[vector-unstable] RFR: Remove SVML stubs and JVM support for them

[Vladimir Ivanov]

> Let us wait till your "JVM interface refactor" patch is checked in vectorIntrinsics and merged to vector-unstable before pushing "SVML removal" to vector-ustable.

Sure!

> I will run the "JVM interface refactor" through our tests today.

Thanks! I'll wait for the results.

Best regards,
Vladimir Ivanov

> -----Original Message-----
> From: Vladimir Ivanov <vladimir.x.ivanov at oracle.com>
> Sent: Tuesday, March 24, 2020 2:53 PM
> To: Viswanathan, Sandhya <sandhya.viswanathan at intel.com>; panama-dev <panama-dev at openjdk.java.net>
> Subject: Re: [vector-unstable] RFR: Remove SVML stubs and JVM support for them
> 
> Thanks, Sandhya.
> 
> I'm still uncertain how vectorIntrinsics and vector-unstable branches interact right now.
> 
> It looks like vector-unstable is regularly synced with vectorIntrinsics, so we would like to minimize the divergence to simplify merging.
> 
> On the other hand, stabilization will diverge the code.
> 
> So, as I see it, at some point we need to stop regular merges and switch to jdk/jdk merges to simplify stabilization work.
> 
> I'm fine with delaying SVML removal until all planned patches are there.
> Let me know when it is a good time to push it.
> 
> Once the implementation is integrated into the mainline, we can sync it with vectorIntrinsics.
> 
> Best regards,
> Vladimir Ivanov
> 
> On 25.03.2020 00:41, Viswanathan, Sandhya wrote:
>> Hi Vladimir,
>>
>> The patch looks good to me. Thanks a lot for taking care of this.
>>
>> Best Regards,
>> Sandhya
>>
>> -----Original Message-----
>> From: panama-dev <panama-dev-bounces at openjdk.java.net> On Behalf Of
>> Vladimir Ivanov
>> Sent: Tuesday, March 24, 2020 8:08 AM
>> To: panama-dev <panama-dev at openjdk.java.net>
>> Subject: [vector-unstable] RFR: Remove SVML stubs and JVM support for
>> them
>>
>> http://cr.openjdk.java.net/~vlivanov/panama/vector-unstable/remove_svm
>> l/webrev.00/
>>
>> Considering SVML stubs aren't going to make it into the first version, I propose to remove relevant code from stabilization branch.
>>
>> The patch removes JVM support for SVML stubs (along with vector call
>> support) and migrates API implementation to scalar version.
>>
>> The webrev doesn't include the stubs, but I plan to remove them as well [1].
>>
>> Testing: jdk/incubator/vector tests all pass.
>>
>> Best regards,
>> Vladimir Ivanov
>>
>> [1]
>> R src/hotspot/os_cpu/linux_x86/svml_d_acos_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_asin_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_atan2_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_atan_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_cbrt_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_cos_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_cosh_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_exp_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_expm1_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_hypot_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_log10_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_log1p_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_log_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_pow_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_sin_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_sinh_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_tan_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_d_tanh_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_acos_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_asin_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_atan2_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_atan_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_cbrt_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_cos_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_cosh_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_exp_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_expm1_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_hypot_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_log10_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_log1p_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_log_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_pow_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_sin_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_sinh_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_tan_linux_x86.S
>> R src/hotspot/os_cpu/linux_x86/svml_s_tanh_linux_x86.S
>> R src/hotspot/os_cpu/windows_x86/svml_d_acos_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_asin_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_atan2_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_atan_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_cbrt_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_cos_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_cosh_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_exp_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_expm1_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_hypot_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_log10_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_log1p_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_log_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_pow_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_sin_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_sinh_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_tan_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_d_tanh_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_acos_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_asin_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_atan2_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_atan_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_cbrt_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_cos_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_cosh_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_exp_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_expm1_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_hypot_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_log10_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_log1p_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_log_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_pow_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_sin_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_sinh_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_tan_windows_x86.s
>> R src/hotspot/os_cpu/windows_x86/svml_s_tanh_windows_x86.s
>>