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msvcrt: Use the sqrt() implementation from the bundled musl library.

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This commit is contained in:
Alexandre Julliard 2023-04-10 13:53:09 +02:00
parent 20c53e72c9
commit 75eb987768
13 changed files with 18 additions and 115 deletions
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2
dlls/crtdll/crtdll.spec
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@ -468,7 +468,7 @@
@ cdecl sin(double)
@ cdecl sinh(double)
@ varargs sprintf(ptr str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl srand(long)
@ varargs sscanf(str str)
@ cdecl strcat(str str)

2
dlls/msvcr100/msvcr100.spec
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@ -1790,7 +1790,7 @@
@ cdecl -arch=!i386 sinhf(float)
@ varargs sprintf(ptr str)
@ varargs sprintf_s(ptr long str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl -arch=!i386 sqrtf(float) MSVCRT_sqrtf
@ cdecl srand(long)
@ varargs sscanf(str str)

2
dlls/msvcr110/msvcr110.spec
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@ -2148,7 +2148,7 @@
@ cdecl -arch=!i386 sinhf(float)
@ varargs sprintf(ptr str)
@ varargs sprintf_s(ptr long str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl -arch=!i386 sqrtf(float) MSVCRT_sqrtf
@ cdecl srand(long)
@ varargs sscanf(str str)

2
dlls/msvcr120/msvcr120.spec
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@ -2359,7 +2359,7 @@
@ cdecl -arch=!i386 sinhf(float)
@ varargs sprintf(ptr str)
@ varargs sprintf_s(ptr long str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl -arch=!i386 sqrtf(float) MSVCRT_sqrtf
@ cdecl srand(long)
@ varargs sscanf(str str)

2
dlls/msvcr70/msvcr70.spec
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@ -816,7 +816,7 @@
@ cdecl sin(double)
@ cdecl sinh(double)
@ varargs sprintf(ptr str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl srand(long)
@ varargs sscanf(str str)
@ cdecl strcat(str str)

2
dlls/msvcr71/msvcr71.spec
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@ -811,7 +811,7 @@
@ cdecl sin(double)
@ cdecl sinh(double)
@ varargs sprintf(ptr str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl srand(long)
@ varargs sscanf(str str)
@ cdecl strcat(str str)

2
dlls/msvcr80/msvcr80.spec
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@ -1471,7 +1471,7 @@
@ cdecl -arch=!i386 sinhf(float)
@ varargs sprintf(ptr str)
@ varargs sprintf_s(ptr long str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl -arch=!i386 sqrtf(float) MSVCRT_sqrtf
@ cdecl srand(long)
@ varargs sscanf(str str)

2
dlls/msvcr90/msvcr90.spec
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@ -1443,7 +1443,7 @@
@ cdecl -arch=!i386 sinhf(float)
@ varargs sprintf(ptr str)
@ varargs sprintf_s(ptr long str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl -arch=!i386 sqrtf(float) MSVCRT_sqrtf
@ cdecl srand(long)
@ varargs sscanf(str str)

