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| author | Joseph Myers <joseph@codesourcery.com> | 2012-03-13 14:12:44 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2012-03-13 14:12:44 +0000 |
| commit | f453b98b6bf698ddb4d49cd3dc0f94d2da2a8968 (patch) | |
| tree | b14dc65111884a7d94642b63741aa015cd41463d /sysdeps/ieee754/dbl-64/wordsize-64 | |
| parent | 8e59da90ce7ef7b4226b9516116353cfceb5bb1c (diff) | |
| download | glibc-f453b98b6bf698ddb4d49cd3dc0f94d2da2a8968.tar glibc-f453b98b6bf698ddb4d49cd3dc0f94d2da2a8968.tar.gz glibc-f453b98b6bf698ddb4d49cd3dc0f94d2da2a8968.tar.bz2 glibc-f453b98b6bf698ddb4d49cd3dc0f94d2da2a8968.zip | |
Clean up dbl-64 rint, nearbyint.
Diffstat (limited to 'sysdeps/ieee754/dbl-64/wordsize-64')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/wordsize-64/s_nearbyint.c | 12 | ||||
| -rw-r--r-- | sysdeps/ieee754/dbl-64/wordsize-64/s_rint.c | 12 |
2 files changed, 0 insertions, 24 deletions
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_nearbyint.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_nearbyint.c index a3809984e2..a58a6202ef 100644 --- a/sysdeps/ieee754/dbl-64/wordsize-64/s_nearbyint.c +++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_nearbyint.c @@ -41,29 +41,17 @@ __nearbyint(double x) j0 = ((i0>>52)&0x7ff)-0x3ff; if(__builtin_expect(j0<52, 1)) { if(j0<0) { - if((i0&UINT64_C(0x7fffffffffffffff))==0) return x; - uint64_t i = i0 & UINT64_C(0xfffffffffffff); - i0 &= UINT64_C(0xfffe000000000000); - i0 |= (((i|-i) >> 12) & UINT64_C(0x8000000000000)); - INSERT_WORDS64(x,i0); libc_feholdexcept (&env); double w = TWO52[sx]+x; double t = w-TWO52[sx]; math_opt_barrier(t); libc_fesetenv (&env); return copysign(t, x); - } else { - uint64_t i = UINT64_C(0x000fffffffffffff)>>j0; - if((i0&i)==0) return x; /* x is integral */ - i>>=1; - if((i0&i)!=0) - i0 = (i0&(~i))|(UINT64_C(0x4000000000000)>>j0); } } else { if(j0==0x400) return x+x; /* inf or NaN */ else return x; /* x is integral */ } - INSERT_WORDS64(x,i0); libc_feholdexcept (&env); double w = TWO52[sx]+x; double t = w-TWO52[sx]; diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_rint.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_rint.c index 20eef3c5ea..87b2339d43 100644 --- a/sysdeps/ieee754/dbl-64/wordsize-64/s_rint.c +++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_rint.c @@ -38,28 +38,16 @@ __rint(double x) j0 = ((i0>>52)&0x7ff)-0x3ff; if(j0<52) { if(j0<0) { - if((i0 & UINT64_C(0x7fffffffffffffff))==0) return x; - uint64_t i = i0 & UINT64_C(0xfffffffffffff); - i0 &= UINT64_C(0xfffe000000000000); - i0 |= (((i|-i) >> 12) & UINT64_C(0x8000000000000)); - INSERT_WORDS64(x,i0); double w = TWO52[sx]+x; double t = w-TWO52[sx]; EXTRACT_WORDS64(i0,t); INSERT_WORDS64(t,(i0&UINT64_C(0x7fffffffffffffff))|(sx<<63)); return t; - } else { - uint64_t i = UINT64_C(0x000fffffffffffff)>>j0; - if((i0&i)==0) return x; /* x is integral */ - i>>=1; - if((i0&i)!=0) - i0 = (i0&(~i))|(UINT64_C(0x4000000000000)>>j0); } } else { if(j0==0x400) return x+x; /* inf or NaN */ else return x; /* x is integral */ } - INSERT_WORDS64(x,i0); double w = TWO52[sx]+x; return w-TWO52[sx]; } |