* sysdeps/ieee754/ldbl-128ibm/k_cosl.c (__kernel_cosl): Correct index
for __sincosl_table. * sysdeps/ieee754/ldbl-128ibm/k_sincosl.c (__kernel_sincosl): Likewise. * sysdeps/ieee754/ldbl-128ibm/k_sinl.c (__kernel_sinl): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_ceill.c: Correct sign of 0.0. * sysdeps/ieee754/ldbl-128ibm/s_floorl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_cprojl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_ctanhl.c: New file. * sysdeps/ieee754/ldbl-128ibm/s_ctanl.c: New file.
This commit is contained in:
Roland McGrath
parent
27d7e3b54c
commit
16f0ecedb5
14
ChangeLog
14
ChangeLog
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@ -1,3 +1,17 @@
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2006-01-30 Steven Munroe <sjmunroe@us.ibm.com>
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* sysdeps/ieee754/ldbl-128ibm/k_cosl.c (__kernel_cosl): Correct index
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for __sincosl_table.
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* sysdeps/ieee754/ldbl-128ibm/k_sincosl.c (__kernel_sincosl): Likewise.
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* sysdeps/ieee754/ldbl-128ibm/k_sinl.c (__kernel_sinl): Likewise.
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* sysdeps/ieee754/ldbl-128ibm/s_ceill.c: Correct sign of 0.0.
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* sysdeps/ieee754/ldbl-128ibm/s_floorl.c: Likewise.
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* sysdeps/ieee754/ldbl-128ibm/s_cprojl.c: New file.
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* sysdeps/ieee754/ldbl-128ibm/s_ctanhl.c: New file.
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* sysdeps/ieee754/ldbl-128ibm/s_ctanl.c: New file.
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2006-01-29 Daniel Jacobowitz <dan@codesourcery.com>
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* sysdeps/unix/sysv/linux/mips/bits/errno.h (ECANCELED,
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@ -104,6 +104,24 @@ __kernel_cosl(long double x, long double y)
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pre-computed tables, compute cosl(l) and sinl(l) using a
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Chebyshev polynomial of degree 10(11) and compute
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cosl(h+l) = cosl(h)cosl(l) - sinl(h)sinl(l). */
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int six = tix;
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tix = ((six - 0x3ff00000) >> 4) + 0x3fff0000;
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index = 0x3ffe - (tix >> 16);
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hix = (tix + (0x200 << index)) & (0xfffffc00 << index);
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x = fabsl (x);
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switch (index)
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{
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case 0: index = ((45 << 10) + hix - 0x3ffe0000) >> 8; break;
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case 1: index = ((13 << 11) + hix - 0x3ffd0000) >> 9; break;
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default:
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case 2: index = (hix - 0x3ffc3000) >> 10; break;
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}
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hix = (hix << 4) & 0x3fffffff;
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/*
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The following should work for double but generates the wrong index.
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For now the code above converts double to ieee extended to compute
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the index back to double for the h value.
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index = 0x3fe - (tix >> 20);
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hix = (tix + (0x200 << index)) & (0xfffffc00 << index);
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x = fabsl (x);
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@ -114,7 +132,7 @@ __kernel_cosl(long double x, long double y)
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default:
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case 2: index = (hix - 0x3fc30000) >> 14; break;
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}
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*/
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SET_LDOUBLE_WORDS64(h, ((u_int64_t)hix) << 32, 0);
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l = y - (h - x);
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z = l * l;
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@ -131,6 +131,25 @@ __kernel_sincosl(long double x, long double y, long double *sinx, long double *c
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Chebyshev polynomial of degree 10(11) and compute
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sinl(h+l) = sinl(h)cosl(l) + cosl(h)sinl(l) and
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cosl(h+l) = cosl(h)cosl(l) - sinl(h)sinl(l). */
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int six = tix;
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tix = ((six - 0x3ff00000) >> 4) + 0x3fff0000;
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index = 0x3ffe - (tix >> 16);
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hix = (tix + (0x200 << index)) & (0xfffffc00 << index);
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x = fabsl (x);
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switch (index)
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{
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case 0: index = ((45 << 10) + hix - 0x3ffe0000) >> 8; break;
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case 1: index = ((13 << 11) + hix - 0x3ffd0000) >> 9; break;
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default:
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case 2: index = (hix - 0x3ffc3000) >> 10; break;
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}
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hix = (hix << 4) & 0x3fffffff;
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/*
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The following should work for double but generates the wrong index.
