RFR: 8320347: Emulate vblendvp[sd] on ECore [v3]

[Volodymyr Paprotski]

> Splitting vblendvp[sd] into boolean operations is bit faster on ECore, get up to 30% gain
> 
> 
> =============== BEFORE ===============
> Benchmark                 (SIZE)  Mode  Cnt    Score   Error  Units
> VectorSignum.floatSignum     256  avgt    3   77.766 ± 0.049  ns/op
> VectorSignum.floatSignum     512  avgt    3  154.889 ± 0.242  ns/op
> VectorSignum.floatSignum    1024  avgt    3  306.130 ± 0.605  ns/op
> VectorSignum.floatSignum    2048  avgt    3  609.965 ± 0.927  ns/op
> VectorSignum.doubleSignum     256  avgt    3   151.874 ± 1.748  ns/op
> VectorSignum.doubleSignum     512  avgt    3   303.080 ± 0.310  ns/op
> VectorSignum.doubleSignum    1024  avgt    3   607.517 ± 0.597  ns/op
> VectorSignum.doubleSignum    2048  avgt    3  1214.282 ± 1.834  ns/op
> Benchmark                Mode  Cnt    Score   Error  Units
> MaxMinOptimizeTest.dAdd  avgt    3   77.240 ± 0.029  us/op
> MaxMinOptimizeTest.dMax  avgt    3  137.334 ± 0.128  us/op
> MaxMinOptimizeTest.dMin  avgt    3  137.160 ± 0.465  us/op
> MaxMinOptimizeTest.dMul  avgt    3   77.231 ± 0.051  us/op
> MaxMinOptimizeTest.fAdd  avgt    3   77.165 ± 0.003  us/op
> MaxMinOptimizeTest.fMax  avgt    3  107.428 ± 1.501  us/op
> MaxMinOptimizeTest.fMin  avgt    3  107.186 ± 0.022  us/op
> MaxMinOptimizeTest.fMul  avgt    3   77.164 ± 0.012  us/op
> 
> =============== AFTER ===============
> Benchmark                 (SIZE)  Mode  Cnt    Score   Error  Units
> VectorSignum.floatSignum     256  avgt    3   61.816 ± 1.980  ns/op
> VectorSignum.floatSignum     512  avgt    3  117.251 ± 0.052  ns/op
> VectorSignum.floatSignum    1024  avgt    3  231.356 ± 0.397  ns/op
> VectorSignum.floatSignum    2048  avgt    3  458.904 ± 0.774  ns/op
> VectorSignum.doubleSignum     256  avgt    3  121.449 ± 0.184  ns/op
> VectorSignum.doubleSignum     512  avgt    3  241.662 ± 0.189  ns/op
> VectorSignum.doubleSignum    1024  avgt    3  482.365 ± 0.165  ns/op
> VectorSignum.doubleSignum    2048  avgt    3  962.412 ± 1.401  ns/op
> Benchmark                Mode  Cnt    Score   Error  Units
> MaxMinOptimizeTest.dAdd  avgt    3   77.240 ± 0.029  us/op
> MaxMinOptimizeTest.dMax  avgt    3  125.701 ± 0.082  us/op
> MaxMinOptimizeTest.dMin  avgt    3  124.704 ± 0.119  us/op
> MaxMinOptimizeTest.dMul  avgt    3   77.232 ± 0.028  us/op
> MaxMinOptimizeTest.fAdd  avgt    3   77.169 ± 0.103  us/op
> MaxMinOptimizeTest.fMax  avgt    3   97.939 ± 0.477  us/op
> MaxMinOptimizeTest.fMin  avgt    3   98.012 ± 0.154  us/op
> MaxMinOptimizeTest.fMul  avgt    3   77.174 ± 0.012  us/op

Volodymyr Paprotski has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:

 - further review comments
 - Merge remote-tracking branch 'jdk/master' into vp-ecore2
 - Merge remote-tracking branch 'jdk/master' into vp-ecore2
 - review comments
 - emulate vblend on ecores

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/16716/files
  - new: https://git.openjdk.org/jdk/pull/16716/files/74c68fe6..8d8d0d45

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=16716&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16716&range=01-02

  Stats: 8461 lines in 347 files changed: 6354 ins; 1279 del; 828 mod
  Patch: https://git.openjdk.org/jdk/pull/16716.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16716/head:pull/16716

PR: https://git.openjdk.org/jdk/pull/16716