[jdk15u-dev] RFR: 8248552: C2 crashes with SIGFPE due to division by zero

[Olga Mikhaltsova]

I'd like to backport JDK-8248552 to jdk15u for parity with jdk11u.
The original patch applied cleanly.
Tested with the test attached to the corresponding issue and the test added in this patch.

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Commit messages:
 - Backport 417e8e449df569f593b82ecd640fa01b6b762832

Changes: https://git.openjdk.java.net/jdk15u-dev/pull/20/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk15u-dev&pr=20&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8248552
  Stats: 117 lines in 2 files changed: 110 ins; 0 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk15u-dev/pull/20.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk15u-dev pull/20/head:pull/20

PR: https://git.openjdk.java.net/jdk15u-dev/pull/20