RFR: 8329030: Fix bugs in APX NDD code generation for OpenJDK PR

Mon Apr 14 23:33:25 UTC 2025

This PR fixes the bugs discovered in the APX NDD code generation PR (#23501) that got integrated into OpenJDK.

The following compiler tests uncovered these bugs:

test/hotspot/jtreg/compiler/c2/cr6340864/TestLongVect.java
test/hotspot/jtreg/compiler/c2/cr7192963/TestLongVect.java
test/hotspot/jtreg/compiler/vectorization/runner/BasicLongOpTest.java
test/hotspot/jtreg/compiler/vectorapi/TestMaskedMacroLogicVector.java

After the bug fixes in this PR, using Intel Software Development Emulator (SDE) it was verified that the above tests are working correctly when using Intel APX.

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Commit messages:
 - 8329030: Fix bugs in APX NDD code generation for OpenJDK PR

Changes: https://git.openjdk.org/jdk/pull/24637/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24637&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329030
  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/24637.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24637/head:pull/24637

PR: https://git.openjdk.org/jdk/pull/24637