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Erico Nunes authored
The src mask can't be calculated from the dest write_mask. Instead, it must be calculated from the swizzled operators of the src. Otherwise, liveness calculation may report incorrect live components for non-ssa registers. Signed-off-by: Erico Nunes <nunes.erico@gmail.com> Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com> Tested-by: Marge Bot <mesa/mesa!3502> Part-of: <mesa/mesa!3502>
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