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72 lines
1.7 KiB
Diff
72 lines
1.7 KiB
Diff
From ffe768a90912f9bce43b70a82576b3dc99e3121c Mon Sep 17 00:00:00 2001
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From: Siddhesh Poyarekar <siddhesh@redhat.com>
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Date: Thu, 27 Feb 2014 21:29:16 +0530
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Subject: [PATCH] Fix sign of input to bsloww1 (BZ #16623)
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In 84ba214c, I removed some redundant sign computations and in the
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process, I incorrectly got rid of a temporary variable, thus passing
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the absolute value of the input to bsloww1. This caused #16623.
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This fix undoes the incorrect change.
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---
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sysdeps/ieee754/dbl-64/s_sin.c | 16 ++++++++++------
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3 files changed, 18 insertions(+), 7 deletions(-)
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diff --git a/sysdeps/ieee754/dbl-64/s_sin.c b/sysdeps/ieee754/dbl-64/s_sin.c
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index 6105e9f..50109b8 100644
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--- a/sysdeps/ieee754/dbl-64/s_sin.c
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+++ b/sysdeps/ieee754/dbl-64/s_sin.c
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@@ -447,19 +447,21 @@ __sin (double x)
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}
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else
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{
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+ double t;
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if (a > 0)
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{
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m = 1;
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+ t = a;
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db = da;
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}
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else
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{
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m = 0;
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- a = -a;
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+ t = -a;
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db = -da;
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}
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- u.x = big + a;
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- y = a - (u.x - big);
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+ u.x = big + t;
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+ y = t - (u.x - big);
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res = do_sin (u, y, db, &cor);
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cor = (cor > 0) ? 1.035 * cor + eps : 1.035 * cor - eps;
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retval = ((res == res + cor) ? ((m) ? res : -res)
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@@ -671,19 +673,21 @@ __cos (double x)
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}
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else
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{
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+ double t;
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if (a > 0)
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{
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m = 1;
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+ t = a;
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db = da;
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}
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else
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{
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m = 0;
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- a = -a;
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+ t = -a;
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db = -da;
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}
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- u.x = big + a;
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- y = a - (u.x - big);
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+ u.x = big + t;
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+ y = t - (u.x - big);
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res = do_sin (u, y, db, &cor);
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cor = (cor > 0) ? 1.035 * cor + eps : 1.035 * cor - eps;
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retval = ((res == res + cor) ? ((m) ? res : -res)
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--
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1.9.0
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