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Ryan Houdek
4afbfcae17
With the introduction of the wide gathers in #3828 this has opened new avenues for optimizing these cases that would typically fall back to ASIMD. In the cases that 32-bit SVE scaling doesn't fit, we can instead sign extend the elements in to double-width address registers. This then feeds naturally in to the SVE path even though we end up needing to allocate 512-bits worth of address registers. This ends up being significantly better than the ASIMD path still. Relies on #3828 to be merged first Fixes #3829