gcc/testsuite/gcc.target/i386/pr52252-atom.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target ssse3 } */
   3 /* { dg-options "-O2 -ftree-vectorize -mssse3 -mtune=slm" } */
   4 #define byte unsigned char
   5
   6 void
   7 matrix_mul (byte *in, byte *out, int size)
   8 {
   9   int i;
  10   for (i = 0; i < size; i++)
  11     {
  12       byte in0 = in[0];
  13       byte in1 = in[1];
  14       byte in2 = in[2];
  15       byte out0, out1, out2, out3;
  16       out0 = in0 + in1;
  17       out1 = in0 + in2;
  18       out2 = in1 + in2;
  19       out3 = in0 + in1 + in2;
  20       out[0] = out0;
  21       out[1] = out1;
  22       out[2] = out2;
  23       out[3] = out3;
  24       in += 3;
  25       out += 4;
  26     }
  27 }
  28
  29 /* { dg-final { scan-assembler "palignr" } } */