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From: | Richard Henderson |
Subject: | Re: [PATCH 09/12] target/ppc: Use gvec to decode XVCPSGN[SD]P |
Date: | Sat, 24 Sep 2022 14:43:33 +0000 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 |
On 9/23/22 21:47, Lucas Mateus Castro(alqotel) wrote:
+static void do_xvcpsgn_vec(unsigned vece, TCGv_vec t, TCGv_vec a, TCGv_vec b) +{ + TCGv_vec most_significant_bit = tcg_temp_new_vec_matching(t); + uint64_t msb = (vece == MO_32) ? SGN_MASK_SP : SGN_MASK_DP; + tcg_gen_dupi_vec(vece, most_significant_bit, msb); + tcg_gen_and_vec(vece, a, a, most_significant_bit); + tcg_gen_andc_vec(vece, b, b, most_significant_bit); + tcg_gen_or_vec(vece, t, a, b); + tcg_temp_free_vec(most_significant_bit); +}
tcg_constant_vec_matching, and tcg_gen_bitsel_vec. r~
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