19 Jun
2017
19 Jun
'17
4:30 p.m.
This is a PPC-specific hotspot optimization that leverages the mtfprd/mffprd instructions for for movement between general purpose and floating point registers (rather than through memory). It yields a ~35% improvement measured via a microbenchmark. Please review: Bug: https://bugs.openjdk.java.net/browse/JDK-8181809 Webrev: http://cr.openjdk.java.net/~gromero/8181809/v1/ Thanks, Matt