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//
// This confidential and proprietary software may be used only as
// authorised by a licensing agreement from ARM Limited
// (C) COPYRIGHT 2020-2024 ARM Limited
// ALL RIGHTS RESERVED
// The entire notice above must be reproduced on all authorised
// copies and copies may only be made to the extent permitted
// by a licensing agreement from ARM Limited.
tensor_t var_tensor = variable_tensor_lookup(uid);
// Invocation for the first time
if (var_tensor == NULL) {
// Allocate the persistent mutable memory for the variable tensor
var_tensor = variable_tensor_allocate<var_t>(var_shape, uid);
if (initial_value != NULL) {
REQUIRE(var_t == in_t);
REQUIRE(var_shape == shape);
for_each (index in shape) {
// Copy data from initial_value to var_tensor
in_t value = tensor_read<in_t>(initial_value, shape, index);
tensor_write<in_t>(var_tensor.data, var_shape, index, value);
}
var_tensor.is_written = true;
}
} else { // Variable tensor has already been declared
// It's invalid to declare the second variable with the same uid in a single graph execution,
REQUIRE(!var_tensor.seen);
}
var_tensor.seen = true;
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