8387131: [lworld] C2: revisit 8375694 for scalarized return values

[rwestrel]

In mainline, a single value can be returned from a call. With
valhalla, multiple values can be returned so the fix for 8375694 needs
to be adjusted.

---

• I confirm that I make this contribution in accordance with the OpenJDK Interim AI Policy.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed (1 review required, with at least 1 Committer)

Issue

• JDK-8387131: [lworld] C2: revisit 8375694 for scalarized return values (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/valhalla.git pull/2580/head:pull/2580
$ git checkout pull/2580

Update a local copy of the PR:
$ git checkout pull/2580
$ git pull https://git.openjdk.org/valhalla.git pull/2580/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 2580

View PR using the GUI difftool:
$ git pr show -t 2580

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/valhalla/pull/2580.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back roland! A progress list of the required criteria for merging this PR into lworld will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[rwestrel]

/template append

[openjdk]

@rwestrel The pull request template has been appended to the pull request body

[mlbridge]

Webrevs

• 00: Full (08708d47)