8303508: Vector.lane() gets wrong value on x86

[TobiHartmann]

Backport of JDK-8303508. Applies cleanly. Approval is pending.

Thanks,
Tobias

---

Progress

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Issue

• JDK-8303508: Vector.lane() gets wrong value on x86

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[bridgekeeper]

👋 Welcome back thartmann! 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]

@TobiHartmann 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:

8303508: Vector.lane() gets wrong value on x86

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[mlbridge]

Webrevs

• 00: Full (db519156)

[TobiHartmann]

/integrate

[openjdk]

Going to push as commit 7680690.
Since your change was applied there have been 17 commits pushed to the master branch:

• 15bae6f: 8304683: Memory leak in WB_IsMethodCompatible
• 9c6b17d: 8303511: C2: assert(get_ctrl(n) == cle_out) during unrolling
• c23e1cc: 8301491: C2: java.lang.StringUTF16::indexOfChar intrinsic called with negative character argument
• db88ed0: 8290822: C2: assert in PhaseIdealLoop::do_unroll() is subject to undefined behavior
• 17dfaaf: 8300590: [JVMCI] BytecodeFrame.equals is broken
• cbc2f89: 8289748: C2 compiled code crashes with SIGFPE with -XX:+StressLCM and -XX:+StressGCM
• 0343ba4: 8299959: C2: CmpU::Value must filter overflow computation against local sub computation
• aae19b3: 8300079: SIGSEGV in LibraryCallKit::inline_string_copy due to constant NULL src argument
• ac96054: 8302595: use-after-free related to GraphKit::clone_map
• fcd422d: 8302594: use-after-free in Node::destruct
• ... and 7 more: https://git.openjdk.org/jdk20u/compare/0d71795814ed255c4a6e2b51cee01a264a407ad6...master

Your commit was automatically rebased without conflicts.

[openjdk]

@TobiHartmann Pushed as commit 7680690.

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