RFR: 8287835: Add support for additional float/double to integral conversion for x86 [v5]

[Sandhya Viswanathan]

On Wed, 8 Jun 2022 16:31:06 GMT, Sandhya Viswanathan <sviswanathan at openjdk.org> wrote:

>> src/hotspot/cpu/x86/x86.ad line 7349:
>> 
>>> 7347:         assert(to_elem_bt == T_BYTE, "required");
>>> 7348:         __ evpmovdb($dst$$XMMRegister, $dst$$XMMRegister, vlen_enc);
>>> 7349:       }
>> 
>> We do support F2I cast on AVX2 and that can be extended for sub-word types using 
>> signed saturated lane packing instructions (PACKSSDW and PACKSSWB).
>
> I will file a separate RFE for this.

Link to RFE: https://bugs.openjdk.org/browse/JDK-8288043

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PR: https://git.openjdk.java.net/jdk/pull/9032