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Re: [PATCH v2 09/25] target/arm: Avoid tcg_const_ptr in disas_simd_zip_t


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v2 09/25] target/arm: Avoid tcg_const_ptr in disas_simd_zip_trn
Date: Wed, 8 Mar 2023 00:02:28 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.8.0

On 7/3/23 19:34, Richard Henderson wrote:
It is easy enough to use mov instead of or-with-zero
and relying on the optimizer to fold away the or.
Use an array for the output, rather than separate
tcg_res{l,h} variables.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
Cc: qemu-arm@nongnu.org
---
  target/arm/tcg/translate-a64.c | 41 +++++++++++++++++-----------------
  1 file changed, 21 insertions(+), 20 deletions(-)


+    for (i = 0; i <= is_q; ++i) {

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

+        write_vec_element(s, tcg_res[i], rd, i, MO_64);
      }
      clear_vec_high(s, is_q, rd);
  }




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