x86/itx: Add 8x16 12bpc AVX2 transforms
x86/itx: Add 8x16 12bpc AVX2 transforms

inv_txfm_add_8x16_adst_adst_0_12bpc_c: 4440.4
inv_txfm_add_8x16_adst_adst_0_12bpc_avx2: 354.3
inv_txfm_add_8x16_adst_adst_1_12bpc_c: 4437.3
inv_txfm_add_8x16_adst_adst_1_12bpc_avx2: 354.3
inv_txfm_add_8x16_adst_adst_2_12bpc_c: 4438.8
inv_txfm_add_8x16_adst_adst_2_12bpc_avx2: 442.6
inv_txfm_add_8x16_adst_dct_0_12bpc_c: 4507.3
inv_txfm_add_8x16_adst_dct_0_12bpc_avx2: 310.0
inv_txfm_add_8x16_adst_dct_1_12bpc_c: 4500.3
inv_txfm_add_8x16_adst_dct_1_12bpc_avx2: 310.0
inv_txfm_add_8x16_adst_dct_2_12bpc_c: 4516.1
inv_txfm_add_8x16_adst_dct_2_12bpc_avx2: 399.5
inv_txfm_add_8x16_adst_flipadst_0_12bpc_c: 4457.3
inv_txfm_add_8x16_adst_flipadst_0_12bpc_avx2: 355.6
inv_txfm_add_8x16_adst_flipadst_1_12bpc_c: 4441.3
inv_txfm_add_8x16_adst_flipadst_1_12bpc_avx2: 355.6
inv_txfm_add_8x16_adst_flipadst_2_12bpc_c: 4448.9
inv_txfm_add_8x16_adst_flipadst_2_12bpc_avx2: 445.5
inv_txfm_add_8x16_adst_identity_0_12bpc_c: 3204.0
inv_txfm_add_8x16_adst_identity_0_12bpc_avx2: 173.1
inv_txfm_add_8x16_adst_identity_1_12bpc_c: 3207.1
inv_txfm_add_8x16_adst_identity_1_12bpc_avx2: 173.6
inv_txfm_add_8x16_adst_identity_2_12bpc_c: 3210.4
inv_txfm_add_8x16_adst_identity_2_12bpc_avx2: 261.2
inv_txfm_add_8x16_dct_adst_0_12bpc_c: 4484.2
inv_txfm_add_8x16_dct_adst_0_12bpc_avx2: 334.0
inv_txfm_add_8x16_dct_adst_1_12bpc_c: 4503.8
inv_txfm_add_8x16_dct_adst_1_12bpc_avx2: 334.6
inv_txfm_add_8x16_dct_adst_2_12bpc_c: 4490.7
inv_txfm_add_8x16_dct_adst_2_12bpc_avx2: 395.6
inv_txfm_add_8x16_dct_dct_0_12bpc_c: 419.9
inv_txfm_add_8x16_dct_dct_0_12bpc_avx2: 37.6
inv_txfm_add_8x16_dct_dct_1_12bpc_c: 4482.6
inv_txfm_add_8x16_dct_dct_1_12bpc_avx2: 284.6
inv_txfm_add_8x16_dct_dct_2_12bpc_c: 4468.7
inv_txfm_add_8x16_dct_dct_2_12bpc_avx2: 348.3
inv_txfm_add_8x16_dct_flipadst_0_12bpc_c: 4468.4
inv_txfm_add_8x16_dct_flipadst_0_12bpc_avx2: 333.6
inv_txfm_add_8x16_dct_flipadst_1_12bpc_c: 4463.5
inv_txfm_add_8x16_dct_flipadst_1_12bpc_avx2: 333.5
inv_txfm_add_8x16_dct_flipadst_2_12bpc_c: 4459.4
inv_txfm_add_8x16_dct_flipadst_2_12bpc_avx2: 397.4
inv_txfm_add_8x16_dct_identity_0_12bpc_c: 3237.1
inv_txfm_add_8x16_dct_identity_0_12bpc_avx2: 149.6
inv_txfm_add_8x16_dct_identity_1_12bpc_c: 3229.9
inv_txfm_add_8x16_dct_identity_1_12bpc_avx2: 148.6
inv_txfm_add_8x16_dct_identity_2_12bpc_c: 3225.6
inv_txfm_add_8x16_dct_identity_2_12bpc_avx2: 211.3
inv_txfm_add_8x16_flipadst_adst_0_12bpc_c: 4532.1
inv_txfm_add_8x16_flipadst_adst_0_12bpc_avx2: 356.2
