nir/remove_dead_variables: never delete xfb outputs
these must always be preserved for drivers that use them
cc: mesa-stable
fixes (lavapipe):
dEQP-VK.transform_feedback.simple.multiquery_omit_write_1
dEQP-VK.transform_feedback.simple.multiquery_omit_write_3
dEQP-VK.transform_feedback.simple.query_omit_write_0_127_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_0_127_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_0_251_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_0_251_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_0_4_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_0_4_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_0_509_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_0_509_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_0_61_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_0_61_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_126_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_126_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_250_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_250_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_508_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_508_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_60_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_60_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_6_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_0_6_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_124_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_124_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_248_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_248_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_4_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_4_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_508_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_508_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_60_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_list_with_adjacency_0_60_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_127_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_127_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_251_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_251_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_509_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_509_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_61_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_61_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_6_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_0_6_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_127_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_127_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_251_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_251_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_509_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_509_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_61_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_61_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_6_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_line_strip_with_adjacency_0_6_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_127_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_127_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_251_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_251_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_509_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_509_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_61_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_61_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_6_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_fan_0_6_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_126_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_126_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_249_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_249_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_507_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_507_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_60_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_60_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_6_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_0_6_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_126_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_126_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_246_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_246_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_504_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_504_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_60_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_60_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_6_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_list_with_adjacency_0_6_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_127_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_127_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_251_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_251_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_509_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_509_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_61_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_61_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_6_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_0_6_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_126_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_126_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_250_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_250_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_508_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_508_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_60_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_60_64bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_6_32bits
dEQP-VK.transform_feedback.simple.query_omit_write_triangle_strip_with_adjacency_0_6_64bits
Edited by Mike Blumenkrantz