[jdk17u-dev] RFR: 8280511: AArch64: Combine shift and negate to a single instruction

[Dmitry Chuyko]

Original patch applies cleanly.

Testing: tier1, tier2, compiler/codegen/ShiftTest.java on aarch64.

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Commit messages:
 - Backport e572a525f55259402a21822c4045ba5cd4726d07

Changes: https://git.openjdk.org/jdk17u-dev/pull/754/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=754&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8280511
  Stats: 259 lines in 3 files changed: 257 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/754.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/754/head:pull/754

PR: https://git.openjdk.org/jdk17u-dev/pull/754