gcc/testsuite/gcc.dg/vect/pr42604.c

   1 /* PR debug/42604 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O3 -ftree-vectorize -g -ffast-math" } */
   4
   5 unsigned *d;
   6 unsigned short e;
   7 int f;
   8 float h[3][4];
   9
  10 void
  11 test (unsigned short *b)
  12 {
  13   int a, c, i;
  14   float g[3];
  15   unsigned j[32] = { 10, 0x63707274 };
  16   for (i = 0; i < (int) j[0]; i++)
  17     {
  18       j[i * 3 + 2] = d[0];
  19       d[0] += (j[i * 3 + 3] + 3) & -4;
  20     }
  21   for (a = 0; a < e; a++)
  22     {
  23       g[0] = g[1] = g[2] = 0;
  24       for (c = 0; c < f; c++)
  25         {
  26           g[0] += h[0][c] * b[c];
  27           g[1] += h[1][c] * b[c];
  28         }
  29       for (c = 0; c < 3; c++)
  30         b[c] = 0 > ((int) g[c] < 65535 ? ((int) g[c]) : 65535)
  31           ? 0 : ((int) g[c]) < 65535 ? (int) g[c] : 65535;
  32     }
  33 }
  34
  35 /* { dg-final { cleanup-tree-dump "vect" } } */