1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 24 */ 25 /* 26 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 #if defined(ELFOBJ) 31 #pragma weak fminl = __fminl 32 #endif 33 34 #include "libm.h" /* for islessequal macro */ 35 36 long double 37 __fminl(long double x, long double y) { 38 union { 39 #if defined(__sparc) 40 unsigned i[4]; 41 #elif defined(__x86) 42 unsigned i[3]; 43 #else 44 #error Unknown architecture 45 #endif 46 long double ld; 47 } xx, yy; 48 unsigned s; 49 50 /* if y is nan, replace it by x */ 51 if (y != y) 52 y = x; 53 54 /* if x is nan, replace it by y */ 55 if (x != x) 56 x = y; 57 58 /* At this point, x and y are either both numeric, or both NaN */ 59 if (!isnan(x) && !islessequal(x, y)) 60 x = y; 61 62 /* 63 * set the sign of the result if either x or y has its sign set 64 */ 65 xx.ld = x; 66 yy.ld = y; 67 #if defined(__sparc) 68 s = (xx.i[0] | yy.i[0]) & 0x80000000; 69 xx.i[0] |= s; 70 #elif defined(__x86) 71 s = (xx.i[2] | yy.i[2]) & 0x8000; 72 xx.i[2] |= s; 73 #else 74 #error Unknown architecture 75 #endif 76 77 return (xx.ld); 78 } 79