IRFPMathOp       1669 lj_asm_x86.h     IRFPMathOp fpm = ir->o == IR_FPMATH ? (IRFPMathOp)ir->op2 : IRFPM_OTHER;
IRFPMathOp        747 lj_opt_fold.c    IRFPMathOp op = (IRFPMathOp)fleft->op2;