RFR: L/Q again, step two [v4]

Frederic Parain fparain at openjdk.java.net
Wed May 19 13:15:19 UTC 2021

> Please review this second set of fixes for the L/Q transition.
> A few changes in C1, most changes in CI.
> CI always delegates to the runtime to know if a null-free array is flattened or not (to avoid duplication of the flattening decision code).
> With those changes, all tests in runtime/valhalla/inlinetypes now pass with -Xcomp -XX:TieredStopAtLevel=1 (at least on Linux x64).
> Some tests in compiler/valhalla/inlinetypes still fail but they will require more time to be investigated (some tests force use of C2 or expect code to be C2 compiled, but C2 is not fixed yet).
> Thank you,
> Fred

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

  Refactor ciArrayKlass::make()


  - all: https://git.openjdk.java.net/valhalla/pull/414/files
  - new: https://git.openjdk.java.net/valhalla/pull/414/files/01fb4956..bd779242

 - full: https://webrevs.openjdk.java.net/?repo=valhalla&pr=414&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=valhalla&pr=414&range=02-03

  Stats: 23 lines in 1 file changed: 2 ins; 11 del; 10 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/414.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/414/head:pull/414

PR: https://git.openjdk.java.net/valhalla/pull/414

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