[PATCH 3/3] Loongarch: Add ifunc support for strncmp{aligned, lsx}
dengjianbo
dengjianbo@loongson.cn
Tue Aug 22 06:37:42 GMT 2023
On 2023-08-22 11:56, Richard Henderson wrote:
>> +L(magic_num):
>> + .align 6
>> + .dword 0x0706050403020100
>> + .dword 0x0f0e0d0c0b0a0908
>> +ENTRY_NO_ALIGN(STRNCMP)
>> + beqz a2, L(ret0)
>> + pcaddi t0, -5
>> + andi a3, a0, 0xf
>> + vld vr2, t0, 0
>
> Why is the data not in .rodata or a mergable constant section?
>
> You can use pcalau12i and %pc_lo12 with vld to place this data anywhere.
>
>
> r~
Putting the data here is due to the performance. When the vld
instruction is executed, the data will be in the cache, it can
speed up the data loading.
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