Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /* IEEE754 floating point arithmetic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * double precision: common utilities
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * MIPS floating point support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Copyright (C) 1994-2000 Algorithmics Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "ieee754dp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) int ieee754dp_cmp(union ieee754dp x, union ieee754dp y, int cmp, int sig)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	s64 vx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	s64 vy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	COMPXDP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	COMPYDP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	EXPLODEXDP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	EXPLODEYDP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	FLUSHXDP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	FLUSHYDP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	ieee754_clearcx();	/* Even clear inexact flag here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	if (ieee754_class_nan(xc) || ieee754_class_nan(yc)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		if (sig ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		    xc == IEEE754_CLASS_SNAN || yc == IEEE754_CLASS_SNAN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 			ieee754_setcx(IEEE754_INVALID_OPERATION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		return (cmp & IEEE754_CUN) != 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		vx = x.bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		vy = y.bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		if (vx < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 			vx = -vx ^ DP_SIGN_BIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		if (vy < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 			vy = -vy ^ DP_SIGN_BIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		if (vx < vy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 			return (cmp & IEEE754_CLT) != 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		else if (vx == vy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 			return (cmp & IEEE754_CEQ) != 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 			return (cmp & IEEE754_CGT) != 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }