"""Test code for clip operator""" import numpy as np import tvm import topi from topi.util import get_const_tuple from tvm.contrib.pickle_memoize import memoize def verify_clip(N, a_min, a_max, dtype): A = tvm.placeholder((N, N), dtype=dtype, name='A') B = topi.clip(A, a_min, a_max) s = tvm.create_schedule([B.op]) # use memoize to pickle the test data for next time use @memoize("topi.tests.test_topi_clip") def get_ref_data(): a_np = np.random.uniform(a_min*2, a_max*2, size=(N, N)).astype(dtype) b_np = np.clip(a_np, a_min, a_max) return a_np, b_np a_np, b_np = get_ref_data() def check_device(device): if not tvm.module.enabled(device): print("Skip because %s is not enabled" % device) return ctx = tvm.cpu(0) if device == "llvm" else tvm.gpu(0) a = tvm.nd.array(a_np, ctx) b = tvm.nd.array(np.zeros(get_const_tuple(B.shape), dtype=dtype), ctx) f = tvm.build(s, [A, B], device, name="clip") f(a, b) np.testing.assert_allclose(b.asnumpy(), b_np, rtol=1e-5) for device in ['llvm']: check_device(device) def test_clip(): verify_clip(1024, -127, 127, 'int8') verify_clip(1024, -127, 127, 'int16') verify_clip(1024, -127, 127, 'float32') if __name__ == "__main__": test_clip()