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For now the code above converts double to ieee extended to compute
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the index back to double for the h value.
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index = 0x3fe - (tix >> 20);
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hix = (tix + (0x2000 << index)) & (0xffffc000 << index);
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x = fabsl (x);
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@ -141,7 +160,7 @@ __kernel_sincosl(long double x, long double y, long double *sinx, long double *c
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default:
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case 2: index = (hix - 0x3fc30000) >> 14; break;
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}
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*/
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SET_LDOUBLE_WORDS64(h, ((u_int64_t)hix) << 32, 0);
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if (iy)
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l = y - (h - x);
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@ -104,6 +104,24 @@ __kernel_sinl(long double x, long double y, int iy)
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pre-computed tables, compute cosl(l) and sinl(l) using a
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Chebyshev polynomial of degree 10(11) and compute
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sinl(h+l) = sinl(h)cosl(l) + cosl(h)sinl(l). */
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int six = tix;
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tix = ((six - 0x3ff00000) >> 4) + 0x3fff0000;
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index = 0x3ffe - (tix >> 16);
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hix = (tix + (0x200 << index)) & (0xfffffc00 << index);
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x = fabsl (x);
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switch (index)
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{
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case 0: index = ((45 << 10) + hix - 0x3ffe0000) >> 8; break;
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case 1: index = ((13 << 11) + hix - 0x3ffd0000) >> 9; break;
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default:
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case 2: index = (hix - 0x3ffc3000) >> 10; break;
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}
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hix = (hix << 4) & 0x3fffffff;
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/*
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The following should work for double but generates the wrong index.
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For now the code above converts double to ieee extended to compute
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the index back to double for the h value.
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index = 0x3fe - (tix >> 20);
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hix = (tix + (0x2000 << index)) & (0xffffc000 << index);
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x = fabsl (x);
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@ -114,7 +132,7 @@ __kernel_sinl(long double x, long double y, int iy)
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default:
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case 2: index = (hix - 0x3fc30000) >> 14; break;
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}
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*/
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SET_LDOUBLE_WORDS64(h, ((u_int64_t)hix) << 32, 0);
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if (iy)
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l = y - (h - x);
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@ -18,9 +18,6 @@
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* This has been coded in assembler because GCC makes such a mess of it
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when it's coded in C. */
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#include <math.h>
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#include <fenv.h>
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#include <math_ldbl_opt.h>
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@ -44,19 +41,23 @@ __ceill (x)
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u.d = x;
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if (fabs (u.dd[0]) < TWO52)
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{
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{
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double high = u.dd[0];
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fesetround(FE_UPWARD);
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if (u.dd[0] > 0.0)
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if (high > 0.0)
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{
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u.dd[0] += TWO52;
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u.dd[0] -= TWO52;
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high += TWO52;
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high -= TWO52;
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if (high == -0.0) high = 0.0;
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}
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else if (u.dd[0] < 0.0)
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else if (high < 0.0)
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{
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u.dd[0] -= TWO52;
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u.dd[0] += TWO52;
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high -= TWO52;
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high += TWO52;
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if (high == 0.0) high = -0.0;
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}
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u.dd[1] = 0.0;
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u.dd[0] = high;
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u.dd[1] = 0.0;
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fesetround(mode);
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}
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else if (fabs (u.dd[1]) < TWO52 && u.dd[1] != 0.0)
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@ -82,10 +83,10 @@ __ceill (x)
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adjust for that. */
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high = nextafter (u.dd[0], 0.0);
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low = u.dd[1] + (u.dd[0] - high);
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}
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}
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fesetround(FE_UPWARD);
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low += TWO52;
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low -= TWO52;
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low -= TWO52;
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fesetround(mode);
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}
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else if (u.dd[0] < 0.0)
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@ -103,10 +104,10 @@ __ceill (x)
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adjust for that. */
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high = nextafter (u.dd[0], 0.0);
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low = u.dd[1] + (u.dd[0] - high);
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}
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}
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fesetround(FE_UPWARD);
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low -= TWO52;
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low += TWO52;
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low += TWO52;
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fesetround(mode);
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}
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u.dd[0] = high + low;
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@ -0,0 +1,54 @@
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/* Compute projection of complex long double value to Riemann sphere.
