x86/itx: Add 4x8, 8x{4,8} 12bpc AVX2 transforms
inv_txfm_add_4x8_adst_adst_0_12bpc_c: 900.8
inv_txfm_add_4x8_adst_adst_0_12bpc_avx2: 118.8
inv_txfm_add_4x8_adst_adst_1_12bpc_c: 893.7
inv_txfm_add_4x8_adst_adst_1_12bpc_avx2: 118.8
inv_txfm_add_4x8_adst_dct_0_12bpc_c: 890.2
inv_txfm_add_4x8_adst_dct_0_12bpc_avx2: 104.8
inv_txfm_add_4x8_adst_dct_1_12bpc_c: 887.4
inv_txfm_add_4x8_adst_dct_1_12bpc_avx2: 104.8
inv_txfm_add_4x8_adst_flipadst_0_12bpc_c: 919.6
inv_txfm_add_4x8_adst_flipadst_0_12bpc_avx2: 116.6
inv_txfm_add_4x8_adst_flipadst_1_12bpc_c: 912.1
inv_txfm_add_4x8_adst_flipadst_1_12bpc_avx2: 116.6
inv_txfm_add_4x8_adst_identity_0_12bpc_c: 613.5
inv_txfm_add_4x8_adst_identity_0_12bpc_avx2: 42.8
inv_txfm_add_4x8_adst_identity_1_12bpc_c: 608.7
inv_txfm_add_4x8_adst_identity_1_12bpc_avx2: 43.3
inv_txfm_add_4x8_dct_adst_0_12bpc_c: 951.7
inv_txfm_add_4x8_dct_adst_0_12bpc_avx2: 113.8
inv_txfm_add_4x8_dct_adst_1_12bpc_c: 949.0
inv_txfm_add_4x8_dct_adst_1_12bpc_avx2: 113.1
inv_txfm_add_4x8_dct_dct_0_12bpc_c: 118.6
inv_txfm_add_4x8_dct_dct_0_12bpc_avx2: 24.5
inv_txfm_add_4x8_dct_dct_1_12bpc_c: 942.4
inv_txfm_add_4x8_dct_dct_1_12bpc_avx2: 99.2
inv_txfm_add_4x8_dct_flipadst_0_12bpc_c: 959.3
inv_txfm_add_4x8_dct_flipadst_0_12bpc_avx2: 113.9
inv_txfm_add_4x8_dct_flipadst_1_12bpc_c: 964.1
inv_txfm_add_4x8_dct_flipadst_1_12bpc_avx2: 114.3
inv_txfm_add_4x8_dct_identity_0_12bpc_c: 659.9
inv_txfm_add_4x8_dct_identity_0_12bpc_avx2: 41.9
inv_txfm_add_4x8_dct_identity_1_12bpc_c: 658.6
inv_txfm_add_4x8_dct_identity_1_12bpc_avx2: 41.6
inv_txfm_add_4x8_flipadst_adst_0_12bpc_c: 906.6
inv_txfm_add_4x8_flipadst_adst_0_12bpc_avx2: 117.3
inv_txfm_add_4x8_flipadst_adst_1_12bpc_c: 907.7
inv_txfm_add_4x8_flipadst_adst_1_12bpc_avx2: 117.3
inv_txfm_add_4x8_flipadst_dct_0_12bpc_c: 890.3
inv_txfm_add_4x8_flipadst_dct_0_12bpc_avx2: 104.6
inv_txfm_add_4x8_flipadst_dct_1_12bpc_c: 895.6
inv_txfm_add_4x8_flipadst_dct_1_12bpc_avx2: 104.6
inv_txfm_add_4x8_flipadst_flipadst_0_12bpc_c: 902.9
inv_txfm_add_4x8_flipadst_flipadst_0_12bpc_avx2: 116.5
inv_txfm_add_4x8_flipadst_flipadst_1_12bpc_c: 915.0
inv_txfm_add_4x8_flipadst_flipadst_1_12bpc_avx2: 116.4
inv_txfm_add_4x8_flipadst_identity_0_12bpc_c: 618.6
inv_txfm_add_4x8_flipadst_identity_0_12bpc_avx2: 45.3
inv_txfm_add_4x8_flipadst_identity_1_12bpc_c: 618.1
inv_txfm_add_4x8_flipadst_identity_1_12bpc_avx2: 44.0
