RFR: 8351635: C2 ROR/ROL: assert failed: Long constant expected [v2]

[Jatin Bhateja]

> This bug fix patch relaxes the strict assertion check to allow other pattern matches for degenerated long vector ROL/ROR operations with non-constant scalar shift values.  
> 
> Kindly review and share feedback.
> 
> Best Regards,
> Jatin

Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:

  Update test/hotspot/jtreg/compiler/vectorapi/TestVectorRotateScalarCount.java
  
  Co-authored-by: Tobias Hartmann <tobias.hartmann at oracle.com>

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/25493/files
  - new: https://git.openjdk.org/jdk/pull/25493/files/c68b7468..9ec47164

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25493&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25493&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/25493.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25493/head:pull/25493

PR: https://git.openjdk.org/jdk/pull/25493