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// SPDX-License-Identifier: GPL-2.0-only
/* IEEE754 floating point arithmetic
* double precision: common utilities
*/
/*
* MIPS floating point support
* Copyright (C) 1994-2000 Algorithmics Ltd.
*/
#include "ieee754dp.h"
int ieee754dp_cmp(union ieee754dp x, union ieee754dp y, int cmp, int sig)
{
s64 vx;
s64 vy;
COMPXDP;
COMPYDP;
EXPLODEXDP;
EXPLODEYDP;
FLUSHXDP;
FLUSHYDP;
ieee754_clearcx(); /* Even clear inexact flag here */
if (ieee754_class_nan(xc) || ieee754_class_nan(yc)) {
if (sig ||
xc == IEEE754_CLASS_SNAN || yc == IEEE754_CLASS_SNAN)
ieee754_setcx(IEEE754_INVALID_OPERATION);
return (cmp & IEEE754_CUN) != 0;
} else {
vx = x.bits;
vy = y.bits;
if (vx < 0)
vx = -vx ^ DP_SIGN_BIT;
if (vy < 0)
vy = -vy ^ DP_SIGN_BIT;
if (vx < vy)
return (cmp & IEEE754_CLT) != 0;
else if (vx == vy)
return (cmp & IEEE754_CEQ) != 0;
else
return (cmp & IEEE754_CGT) != 0;
}
}
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