RFR: 8325467: Support methods with many arguments in C2

[Dean Long]

On Wed, 7 Aug 2024 10:58:57 GMT, Daniel Lundén <dlunden at openjdk.org> wrote:

> Do you know why we use int in OptoReg but short in OptoRegPair? I don't see why we should not change it to short in OptoReg as well for consistency.

I don't know the reason for the inconsistency.  I agree they should use the same type.  I suggest using OptoReg::Name in OptoRegPair, and changing its type to short, along with checks that we don't overflow the smaller value.

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PR Comment: https://git.openjdk.org/jdk/pull/20404#issuecomment-2276526582