RFR: 8309660: C2: failed: XMM register should be 0-15 (UseKNLSetting and ConvF2HF)

Thu Jun 22 19:40:07 UTC 2023

On Thu, 15 Jun 2023 02:30:53 GMT, Quan Anh Mai <qamai at openjdk.org> wrote:

> Is there a way to stress-test the registers?

As an idea for such a stress test mode, is it possible to make `regF`/`vlRegF`, `regD`/`vlRegD` (and `vec`/`legVec` family of register classes) disjoint sets (`xmm0-xmm15` and `xmm16-xmm31`)? It should be enough to trigger relevant asserts whenever an AD instruction is used.

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PR Comment: https://git.openjdk.org/jdk/pull/14379#issuecomment-1603211564