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| author | Ulrich Drepper <drepper@redhat.com> | 2001-02-13 01:23:48 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2001-02-13 01:23:48 +0000 |
| commit | 5d2a88a70e3a40d93e7c6c821b9f22746b3a11a3 (patch) | |
| tree | aad692051ec8635ec14fcebf8aa714f637f3b569 /sysdeps/ieee754/flt-32 | |
| parent | 8de5da94ce5a2f01369ecc9dbe63684e6245dbdd (diff) | |
| download | glibc-5d2a88a70e3a40d93e7c6c821b9f22746b3a11a3.zip glibc-5d2a88a70e3a40d93e7c6c821b9f22746b3a11a3.tar.gz glibc-5d2a88a70e3a40d93e7c6c821b9f22746b3a11a3.tar.bz2 | |
Little optimization, use sincos.
Diffstat (limited to 'sysdeps/ieee754/flt-32')
| -rw-r--r-- | sysdeps/ieee754/flt-32/e_j0f.c | 3 | ||||
| -rw-r--r-- | sysdeps/ieee754/flt-32/e_j1f.c | 6 |
2 files changed, 3 insertions, 6 deletions
diff --git a/sysdeps/ieee754/flt-32/e_j0f.c b/sysdeps/ieee754/flt-32/e_j0f.c index cbad70b..b3b2052 100644 --- a/sysdeps/ieee754/flt-32/e_j0f.c +++ b/sysdeps/ieee754/flt-32/e_j0f.c @@ -147,8 +147,7 @@ v04 = 4.4111031494e-10; /* 0x2ff280c2 */ * sin(x) +- cos(x) = -cos(2x)/(sin(x) -+ cos(x)) * to compute the worse one. */ - s = __sinf(x); - c = __cosf(x); + __sincosf (x, &s, &c); ss = s-c; cc = s+c; /* diff --git a/sysdeps/ieee754/flt-32/e_j1f.c b/sysdeps/ieee754/flt-32/e_j1f.c index a227bc0..26f606a 100644 --- a/sysdeps/ieee754/flt-32/e_j1f.c +++ b/sysdeps/ieee754/flt-32/e_j1f.c @@ -67,8 +67,7 @@ static float zero = 0.0; if(ix>=0x7f800000) return one/x; y = fabsf(x); if(ix >= 0x40000000) { /* |x| >= 2.0 */ - s = __sinf(y); - c = __cosf(y); + __sincosf (y, &s, &c); ss = -s-c; cc = s-c; if(ix<0x7f000000) { /* make sure y+y not overflow */ @@ -138,8 +137,7 @@ static float V0[5] = { if(ix==0) return -one/zero; if(hx<0) return zero/zero; if(ix >= 0x40000000) { /* |x| >= 2.0 */ - s = __sinf(x); - c = __cosf(x); + __sincosf (x, &s, &c); ss = -s-c; cc = s-c; if(ix<0x7f000000) { /* make sure x+x not overflow */ |