Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[Frontend][TFLite] Try Infer the value of shape expr to avoid dynamic #12313

Merged
merged 1 commit into from
Aug 10, 2022
Merged

[Frontend][TFLite] Try Infer the value of shape expr to avoid dynamic #12313

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
18 changes: 16 additions & 2 deletions python/tvm/relay/frontend/tflite.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@
from ..backend.name_transforms import sanitize_name
from .common import ExprTable
from .common import infer_shape as _infer_shape
from .common import lstm_cell, to_int_list, shape_of
from .common import lstm_cell, to_int_list, shape_of, try_infer_value
from .tflite_flexbuffer import FlexBufferDecoder

__all__ = ["from_tflite"]
Expand Down Expand Up @@ -599,7 +599,21 @@ def convert_reshape(self, op):
if len(input_tensors) == 2:
shape_tensor = input_tensors[1]
if self.has_expr(shape_tensor.tensor_idx):
target_shape = self.get_expr(shape_tensor.tensor_idx)
target_expr = self.get_expr(shape_tensor.tensor_idx)
target_value, success = try_infer_value(
target_expr,
parameters={k: _nd.array(np.array(v)) for k, v in self.exp_tab.params.items()},
)
if success:
# convert to flattened list
from itertools import chain

try:
target_shape = list(chain(*target_value))
except TypeError:
target_shape = list(chain(target_value))
else:
target_shape = target_expr
else:
target_shape = self.get_tensor_value(shape_tensor)
# convert to flattened list
Expand Down