torch-mlir/lib/Dialect/Torch
Ashay Rane a893c7d5cf
Add shape transfer function and lowering to linalg for aten.neg (#759)
* shape: add shape transfer function for aten.neg

Prior to this patch, the list of shape transfer functions did not
include `aten.neg`, which resulted in errors like below.

```
error: unsupported by backend lowering: tensor with unknown rank or dtype
note: see current operation: %0 = "torch.aten.neg"(%arg0) :
  (!torch.vtensor<[256,256],f32>) -> !torch.vtensor<*,f32>
note: this is likely due to a missing shape transfer function in shape_lib_gen.py
```

This patch fixes the problem by adding a shape transfer function to
reflect the point-wise nature of this operation.

* linalg: add translation of aten.neg operation

This patch adds a translation rule to lower `aten.neg` operations on
tensors to an `arith.negf` operation wrapped inside a `linalg.generic`
operation.  This patch also adds a rudimentary test.
2022-04-15 11:11:22 -07:00
..
IR Fix for 0-size dim inferred incorrectly. 2022-03-30 16:36:15 -07:00
Transforms Add shape transfer function and lowering to linalg for aten.neg (#759) 2022-04-15 11:11:22 -07:00
Utils Fixes https://github.com/llvm/torch-mlir/issues/751 where `torch.bool` is parsed as signless `i1`. (#752) 2022-04-13 12:28:27 -05:00
CMakeLists.txt E2e support for aten.softmax.int and aten.embedding 2021-10-18 17:57:45 -04:00