RFR: 8346931: Replace divisions by zero in sharedRuntimeTrans.cpp [v2]

[Matthias Baesken]

On Thu, 20 Mar 2025 19:54:45 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> For example, here's an unprotected one, where z may be zero: https://github.com/openjdk/jdk/blame/56038fb5a156568cce2e80f5db18b10ad61c06e4/src/hotspot/share/runtime/sharedRuntimeTrans.cpp#L519
> Probably zero handling should be it's own clause.

Looks like this is shown by jtreg test
java/lang/Math/PowTests
on macOS aarch64 


/priv/jenkins/client-home/workspace/openjdk-jdk-weekly-macos_aarch64-opt/jdk/src/hotspot/share/runtime/sharedRuntimeTrans.cpp:517:23: runtime error: division by zero
    #0 0x105599454 in SharedRuntime::dpow(double, double) sharedRuntimeTrans.cpp:668

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PR Comment: https://git.openjdk.org/jdk/pull/24136#issuecomment-2743377830