8317257: RISC-V: llvm build broken

[VladimirKempik]

Please review this small fix to make hotspot compilable with clang on risc-v.
It supposed to fix next error:

/home/user/openjdk/jdk/src/hotspot/cpu/riscv/c1_LIRAssembler_riscv.cpp:1518:10: error: call to member function 'null_check' is ambiguous
      __ null_check(obj);
      ~~~^~~~~~~~~~
/home/user/openjdk/jdk/src/hotspot/cpu/riscv/macroAssembler_riscv.hpp:238:16: note: candidate function
  virtual void null_check(Register reg, int offset = -1);
               ^
/home/user/openjdk/jdk/src/hotspot/cpu/riscv/c1_MacroAssembler_riscv.hpp:109:8: note: candidate function
  void null_check(Register r, Label *Lnull = nullptr) { MacroAssembler::null_check(r); }
       ^
1 error generated.

---

Progress

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Issue

• JDK-8317257: RISC-V: llvm build broken (Bug - P3)

Reviewers

• Fei Yang (@RealFYang - Reviewer)

Reviewing

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[bridgekeeper]

👋 Welcome back vkempik! 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]

@VladimirKempik The following label will be automatically applied to this pull request:

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[mlbridge]

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• 01: Full - Incremental (9743e5ca)
• 00: Full (f946defb)

[RealFYang]

I see this was once introduced by https://bugs.openjdk.org/browse/JDK-8278479.
Maybe align with aarch64 by calling: __ null_check(obj, -1); directly?

[VladimirKempik]

Thanks for taking a look, also fixed some static_assert being without message, it's c++17 only feature according to clang error

[RealFYang]

Updated change LGTM. Thanks.

[openjdk]

@VladimirKempik 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:

8317257: RISC-V: llvm build broken

Reviewed-by: fyang

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 11 new commits pushed to the master branch:

• 355811a: 8316559: Refactor some util/Calendar tests to JUnit
• ecb5e8a: 8317264: Pattern.Bound has static fields that should be static final.
• f2c221d: 8317119: Remove unused imports in the java.util.stream package
• 09dad0e: 8313810: BoxLayout uses

  instead of list for layout options

• 73a47f0: 4622866: javax.swing.text.Document.remove(int, int) has a misleading picture
• cfcbfc6: 8316879: RegionMatches1Tests fails if CompactStrings are disabled after JDK-8302163
• ca5eee2: 8316445: Mark com/sun/management/HotSpotDiagnosticMXBean/CheckOrigin.java as vm.flagless
• 060db1b: 8315031: YoungPLABSize and OldPLABSize not aligned by ObjectAlignmentInBytes
• 3481a48: 8316974: ListFormat creation is unsuccessful for some of the supported Locales
• 29348b3: 8316894: make test TEST="jtreg:test/jdk/..." fails on AIX
• ... and 1 more: https://git.openjdk.org/jdk/compare/fc98998627443d6e73ac70661f47f48b30525712...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.

[VladimirKempik]

/integrate

[openjdk]

Going to push as commit bd7bb67.
Since your change was applied there have been 12 commits pushed to the master branch:

• 0259da9: 8301686: TLS 1.3 handshake fails if server_name doesn't match resuming session
• 355811a: 8316559: Refactor some util/Calendar tests to JUnit
• ecb5e8a: 8317264: Pattern.Bound has static fields that should be static final.
• f2c221d: 8317119: Remove unused imports in the java.util.stream package
• 09dad0e: 8313810: BoxLayout uses

  instead of list for layout options

• 73a47f0: 4622866: javax.swing.text.Document.remove(int, int) has a misleading picture
• cfcbfc6: 8316879: RegionMatches1Tests fails if CompactStrings are disabled after JDK-8302163
• ca5eee2: 8316445: Mark com/sun/management/HotSpotDiagnosticMXBean/CheckOrigin.java as vm.flagless
• 060db1b: 8315031: YoungPLABSize and OldPLABSize not aligned by ObjectAlignmentInBytes
• 3481a48: 8316974: ListFormat creation is unsuccessful for some of the supported Locales
• ... and 2 more: https://git.openjdk.org/jdk/compare/fc98998627443d6e73ac70661f47f48b30525712...master

Your commit was automatically rebased without conflicts.

[openjdk]

@VladimirKempik Pushed as commit bd7bb67.

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