RFR: 8359424: Eliminate table lookup in Integer/Long toHexString [v2]

[Shaojin Wen]

On Thu, 21 Aug 2025 13:46:01 GMT, Chen Liang <liach at openjdk.org> wrote:

> Can we just update `formatUnsignedInt` to remove the table lookup? This patch essentially duplicates code and is more confusing than helpful. For example, we still need to check if this batch-fetched hex8 can have the loop for putting vectorized.

But that would result in two duplicate hex8 methods

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PR Comment: https://git.openjdk.org/jdk/pull/22942#issuecomment-3211235593