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Make test_force_quant_dequant_fusion use GraphBuilder. #10926

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Merged
merged 1 commit into from
May 20, 2025
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Make test_force_quant_dequant_fusion use GraphBuilder. #10926

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42 changes: 19 additions & 23 deletions backends/cadence/aot/tests/test_fusion_ops_passes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -248,32 +248,28 @@ def forward(self, x):
)

def test_force_quant_dequant_fusion(self):
class M(torch.nn.Module):
def __init__(self):
super().__init__()

def forward(self, x):
x = torch.ops.quantized_decomposed.quantize_per_tensor(
x, 1.2, 3, 0, 127, torch.int8
)
x = torch.permute(x, [2, 0, 1, 3])
x = torch.ops.quantized_decomposed.dequantize_per_tensor(
x, 4.5, 6, 0, 127, torch.int8
)
return x

inputs = torch.randn(2, 12, 1, 6)
model = M()
graph_module = export_to_edge(model, (inputs,)).exported_program().graph_module

graph_module = FuseQuantDequantToRequantizePass(
builder = GraphBuilder()
x = builder.placeholder("x", torch.randn(2, 12, 1, 6, dtype=torch.float32))
quant = builder.call_operator(
op=exir_ops.edge.quantized_decomposed.quantize_per_tensor.default,
args=(x, 1.2, 3, 0, 127, torch.int8),
)
permute = builder.call_operator(
op=exir_ops.edge.aten.permute_copy.default, args=(quant, [2, 0, 1, 3])
)
dequant = builder.call_operator(
op=exir_ops.edge.quantized_decomposed.dequantize_per_tensor.default,
args=(permute, 4.5, 6, 0, 127, torch.int8),
)
builder.output(dequant)
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Nit: use a variable for readability

Suggested change
builder.output(dequant)
builder.output(dequant)
graph_module = builder.get_graph_module()

original_graph = builder.get_graph_module()
converted_graph = FuseQuantDequantToRequantizePass(
force_quant_dequant_fusion=True
)(graph_module).graph_module
)(original_graph).graph_module
self.check_op_counts(
graph_module,
converted_graph,
expected_op_counts={
# Verify that no dequant/quant pair was replaced with requantize.
# quantize -> permute -> dequantize should not be replaced with requantize.
# Verify that dequant/quant pair was replaced with requantize.
exir_ops.edge.quantized_decomposed.quantize_per_tensor.default: 0,
exir_ops.edge.quantized_decomposed.dequantize_per_tensor.default: 0,
exir_ops.edge.cadence.requantize.default: 1,
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