rb_big_mul       1376 bignum.c       		    x = rb_big_mul(x, x);
rb_big_mul       1378 bignum.c       		z = rb_big_mul(z, x);
rb_big_mul       1195 numeric.c      	    r = rb_big_mul(rb_int2big(a), rb_int2big(b));
rb_big_mul       1733 pack.c         			    big = rb_big_mul(big, big128);