8264151: ciMethod::ensure_method_data() should return false is loading resulted in empty state

[veresov]

ciMethodData::load_data() can set the state of the MDO to empty (if it's replaying a compile). In this case we should return false from ensure_method_data().

---

Progress

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Issue

• JDK-8264151: ciMethod::ensure_method_data() should return false is loading resulted in empty state

Reviewers

• Dean Long (@dean-long - Reviewer)
• Vladimir Kozlov (@vnkozlov - Reviewer)

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$ git checkout pull/3184
$ git pull https://git.openjdk.java.net/jdk pull/3184/head

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[mlbridge]

Webrevs

• 01: Full - Incremental (f4c6b85)
• 00: Full (ecff0da)

[dean-long]

How about keeping the replay-aware code only in ciMethodData::load_data()? It could return a boolean, then ensure_method_data() can do:

return _method_data->load_data();

and load_data() would do:

#ifndef PRODUCT
  if (ReplayCompiles) {
    ciReplay::initialize(this);
    if (is_empty()) {
      return false;
    }
  }
#endif
  return true;

[veresov]

Ok, we can to that.

[openjdk]

@veresov 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:

8264151: ciMethod::ensure_method_data() should return false is loading resulted in empty state

Reviewed-by: dlong, kvn

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 15 new commits pushed to the master branch:

• b006f22: 4833719: (bf) Views of MappedByteBuffers are not MappedByteBuffers, and cannot be forced
• 8307aa6: 8264165: jpackage BasicTest fails after JDK-8220266: Check help text contains plaform specific parameters
• c037e1e: 8263454: com.apple.laf.AquaFileChooserUI ignores the result of String.trim()
• a1e717f: 8264146: Make Mutex point to rather than embed _name
• f69afba: 8263300: add HtmlId for the block containing a class's description.
• d82464f: 8263528: Make static page ids safe from collision with language elements
• d602ae0: 8263884: Clean up os::is_allocatable() across Posix platforms
• a9d287a: 8260388: Listing (sub)packages at package level of API documentation
• 8120064: 8263781: C2: Cannot hoist independent load above arraycopy
• 9689863: 8262295: C2: Out-of-Bounds Array Load from Clone Source
• ... and 5 more: https://git.openjdk.java.net/jdk/compare/3d7f91223ec925e037fa4b22164cc1d0c97d08d9...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[veresov]

Thanks for the reviews!

[veresov]

/integrate

[openjdk]

@veresov Since your change was applied there have been 20 commits pushed to the master branch:

• 4e708e5: 8260862: JFR: New configure command for the jfr tool
• 2593196: 8264161: BigDecimal#stripTrailingZeros can throw undocumented ArithmeticException
• 2a5e0dd: 8262081: vmTestbase/nsk/jdi/ThreadDeathRequest/addThreadFilter/addthreadfilter001/TestDescription.java failed with "ERROR: eventSet1.size() != 3 :: 2"
• 374272f: 8261502: ECDHKeyAgreement: Allows alternate ECPrivateKey impl and revised exception handling
• dbc9e4b: 8253795: Implementation of JEP 391: macOS/AArch64 Port
• b006f22: 4833719: (bf) Views of MappedByteBuffers are not MappedByteBuffers, and cannot be forced
• 8307aa6: 8264165: jpackage BasicTest fails after JDK-8220266: Check help text contains plaform specific parameters
• c037e1e: 8263454: com.apple.laf.AquaFileChooserUI ignores the result of String.trim()
• a1e717f: 8264146: Make Mutex point to rather than embed _name
• f69afba: 8263300: add HtmlId for the block containing a class's description.
• ... and 10 more: https://git.openjdk.java.net/jdk/compare/3d7f91223ec925e037fa4b22164cc1d0c97d08d9...master

Your commit was automatically rebased without conflicts.

Pushed as commit fe8ef32.

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