From: Martin Kronbichler <kronbichler@lnm.mw.tum.de>
Date: Tue, 29 Dec 2015 20:12:40 +0000 (+0100)
Subject: Vectorize one loop
X-Git-Tag: v8.4.0-rc2~120^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb44c14568090f67bf9cce5bdc2a3d89e38c9539;p=dealii.git

Vectorize one loop
---

diff --git a/include/deal.II/lac/vector.templates.h b/include/deal.II/lac/vector.templates.h
index d5a384ec47..478f64f534 100644
--- a/include/deal.II/lac/vector.templates.h
+++ b/include/deal.II/lac/vector.templates.h
@@ -795,11 +795,9 @@ namespace internal
                         const dealii::Vector<T> &src,
                         dealii::Vector<U>       &dst)
     {
-      const T *q = src.begin()+begin;
-      const T *const end_q = src.begin()+end;
-      U *p = dst.begin()+begin;
-      for (; q!=end_q; ++q, ++p)
-        *p = *q;
+      DEAL_II_OPENMP_SIMD_PRAGMA
+      for (unsigned int i=begin; i<end; ++i)
+        dst.begin()[i] = src.begin()[i];
     }