[jdk21u-dev] RFR: 8310308: IR Framework: check for type and size of vector nodes [v3]

[Goetz Lindenmaier]

> I backport this to improve testing of C2 in 22u. It will simplify backporting tests of fixes to C2, as, e.g. " 8313720: C2 SuperWord: wrong result with -XX:+UseVectorCmov -XX:+UseCMoveUnconditionally"
> 
> I had to trivially resolve three files:
> 
> test/hotspot/jtreg/compiler/loopopts/superword/TestDependencyOffsets.java
> Resolved the bugid in comment.
> 
> patching file test/hotspot/jtreg/compiler/vectorization/runner/BasicDoubleOpTest.java
> patching file test/hotspot/jtreg/compiler/vectorization/runner/BasicFloatOpTest.java
> These had to be resolved because "8308340: C2: Idealize Fma nodes" is not in 21. Trivial.
> That change is huge thus not a candidate for backport.
> 
> Further I include "8314513: [IR Framework] Some internal IR Framework tests are failing after JDK-8310308 on PPC and Cascade Lake".  This is a follow-ip fix of the tests.
> 
> All tests passed locally. 
> 
> It's a test-only change.

Goetz Lindenmaier has updated the pull request incrementally with one additional commit since the last revision:

  Fix failing test - revert to status of 21

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

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/29/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/29/files/326ac31e..b9ca277d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=29&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=29&range=01-02

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/29.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/29/head:pull/29

PR: https://git.openjdk.org/jdk21u-dev/pull/29