[Bug] fusion rewrite fails

[soodoshll]

Running this snippet:

import torch
import hidet
import onnx

class Foo(torch.nn.Module):
    def __init__(self):
        super().__init__()
    
    def forward(self, x, y):
        y = torch.min(y, dim=0)[0]
        z = x / y
        return z

device = 'cuda'

model = Foo()
model.to(device)

x = torch.rand([1, 1, 1, 1, 1], device=device)
y = torch.rand([2, 2], device=device)

z = model(x, y)
print(z.shape)

torch.onnx.export(model, (x, y), 'tmp.onnx', input_names = ['x', 'y'],
                  output_names = ['z'])
model = onnx.load('tmp.onnx')

hidet.torch.dynamo_config.search_space(1)

x = hidet.from_torch(x)
y = hidet.from_torch(y)
symbol_data = [hidet.symbol_like(x), hidet.symbol_like(y)]
hidet_onnx_module = hidet.graph.frontend.from_onnx(model)
symbol_output = hidet_onnx_module(*symbol_data)
graph: hidet.FlowGraph = hidet.trace_from(symbol_output, inputs=symbol_data)
with hidet.graph.PassContext() as ctx:
    graph_opt: hidet.FlowGraph = hidet.graph.optimize(graph)
cuda_graph = graph_opt.cuda_graph()
outputs = cuda_graph.run([x, y])

raises error message:

  File "/home/su/accdiff/thirdparty/hidet/python/hidet/transforms/tools/apply_prologue_epilogue.py", line 172, in visit_BufferStoreStmt
    remap: Dict[Var, Expr] = {a: b for a, b in strict_zip(tc.axes, out_indices)}
  File "/home/su/accdiff/thirdparty/hidet/python/hidet/utils/py.py", line 55, in strict_zip
    raise ValueError(
ValueError: Expect two sequence have the same length in zip, got length 5 and 1.

[yaoyaoding]

Thanks @soodoshll, should be fixed in #107.