadcast utils 
Create safe or unsafe variants of `shape.broadcast` depending on the context.
The representation by means of an extent tensor is only legal if the operands
are known to be broadcastable. Currently, there is no use in a safe context in
the codebase but it will be used for shape inference eventually.

PiperOrigin-RevId: 325228073
 2020-08-07 22:16:11 -07:00
A. Unique TensorFlower 4372124362 [MLIR][XLA] Allow for choice of safe/unsafe variant in broadcast utils 
Create safe or unsafe variants of `shape.broadcast` depending on the context.
The representation by means of an extent tensor is only legal if the operands
are known to be broadcastable. Currently, there is no use in a safe context in
the codebase but it will be used for shape inference eventually.

PiperOrigin-RevId: 325079842
 2020-08-05 12:43:29 -07:00
A. Unique TensorFlower 37c36a4389 [MLIR][XLA] Allow for choice of safe/unsafe variant in broadcast utils 
Create safe or unsafe variants of `shape.broadcast` depending on the context.
The representation by means of an extent tensor is only legal if the operands
are known to be broadcastable. Currently, there is no use in a safe context in
the codebase but it will be used for shape inference eventually.

PiperOrigin-RevId: 325056915
 2020-08-05 11:09:23 -07:00
Thomas Joerg 735ae2838c Integrate LLVM at llvm/llvm-project@cd4e8d7f6f 
Updates LLVM usage to match
[cd4e8d7f6f5e](https://github.com/llvm/llvm-project/commit/cd4e8d7f6f5e)

PiperOrigin-RevId: 324173542
 2020-08-03 19:29:29 -07:00
Tres Popp cce4bddf4b Remove unnecessary conversions between Shape and ExtentTensor. 
PiperOrigin-RevId: 323981215
 2020-08-03 19:29:04 -07:00
Tres Popp ffef8d6593 Support CHLO->LHLO lowering for broadcasting operations with both inputs unranked. 
PiperOrigin-RevId: 323960733
 2020-08-03 19:28:52 -07:00
Mehdi Amini cd01bb4c4e More cleanup in mlir-hlo to prepare for the standalone build 
Shuffle files around, use TableGen to register passes, and introduce
a `mlir-hlo-opt.cpp` file to hold the main entry point of the -opt tool
and stop relying on static registration for dialect/passes.

PiperOrigin-RevId: 323674455
 2020-08-03 19:28:00 -07:00
Thomas Joerg 739758f9cc Integrate LLVM at llvm/llvm-project@eed333149d 
Updates LLVM usage to match
[eed333149d17](https://github.com/llvm/llvm-project/commit/eed333149d17)

PiperOrigin-RevId: 323354988
 2020-08-03 19:27:25 -07:00
Tres Popp 4251630426 Support CHLO broadcasting operations between scalar and unranked tensors. 
This is done through reshaping the unranked tensor into a 1D ranked tensor which will result in a safe broadcast/indexing logic when the other operand is a scalar.

PiperOrigin-RevId: 322553661
 2020-07-30 22:34:40 +00:00
Mehdi Amini 506ddd9c4a Cleanup build rule names in compiler/mlir/hlo to remove the redundant/obsolete xla_ prefix 
PiperOrigin-RevId: 320320140
 2020-07-30 22:33:29 +00:00
Mehdi Amini 94dcb90d38 Rename xla_chlo dialect into chlo 
Following on the plan of isolating the compiler/mlir/hlo directory.

PiperOrigin-RevId: 320212018
 2020-07-30 22:33:16 +00:00
Mehdi Amini 8900222fed Rename `xla_hlo` dialect to `mhlo` 
This is part of the current refactoring of the HLO related dialect.
`xla_hlo` will be reintroduced in a new form later.

PiperOrigin-RevId: 319916753
 2020-07-30 22:32:50 +00:00
Mehdi Amini 31dc1b21eb Move XLA-independent transforms to the new MLIR-HLO directory 
This is as straighforward as possible, more cleanup/rewrite to come.

PiperOrigin-RevId: 319849713
 2020-07-30 22:32:40 +00:00