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Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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||||
License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
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||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <complex.h>
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#include <math.h>
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#include <math_ldbl_opt.h>
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__complex__ long double
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__cprojl (__complex__ long double x)
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{
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__complex__ long double res;
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if (isnan (__real__ x) && isnan (__imag__ x))
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return x;
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else if (!isfinite (__real__ x) || !isfinite (__imag__ x))
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{
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__real__ res = INFINITY;
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__imag__ res = __copysignl (0.0, __imag__ x);
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}
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else
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{
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long double den = (__real__ x * __real__ x + __imag__ x * __imag__ x
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+ 1.0);
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__real__ res = (2.0 * __real__ x) / den;
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__imag__ res = (2.0 * __imag__ x) / den;
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/* __gcc_qmul does not respect -0.0 so we need the following fixup. */
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if (__real__ x == 0.0)
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__real__ res = __real__ x;
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if (__imag__ x == 0.0)
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__imag__ res = __imag__ x;
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}
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return res;
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}
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long_double_symbol (libm, __cprojl, cprojl);
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@ -0,0 +1,87 @@
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/* Complex hyperbole tangent for long double. IBM extended format version.
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Copyright (C) 1997,2005,2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <complex.h>
|
||||
#include <fenv.h>
|
||||
#include <math.h>
|
||||
#include <math_ldbl_opt.h>
|
||||
|
||||
#include "math_private.h"
|
||||
|
||||
|
||||
__complex__ long double
|
||||
__ctanhl (__complex__ long double x)
|
||||
{
|
||||
__complex__ long double res;
|
||||
|
||||
if (!isfinite (__real__ x) || !isfinite (__imag__ x))
|
||||
{
|
||||
if (__isinfl (__real__ x))
|
||||
{
|
||||
__real__ res = __copysignl (1.0, __real__ x);
|
||||
__imag__ res = __copysignl (0.0, __imag__ x);
|
||||
}
|
||||
else if (__imag__ x == 0.0)
|
||||
{
|
||||
res = x;
|
||||
}
|
||||
else
|
||||
{
|
||||
__real__ res = __nanl ("");
|
||||
__imag__ res = __nanl ("");
|
||||
|
||||
#ifdef FE_INVALID
|
||||
if (__isinfl (__imag__ x))
|
||||
feraiseexcept (FE_INVALID);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
long double sin2ix, cos2ix;
|
||||
long double den;
|
||||
|
||||
__sincosl (2.0 * __imag__ x, &sin2ix, &cos2ix);
|
||||
|
||||
den = (__ieee754_coshl (2.0 * __real__ x) + cos2ix);
|
||||
|
||||
if (den == 0.0L)
|
||||
{
|
||||
__complex__ long double ez = __cexpl (x);
|
||||
__complex__ long double emz = __cexpl (-x);
|
||||
|
||||
res = (ez - emz) / (ez + emz);
|
||||
}
|
||||
else
|
||||
{
|
||||
__real__ res = __ieee754_sinhl (2.0 * __real__ x) / den;
|
||||
__imag__ res = sin2ix / den;
|
||||
}
|
||||
/* __gcc_qmul does not respect -0.0 so we need the following fixup. */
|
||||
if ((__real__ res == 0.0) && (__real__ x == 0.0))
|
||||
__real__ res = __real__ x;
|
||||
|
||||
if ((__real__ res == 0.0) && (__imag__ x == 0.0))
|
||||
__imag__ res = __imag__ x;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
long_double_symbol (libm, __ctanhl, ctanhl);
|
||||
|
|
@ -0,0 +1,88 @@
|
|||
/* Complex tangent function for long double. IBM extended format version.
