diff options
| author | Siddhesh Poyarekar <siddhesh@redhat.com> | 2013-02-16 00:15:57 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2013-02-16 00:15:57 +0530 |
| commit | 22af19f9fb1909690dbe9840c0de093b656b4a68 (patch) | |
| tree | a21f036eb56c8c5ca7ee00a6bc3f66d565e375ba | |
| parent | 4709fe7602b56e9f6ee1ab6afb4067409a784f29 (diff) | |
| download | glibc-22af19f9fb1909690dbe9840c0de093b656b4a68.tar.gz glibc-22af19f9fb1909690dbe9840c0de093b656b4a68.tar.xz glibc-22af19f9fb1909690dbe9840c0de093b656b4a68.zip | |
Don't require LIM to determine loop end in __sqr
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | sysdeps/ieee754/dbl-64/mpa.c | 14 |
2 files changed, 7 insertions, 10 deletions
diff --git a/ChangeLog b/ChangeLog index 607433b82f..cfddab03bf 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 9da4257263..1f60fa5a6d 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; |