[PATCH 0/5] MR70: vkd3d-shader/hlsl: Make single-component swizzles retrieve a scalar and add more swizzle tests.

[Francisco Casas (＠fcasas)]

Vectors cannot be used as array indexes, however, single-component
swizzles (such as vec.x) can be used.

This suggests that single-component swizzles should actually be
scalars and not vectors of dimx = 1.

It is worth noting that the use of swizzles on scalars should still
be allowed.

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/70