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11210 libm should be cstyle(1ONBLD) clean
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--- old/usr/src/lib/libm/common/m9x/nearbyintl.c
+++ new/usr/src/lib/libm/common/m9x/nearbyintl.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 24 */
25 +
25 26 /*
26 27 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
27 28 * Use is subject to license terms.
28 29 */
29 30
30 31 #pragma weak nearbyintl = __nearbyintl
31 32
32 33 #include "libm.h"
33 34 #include "fma.h"
34 35 #include "fenv_inlines.h"
35 36
36 37 #if defined(__sparc)
37 -
38 38 static union {
39 39 unsigned i;
40 40 float f;
41 41 } snan = { 0x7f800001 };
42 -
43 42 long double
44 -__nearbyintl(long double x) {
43 +__nearbyintl(long double x)
44 +{
45 45 union {
46 46 unsigned i[4];
47 47 long double q;
48 48 } xx;
49 +
49 50 unsigned hx, sx, i, frac;
50 51 unsigned int fsr;
51 52 int rm, j;
52 - volatile float dummy;
53 + volatile float dummy;
53 54
54 55 xx.q = x;
55 56 sx = xx.i[0] & 0x80000000;
56 57 hx = xx.i[0] & ~0x80000000;
57 58
58 59 /* handle trivial cases */
59 - if (hx >= 0x406f0000) { /* x is nan, inf, or already integral */
60 + if (hx >= 0x406f0000) { /* x is nan, inf, or already integral */
60 61 /* check for signaling nan */
61 - if ((hx > 0x7fff0000 || (hx == 0x7fff0000 &&
62 - (xx.i[1] | xx.i[2] | xx.i[3]))) && !(hx & 0x8000)) {
62 + if ((hx > 0x7fff0000 || (hx == 0x7fff0000 && (xx.i[1] |
63 + xx.i[2] | xx.i[3]))) && !(hx & 0x8000)) {
63 64 dummy = snan.f;
64 65 dummy += snan.f;
65 66 xx.i[0] = sx | hx | 0x8000;
66 67 }
68 +
67 69 return (xx.q);
68 - } else if ((hx | xx.i[1] | xx.i[2] | xx.i[3]) == 0) /* x is zero */
70 + } else if ((hx | xx.i[1] | xx.i[2] | xx.i[3]) == 0) { /* x is zero */
69 71 return (x);
72 + }
70 73
71 74 /* get the rounding mode */
72 75 __fenv_getfsr32(&fsr);
73 76 rm = fsr >> 30;
74 77
75 78 /* flip the sense of directed roundings if x is negative */
76 79 if (sx)
77 80 rm ^= rm >> 1;
78 81
79 82 /* handle |x| < 1 */
80 83 if (hx < 0x3fff0000) {
81 - if (rm == FSR_RP || (rm == FSR_RN && (hx >= 0x3ffe0000 &&
82 - ((hx & 0xffff) | xx.i[1] | xx.i[2] | xx.i[3]))))
84 + if (rm == FSR_RP || (rm == FSR_RN && (hx >= 0x3ffe0000 && ((hx &
85 + 0xffff) | xx.i[1] | xx.i[2] | xx.i[3]))))
83 86 xx.i[0] = sx | 0x3fff0000;
84 87 else
85 88 xx.i[0] = sx;
89 +
86 90 xx.i[1] = xx.i[2] = xx.i[3] = 0;
87 91 return (xx.q);
88 92 }
89 93
90 94 /* round x at the integer bit */
91 95 j = 0x406f - (hx >> 16);
96 +
92 97 if (j >= 96) {
93 98 i = 1 << (j - 96);
94 99 frac = ((xx.i[0] << 1) << (127 - j)) | (xx.i[1] >> (j - 96));
100 +
95 101 if ((xx.i[1] & (i - 1)) | xx.i[2] | xx.i[3])
96 102 frac |= 1;
103 +
97 104 if (!frac)
98 105 return (x);
106 +
99 107 xx.i[1] = xx.i[2] = xx.i[3] = 0;
