Re: [PATCH v1 07/15] tcg/riscv: Implement vector mov/dup{m/i}

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Re: [PATCH v1 07/15] tcg/riscv: Implement vector mov/dup{m/i}

From:	Richard Henderson
Subject:	Re: [PATCH v1 07/15] tcg/riscv: Implement vector mov/dup{m/i}
Date:	Tue, 20 Aug 2024 19:00:25 +1000
User-agent:	Mozilla Thunderbird

On 8/13/24 21:34, LIU Zhiwei wrote:

+    case TCG_TYPE_V64:
+    case TCG_TYPE_V128:
+    case TCG_TYPE_V256:
+        tcg_debug_assert(ret > TCG_REG_V0 && arg > TCG_REG_V0);
+        tcg_target_set_vec_config(s, type, prev_vece);
+        tcg_out_opc_vv(s, OPC_VMV_V_V, ret, TCG_REG_V0, arg, true);
+        break;


Is it worth using whole register move (vmvNr.v) for the appropriate VLEN?


r~

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Re: [PATCH v1 05/15] tcg/riscv: Add riscv vset{i}vli support, (continued)
- [PATCH v1 06/15] tcg/riscv: Implement vector load/store, LIU Zhiwei, 2024/08/13
  - Re: [PATCH v1 06/15] tcg/riscv: Implement vector load/store, Richard Henderson, 2024/08/14
    - Re: [PATCH v1 06/15] tcg/riscv: Implement vector load/store, LIU Zhiwei, 2024/08/18
- [PATCH v1 07/15] tcg/riscv: Implement vector mov/dup{m/i}, LIU Zhiwei, 2024/08/13
  - Re: [PATCH v1 07/15] tcg/riscv: Implement vector mov/dup{m/i}, Richard Henderson, 2024/08/14
    - Re: [PATCH v1 07/15] tcg/riscv: Implement vector mov/dup{m/i}, LIU Zhiwei, 2024/08/15
  - Re: [PATCH v1 07/15] tcg/riscv: Implement vector mov/dup{m/i}, Richard Henderson <=
    - Re: [PATCH v1 07/15] tcg/riscv: Implement vector mov/dup{m/i}, LIU Zhiwei, 2024/08/20
- [PATCH v1 08/15] tcg/riscv: Add support for basic vector opcodes, LIU Zhiwei, 2024/08/13
  - Re: [PATCH v1 08/15] tcg/riscv: Add support for basic vector opcodes, Richard Henderson, 2024/08/14
    - Re: [PATCH v1 08/15] tcg/riscv: Add support for basic vector opcodes, LIU Zhiwei, 2024/08/19
  - Re: [PATCH v1 08/15] tcg/riscv: Add support for basic vector opcodes, Richard Henderson, 2024/08/14
    - Re: [PATCH v1 08/15] tcg/riscv: Add support for basic vector opcodes, LIU Zhiwei, 2024/08/19
    - Re: [PATCH v1 08/15] tcg/riscv: Add support for basic vector opcodes, Richard Henderson, 2024/08/20
- [PATCH v1 09/15] tcg/riscv: Implement vector cmp ops, LIU Zhiwei, 2024/08/13
  - Re: [PATCH v1 09/15] tcg/riscv: Implement vector cmp ops, Richard Henderson, 2024/08/14
    - Re: [PATCH v1 09/15] tcg/riscv: Implement vector cmp ops, LIU Zhiwei, 2024/08/27

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