Wilco Dijkstra via Gcc-patches writes:
>>> + || (size <= (max_copy_size / 2)
>>> + && (aarch64_tune_params.extra_tuning_flags
>>> + & AARCH64_EXTRA_TUNE_NO_LDP_STP_QREGS)))
>>> + copy_bits = GET_MODE_BITSIZE (TImode);
>>
>> (Looks like the mailer has eaten some tabs here.)
>
> The em
Hi Richard,
>> + if (size <= 24 || !TARGET_SIMD
>
> Nit: one condition per line when the condition spans multiple lines.
Fixed.
>> + || (size <= (max_copy_size / 2)
>> + && (aarch64_tune_params.extra_tuning_flags
>> + & AARCH64_EXTRA_TUNE_NO_LDP_STP_QREGS)))
>> + copy_bits = GET_M
Wilco Dijkstra writes:
> Improve the inline memcpy expansion. Use integer load/store for copies <= 24
> bytes
> instead of SIMD. Set the maximum copy to expand to 256 by default, except
> that -Os or
> no Neon expands up to 128 bytes. When using LDP/STP of Q-registers, also use
> Q-register
