RFR: 8339299: C1 will miss type profile when inline final method [v2]

[kuaiwei]

> I found sometimes C1 will miss type profile and I tried to write a test to demonstrate it.
> It will happen with these conditions
> 1 It's a virtual call and the callee is a final method. So c1 will think it's static bound.
> 2 The interpreter never touch the callsite, so interpreter does not add type profile.
> 3 In c1 compilation, it will be inlined based on CHA.
> 4 In c2 compilation, the CHA is broken, but type profile is missing, so c2 can not inline it.

kuaiwei has updated the pull request incrementally with one additional commit since the last revision:

  Modify test case to use whitebox api

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/20786/files
  - new: https://git.openjdk.org/jdk/pull/20786/files/1455feb0..d1c0594a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20786&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20786&range=00-01

  Stats: 121 lines in 2 files changed: 44 ins; 44 del; 33 mod
  Patch: https://git.openjdk.org/jdk/pull/20786.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20786/head:pull/20786

PR: https://git.openjdk.org/jdk/pull/20786