8292602: ZGC: C2 late barrier analysis uses invalid dominator information

[GoeLin]

I backport this for parity with 17.0.7-oracle.

---

Progress

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Issue

• JDK-8292602: ZGC: C2 late barrier analysis uses invalid dominator information

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev pull/997/head:pull/997
$ git checkout pull/997

Update a local copy of the PR:
$ git checkout pull/997
$ git pull https://git.openjdk.org/jdk17u-dev pull/997/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 997

View PR using the GUI difftool:
$ git pr show -t 997

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/997.diff

[bridgekeeper]

👋 Welcome back goetz! 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]

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

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

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

8292602: ZGC: C2 late barrier analysis uses invalid dominator information

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[mlbridge]

Webrevs

• 00: Full (10ec531a)

[GoeLin]

Pre-submit failure: CompensatedSums.java, known to be failing, Unrelated.

[GoeLin]

/integrate

[openjdk]

Going to push as commit 330105c.
Since your change was applied there have been 13 commits pushed to the master branch:

• 4be52ee: 8292297: Fix up loading of override java.security properties file
• 475ca04: 8281122: [IR Framework] Cleanup IR matching code in preparation for JDK-8280378
• d667e32: 8280889: java/lang/instrument/GetObjectSizeIntrinsicsTest.java fails with -XX:-UseCompressedOops
• 587d5c5: 8280166: Extend java/lang/instrument/GetObjectSizeIntrinsicsTest.java test cases
• 410fa44: 8258512: serviceability/sa/TestJmapCore.java timed out on macOS 10.13.6
• eb76fa3: 8270156: Add "randomness" and "stress" keys to JTreg tests which use StressGCM, StressLCM and/or StressIGVN
• cfb3a3c: 8235297: sun/security/ssl/SSLSessionImpl/ResumptionUpdateBoundValues.java fails intermittent
• 5976752: 8298093: improve cleanup and error handling of awt_parseColorModel in awt_parseImage.c
• 82790b0: 8295724: VirtualMachineError: Out of space in CodeCache for method handle intrinsic
• 633a763: 8297959: Provide better descriptions for some Operating System JFR events
• ... and 3 more: https://git.openjdk.org/jdk17u-dev/compare/6042c6b9bbacbff1bd47f087f0f19646a20eef97...master

Your commit was automatically rebased without conflicts.

[openjdk]

@GoeLin Pushed as commit 330105c.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.