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| author | Joseph Myers <joseph@codesourcery.com> | 2013-05-09 21:30:08 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2013-05-09 21:30:08 +0000 |
| commit | ed41ffefc3f947f14d565ea8d239ff2d31f6a7fe (patch) | |
| tree | 6a83a53b6d441694683731cf4c3568a37581e388 /sysdeps/ieee754 | |
| parent | d0213cd0b629cae95ed9607fcf26793a3a0d686c (diff) | |
| download | glibc-ed41ffefc3f947f14d565ea8d239ff2d31f6a7fe.tar.gz glibc-ed41ffefc3f947f14d565ea8d239ff2d31f6a7fe.tar.xz glibc-ed41ffefc3f947f14d565ea8d239ff2d31f6a7fe.zip | |
Fix ldbl-128ibm cos range reduction near pi/2 (bug 15359).
Diffstat (limited to 'sysdeps/ieee754')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c b/sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c index 692ae24930..6a72d6a853 100644 --- a/sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c +++ b/sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c @@ -185,13 +185,13 @@ static const int32_t two_over_pi[] = { }; static const long double c[] = { -/* 93 bits of pi/2 */ +/* 106 bits of pi/2 */ #define PI_2_1 c[0] - 1.57079632679489661923132169155131424e+00L, /* 3fff921fb54442d18469898cc5100000 */ + 0x1.921fb54442d18469898cc517018p+0L, /* pi/2 - PI_2_1 */ #define PI_2_1t c[1] - 8.84372056613570112025531863263659260e-29L, /* 3fa1c06e0e68948127044533e63a0106 */ + 0x3.839a252049c1114cf98e804178p-108L, }; int32_t __ieee754_rem_pio2l(long double x, long double *y) @@ -216,7 +216,7 @@ int32_t __ieee754_rem_pio2l(long double x, long double *y) { if (hx > 0) { - /* 113 + 93 bit PI is ok */ + /* 106 + 106 bit PI is ok */ z = x - PI_2_1; y[0] = z - PI_2_1t; y[1] = (z - y[0]) - PI_2_1t; @@ -224,7 +224,7 @@ int32_t __ieee754_rem_pio2l(long double x, long double *y) } else { - /* 113 + 93 bit PI is ok */ + /* 106 + 106 bit PI is ok */ z = x + PI_2_1; y[0] = z + PI_2_1t; y[1] = (z - y[0]) + PI_2_1t; |