RFR: 8341137: Optimize long vector multiplication using x86 VPMUL[U]DQ instruction [v2]

[Sandhya Viswanathan]

On Sun, 10 Nov 2024 07:36:55 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> Yes, this should ensure 0xFFFFFFFF.
>
> We land here only after checking if inputs are uints, didn't want redundant match, its just a convince routine for forwarding inputs. I will create a lambda for this.

uint check only ensures value <= 0xFFFFFFFF. Here we need value to be 0xFFFFFFFF.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21244#discussion_r1838479496