RFR: 8286182: C2: crash with SIGFPE when executing compiled code

Wed May 18 15:51:22 UTC 2022

This patch backs out the changes made by [JDK-8285390](https://bugs.openjdk.java.net/browse/JDK-8285390) and [JDK-8284742](https://bugs.openjdk.java.net/browse/JDK-8284742) since there are failures due to div nodes floating above its validity checks.

Thanks.

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Commit messages:
 - Revert "8284742: x86: Handle integral division overflow during parsing"
 - Revert "8285390: PPC64: Handle integral division overflow during parsing"

Changes: https://git.openjdk.java.net/jdk/pull/8774/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8774&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8286182
  Stats: 967 lines in 25 files changed: 364 ins; 476 del; 127 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8774.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8774/head:pull/8774

PR: https://git.openjdk.java.net/jdk/pull/8774