Changeset: 381bf869f784 Author: twisti Date: 2011-08-17 05:14 -0700 URL: http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/381bf869f784 7079626: x64 emits unnecessary REX prefix Reviewed-by: kvn, iveresov, never ! src/cpu/x86/vm/assembler_x86.cpp