authorgravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2022-12-09 14:58:16-07:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2022-12-10 03:06:17-05:00
log02b221051a180a252bb3a092b1cc054469c6fa15
tree5105489a81f50526e6cbff3232541769dcf949b6
parentb483c796c66e3a415a7590bfe62f316fa8fa70e6

fix aarch64-windows-gnu libc

We were missing some math functions. After this enhancement I verified that I was able to cross-compile ninja.exe for aarch64-windows and produce a viable binary.

32 files changed, 780 insertions(+), 5 deletions(-)

lib/libc/mingw/math/arm-common/acosh.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9double acosh(double x)
10{
11 if (x < 1.0)
12 return NAN;
13 if (isinf(x*x))
14 return log(2) + log(x);
15 return log(x + sqrt(x*x - 1));
16}
lib/libc/mingw/math/arm-common/acoshf.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9float acoshf(float x)
10{
11 if (x < 1.0)
12 return NAN;
13 if (isinf(x*x))
14 return logf(2) + logf(x);
15 return logf(x + sqrtf(x*x - 1));
16}
lib/libc/mingw/math/arm-common/acoshl.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9long double acoshl(long double x)
10{
11#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
12 return acosh(x);
13#else
14#error Not supported on your platform yet
15#endif
16}
lib/libc/mingw/math/arm-common/asinh.c created+18
...@@ -0,0 +1,18 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9double asinh(double x)
10{
11 if (isinf(x*x + 1)) {
12 if (x > 0)
13 return log(2) + log(x);
14 else
15 return -log(2) - log(-x);
16 }
17 return log(x + sqrt(x*x + 1));
18}
lib/libc/mingw/math/arm-common/asinhf.c created+18
...@@ -0,0 +1,18 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9float asinhf(float x)
10{
11 if (isinf(x*x + 1)) {
12 if (x > 0)
13 return logf(2) + logf(x);
14 else
15 return -logf(2) - logf(-x);
16 }
17 return logf(x + sqrtf(x*x + 1));
18}
lib/libc/mingw/math/arm-common/asinhl.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9long double asinhl(long double x)
10{
11#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
12 return asinh(x);
13#else
14#error Not supported on your platform yet
15#endif
16}
lib/libc/mingw/math/arm-common/atanh.c created+17
...@@ -0,0 +1,17 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9double atanh(double x)
10{
11 if (x > 1 || x < -1)
12 return NAN;
13 if (-1e-6 < x && x < 1e-6)
14 return x + x*x*x/3;
15 else
16 return (log(1 + x) - log(1 - x)) / 2;
17}
lib/libc/mingw/math/arm-common/atanhf.c created+17
...@@ -0,0 +1,17 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9float atanhf(float x)
10{
11 if (x > 1 || x < -1)
12 return NAN;
13 if (-1e-6 < x && x < 1e-6)
14 return x + x*x*x/3;
15 else
16 return (logf(1 + x) - logf(1 - x)) / 2;
17}
lib/libc/mingw/math/arm-common/atanhl.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9long double atanhl(long double x)
10{
11#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
12 return atanh(x);
13#else
14#error Not supported on your platform yet
15#endif
16}
lib/libc/mingw/math/arm-common/copysignl.c created+11
...@@ -0,0 +1,11 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6#include <math.h>
7
8long double copysignl(long double x, long double y)
9{
10 return copysign(x, y);
11}
lib/libc/mingw/math/arm-common/expm1.c created+12
...@@ -0,0 +1,12 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9double expm1(double x)
10{
11 return exp(x) - 1.0;
12}
lib/libc/mingw/math/arm-common/expm1f.c created+15
...@@ -0,0 +1,15 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9float expm1f(float x)
10{
11 // Intentionally using double version of exp() here in the float version of
12 // expm1, to preserve as much accuracy as possible in the intermediate
13 // result.
