RFR: 8293329: x86: Improve handling of constants in AES/GHASH stubs [v2]

[Vladimir Ivanov]

> Pre-generating constants saves on startup and static/dynamic footprint a bit, plus simplifies bootstrapping logic. 
> 
> As a downside, constants aren't guaranteed to be always reachable anymore, but since they are used from stubs, finding a scratch register when needed is not a problem.
> 
> Testing: 
> - [x] hs-tier1 - hs-tier4 w/ `-XX:+ForceUnreachable` 
> - [x] x86_32 build

Vladimir Ivanov has updated the pull request incrementally with 41 additional commits since the last revision:

 - Merge branch 'stub.x86_64.aes' into stub.x86_64.aes.consts
 - Merge branch 'master' into stub.x86_64.aes
 - 8293285: x86_64: Move libm stub implementations to StubGenerator
   
   Reviewed-by: kvn
 - 8293254: x86_64: Extract arraycopy stub implementations into a separate file
   
   Reviewed-by: dlong, kvn
 - 8293245: x86_64: Extract Adler32 stub implementation into stubGenerator_x86_64_adler.cpp
   
   Reviewed-by: kvn, dlong
 - 8264744: (fs) Use file cloning in Linux version of Files::copy method
   
   Reviewed-by: alanb
 - 8283929: GHA: Add RISC-V build config
   
   Reviewed-by: ihse, shade
 - 8292579: (tz) Update Timezone Data to 2022c
   
   Reviewed-by: naoto, alanb
 - 8293403: JfrResolution::on_jvmci_resolution crashes when caller is null
   
   Reviewed-by: never
 - 8291736: find_method_handle_intrinsic leaks Method*
   
   Reviewed-by: hseigel, iklam, dholmes
 - ... and 31 more: https://git.openjdk.org/jdk/compare/20d589e3...7c35132b

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/10152/files
  - new: https://git.openjdk.org/jdk/pull/10152/files/20d589e3..7c35132b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10152&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10152&range=00-01

  Stats: 33649 lines in 190 files changed: 16839 ins; 16134 del; 676 mod
  Patch: https://git.openjdk.org/jdk/pull/10152.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10152/head:pull/10152

PR: https://git.openjdk.org/jdk/pull/10152