inv_txfm_add_4x8_identity_adst_0_12bpc_c: 829.7
inv_txfm_add_4x8_identity_adst_0_12bpc_avx2: 107.4
inv_txfm_add_4x8_identity_adst_1_12bpc_c: 831.7
inv_txfm_add_4x8_identity_adst_1_12bpc_avx2: 107.8
inv_txfm_add_4x8_identity_dct_0_12bpc_c: 823.2
inv_txfm_add_4x8_identity_dct_0_12bpc_avx2: 90.7
inv_txfm_add_4x8_identity_dct_1_12bpc_c: 824.1
inv_txfm_add_4x8_identity_dct_1_12bpc_avx2: 90.7
inv_txfm_add_4x8_identity_flipadst_0_12bpc_c: 853.4
inv_txfm_add_4x8_identity_flipadst_0_12bpc_avx2: 106.8
inv_txfm_add_4x8_identity_flipadst_1_12bpc_c: 852.2
inv_txfm_add_4x8_identity_flipadst_1_12bpc_avx2: 106.8
inv_txfm_add_4x8_identity_identity_0_12bpc_c: 543.2
inv_txfm_add_4x8_identity_identity_0_12bpc_avx2: 36.4
inv_txfm_add_4x8_identity_identity_1_12bpc_c: 544.8
inv_txfm_add_4x8_identity_identity_1_12bpc_avx2: 36.6
inv_txfm_add_8x4_adst_adst_0_12bpc_c: 882.1
inv_txfm_add_8x4_adst_adst_0_12bpc_avx2: 113.7
inv_txfm_add_8x4_adst_adst_1_12bpc_c: 882.5
inv_txfm_add_8x4_adst_adst_1_12bpc_avx2: 113.8
inv_txfm_add_8x4_adst_dct_0_12bpc_c: 928.0
inv_txfm_add_8x4_adst_dct_0_12bpc_avx2: 109.2
inv_txfm_add_8x4_adst_dct_1_12bpc_c: 924.9
inv_txfm_add_8x4_adst_dct_1_12bpc_avx2: 109.2
inv_txfm_add_8x4_adst_flipadst_0_12bpc_c: 889.9
inv_txfm_add_8x4_adst_flipadst_0_12bpc_avx2: 114.3
inv_txfm_add_8x4_adst_flipadst_1_12bpc_c: 886.0
inv_txfm_add_8x4_adst_flipadst_1_12bpc_avx2: 114.8
inv_txfm_add_8x4_adst_identity_0_12bpc_c: 832.2
inv_txfm_add_8x4_adst_identity_0_12bpc_avx2: 88.8
inv_txfm_add_8x4_adst_identity_1_12bpc_c: 834.6
inv_txfm_add_8x4_adst_identity_1_12bpc_avx2: 89.0
inv_txfm_add_8x4_dct_adst_0_12bpc_c: 870.3
inv_txfm_add_8x4_dct_adst_0_12bpc_avx2: 96.3
inv_txfm_add_8x4_dct_adst_1_12bpc_c: 884.6
inv_txfm_add_8x4_dct_adst_1_12bpc_avx2: 96.3
inv_txfm_add_8x4_dct_dct_0_12bpc_c: 116.1
inv_txfm_add_8x4_dct_dct_0_12bpc_avx2: 24.5
inv_txfm_add_8x4_dct_dct_1_12bpc_c: 925.1
inv_txfm_add_8x4_dct_dct_1_12bpc_avx2: 92.3
inv_txfm_add_8x4_dct_flipadst_0_12bpc_c: 882.7
inv_txfm_add_8x4_dct_flipadst_0_12bpc_avx2: 97.0
inv_txfm_add_8x4_dct_flipadst_1_12bpc_c: 882.1
inv_txfm_add_8x4_dct_flipadst_1_12bpc_avx2: 97.0
inv_txfm_add_8x4_dct_identity_0_12bpc_c: 827.5
inv_txfm_add_8x4_dct_identity_0_12bpc_avx2: 72.4
inv_txfm_add_8x4_dct_identity_1_12bpc_c: 827.8
inv_txfm_add_8x4_dct_identity_1_12bpc_avx2: 73.8
inv_txfm_add_8x4_flipadst_adst_0_12bpc_c: 899.5