14 return exp(x) - 1.0;
15}
lib/libc/mingw/math/arm-common/expm1l.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9long double expm1l(long double x)
10{
11#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
12 return expm1(x);
13#else
14#error Not supported on your platform yet
15#endif
16}
lib/libc/mingw/math/arm-common/ilogb.c created+19
...@@ -0,0 +1,19 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8#include <limits.h>
9
10int ilogb(double x)
11{
12 if (x == 0.0)
13 return FP_ILOGB0;
14 if (isinf(x))
15 return INT_MAX;
16 if (isnan(x))
17 return FP_ILOGBNAN;
18 return (int) logb(x);
19}
lib/libc/mingw/math/arm-common/ilogbf.c created+19
...@@ -0,0 +1,19 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8#include <limits.h>
9
10int ilogbf(float x)
11{
12 if (x == 0.0)
13 return FP_ILOGB0;
14 if (isinf(x))
15 return INT_MAX;
16 if (isnan(x))
17 return FP_ILOGBNAN;
18 return (int) logbf(x);
19}
lib/libc/mingw/math/arm-common/ilogbl.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9int ilogbl(long double x)
10{
11#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
12 return ilogb(x);
13#else
14#error Not supported on your platform yet
15#endif
16}
lib/libc/mingw/math/arm-common/ldexpl.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9long double ldexpl(long double x, int n)
10{
11#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
12 return ldexp(x, n);
13#else
14#error Not supported on your platform yet
15#endif
16}
lib/libc/mingw/math/arm-common/log1p.c created+12
...@@ -0,0 +1,12 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9double log1p(double x)
10{
11 return log(x + 1.0);
12}
lib/libc/mingw/math/arm-common/log1pf.c created+15
...@@ -0,0 +1,15 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9float log1pf(float x)
10{
11 // Intentionally using double version of log() here in the float version of
12 // log1p, to preserve as much accuracy as possible in the intermediate
13 // parameter.
14 return log(x + 1.0);
15}
lib/libc/mingw/math/arm-common/log1pl.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9long double log1pl(long double x)
10{
11#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
12 return log1p(x);
13#else
14#error Not supported on your platform yet
15#endif
16}
lib/libc/mingw/math/arm-common/logb.c created+17
...@@ -0,0 +1,17 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8#include <limits.h>
9
10extern double (* __MINGW_IMP_SYMBOL(_logb))(double);
11
12double logb(double x)
13{
14 if (isinf(x))
15 return INFINITY;
16 return __MINGW_IMP_SYMBOL(_logb)(x);
17}
lib/libc/mingw/math/arm-common/logbf.c created+17
...@@ -0,0 +1,17 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8#include <limits.h>
9
10extern float (* __MINGW_IMP_SYMBOL(_logbf))(float);
11
12float logbf(float x)
13{
14 if (isinf(x))
15 return INFINITY;
16 return __MINGW_IMP_SYMBOL(_logbf)(x);
17}
lib/libc/mingw/math/arm-common/logbl.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9long double logbl(long double x)
10{
11#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
12 return logb(x);
13#else
14#error Not supported on your platform yet
15#endif
16}
lib/libc/mingw/math/arm-common/powf.c created+21
...@@ -0,0 +1,21 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8#include <limits.h>
9
10extern float (* __MINGW_IMP_SYMBOL(powf))(float, float);
11
12float powf(float x, float y)
13{
14 if (x == 1.0f)
15 return 1.0f;
16 if (y == 0.0f)
17 return 1.0f;
18 if (x == -1.0f && isinf(y))
19 return 1.0f;
20 return __MINGW_IMP_SYMBOL(powf)(x, y);
21}
lib/libc/mingw/math/arm-common/powl.c created+16
...@@ -0,0 +1,16 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8
9long double powl(long double x, long double y)
10{
11#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
12 return pow(x, y);
13#else
14#error Not supported on your platform yet
15#endif
16}
lib/libc/mingw/math/arm-common/remainder.c created+14
...@@ -0,0 +1,14 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8#include <errno.h>
9
10double remainder(double x, double y)
11{
12 int iret;
13 return remquo(x, y, &iret);
14}
lib/libc/mingw/math/arm-common/remainderf.c created+14
...@@ -0,0 +1,14 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8#include <errno.h>
9
10float remainderf(float x, float y)
11{
12 int iret;
13 return remquof(x, y, &iret);
14}
lib/libc/mingw/math/arm-common/remainderl.c created+17
...@@ -0,0 +1,17 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8#include <errno.h>
9
10long double remainderl(long double x, long double y)
11{
12#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
13 return remainder(x, y);
14#else
15#error Not supported on your platform yet
16#endif
17}
lib/libc/mingw/math/arm-common/remquol.c created+17
...@@ -0,0 +1,17 @@
1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6
7#include <math.h>
8#include <errno.h>
9
10long double remquol(long double x, long double y, int *quo)
11{
12#if defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
13 return remquo(x, y, quo);
14#else
15#error Not supported on your platform yet
16#endif
17}
lib/libc/mingw/math/arm-common/s_remquo.c created+154
...@@ -0,0 +1,154 @@
1/* @(#)e_fmod.c 1.3 95/01/18 */
2/*-
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
5 *
6 * Developed at SunSoft, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
9 * is preserved.
