RFR [XS] 8041957: -XX:UseAVX=0 cause assert(UseAVX) failed

[Vladimir Kozlov]

On 4/25/14 6:37 PM, Christian Thalinger wrote:
> This is tricky.  Changing the assert means that we cannot catch the case where we were asked to not use AVX but we do.  Maybe we should enable AVX instruction temporarily by using:
>
> FlagSetting avx(UseAVX, 99);
>
> in generate_get_cpu_info() to be able to generate the instructions.

I will try it next week.

Thanks,
Vladimir

>
> On Apr 25, 2014, at 9:13 AM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
>
>> http://cr.openjdk.java.net/~kvn/8041957/webrev
>> https://bugs.openjdk.java.net/browse/JDK-8041957
>>
>> Use VM_Version::supports_avx() instead of UseAVX in vmovdqu instruction asserts.
>>
>> Thanks,
>> Vladimir
>