Access numeric indices in openCL vectors of size greater than 16

OpenCL
1

In Opencl for vector up to length 16 . we can access its (scalar) components by specifying them:


    float16 x;
    x.sA // refers to the 11th element of the float16 variable x
    x.sF // refers to the 16th element of the float16 variable x

How can we access components of float32 y or float128 w .Is there an extension for that ?(I didn`t find that it is built-in)
as well I can combine indices:


    float16 x;
    float4 y = x.sB1AE

Is there something similar for vectors having length

16

(or workaround)

2

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