10 * ====================================================
11 */
12
13#include <sys/cdefs.h>
14
15#include <float.h>
16
17#include <math.h>
18#include "../bsd_private_base.h"
19
20static const double Zero[] = {0.0, -0.0,};
21
22/*
23 * Return the IEEE remainder and set *quo to the last n bits of the
24 * quotient, rounded to the nearest integer. We choose n=31 because
25 * we wind up computing all the integer bits of the quotient anyway as
26 * a side-effect of computing the remainder by the shift and subtract
27 * method. In practice, this is far more bits than are needed to use
28 * remquo in reduction algorithms.
29 */
30double
31remquo(double x, double y, int *quo)
32{
33 int32_t n,hx,hy,hz,ix,iy,sx,i;
34 u_int32_t lx,ly,lz,q,sxy;
35
36 EXTRACT_WORDS(hx,lx,x);
37 EXTRACT_WORDS(hy,ly,y);
38 sxy = (hx ^ hy) & 0x80000000;
39 sx = hx&0x80000000; /* sign of x */
40 hx ^=sx; /* |x| */
41 hy &= 0x7fffffff; /* |y| */
42
43 /* purge off exception values */
44 if((hy|ly)==0||(hx>=0x7ff00000)|| /* y=0,or x not finite */
45 ((hy|((ly|-ly)>>31))>0x7ff00000)) /* or y is NaN */
46 return nan_mix_op(x, y, *)/nan_mix_op(x, y, *);
47 if(hx<=hy) {
48 if((hx<hy)||(lx<ly)) {
49 q = 0;
50 goto fixup; /* |x|<|y| return x or x-y */
51 }
52 if(lx==ly) {
53 *quo = (sxy ? -1 : 1);
54 return Zero[(u_int32_t)sx>>31]; /* |x|=|y| return x*0*/
55 }
56 }
57
58 /* determine ix = ilogb(x) */
59 if(hx<0x00100000) { /* subnormal x */
60 if(hx==0) {
61 for (ix = -1043, i=lx; i>0; i<<=1) ix -=1;
62 } else {
63 for (ix = -1022,i=(hx<<11); i>0; i<<=1) ix -=1;
64 }
65 } else ix = (hx>>20)-1023;
66
67 /* determine iy = ilogb(y) */
68 if(hy<0x00100000) { /* subnormal y */
69 if(hy==0) {
70 for (iy = -1043, i=ly; i>0; i<<=1) iy -=1;
71 } else {
72 for (iy = -1022,i=(hy<<11); i>0; i<<=1) iy -=1;
73 }
74 } else iy = (hy>>20)-1023;
75
76 /* set up {hx,lx}, {hy,ly} and align y to x */
77 if(ix >= -1022)
78 hx = 0x00100000|(0x000fffff&hx);
79 else { /* subnormal x, shift x to normal */
80 n = -1022-ix;
81 if(n<=31) {
82 hx = (hx<<n)|(lx>>(32-n));
83 lx <<= n;
84 } else {
85 hx = lx<<(n-32);
86 lx = 0;
87 }
88 }
89 if(iy >= -1022)
90 hy = 0x00100000|(0x000fffff&hy);
91 else { /* subnormal y, shift y to normal */
92 n = -1022-iy;
93 if(n<=31) {
94 hy = (hy<<n)|(ly>>(32-n));
95 ly <<= n;
96 } else {
97 hy = ly<<(n-32);
98 ly = 0;
99 }
100 }
101
102 /* fix point fmod */
103 n = ix - iy;
104 q = 0;
105 while(n--) {
106 hz=hx-hy;lz=lx-ly; if(lx<ly) hz -= 1;
107 if(hz<0){hx = hx+hx+(lx>>31); lx = lx+lx;}
108 else {hx = hz+hz+(lz>>31); lx = lz+lz; q++;}
109 q <<= 1;
110 }
111 hz=hx-hy;lz=lx-ly; if(lx<ly) hz -= 1;
112 if(hz>=0) {hx=hz;lx=lz;q++;}
113
114 /* convert back to floating value and restore the sign */
115 if((hx|lx)==0) { /* return sign(x)*0 */
116 q &= 0x7fffffff;
117 *quo = (sxy ? -q : q);
118 return Zero[(u_int32_t)sx>>31];
119 }
120 while(hx<0x00100000) { /* normalize x */
121 hx = hx+hx+(lx>>31); lx = lx+lx;
122 iy -= 1;
123 }
124 if(iy>= -1022) { /* normalize output */
125 hx = ((hx-0x00100000)|((iy+1023)<<20));
126 } else { /* subnormal output */
127 n = -1022 - iy;
128 if(n<=20) {
129 lx = (lx>>n)|((u_int32_t)hx<<(32-n));
130 hx >>= n;
131 } else if (n<=31) {
132 lx = (hx<<(32-n))|(lx>>n); hx = 0;
133 } else {
134 lx = hx>>(n-32); hx = 0;
135 }
136 }
137fixup:
138 INSERT_WORDS(x,hx,lx);
139 y = fabs(y);
140 if (y < 0x1p-1021) {
141 if (x+x>y || (x+x==y && (q & 1))) {
142 q++;
143 x-=y;
144 }
145 } else if (x>0.5*y || (x==0.5*y && (q & 1))) {
146 q++;
147 x-=y;
148 }
149 GET_HIGH_WORD(hx,x);
150 SET_HIGH_WORD(x,hx^sx);
151 q &= 0x7fffffff;
152 *quo = (sxy ? -q : q);
153 return x;
154}
lib/libc/mingw/math/arm-common/s_remquof.c created+121
...@@ -0,0 +1,121 @@
1/* @(#)e_fmod.c 1.3 95/01/18 */
2/*-
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
5 *
6 * Developed at SunSoft, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
9 * is preserved.
