[jdk13u-dev] RFR: 8263425: AArch64: two potential bugs in C1 LIRGenerator::generate_address()

[Sergey Nazarkin]

Hi!
I'd like to backport JDK-8263425 to 13u to fix obvious bugs.  The patch applies cleanly.  Pass basic tests

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Commit messages:
 - Backport f7e0a09802f74e6432d170e6a00dc75cd053047b

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/150/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=150&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8263425
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/150.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/150/head:pull/150

PR: https://git.openjdk.java.net/jdk13u-dev/pull/150