First commit - moving from LuaForge to SourceForge

1 files changed, 141 insertions, 0 deletions

diff --git a/src/fftw/ftwi_4.c b/src/fftw/ftwi_4.c
new file mode 100644
index 0000000..ee5eedb
--- /dev/null
+++ b/src/fftw/ftwi_4.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 1997-1999, 2003 Massachusetts Institute of Technology
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+/* This file was automatically generated --- DO NOT EDIT */
+/* Generated on Mon Mar 24 02:08:25 EST 2003 */
+
+#include "fftw-int.h"
+#include "fftw.h"
+
+/* Generated by: /homee/stevenj/cvs/fftw/gensrc/genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -twiddleinv 4 */
+
+/*
+ * This function contains 22 FP additions, 12 FP multiplications,
+ * (or, 16 additions, 6 multiplications, 6 fused multiply/add),
+ * 14 stack variables, and 16 memory accesses
+ */
+
+/*
+ * Generator Id's : 
+ * $Id: ftwi_4.c,v 1.1 2008/10/17 06:13:18 scuri Exp $
+ * $Id: ftwi_4.c,v 1.1 2008/10/17 06:13:18 scuri Exp $
+ * $Id: ftwi_4.c,v 1.1 2008/10/17 06:13:18 scuri Exp $
+ */
+
+void fftwi_twiddle_4(fftw_complex *A, const fftw_complex *W, int iostride,
+		     int m, int dist)
+{
+     int i;
+     fftw_complex *inout;
+     inout = A;
+     for (i = m; i > 0; i = i - 1, inout = inout + dist, W = W + 3) {
+	  fftw_real tmp1;
+	  fftw_real tmp25;
+	  fftw_real tmp6;
+	  fftw_real tmp24;
+	  fftw_real tmp12;
+	  fftw_real tmp20;
+	  fftw_real tmp17;
+	  fftw_real tmp21;
+	  ASSERT_ALIGNED_DOUBLE;
+	  tmp1 = c_re(inout[0]);
+	  tmp25 = c_im(inout[0]);
+	  {
+	       fftw_real tmp3;
+	       fftw_real tmp5;
+	       fftw_real tmp2;
+	       fftw_real tmp4;
+	       ASSERT_ALIGNED_DOUBLE;
+	       tmp3 = c_re(inout[2 * iostride]);
+	       tmp5 = c_im(inout[2 * iostride]);
+	       tmp2 = c_re(W[1]);
+	       tmp4 = c_im(W[1]);
+	       tmp6 = (tmp2 * tmp3) + (tmp4 * tmp5);
+	       tmp24 = (tmp2 * tmp5) - (tmp4 * tmp3);
+	  }
+	  {
+	       fftw_real tmp9;
+	       fftw_real tmp11;
+	       fftw_real tmp8;
+	       fftw_real tmp10;
+	       ASSERT_ALIGNED_DOUBLE;
+	       tmp9 = c_re(inout[iostride]);
+	       tmp11 = c_im(inout[iostride]);
+	       tmp8 = c_re(W[0]);
+	       tmp10 = c_im(W[0]);
+	       tmp12 = (tmp8 * tmp9) + (tmp10 * tmp11);
+	       tmp20 = (tmp8 * tmp11) - (tmp10 * tmp9);
+	  }
+	  {
+	       fftw_real tmp14;
+	       fftw_real tmp16;
+	       fftw_real tmp13;
+	       fftw_real tmp15;
+	       ASSERT_ALIGNED_DOUBLE;
+	       tmp14 = c_re(inout[3 * iostride]);
+	       tmp16 = c_im(inout[3 * iostride]);
+	       tmp13 = c_re(W[2]);
+	       tmp15 = c_im(W[2]);
+	       tmp17 = (tmp13 * tmp14) + (tmp15 * tmp16);
+	       tmp21 = (tmp13 * tmp16) - (tmp15 * tmp14);
+	  }
+	  {
+	       fftw_real tmp7;
+	       fftw_real tmp18;
+	       fftw_real tmp27;
+	       fftw_real tmp28;
+	       ASSERT_ALIGNED_DOUBLE;
+	       tmp7 = tmp1 + tmp6;
+	       tmp18 = tmp12 + tmp17;
+	       c_re(inout[2 * iostride]) = tmp7 - tmp18;
+	       c_re(inout[0]) = tmp7 + tmp18;
+	       tmp27 = tmp12 - tmp17;
+	       tmp28 = tmp25 - tmp24;
+	       c_im(inout[iostride]) = tmp27 + tmp28;
+	       c_im(inout[3 * iostride]) = tmp28 - tmp27;
+	  }
+	  {
+	       fftw_real tmp23;
+	       fftw_real tmp26;
+	       fftw_real tmp19;
+	       fftw_real tmp22;
+	       ASSERT_ALIGNED_DOUBLE;
+	       tmp23 = tmp20 + tmp21;
+	       tmp26 = tmp24 + tmp25;
+	       c_im(inout[0]) = tmp23 + tmp26;
+	       c_im(inout[2 * iostride]) = tmp26 - tmp23;
+	       tmp19 = tmp1 - tmp6;
+	       tmp22 = tmp20 - tmp21;
+	       c_re(inout[iostride]) = tmp19 - tmp22;
+	       c_re(inout[3 * iostride]) = tmp19 + tmp22;
+	  }
+     }
+}
+
+static const int twiddle_order[] = { 1, 2, 3 };
+fftw_codelet_desc fftwi_twiddle_4_desc = {
+     "fftwi_twiddle_4",
+     (void (*)()) fftwi_twiddle_4,
+     4,
+     FFTW_BACKWARD,
+     FFTW_TWIDDLE,
+     99,
+     3,
+     twiddle_order,
+};