10 * ====================================================
11 */
12
13#include <sys/cdefs.h>
14
15#include <math.h>
16#include "../bsd_private_base.h"
17
18static const float Zero[] = {0.0, -0.0,};
19
20/*
21 * Return the IEEE remainder and set *quo to the last n bits of the
22 * quotient, rounded to the nearest integer. We choose n=31 because
23 * we wind up computing all the integer bits of the quotient anyway as
24 * a side-effect of computing the remainder by the shift and subtract
25 * method. In practice, this is far more bits than are needed to use
26 * remquo in reduction algorithms.
27 */
28float
29remquof(float x, float y, int *quo)
30{
31 int32_t n,hx,hy,hz,ix,iy,sx,i;
32 u_int32_t q,sxy;
33
34 GET_FLOAT_WORD(hx,x);
35 GET_FLOAT_WORD(hy,y);
36 sxy = (hx ^ hy) & 0x80000000;
37 sx = hx&0x80000000; /* sign of x */
38 hx ^=sx; /* |x| */
39 hy &= 0x7fffffff; /* |y| */
40
41 /* purge off exception values */
42 if(hy==0||hx>=0x7f800000||hy>0x7f800000) /* y=0,NaN;or x not finite */
43 return nan_mix_op(x, y, *)/nan_mix_op(x, y, *);
44 if(hx<hy) {
45 q = 0;
46 goto fixup; /* |x|<|y| return x or x-y */
47 } else if(hx==hy) {
48 *quo = (sxy ? -1 : 1);
49 return Zero[(u_int32_t)sx>>31]; /* |x|=|y| return x*0*/
50 }
51
52 /* determine ix = ilogb(x) */
53 if(hx<0x00800000) { /* subnormal x */
54 for (ix = -126,i=(hx<<8); i>0; i<<=1) ix -=1;
55 } else ix = (hx>>23)-127;
56
57 /* determine iy = ilogb(y) */
58 if(hy<0x00800000) { /* subnormal y */
59 for (iy = -126,i=(hy<<8); i>0; i<<=1) iy -=1;
60 } else iy = (hy>>23)-127;
61
62 /* set up {hx,lx}, {hy,ly} and align y to x */
63 if(ix >= -126)
64 hx = 0x00800000|(0x007fffff&hx);
65 else { /* subnormal x, shift x to normal */
66 n = -126-ix;
67 hx <<= n;
68 }
69 if(iy >= -126)
70 hy = 0x00800000|(0x007fffff&hy);
71 else { /* subnormal y, shift y to normal */
72 n = -126-iy;
73 hy <<= n;
74 }
75
76 /* fix point fmod */
77 n = ix - iy;
78 q = 0;
79 while(n--) {
80 hz=hx-hy;
81 if(hz<0) hx = hx << 1;
82 else {hx = hz << 1; q++;}
83 q <<= 1;
84 }
85 hz=hx-hy;
86 if(hz>=0) {hx=hz;q++;}
87
88 /* convert back to floating value and restore the sign */
89 if(hx==0) { /* return sign(x)*0 */
90 q &= 0x7fffffff;
91 *quo = (sxy ? -q : q);
92 return Zero[(u_int32_t)sx>>31];
93 }
94 while(hx<0x00800000) { /* normalize x */
95 hx <<= 1;
96 iy -= 1;
97 }
98 if(iy>= -126) { /* normalize output */
99 hx = ((hx-0x00800000)|((iy+127)<<23));
100 } else { /* subnormal output */
101 n = -126 - iy;
102 hx >>= n;
103 }
104fixup:
105 SET_FLOAT_WORD(x,hx);
106 y = fabsf(y);
107 if (y < 0x1p-125f) {
108 if (x+x>y || (x+x==y && (q & 1))) {
109 q++;
110 x-=y;
111 }
112 } else if (x>0.5f*y || (x==0.5f*y && (q & 1))) {
113 q++;
114 x-=y;
115 }
116 GET_FLOAT_WORD(hx,x);
117 SET_FLOAT_WORD(x,hx^sx);
118 q &= 0x7fffffff;
119 *quo = (sxy ? -q : q);
120 return x;
121}
src/mingw.zig+39-5
...@@ -1018,7 +1018,44 @@ const mingwex_x86_src = [_][]const u8{...@@ -1018,7 +1018,44 @@ const mingwex_x86_src = [_][]const u8{
1018 "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "trunc.S",1018 "math" ++ path.sep_str ++ "x86" ++ path.sep_str ++ "trunc.S",
1019};1019};
10201020
1021const mingwex_arm32_src = [_][]const u8{1021const arm_common = [_][]const u8{
1022 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "acosh.c",
1023 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "acoshf.c",
1024 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "acoshl.c",
1025 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "asinh.c",
1026 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "asinhf.c",
