RFR: 8266328: C2: Remove InlineWarmCalls

[Vladimir Kozlov]

On Thu, 29 Apr 2021 21:46:36 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

> Remove InlineWarmCalls and all relevant code.
> 
> It was introduced long time ago and didn't get much attention since then. I don't see any value in keeping it around.
> And there's incremental inlining support in C2 now.
> 
> Testing:
> - [x] hs-tier1 - hs-tier2

I assume @veresov uses different approach.

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Marked as reviewed by kvn (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/3805