RFR: 8293999: [JVMCI] need support for aligned constants in generated code larger than 8 bytes [v5]

[Boris Ulasevich]

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

Boris Ulasevich has updated the pull request incrementally with one additional commit since the last revision:

  comment update

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10392/files
  - new: https://git.openjdk.org/jdk/pull/10392/files/102e33c7..19be053f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10392&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10392&range=03-04

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 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