1/* This file is distributed under the University of Illinois Open Source
2 * License. See LICENSE.TXT for details.
3 */
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1// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 2// See https://llvm.org/LICENSE.txt for license information. 3// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
4
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5#include "DD.h"
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5#include "../int_math.h"
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6#include "DD.h" |
7
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8#define makeFinite(x) { \
9 (x).s.hi = crt_copysign(crt_isinf((x).s.hi) ? 1.0 : 0.0, (x).s.hi); \
10 (x).s.lo = 0.0; \
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8#define makeFinite(x) \ 9 { \ 10 (x).s.hi = crt_copysign(crt_isinf((x).s.hi) ? 1.0 : 0.0, (x).s.hi); \ 11 (x).s.lo = 0.0; \ |
12 } 13
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13#define zeroNaN(x) { \
14 if (crt_isnan((x).s.hi)) { \
15 (x).s.hi = crt_copysign(0.0, (x).s.hi); \
16 (x).s.lo = 0.0; \
17 } \
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14#define zeroNaN(x) \ 15 { \ 16 if (crt_isnan((x).s.hi)) { \ 17 (x).s.hi = crt_copysign(0.0, (x).s.hi); \ 18 (x).s.lo = 0.0; \ 19 } \ |
20 } 21
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20long double _Complex
21__multc3(long double a, long double b, long double c, long double d)
22{
23 long double ac = __gcc_qmul(a,c);
24 long double bd = __gcc_qmul(b,d);
25 long double ad = __gcc_qmul(a,d);
26 long double bc = __gcc_qmul(b,c);
27
28 DD real = { .ld = __gcc_qsub(ac,bd) };
29 DD imag = { .ld = __gcc_qadd(ad,bc) };
30
31 if (crt_isnan(real.s.hi) && crt_isnan(imag.s.hi))
32 {
33 int recalc = 0;
34
35 DD aDD = { .ld = a };
36 DD bDD = { .ld = b };
37 DD cDD = { .ld = c };
38 DD dDD = { .ld = d };
39
40 if (crt_isinf(aDD.s.hi) || crt_isinf(bDD.s.hi))
41 {
42 makeFinite(aDD);
43 makeFinite(bDD);
44 zeroNaN(cDD);
45 zeroNaN(dDD);
46 recalc = 1;
47 }
48
49 if (crt_isinf(cDD.s.hi) || crt_isinf(dDD.s.hi))
50 {
51 makeFinite(cDD);
52 makeFinite(dDD);
53 zeroNaN(aDD);
54 zeroNaN(bDD);
55 recalc = 1;
56 }
57
58 if (!recalc)
59 {
60 DD acDD = { .ld = ac };
61 DD bdDD = { .ld = bd };
62 DD adDD = { .ld = ad };
63 DD bcDD = { .ld = bc };
64
65 if (crt_isinf(acDD.s.hi) || crt_isinf(bdDD.s.hi) ||
66 crt_isinf(adDD.s.hi) || crt_isinf(bcDD.s.hi))
67 {
68 zeroNaN(aDD);
69 zeroNaN(bDD);
70 zeroNaN(cDD);
71 zeroNaN(dDD);
72 recalc = 1;
73 }
74 }
75
76 if (recalc)
77 {
78 real.s.hi = CRT_INFINITY * (aDD.s.hi*cDD.s.hi - bDD.s.hi*dDD.s.hi);
79 real.s.lo = 0.0;
80 imag.s.hi = CRT_INFINITY * (aDD.s.hi*dDD.s.hi + bDD.s.hi*cDD.s.hi);
81 imag.s.lo = 0.0;
82 }
83 }
84
85 long double _Complex z;
86 __real__ z = real.ld;
87 __imag__ z = imag.ld;
88
89 return z;
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22long double _Complex __multc3(long double a, long double b, long double c, 23 long double d) { 24 long double ac = __gcc_qmul(a, c); 25 long double bd = __gcc_qmul(b, d); 26 long double ad = __gcc_qmul(a, d); 27 long double bc = __gcc_qmul(b, c); 28 29 DD real = {.ld = __gcc_qsub(ac, bd)}; 30 DD imag = {.ld = __gcc_qadd(ad, bc)}; 31 32 if (crt_isnan(real.s.hi) && crt_isnan(imag.s.hi)) { 33 int recalc = 0; 34 35 DD aDD = {.ld = a}; 36 DD bDD = {.ld = b}; 37 DD cDD = {.ld = c}; 38 DD dDD = {.ld = d}; 39 40 if (crt_isinf(aDD.s.hi) || crt_isinf(bDD.s.hi)) { 41 makeFinite(aDD); 42 makeFinite(bDD); 43 zeroNaN(cDD); 44 zeroNaN(dDD); 45 recalc = 1; 46 } 47 48 if (crt_isinf(cDD.s.hi) || crt_isinf(dDD.s.hi)) { 49 makeFinite(cDD); 50 makeFinite(dDD); 51 zeroNaN(aDD); 52 zeroNaN(bDD); 53 recalc = 1; 54 } 55 56 if (!recalc) { 57 DD acDD = {.ld = ac}; 58 DD bdDD = {.ld = bd}; 59 DD adDD = {.ld = ad}; 60 DD bcDD = {.ld = bc}; 61 62 if (crt_isinf(acDD.s.hi) || crt_isinf(bdDD.s.hi) || 63 crt_isinf(adDD.s.hi) || crt_isinf(bcDD.s.hi)) { 64 zeroNaN(aDD); 65 zeroNaN(bDD); 66 zeroNaN(cDD); 67 zeroNaN(dDD); 68 recalc = 1; 69 } 70 } 71 72 if (recalc) { 73 real.s.hi = CRT_INFINITY * (aDD.s.hi * cDD.s.hi - bDD.s.hi * dDD.s.hi); 74 real.s.lo = 0.0; 75 imag.s.hi = CRT_INFINITY * (aDD.s.hi * dDD.s.hi + bDD.s.hi * cDD.s.hi); 76 imag.s.lo = 0.0; 77 } 78 } 79 80 long double _Complex z; 81 __real__ z = real.ld; 82 __imag__ z = imag.ld; 83 84 return z; |
85}
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