inv_txfm_add_8x16_flipadst_adst_1_12bpc_c: 4527.6
inv_txfm_add_8x16_flipadst_adst_1_12bpc_avx2: 356.1
inv_txfm_add_8x16_flipadst_adst_2_12bpc_c: 4532.5
inv_txfm_add_8x16_flipadst_adst_2_12bpc_avx2: 440.0
inv_txfm_add_8x16_flipadst_dct_0_12bpc_c: 4571.6
inv_txfm_add_8x16_flipadst_dct_0_12bpc_avx2: 310.3
inv_txfm_add_8x16_flipadst_dct_1_12bpc_c: 4554.5
inv_txfm_add_8x16_flipadst_dct_1_12bpc_avx2: 309.7
inv_txfm_add_8x16_flipadst_dct_2_12bpc_c: 4554.3
inv_txfm_add_8x16_flipadst_dct_2_12bpc_avx2: 399.9
inv_txfm_add_8x16_flipadst_flipadst_0_12bpc_c: 4497.2
inv_txfm_add_8x16_flipadst_flipadst_0_12bpc_avx2: 355.9
inv_txfm_add_8x16_flipadst_flipadst_1_12bpc_c: 4486.2
inv_txfm_add_8x16_flipadst_flipadst_1_12bpc_avx2: 355.6
inv_txfm_add_8x16_flipadst_flipadst_2_12bpc_c: 4493.4
inv_txfm_add_8x16_flipadst_flipadst_2_12bpc_avx2: 446.0
inv_txfm_add_8x16_flipadst_identity_0_12bpc_c: 3265.7
inv_txfm_add_8x16_flipadst_identity_0_12bpc_avx2: 173.8
inv_txfm_add_8x16_flipadst_identity_1_12bpc_c: 3270.8
inv_txfm_add_8x16_flipadst_identity_1_12bpc_avx2: 173.5
inv_txfm_add_8x16_flipadst_identity_2_12bpc_c: 3271.8
inv_txfm_add_8x16_flipadst_identity_2_12bpc_avx2: 261.6
inv_txfm_add_8x16_identity_adst_0_12bpc_c: 3295.3
inv_txfm_add_8x16_identity_adst_0_12bpc_avx2: 302.5
inv_txfm_add_8x16_identity_adst_1_12bpc_c: 3303.1
inv_txfm_add_8x16_identity_adst_1_12bpc_avx2: 303.0
inv_txfm_add_8x16_identity_adst_2_12bpc_c: 3304.6
inv_txfm_add_8x16_identity_adst_2_12bpc_avx2: 303.1
inv_txfm_add_8x16_identity_dct_0_12bpc_c: 3298.9
inv_txfm_add_8x16_identity_dct_0_12bpc_avx2: 257.8
inv_txfm_add_8x16_identity_dct_1_12bpc_c: 3308.1
inv_txfm_add_8x16_identity_dct_1_12bpc_avx2: 259.2
inv_txfm_add_8x16_identity_dct_2_12bpc_c: 3306.6
inv_txfm_add_8x16_identity_dct_2_12bpc_avx2: 259.2
inv_txfm_add_8x16_identity_flipadst_0_12bpc_c: 3294.7
inv_txfm_add_8x16_identity_flipadst_0_12bpc_avx2: 302.2
inv_txfm_add_8x16_identity_flipadst_1_12bpc_c: 3292.5
inv_txfm_add_8x16_identity_flipadst_1_12bpc_avx2: 302.2
inv_txfm_add_8x16_identity_flipadst_2_12bpc_c: 3275.4
inv_txfm_add_8x16_identity_flipadst_2_12bpc_avx2: 303.3
inv_txfm_add_8x16_identity_identity_0_12bpc_c: 2044.6
inv_txfm_add_8x16_identity_identity_0_12bpc_avx2: 116.2
inv_txfm_add_8x16_identity_identity_1_12bpc_c: 2059.9
inv_txfm_add_8x16_identity_identity_1_12bpc_avx2: 117.0
inv_txfm_add_8x16_identity_identity_2_12bpc_c: 2048.4
inv_txfm_add_8x16_identity_identity_2_12bpc_avx2: 116.2

xiph/rav1e,xiph/rav1e