XMM0              856 nanojit/NativeX64.cpp         Register retReg = ( ins->isop(LIR_fcall) ? XMM0 : retRegs[0] );
XMM0              893 nanojit/NativeX64.cpp         Register fr = XMM0;
XMM0              908 nanojit/NativeX64.cpp                 asm_regarg(sz, arg, Register(XMM0+arg_index));
XMM0             1350 nanojit/NativeX64.cpp         Register r = ins->isop(LIR_ret) ? RAX : XMM0;
XMM0              153 nanojit/Nativei386.h     static const RegisterMask XmmRegs = 1<<XMM0|1<<XMM1|1<<XMM2|1<<XMM3|1<<XMM4|1<<XMM5|1<<XMM6|1<<XMM7;