107
dlls/msvcrt/math.c
View File

@ -77,12 +77,14 @@ void msvcrt_init_math( void *module )
#endif
}
#if defined(__i386__) || defined(__x86_64__)
static inline double ret_nan( BOOL update_sw )
{
double x = 1.0;
if (!update_sw) return -NAN;
return (x - x) / (x - x);
}
#endif
#define SET_X87_CW(MASK) \
"subl $4, %esp\n\t" \
@ -408,6 +410,7 @@ double CDECL MSVCRT_exp( double x )
}
#endif
#if defined(__x86_64__) || defined(__i386__)
static BOOL sqrt_validate( double *x, BOOL update_sw )
{
short c = _dclass(*x);
@ -433,7 +436,6 @@ static BOOL sqrt_validate( double *x, BOOL update_sw )
return TRUE;
}
#if defined(__x86_64__) || defined(__i386__)
double CDECL sse2_sqrt(double);
__ASM_GLOBAL_FUNC( sse2_sqrt,
"sqrtsd %xmm0, %xmm0\n\t"
@ -452,10 +454,8 @@ __ASM_GLOBAL_FUNC( x87_sqrt,
/*********************************************************************
* sqrt (MSVCRT.@)
*
* Copied from musl: src/math/sqrt.c
*/
double CDECL sqrt( double x )
double CDECL MSVCRT_sqrt( double x )
{
#ifdef __x86_64__
if (!sqrt_validate(&x, TRUE))
@ -468,104 +468,7 @@ double CDECL sqrt( double x )
return x87_sqrt(x);
#else
static const double tiny = 1.0e-300;
double z;
int sign = 0x80000000;
int ix0,s0,q,m,t,i;
unsigned int r,t1,s1,ix1,q1;
ULONGLONG ix;
if (!sqrt_validate(&x, TRUE))
return x;
ix = *(ULONGLONG*)&x;
ix0 = ix >> 32;
ix1 = ix;
/* normalize x */
m = ix0 >> 20;
if (m == 0) { /* subnormal x */
while (ix0 == 0) {
m -= 21;
ix0 |= (ix1 >> 11);
ix1 <<= 21;
}
for (i=0; (ix0 & 0x00100000) == 0; i++)
ix0 <<= 1;
m -= i - 1;
ix0 |= ix1 >> (32 - i);
ix1 <<= i;
}
m -= 1023; /* unbias exponent */
ix0 = (ix0 & 0x000fffff) | 0x00100000;
if (m & 1) { /* odd m, double x to make it even */
ix0 += ix0 + ((ix1 & sign) >> 31);
ix1 += ix1;
}
m >>= 1; /* m = [m/2] */
/* generate sqrt(x) bit by bit */
ix0 += ix0 + ((ix1 & sign) >> 31);
ix1 += ix1;
q = q1 = s0 = s1 = 0; /* [q,q1] = sqrt(x) */
r = 0x00200000; /* r = moving bit from right to left */
while (r != 0) {
t = s0 + r;
if (t <= ix0) {
s0 = t + r;
ix0 -= t;
q += r;
}
ix0 += ix0 + ((ix1 & sign) >> 31);
ix1 += ix1;
r >>= 1;
}
r = sign;
while (r != 0) {
t1 = s1 + r;
t = s0;
if (t < ix0 || (t == ix0 && t1 <= ix1)) {
s1 = t1 + r;
if ((t1&sign) == sign && (s1 & sign) == 0)
s0++;
ix0 -= t;
if (ix1 < t1)
ix0--;
ix1 -= t1;
q1 += r;
}
ix0 += ix0 + ((ix1 & sign) >> 31);
ix1 += ix1;
r >>= 1;
}
/* use floating add to find out rounding direction */
if ((ix0 | ix1) != 0) {
z = 1.0 - tiny; /* raise inexact flag */
if (z >= 1.0) {
z = 1.0 + tiny;
if (q1 == (unsigned int)0xffffffff) {
q1 = 0;
q++;
} else if (z > 1.0) {
if (q1 == (unsigned int)0xfffffffe)
q++;
q1 += 2;
} else
q1 += q1 & 1;
}
}
ix0 = (q >> 1) + 0x3fe00000;
ix1 = q1 >> 1;
if (q & 1)
ix1 |= sign;
ix = ix0 + ((unsigned int)m << 20);
ix <<= 32;
ix |= ix1;
return *(double*)&ix;
return sqrt( x );
#endif
}

2
dlls/msvcrt/msvcrt.spec
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@ -1422,7 +1422,7 @@
@ cdecl -arch=!i386 sinhf(float)
@ varargs sprintf(ptr str)
@ varargs sprintf_s(ptr long str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl -arch=!i386 sqrtf(float) MSVCRT_sqrtf
@ cdecl srand(long)
@ varargs sscanf(str str)

2
dlls/msvcrtd/msvcrtd.spec
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@ -769,7 +769,7 @@
@ cdecl sin(double)
@ cdecl sinh(double)
@ varargs sprintf(ptr str)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl srand(long)
@ varargs sscanf(str str)
@ cdecl strcat(str str)

4
dlls/ucrtbase/ucrtbase.spec
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@ -1778,7 +1778,7 @@
@ cdecl -arch=!i386 _o_sinf(float) sinf
@ cdecl _o_sinh(double) sinh
@ cdecl -arch=!i386 _o_sinhf(float) sinhf
@ cdecl _o_sqrt(double) sqrt
@ cdecl _o_sqrt(double) MSVCRT_sqrt
@ cdecl -arch=!i386 _o_sqrtf(float) MSVCRT_sqrtf
@ cdecl _o_srand(long) srand
@ cdecl _o_strcat_s(str long str) strcat_s
@ -2494,7 +2494,7 @@
@ cdecl -arch=!i386 sinf(float)
@ cdecl sinh(double)
@ cdecl -arch=!i386 sinhf(float)
@ cdecl sqrt(double)
@ cdecl sqrt(double) MSVCRT_sqrt
@ cdecl -arch=!i386 sqrtf(float) MSVCRT_sqrtf
@ cdecl srand(long)
@ cdecl strcat(str str)

2
libs/musl/src/math/sqrt.c
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@ -35,7 +35,7 @@ double __cdecl sqrt(double x)
if (ix == 0x7ff0000000000000)
return x;
if (ix > 0x7ff0000000000000)
return __math_invalid(x);
return math_error(_DOMAIN, "sqrt", x, 0, (x - x) / (x - x));
/* x is subnormal, normalize it. */
ix = asuint64(x * 0x1p52);
top = ix >> 52;