diff options
Diffstat (limited to 'glibc-2.19-fix-sign-in-bsloww1-input.patch')
| -rw-r--r-- | glibc-2.19-fix-sign-in-bsloww1-input.patch | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/glibc-2.19-fix-sign-in-bsloww1-input.patch b/glibc-2.19-fix-sign-in-bsloww1-input.patch new file mode 100644 index 000000000000..91b0c9abbe41 --- /dev/null +++ b/glibc-2.19-fix-sign-in-bsloww1-input.patch @@ -0,0 +1,71 @@ +From ffe768a90912f9bce43b70a82576b3dc99e3121c Mon Sep 17 00:00:00 2001 +From: Siddhesh Poyarekar <siddhesh@redhat.com> +Date: Thu, 27 Feb 2014 21:29:16 +0530 +Subject: [PATCH] Fix sign of input to bsloww1 (BZ #16623) + +In 84ba214c, I removed some redundant sign computations and in the +process, I incorrectly got rid of a temporary variable, thus passing +the absolute value of the input to bsloww1. This caused #16623. + +This fix undoes the incorrect change. +--- + sysdeps/ieee754/dbl-64/s_sin.c | 16 ++++++++++------ + 3 files changed, 18 insertions(+), 7 deletions(-) + +diff --git a/sysdeps/ieee754/dbl-64/s_sin.c b/sysdeps/ieee754/dbl-64/s_sin.c +index 6105e9f..50109b8 100644 +--- a/sysdeps/ieee754/dbl-64/s_sin.c ++++ b/sysdeps/ieee754/dbl-64/s_sin.c +@@ -447,19 +447,21 @@ __sin (double x) + } + else + { ++ double t; + if (a > 0) + { + m = 1; ++ t = a; + db = da; + } + else + { + m = 0; +- a = -a; ++ t = -a; + db = -da; + } +- u.x = big + a; +- y = a - (u.x - big); ++ u.x = big + t; ++ y = t - (u.x - big); + res = do_sin (u, y, db, &cor); + cor = (cor > 0) ? 1.035 * cor + eps : 1.035 * cor - eps; + retval = ((res == res + cor) ? ((m) ? res : -res) +@@ -671,19 +673,21 @@ __cos (double x) + } + else + { ++ double t; + if (a > 0) + { + m = 1; ++ t = a; + db = da; + } + else + { + m = 0; +- a = -a; ++ t = -a; + db = -da; + } +- u.x = big + a; +- y = a - (u.x - big); ++ u.x = big + t; ++ y = t - (u.x - big); + res = do_sin (u, y, db, &cor); + cor = (cor > 0) ? 1.035 * cor + eps : 1.035 * cor - eps; + retval = ((res == res + cor) ? ((m) ? res : -res) +-- +1.9.0 + |