diff options
| author | Stefan Liebler <stli@linux.ibm.com> | 2019-12-11 15:09:14 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2019-12-11 15:12:12 +0100 |
| commit | ab48bdd098a675dddb360faafc497a61c4bd4334 (patch) | |
| tree | 4bcc08b408c56b3077b4e2f31a879a7f7aa33e6f /sysdeps/ieee754/dbl-64/s_rint.c | |
| parent | af123aa95091d3d2d1b4ff027cf806ca1721d29d (diff) | |
| download | glibc-ab48bdd098a675dddb360faafc497a61c4bd4334.tar.gz glibc-ab48bdd098a675dddb360faafc497a61c4bd4334.tar.xz glibc-ab48bdd098a675dddb360faafc497a61c4bd4334.zip | |
Always use wordsize-64 version of s_rint.c.
This patch replaces s_rint.c in sysdeps/dbl-64 with the one in sysdeps/dbl-64/wordsize-64 and removes the latter one. The code is not changed except changes in code style. Also adjusted the include path in x86_64 file. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_rint.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_rint.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_rint.c b/sysdeps/ieee754/dbl-64/s_rint.c index dd01a84176..66c9196473 100644 --- a/sysdeps/ieee754/dbl-64/s_rint.c +++ b/sysdeps/ieee754/dbl-64/s_rint.c @@ -1,4 +1,3 @@ -/* @(#)s_rint.c 5.1 93/09/24 */ /* * ==================================================== * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. @@ -26,38 +25,39 @@ #include <libm-alias-double.h> static const double - TWO52[2] = { - 4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */ - -4.50359962737049600000e+15, /* 0xC3300000, 0x00000000 */ +TWO52[2] = { + 4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */ + -4.50359962737049600000e+15, /* 0xC3300000, 0x00000000 */ }; double __rint (double x) { - int32_t i0, j0, sx; - double w, t; - GET_HIGH_WORD (i0, x); - sx = (i0 >> 31) & 1; - j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; + int64_t i0, sx; + int32_t j0; + EXTRACT_WORDS64 (i0, x); + sx = (i0 >> 63) & 1; + j0 = ((i0 >> 52) & 0x7ff) - 0x3ff; if (j0 < 52) { if (j0 < 0) { - w = TWO52[sx] + x; - t = w - TWO52[sx]; - GET_HIGH_WORD (i0, t); - SET_HIGH_WORD (t, (i0 & 0x7fffffff) | (sx << 31)); + 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 { if (j0 == 0x400) - return x + x; /* inf or NaN */ + return x + x; /* inf or NaN */ else - return x; /* x is integral */ + return x; /* x is integral */ } - w = TWO52[sx] + x; + double w = TWO52[sx] + x; return w - TWO52[sx]; } #ifndef __rint |