RFR: 8293999: [JVMCI] need support for aligned constants in generated code larger than 8 bytes

[Boris Ulasevich]

8293999: [JVMCI] need support for aligned constants in generated code larger than 8 bytes

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Commit messages:
 - 8293999: [JVMCI] need support for aligned constants in generated code larger than 8 bytes

Changes: https://git.openjdk.org/jdk/pull/10392/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10392&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293999
  Stats: 17 lines in 2 files changed: 17 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/10392.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10392/head:pull/10392

PR: https://git.openjdk.org/jdk/pull/10392