100 108 xx.i[0] &= ~(i - 1);
109 +
101 110 if (rm == FSR_RP || (rm == FSR_RN && (frac > 0x80000000u ||
102 - (frac == 0x80000000 && (xx.i[0] & i)))))
111 + (frac == 0x80000000 && (xx.i[0] & i)))))
103 112 xx.i[0] += i;
104 113 } else if (j >= 64) {
105 114 i = 1 << (j - 64);
106 115 frac = ((xx.i[1] << 1) << (95 - j)) | (xx.i[2] >> (j - 64));
116 +
107 117 if ((xx.i[2] & (i - 1)) | xx.i[3])
108 118 frac |= 1;
119 +
109 120 if (!frac)
110 121 return (x);
122 +
111 123 xx.i[2] = xx.i[3] = 0;
112 124 xx.i[1] &= ~(i - 1);
125 +
113 126 if (rm == FSR_RP || (rm == FSR_RN && (frac > 0x80000000u ||
114 - (frac == 0x80000000 && (xx.i[1] & i))))) {
127 + (frac == 0x80000000 && (xx.i[1] & i))))) {
115 128 xx.i[1] += i;
129 +
116 130 if (xx.i[1] == 0)
117 131 xx.i[0]++;
118 132 }
119 133 } else if (j >= 32) {
120 134 i = 1 << (j - 32);
121 135 frac = ((xx.i[2] << 1) << (63 - j)) | (xx.i[3] >> (j - 32));
136 +
122 137 if (xx.i[3] & (i - 1))
123 138 frac |= 1;
139 +
124 140 if (!frac)
125 141 return (x);
142 +
126 143 xx.i[3] = 0;
127 144 xx.i[2] &= ~(i - 1);
145 +
128 146 if (rm == FSR_RP || (rm == FSR_RN && (frac > 0x80000000u ||
129 - (frac == 0x80000000 && (xx.i[2] & i))))) {
147 + (frac == 0x80000000 && (xx.i[2] & i))))) {
130 148 xx.i[2] += i;
149 +
131 150 if (xx.i[2] == 0)
132 151 if (++xx.i[1] == 0)
133 152 xx.i[0]++;
134 153 }
135 154 } else {
136 155 i = 1 << j;
137 156 frac = (xx.i[3] << 1) << (31 - j);
157 +
138 158 if (!frac)
139 159 return (x);
160 +
140 161 xx.i[3] &= ~(i - 1);
162 +
141 163 if (rm == FSR_RP || (rm == FSR_RN && (frac > 0x80000000u ||
142 - (frac == 0x80000000 && (xx.i[3] & i))))) {
164 + (frac == 0x80000000 && (xx.i[3] & i))))) {
143 165 xx.i[3] += i;
166 +
144 167 if (xx.i[3] == 0)
145 168 if (++xx.i[2] == 0)
146 169 if (++xx.i[1] == 0)
147 170 xx.i[0]++;
148 171 }
149 172 }
150 173
151 174 return (xx.q);
152 175 }
153 -
154 176 #elif defined(__x86)
155 -
156 177 /* inline template */
157 178 extern long double frndint(long double);
158 -
159 179 long double
160 -__nearbyintl(long double x) {
180 +__nearbyintl(long double x)
181 +{
161 182 long double z;
162 183 unsigned oldcwsw, cwsw;
163 184
164 185 /* save the control and status words, mask the inexact exception */
165 186 __fenv_getcwsw(&oldcwsw);
166 187 cwsw = oldcwsw | 0x00200000;
167 188 __fenv_setcwsw(&cwsw);
168 189
169 190 z = frndint(x);
170 191
171 192 /*
172 193 * restore the control and status words, preserving all but the
173 194 * inexact flag
174 195 */
175 196 __fenv_getcwsw(&cwsw);
176 197 oldcwsw |= (cwsw & 0x1f);
177 198 __fenv_setcwsw(&oldcwsw);
178 199
179 200 return (z);
180 201 }
181 -
182 202 #else
183 203 #error Unknown architecture
184 204 #endif
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