inv_txfm_add_8x4_flipadst_adst_0_12bpc_avx2: 113.2
inv_txfm_add_8x4_flipadst_adst_1_12bpc_c: 898.8
inv_txfm_add_8x4_flipadst_adst_1_12bpc_avx2: 113.3
inv_txfm_add_8x4_flipadst_dct_0_12bpc_c: 945.7
inv_txfm_add_8x4_flipadst_dct_0_12bpc_avx2: 108.3
inv_txfm_add_8x4_flipadst_dct_1_12bpc_c: 945.6
inv_txfm_add_8x4_flipadst_dct_1_12bpc_avx2: 108.3
inv_txfm_add_8x4_flipadst_flipadst_0_12bpc_c: 903.6
inv_txfm_add_8x4_flipadst_flipadst_0_12bpc_avx2: 113.9
inv_txfm_add_8x4_flipadst_flipadst_1_12bpc_c: 902.8
inv_txfm_add_8x4_flipadst_flipadst_1_12bpc_avx2: 114.2
inv_txfm_add_8x4_flipadst_identity_0_12bpc_c: 856.6
inv_txfm_add_8x4_flipadst_identity_0_12bpc_avx2: 88.3
inv_txfm_add_8x4_flipadst_identity_1_12bpc_c: 848.8
inv_txfm_add_8x4_flipadst_identity_1_12bpc_avx2: 87.4
inv_txfm_add_8x4_identity_adst_0_12bpc_c: 583.2
inv_txfm_add_8x4_identity_adst_0_12bpc_avx2: 69.6
inv_txfm_add_8x4_identity_adst_1_12bpc_c: 584.3
inv_txfm_add_8x4_identity_adst_1_12bpc_avx2: 69.6
inv_txfm_add_8x4_identity_dct_0_12bpc_c: 632.9
inv_txfm_add_8x4_identity_dct_0_12bpc_avx2: 65.3
inv_txfm_add_8x4_identity_dct_1_12bpc_c: 629.6
inv_txfm_add_8x4_identity_dct_1_12bpc_avx2: 65.8
inv_txfm_add_8x4_identity_flipadst_0_12bpc_c: 587.0
inv_txfm_add_8x4_identity_flipadst_0_12bpc_avx2: 71.0
inv_txfm_add_8x4_identity_flipadst_1_12bpc_c: 586.9
inv_txfm_add_8x4_identity_flipadst_1_12bpc_avx2: 71.0
inv_txfm_add_8x4_identity_identity_0_12bpc_c: 533.0
inv_txfm_add_8x4_identity_identity_0_12bpc_avx2: 45.3
inv_txfm_add_8x4_identity_identity_1_12bpc_c: 539.7
inv_txfm_add_8x4_identity_identity_1_12bpc_avx2: 45.9
inv_txfm_add_8x8_adst_adst_0_12bpc_c: 1997.9
inv_txfm_add_8x8_adst_adst_0_12bpc_avx2: 185.7
inv_txfm_add_8x8_adst_adst_1_12bpc_c: 2009.8
inv_txfm_add_8x8_adst_adst_1_12bpc_avx2: 185.7
inv_txfm_add_8x8_adst_dct_0_12bpc_c: 1991.0
inv_txfm_add_8x8_adst_dct_0_12bpc_avx2: 161.3
inv_txfm_add_8x8_adst_dct_1_12bpc_c: 1977.0
inv_txfm_add_8x8_adst_dct_1_12bpc_avx2: 161.4
inv_txfm_add_8x8_adst_flipadst_0_12bpc_c: 2017.6
inv_txfm_add_8x8_adst_flipadst_0_12bpc_avx2: 184.2
inv_txfm_add_8x8_adst_flipadst_1_12bpc_c: 2018.9
inv_txfm_add_8x8_adst_flipadst_1_12bpc_avx2: 184.2
inv_txfm_add_8x8_adst_identity_0_12bpc_c: 1407.2
inv_txfm_add_8x8_adst_identity_0_12bpc_avx2: 95.7
inv_txfm_add_8x8_adst_identity_1_12bpc_c: 1405.9
inv_txfm_add_8x8_adst_identity_1_12bpc_avx2: 95.8
inv_txfm_add_8x8_dct_adst_0_12bpc_c: 2024.2
