[NFCI][SYCL] Split vec's unary ops into individual mixins #16946
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We don't want constraints on non-template hidden friend operators to be implemented by templatizing it. It would be trivial with C++20 concepts, but we're limited to C++17. The proposed class hierarchy for `vecto_arith` helper had intended that, but implementation was only partial. We want to fix that while implementing the proposed specification changes to the vec/swizzle so setup infrastructure to do so now, to minimize the amount of "preview-breaking-changes" customizations later. The idea is to split each operator into an individual unrestrained mixin, so that the constraints could be implemented on top of it via `detail::ApplyIf` helper. This particular PR only implements such a change for unary operators. The rest will be implemented in a subsequent change to ease review process.
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uditagarwal97
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Refer to intel#16946 for the context.
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We don't want constraints on non-template hidden friend operators to be implemented by templatizing it. It would be trivial with C++20 concepts, but we're limited to C++17. The proposed class hierarchy for
vecto_arithhelper had intended that, but implementation was only partial.We want to fix that while implementing the proposed specification changes to the vec/swizzle so setup infrastructure to do so now, to minimize the amount of "preview-breaking-changes" customizations later.
The idea is to split each operator into an individual unrestrained mixin, so that the constraints could be implemented on top of it via
detail::ApplyIfhelper. This particular PR only implements such a change for unary operators. The rest will be implemented in a subsequent change to ease review process.