1027 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "asinhl.c",
1028 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "atanh.c",
1029 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "atanhf.c",
1030 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "atanhl.c",
1031 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "copysignl.c",
1032 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "expm1.c",
1033 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "expm1f.c",
1034 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "expm1l.c",
1035 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "ilogb.c",
1036 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "ilogbf.c",
1037 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "ilogbl.c",
1038 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "ldexpl.c",
1039 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "log1p.c",
1040 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "log1pf.c",
1041 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "log1pl.c",
1042 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "log2.c",
1043 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "logb.c",
1044 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "logbf.c",
1045 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "logbl.c",
1046 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "pow.c",
1047 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "powf.c",
1048 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "powl.c",
1049 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "remainder.c",
1050 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "remainderf.c",
1051 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "remainderl.c",
1052 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "remquol.c",
1053 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "s_remquo.c",
1054 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "s_remquof.c",
1055 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "scalbn.c",
1056};
1057
1058const mingwex_arm32_src = arm_common ++ [_][]const u8{
1022 "math" ++ path.sep_str ++ "arm" ++ path.sep_str ++ "_chgsignl.S",1059 "math" ++ path.sep_str ++ "arm" ++ path.sep_str ++ "_chgsignl.S",
1023 "math" ++ path.sep_str ++ "arm" ++ path.sep_str ++ "s_rint.c",1060 "math" ++ path.sep_str ++ "arm" ++ path.sep_str ++ "s_rint.c",
1024 "math" ++ path.sep_str ++ "arm" ++ path.sep_str ++ "s_rintf.c",1061 "math" ++ path.sep_str ++ "arm" ++ path.sep_str ++ "s_rintf.c",
...@@ -1033,11 +1070,8 @@ const mingwex_arm32_src = [_][]const u8{...@@ -1033,11 +1070,8 @@ const mingwex_arm32_src = [_][]const u8{
1033 "math" ++ path.sep_str ++ "arm" ++ path.sep_str ++ "s_truncf.c",1070 "math" ++ path.sep_str ++ "arm" ++ path.sep_str ++ "s_truncf.c",
1034};1071};
10351072
1036const mingwex_arm64_src = [_][]const u8{1073const mingwex_arm64_src = arm_common ++ [_][]const u8{
1037 "misc" ++ path.sep_str ++ "initenv.c",1074 "misc" ++ path.sep_str ++ "initenv.c",
1038 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "log2.c",
1039 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "pow.c",
1040 "math" ++ path.sep_str ++ "arm-common" ++ path.sep_str ++ "scalbn.c",
1041 "math" ++ path.sep_str ++ "arm64" ++ path.sep_str ++ "_chgsignl.S",1075 "math" ++ path.sep_str ++ "arm64" ++ path.sep_str ++ "_chgsignl.S",
1042 "math" ++ path.sep_str ++ "arm64" ++ path.sep_str ++ "rint.c",1076 "math" ++ path.sep_str ++ "arm64" ++ path.sep_str ++ "rint.c",
1043 "math" ++ path.sep_str ++ "arm64" ++ path.sep_str ++ "rintf.c",1077 "math" ++ path.sep_str ++ "arm64" ++ path.sep_str ++ "rintf.c",