i965/vec4/gen8: Handle the MUL dest hazard exception
Fix one of the few cases where we can't reliable touch the destination hazard bits. I am explicitly doing this patch individually so it is easy to backport. I was tempted to do this patch before the previous patch which reorganized the code, but I believe even doing that first, this is still easy to backport. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84212 Signed-off-by:Ben Widawsky <ben@bwidawsk.net> Reviewed-by:
Matt Turner <mattst88@gmail.com>
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