I want to disable the vectorization performed by the c2 JIT Hotspot compiler in Java such that to create a baseline for a JMH benchmark suite.
For now I pass the optional JVM argument -XX:-UseSuperWord to deactivate the Super word loop optimization.
Doing that all SIMD packed assembly instruction (e.g, vaddps) are not used, instead I can find SIMD scalar instruction (e.g, vaddss).
So as far as I know this should be enough, but I wonder if Hotspot has other vector optimization? If yes how it possible to disable them?
