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GNU C Library master sources branch master updated. glibc-2.17-236-g22af19f
- From: siddhesh at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 15 Feb 2013 18:48:48 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.17-236-g22af19f
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http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=22af19f9fb1909690dbe9840c0de093b656b4a68
commit 22af19f9fb1909690dbe9840c0de093b656b4a68
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date: Sat Feb 16 00:15:57 2013 +0530
Don't require LIM to determine loop end in __sqr
diff --git a/ChangeLog b/ChangeLog
index 607433b..cfddab0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
2013-02-16 Siddhesh Poyarekar <siddhesh@redhat.com>
+ * sysdeps/ieee754/dbl-64/mpa.c (__sqr): Avoid using LIM in
+ loop termination condition.
+
* sysdeps/ieee754/dbl-64/mpa.c (__mul): Use intermediate
variable to calculate EZ.
(__sqr): Likewise.
diff --git a/sysdeps/ieee754/dbl-64/mpa.c b/sysdeps/ieee754/dbl-64/mpa.c
index 9da4257..1f60fa5 100644
--- a/sysdeps/ieee754/dbl-64/mpa.c
+++ b/sysdeps/ieee754/dbl-64/mpa.c
@@ -747,12 +747,9 @@ __sqr (const mp_no *x, mp_no *y, int p)
long lim = k / 2;
if (k % 2 == 0)
- {
- yk += X[lim] * X[lim];
- lim--;
- }
+ yk += X[lim] * X[lim];
- for (i = k - p, j = p; i <= lim; i++, j--)
+ for (i = k - p, j = p; i < j; i++, j--)
yk2 += X[i] * X[j];
yk += 2.0 * yk2;
@@ -770,12 +767,9 @@ __sqr (const mp_no *x, mp_no *y, int p)
long lim = k / 2;
if (k % 2 == 0)
- {
- yk += X[lim] * X[lim];
- lim--;
- }
+ yk += X[lim] * X[lim];
- for (i = 1, j = k - 1; i <= lim; i++, j--)
+ for (i = 1, j = k - 1; i < j; i++, j--)
yk2 += X[i] * X[j];
yk += 2.0 * yk2;
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 3 +++
sysdeps/ieee754/dbl-64/mpa.c | 14 ++++----------
2 files changed, 7 insertions(+), 10 deletions(-)
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