inv_txfm_add_8x8_dct_adst_0_12bpc_avx2: 156.9
inv_txfm_add_8x8_dct_adst_1_12bpc_c: 2018.8
inv_txfm_add_8x8_dct_adst_1_12bpc_avx2: 160.1
inv_txfm_add_8x8_dct_dct_0_12bpc_c: 213.0
inv_txfm_add_8x8_dct_dct_0_12bpc_avx2: 24.8
inv_txfm_add_8x8_dct_dct_1_12bpc_c: 2008.6
inv_txfm_add_8x8_dct_dct_1_12bpc_avx2: 139.0
inv_txfm_add_8x8_dct_flipadst_0_12bpc_c: 2012.3
inv_txfm_add_8x8_dct_flipadst_0_12bpc_avx2: 159.2
inv_txfm_add_8x8_dct_flipadst_1_12bpc_c: 2005.1
inv_txfm_add_8x8_dct_flipadst_1_12bpc_avx2: 158.7
inv_txfm_add_8x8_dct_identity_0_12bpc_c: 1470.4
inv_txfm_add_8x8_dct_identity_0_12bpc_avx2: 71.7
inv_txfm_add_8x8_dct_identity_1_12bpc_c: 1477.8
inv_txfm_add_8x8_dct_identity_1_12bpc_avx2: 70.7
inv_txfm_add_8x8_flipadst_adst_0_12bpc_c: 2006.1
inv_txfm_add_8x8_flipadst_adst_0_12bpc_avx2: 183.6
inv_txfm_add_8x8_flipadst_adst_1_12bpc_c: 1987.6
inv_txfm_add_8x8_flipadst_adst_1_12bpc_avx2: 183.6
inv_txfm_add_8x8_flipadst_dct_0_12bpc_c: 1986.6
inv_txfm_add_8x8_flipadst_dct_0_12bpc_avx2: 163.0
inv_txfm_add_8x8_flipadst_dct_1_12bpc_c: 1979.3
inv_txfm_add_8x8_flipadst_dct_1_12bpc_avx2: 163.1
inv_txfm_add_8x8_flipadst_flipadst_0_12bpc_c: 2004.0
inv_txfm_add_8x8_flipadst_flipadst_0_12bpc_avx2: 184.3
inv_txfm_add_8x8_flipadst_flipadst_1_12bpc_c: 2003.9
inv_txfm_add_8x8_flipadst_flipadst_1_12bpc_avx2: 184.3
inv_txfm_add_8x8_flipadst_identity_0_12bpc_c: 1433.5
inv_txfm_add_8x8_flipadst_identity_0_12bpc_avx2: 95.3
inv_txfm_add_8x8_flipadst_identity_1_12bpc_c: 1425.4
inv_txfm_add_8x8_flipadst_identity_1_12bpc_avx2: 96.3
inv_txfm_add_8x8_identity_adst_0_12bpc_c: 1456.5
inv_txfm_add_8x8_identity_adst_0_12bpc_avx2: 115.8
inv_txfm_add_8x8_identity_adst_1_12bpc_c: 1453.5
inv_txfm_add_8x8_identity_adst_1_12bpc_avx2: 115.8
inv_txfm_add_8x8_identity_dct_0_12bpc_c: 1450.0
inv_txfm_add_8x8_identity_dct_0_12bpc_avx2: 93.5
inv_txfm_add_8x8_identity_dct_1_12bpc_c: 1447.5
inv_txfm_add_8x8_identity_dct_1_12bpc_avx2: 94.3
inv_txfm_add_8x8_identity_flipadst_0_12bpc_c: 1451.7
inv_txfm_add_8x8_identity_flipadst_0_12bpc_avx2: 114.0
inv_txfm_add_8x8_identity_flipadst_1_12bpc_c: 1456.4
inv_txfm_add_8x8_identity_flipadst_1_12bpc_avx2: 114.0
inv_txfm_add_8x8_identity_identity_0_12bpc_c: 892.3
inv_txfm_add_8x8_identity_identity_0_12bpc_avx2: 33.7
inv_txfm_add_8x8_identity_identity_1_12bpc_c: 897.2
inv_txfm_add_8x8_identity_identity_1_12bpc_avx2: 33.1