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Re: [RFC PATCH 10/43] target/loongarch: Implement vaddw/vsubw
From: |
Richard Henderson |
Subject: |
Re: [RFC PATCH 10/43] target/loongarch: Implement vaddw/vsubw |
Date: |
Sat, 24 Dec 2022 09:48:08 -0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.2 |
On 12/24/22 00:16, Song Gao wrote:
+TRANS(vaddwev_h_b, gen_vvv, gen_helper_vaddwev_h_b)
+TRANS(vaddwev_w_h, gen_vvv, gen_helper_vaddwev_w_h)
+TRANS(vaddwev_d_w, gen_vvv, gen_helper_vaddwev_d_w)
+TRANS(vaddwev_q_d, gen_vvv, gen_helper_vaddwev_q_d)
+TRANS(vaddwod_h_b, gen_vvv, gen_helper_vaddwod_h_b)
+TRANS(vaddwod_w_h, gen_vvv, gen_helper_vaddwod_w_h)
+TRANS(vaddwod_d_w, gen_vvv, gen_helper_vaddwod_d_w)
+TRANS(vaddwod_q_d, gen_vvv, gen_helper_vaddwod_q_d)
+TRANS(vsubwev_h_b, gen_vvv, gen_helper_vsubwev_h_b)
+TRANS(vsubwev_w_h, gen_vvv, gen_helper_vsubwev_w_h)
+TRANS(vsubwev_d_w, gen_vvv, gen_helper_vsubwev_d_w)
+TRANS(vsubwev_q_d, gen_vvv, gen_helper_vsubwev_q_d)
+TRANS(vsubwod_h_b, gen_vvv, gen_helper_vsubwod_h_b)
+TRANS(vsubwod_w_h, gen_vvv, gen_helper_vsubwod_w_h)
+TRANS(vsubwod_d_w, gen_vvv, gen_helper_vsubwod_d_w)
+TRANS(vsubwod_q_d, gen_vvv, gen_helper_vsubwod_q_d)
These can be implemented with a combination of vector shift + vector add.
+TRANS(vaddwev_h_bu, gen_vvv, gen_helper_vaddwev_h_bu)
+TRANS(vaddwev_w_hu, gen_vvv, gen_helper_vaddwev_w_hu)
+TRANS(vaddwev_d_wu, gen_vvv, gen_helper_vaddwev_d_wu)
+TRANS(vaddwev_q_du, gen_vvv, gen_helper_vaddwev_q_du)
+TRANS(vaddwod_h_bu, gen_vvv, gen_helper_vaddwod_h_bu)
+TRANS(vaddwod_w_hu, gen_vvv, gen_helper_vaddwod_w_hu)
+TRANS(vaddwod_d_wu, gen_vvv, gen_helper_vaddwod_d_wu)
+TRANS(vaddwod_q_du, gen_vvv, gen_helper_vaddwod_q_du)
+TRANS(vsubwev_h_bu, gen_vvv, gen_helper_vsubwev_h_bu)
+TRANS(vsubwev_w_hu, gen_vvv, gen_helper_vsubwev_w_hu)
+TRANS(vsubwev_d_wu, gen_vvv, gen_helper_vsubwev_d_wu)
+TRANS(vsubwev_q_du, gen_vvv, gen_helper_vsubwev_q_du)
+TRANS(vsubwod_h_bu, gen_vvv, gen_helper_vsubwod_h_bu)
+TRANS(vsubwod_w_hu, gen_vvv, gen_helper_vsubwod_w_hu)
+TRANS(vsubwod_d_wu, gen_vvv, gen_helper_vsubwod_d_wu)
+TRANS(vsubwod_q_du, gen_vvv, gen_helper_vsubwod_q_du)
These can be implemented with a combination of vector and + vector add.
+TRANS(vaddwev_h_bu_b, gen_vvv, gen_helper_vaddwev_h_bu_b)
+TRANS(vaddwev_w_hu_h, gen_vvv, gen_helper_vaddwev_w_hu_h)
+TRANS(vaddwev_d_wu_w, gen_vvv, gen_helper_vaddwev_d_wu_w)
+TRANS(vaddwev_q_du_d, gen_vvv, gen_helper_vaddwev_q_du_d)
+TRANS(vaddwod_h_bu_b, gen_vvv, gen_helper_vaddwod_h_bu_b)
+TRANS(vaddwod_w_hu_h, gen_vvv, gen_helper_vaddwod_w_hu_h)
+TRANS(vaddwod_d_wu_w, gen_vvv, gen_helper_vaddwod_d_wu_w)
+TRANS(vaddwod_q_du_d, gen_vvv, gen_helper_vaddwod_q_du_d)
Likewise.
For an example of how to bundle vector operations, see e.g. gen_gvec_rax1 and subroutines
in target/arm/translate-a64.c. There are many others, but ask if you need more help.
r~
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- [RFC PATCH 10/43] target/loongarch: Implement vaddw/vsubw, Song Gao, 2022/12/24
- Re: [RFC PATCH 10/43] target/loongarch: Implement vaddw/vsubw,
Richard Henderson <=
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