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-rw-r--r--ethosu/vela/graph_optimiser.py4
-rw-r--r--ethosu/vela/supported_operators.py2
2 files changed, 6 insertions, 0 deletions
diff --git a/ethosu/vela/graph_optimiser.py b/ethosu/vela/graph_optimiser.py
index 9c6e1f5b..a9d5cce5 100644
--- a/ethosu/vela/graph_optimiser.py
+++ b/ethosu/vela/graph_optimiser.py
@@ -212,6 +212,10 @@ def fixup_resizebilinear(op, arch):
if op.type == "ResizeBilinear":
if op.inputs[0].shape[1] == 1 and op.inputs[0].shape[2] == 1:
convert_resizebilinear_1x1_to_add(op)
+ elif op.inputs[0].shape == op.outputs[0].shape:
+ # Bypass nop resizebilinear
+ op.inputs = op.inputs[:1]
+ op.type = "Identity"
return op
diff --git a/ethosu/vela/supported_operators.py b/ethosu/vela/supported_operators.py
index 73e219b5..b5853236 100644
--- a/ethosu/vela/supported_operators.py
+++ b/ethosu/vela/supported_operators.py
@@ -267,6 +267,8 @@ class SupportedOperators:
if op.type == "ResizeBilinear":
if op.inputs[0].shape[1] == 1 and op.inputs[0].shape[2] == 1:
return True
+ if op.inputs[0].shape == op.outputs[0].shape:
+ return True
upscaled_shape = [op.inputs[0].shape[1] * 2, op.inputs[0].shape[2] * 2]
out_shape = op.outputs[0].shape[1:3]
if not op.attrs["align_corners"] and out_shape != upscaled_shape: