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Re: [PATCH 4/9] target/mips: Simplify MSA TCG logic
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From: |
Richard Henderson |
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Subject: |
Re: [PATCH 4/9] target/mips: Simplify MSA TCG logic |
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Date: |
Thu, 3 Dec 2020 11:14:59 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 12/2/20 12:44 PM, Philippe Mathieu-Daudé wrote:
> Only decode MSA opcodes if MSA is present (implemented).
>
> Now than check_msa_access() will only be called if MSA is
> present, the only way to have MIPS_HFLAG_MSA unset is if
> MSA is disabled (bit CP0C5_MSAEn cleared, see previous
> commit). Therefore we can remove the 'reserved instruction'
> exception.
>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
> target/mips/translate.c | 22 ++++++++++------------
> 1 file changed, 10 insertions(+), 12 deletions(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
- [PATCH 0/9] target/mips: Simplify MSA TCG logic, Philippe Mathieu-Daudé, 2020/12/02
- [PATCH 1/9] target/mips: Introduce ase_msa_available() helper, Philippe Mathieu-Daudé, 2020/12/02
- [PATCH 2/9] target/mips: Simplify msa_reset(), Philippe Mathieu-Daudé, 2020/12/02
- [PATCH 3/9] target/mips: Use CP0_Config3 to set MIPS_HFLAG_MSA, Philippe Mathieu-Daudé, 2020/12/02
- [PATCH 4/9] target/mips: Simplify MSA TCG logic, Philippe Mathieu-Daudé, 2020/12/02
- Re: [PATCH 4/9] target/mips: Simplify MSA TCG logic,
Richard Henderson <=
- [PATCH 5/9] target/mips: Remove now unused ASE_MSA definition, Philippe Mathieu-Daudé, 2020/12/02
- [PATCH 6/9] target/mips: Alias MSA vector registers on FPU scalar registers, Philippe Mathieu-Daudé, 2020/12/02
- [PATCH 7/9] target/mips: Extract msa_translate_init() from mips_tcg_init(), Philippe Mathieu-Daudé, 2020/12/02