RFR: 8340093: C2 SuperWord: implement cost model [v4]

Thu Nov 6 08:16:07 UTC 2025

On Thu, 6 Nov 2025 07:52:58 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

> What exactly does Matcher::vector_op_pre_select_sz_estimate return? The number of instructions or some kind of throughput estimate?

I believe it tries to estimate the number of instructions generated by a node.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27803#discussion_r2497937659