Machine Code Snippets in Java - Vector ISA Extensions and Native Methods

Machine Code Snippets in Java - Vector ISA Extensions and Native Methods

Explore the intricacies of machine code snippets and vector ISA extensions in this 50-minute Java-focused talk. Delve into native method handles, comparing native code with JVM intrinsics, and examine vectorized memory copy techniques. Investigate the impedance mismatch between JVM and hardware, focusing on the Valhalla JVM. Learn about register masks, preservation calling conventions, vector boxing, allocation placement, and repeated unboxing. Discover the current status of vectorized hash implementations and discuss remaining work, including handling multiple return values.