asm_fusefref      460 lj_asm_x86.h   	asm_fusefref(as, ir, xallow);
asm_fusefref      484 lj_asm_x86.h       asm_fusefref(as, ir, RSET_EMPTY);
asm_fusefref     1372 lj_asm_x86.h     asm_fusefref(as, ir, RSET_GPR);
asm_fusefref     1395 lj_asm_x86.h       asm_fusefref(as, ir, RSET_GPR);
asm_fusefref     1442 lj_asm_x86.h       asm_fusefref(as, IR(ir->op1), allow);