pseudocode/library/broadcast_shape.tosac


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

//
// 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.

shape_t broadcast_shape(shape_t shape1, shape_t shape2) {
    ERROR_IF(rank(shape1) != rank(shape2));
    shape_t shape = shape1;
    for (int32_t i = 0; i < rank(shape); i++) {
        if (shape[i] == 1) {
            shape[i] = shape2[i];
        } else {
            ERROR_IF(shape2[i] != 1 && shape2[i] != shape[i]);
        }
    }
    return shape;
}