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29 Commits

Author SHA1 Message Date
Benjamin Kramer edf5ec8084 Integrate LLVM at llvm/llvm-project@cb65419b1a 
Updates LLVM usage to match
[cb65419b1ac0](https://github.com/llvm/llvm-project/commit/cb65419b1ac0)

PiperOrigin-RevId: 375915516
 2021-05-26 04:47:24 -07:00
Stella Laurenzo 0fe07e3814 Separate CHLO transforms for expanding compositions and lowering broadcasts. 
* The former is typically invariant regardless of backend.
* The latter may need to be done differently depending on capabilities of the lowering target.

PiperOrigin-RevId: 374492924
 2021-05-18 13:33:59 -07:00
A. Unique TensorFlower 2af1796194 Integrate LLVM at llvm/llvm-project@5c7b43aa82 
Updates LLVM usage to match
[5c7b43aa8298](https://github.com/llvm/llvm-project/commit/5c7b43aa8298)

PiperOrigin-RevId: 373028739
 2021-05-10 15:46:34 -07:00
A. Unique TensorFlower 4d41b11f3b Integrate LLVM at llvm/llvm-project@671f0e2e18 
Updates LLVM usage to match
[671f0e2e189c](https://github.com/llvm/llvm-project/commit/671f0e2e189c)

PiperOrigin-RevId: 371011125
 2021-04-28 16:37:53 -07:00
A. Unique TensorFlower 890a79641e Integrate LLVM at llvm/llvm-project@37e1458128 
Updates LLVM usage to match
[37e145812855](https://github.com/llvm/llvm-project/commit/37e145812855)

PiperOrigin-RevId: 370020161
 2021-04-22 22:57:08 -07:00
Benjamin Kramer ca4034b56e [mlir][hlo] Make select ready for dynamic shapes (ranked only for now) 
Move tf.SelectV2 broadcast lowering to a chlo.broadcast_select op, and lower it
to broadcasts on mhlo from there.

PiperOrigin-RevId: 358179975
 2021-02-18 08:08:40 -08:00
A. Unique TensorFlower 220deb3709 [MLIR][CHLO] Add legalization for `chlo.polygamma` to MHLO 
PiperOrigin-RevId: 357954624
 2021-02-17 08:33:01 -08:00
Stephan Herhut 6cd1875ee4 Implement lowering of chlo::zeta to mhlo dialect. 
PiperOrigin-RevId: 355395581
 2021-02-03 07:50:05 -08:00
Stephan Herhut e61ef86fdb Add zeta and broadcasting_zeta to chlo dialect. 
PiperOrigin-RevId: 354500879
 2021-01-29 03:22:52 -08:00
A. Unique TensorFlower b0bf2ef45b Integrate LLVM at llvm/llvm-project@c3acda0798 
Updates LLVM usage to match
[c3acda0798f9](https://github.com/llvm/llvm-project/commit/c3acda0798f9)

PiperOrigin-RevId: 348896724
 2020-12-23 23:53:54 -08:00
Tres Popp 76b30fd426 Move unranked chlo lowering to transform_unranked_hlo. 
Additionally:
- Forward listeners through new if/else op builders.
This corrects an error that led to incomplete legalization of broadcasted op
lowering.
- Use OpConversionPattern to ensure up to date operand values are used.
PiperOrigin-RevId: 339838833
 2020-10-30 02:56:44 -07:00
Stephan Herhut d986bd7ad7 Use tensor_cast instead of mhlo::reshape in the lowering of unranked binary operations. 
We know that the value already is a scalar and we just want to update the type, so no need to reshape anything.

PiperOrigin-RevId: 336252315
 2020-10-09 01:46:48 -07:00
A. Unique TensorFlower 3736c5542f [MLIR][KernelGen] Fix unranked codegeneration in kernel generator 
PiperOrigin-RevId: 335847086
 2020-10-07 05:39:55 -07:00
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 b22f2f0eea Integrate LLVM at llvm/llvm-project@52f0837778 
Updates LLVM usage to match
[52f0837778b6](https://github.com/llvm/llvm-project/commit/52f0837778b6)

PiperOrigin-RevId: 330939173
 2020-09-10 08:14:23 -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
Stephan Herhut 1b0eb4baa7 Do not mandate the result type of shape computations but have it be inferred from context. 
The computation of a broadcasted shape forced the use of the shape type unnecessarily, which blocked further canonicalizations.

PiperOrigin-RevId: 323783998
 2020-08-03 19:28:12 -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
A. Unique TensorFlower c8bb0ff54d Integrate LLVM at https://github.com/llvm/llvm-project/commit/f233b92f92a6 
PiperOrigin-RevId: 321454533
 2020-07-30 22:34:14 +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 fa057cc0bc Move HLO tests to `third_party/tensorflow/compiler/mlir/hlo/` 
Also add a localized `mlir-hlo-opt` binary for the testing of
tensorflow/compiler/mlir/hlo/... ; this directory is intended to be self-contained
and depend only on MLIR.

PiperOrigin-RevId: 319878984
 2020-07-30 22:32:45 +00:00