The block defining a phi source might not have been executed. If we allow copy propagation, we could end up pointing to a src instruction in the wrong block. Signed-off-by: Rob Clark <robclark@freedesktop.org>
The block defining a phi source might not have been executed. If we allow copy propagation, we could end up pointing to a src instruction in the wrong block. Signed-off-by: Rob Clark <robclark@freedesktop.org>