Introduction: Q-descriptors and v-bytecodes

Posted on August 22, 2023

Since the inception of Valhalla JVM prototyping around 2015, many versions of the Valhalla VM prototype feature a new sort of VM type called Q-types, expressed by new descriptors for those types (QC; for some classes C where LC; is already a descriptor). Many also feature special bytecodes, beginning with the letter v, for operating on Q-type values …

More at https://cr.openjdk.org/~jrose/values/larval-values.html