RFR: 8275448: [REDO] AArch64: Implement string_compare intrinsic in SVE

Fri Oct 22 00:42:22 UTC 2021

After JDK-8269559 was integrated there are failures in tier1 testing
across Mac OS X 11.4 (aarch64) machines. Please see JDK-8275263.

This patch is NOT functional; rather, this tends to verify potential
toolchain issues as the original patch pass testing on other
platforms.

In this patch, we remove new SVE-related matching rules and register
class introduced in the original patch to minimally affect the
non-SVE part.

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Commit messages:
 - 8275448: [REDO] AArch64: Implement string_compare intrinsic in SVE

Changes: https://git.openjdk.java.net/jdk/pull/6072/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6072&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8275448
  Stats: 104 lines in 6 files changed: 97 ins; 0 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6072.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6072/head:pull/6072

PR: https://git.openjdk.java.net/jdk/pull/6072