|
||||
Copyright (C) 1997,2005,2006 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <complex.h>
|
||||
#include <fenv.h>
|
||||
#include <math.h>
|
||||
#include <math_ldbl_opt.h>
|
||||
|
||||
#include "math_private.h"
|
||||
|
||||
|
||||
__complex__ long double
|
||||
__ctanl (__complex__ long double x)
|
||||
{
|
||||
__complex__ long double res;
|
||||
|
||||
if (!isfinite (__real__ x) || !isfinite (__imag__ x))
|
||||
{
|
||||
if (__isinfl (__imag__ x))
|
||||
{
|
||||
__real__ res = __copysignl (0.0, __real__ x);
|
||||
__imag__ res = __copysignl (1.0, __imag__ x);
|
||||
}
|
||||
else if (__real__ x == 0.0)
|
||||
{
|
||||
res = x;
|
||||
}
|
||||
else
|
||||
{
|
||||
__real__ res = __nanl ("");
|
||||
__imag__ res = __nanl ("");
|
||||
|
||||
#ifdef FE_INVALID
|
||||
if (__isinfl (__real__ x))
|
||||
feraiseexcept (FE_INVALID);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
long double sin2rx, cos2rx;
|
||||
long double den;
|
||||
|
||||
__sincosl (2.0 * __real__ x, &sin2rx, &cos2rx);
|
||||
|
||||
den = cos2rx + __ieee754_coshl (2.0 * __imag__ x);
|
||||
|
||||
|
||||
if (den == 0.0)
|
||||
{
|
||||
__complex__ long double ez = __cexpl (1.0i * x);
|
||||
__complex__ long double emz = __cexpl (-1.0i * x);
|
||||
|
||||
res = (ez - emz) / (ez + emz) * -1.0i;
|
||||
}
|
||||
else
|
||||
{
|
||||
__real__ res = sin2rx / den;
|
||||
__imag__ res = __ieee754_sinhl (2.0 * __imag__ x) / den;
|
||||
}
|
||||
/* __gcc_qmul does not respect -0.0 so we need the following fixup. */
|
||||
if ((__real__ res == 0.0) && (__real__ x == 0.0))
|
||||
__real__ res = __real__ x;
|
||||
|
||||
if ((__real__ res == 0.0) && (__imag__ x == 0.0))
|
||||
__imag__ res = __imag__ x;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
long_double_symbol (libm, __ctanl, ctanl);
|
||||
|
|
@ -18,9 +18,6 @@
|
|||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
/* This has been coded in assembler because GCC makes such a mess of it
|
||||
when it's coded in C. */
|
||||
|
||||
#include <math.h>
|
||||
#include <fenv.h>
|
||||
#include <math_ldbl_opt.h>
|
||||
|
|
@ -44,18 +41,22 @@ __floorl (x)
|
|||
u.d = x;
|
||||
|
||||
if (fabs (u.dd[0]) < TWO52)
|
||||
{
|
||||
{
|
||||
double high = u.dd[0];
|
||||
fesetround(FE_DOWNWARD);
|
||||
if (u.dd[0] > 0.0)
|
||||
if (high > 0.0)
|
||||
{
|
||||
u.dd[0] += TWO52;
|
||||
u.dd[0] -= TWO52;
|
||||
high += TWO52;
|
||||
high -= TWO52;
|
||||
if (high == -0.0) high = 0.0;
|
||||
}
|
||||
else if (u.dd[0] < 0.0)
|
||||
else if (high < 0.0)
|
||||
{
|
||||
u.dd[0] -= TWO52;
|
||||
u.dd[0] += TWO52;
|
||||
high -= TWO52;
|
||||
high += TWO52;
|
||||
if (high == 0.0) high = -0.0;
|
||||
}
|
||||
u.dd[0] = high;
|
||||
u.dd[1] = 0.0;
|
||||
fesetround(mode);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue