8268369: SIGSEGV in PhaseCFG::implicit_null_check due to missing null check

[TheRealMDoerr]

This trivial null check fix should get backported for parity with 11.0.13-oracle.

---

Progress

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Issue

• JDK-8268369: SIGSEGV in PhaseCFG::implicit_null_check due to missing null check

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk11u-dev pull/108/head:pull/108
$ git checkout pull/108

Update a local copy of the PR:
$ git checkout pull/108
$ git pull https://git.openjdk.java.net/jdk11u-dev pull/108/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 108

View PR using the GUI difftool:
$ git pr show -t 108

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk11u-dev/pull/108.diff

[bridgekeeper]

👋 Welcome back mdoerr! A progress list of the required criteria for merging this PR into master 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 backport pull request has now been updated with issue from the original commit.

[openjdk]

@TheRealMDoerr This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8268369: SIGSEGV in PhaseCFG::implicit_null_check due to missing null check 

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At the time when this comment was updated there had been no new commits pushed to the master branch. If another commit should be pushed before you perform the /integrate command, your PR will be automatically rebased. If you prefer to avoid any potential automatic rebasing, please check the documentation for the /integrate command for further details.

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[mlbridge]

Webrevs

• 00: Full (73b76e06)

[TheRealMDoerr]

/integrate

[openjdk]

Going to push as commit c44da65.
Since your change was applied there have been 3 commits pushed to the master branch:

• 2beb7e7: 8218145: block_if_requested is not proper inlined due to size
• 02c0cf6: 8267424: CTW: C1 fails with "State must not be null"
• bdf8568: 8250588: Shenandoah: LRB needs to save/restore fp registers for runtime call

Your commit was automatically rebased without conflicts.

[openjdk]

@TheRealMDoerr Pushed as commit c44da65.

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