Hi Richard,
> Yeah, somewhat. But won't we go on to test has_lse2 anyway, due to:
>
> # elif defined (LSE2_LRCPC3_ATOP)
> # define IFUNC_NCOND(N) 2
> # define IFUNC_COND_1 (has_rcpc3 (hwcap, features))
> # define IFUNC_COND_2 (has_lse2 (hwcap, features))
>
> If we want to reduce the
Wilco Dijkstra writes:
> Hi Richard,
>
>>> + /* LSE2 is a prerequisite for atomic LDIAPP/STILP. */
>>> + if (!(hwcap & HWCAP_USCAT))
>>> return false;
>>
>> Is there a reason for not using has_lse2 here? It'd be good to have
>> a comment if so.
>
> Yes, the MRS instructions cause expensiv
Hi Richard,
>> + /* LSE2 is a prerequisite for atomic LDIAPP/STILP. */
>> + if (!(hwcap & HWCAP_USCAT))
>> return false;
>
> Is there a reason for not using has_lse2 here? It'd be good to have
> a comment if so.
Yes, the MRS instructions cause expensive traps, so we try to avoid them whe
Wilco Dijkstra writes:
> ping
>
>
> Simplify and cleanup ifunc selection logic. Since LRCPC3 does
> not imply LSE2, has_rcpc3() should also check LSE2 is enabled.
>
> Passes regress and bootstrap, OK for commit?
>
> libatomic:
> * config/linux/aarch64/host-config.h (has_lse2): Cleanup.
ping
Simplify and cleanup ifunc selection logic. Since LRCPC3 does
not imply LSE2, has_rcpc3() should also check LSE2 is enabled.
Passes regress and bootstrap, OK for commit?
libatomic:
* config/linux/aarch64/host-config.h (has_lse2): Cleanup.
(has_lse128): Likewise.
(
Simplify and cleanup ifunc selection logic. Since LRCPC3 does
not imply LSE2, has_rcpc3() should also check LSE2 is enabled.
Passes regress and bootstrap, OK for commit?
libatomic:
* config/linux/aarch64/host-config.h (has_lse2): Cleanup.
(has_lse128): Likewise.
(has_rcp
