gcc/testsuite/gcc.target/i386/pr63448.c

   1 /* PR rtl-optimization/63448 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O -std=c99" } */
   4
   5 int a, d, e, g, h, j;
   6 float b, c, k, l, m, n;
   7 int *__restrict i;
   8 void
   9 foo (void)
  10 {
  11   int o = e;
  12   int *p;
  13   float *q, *r = (float *) 0x1234000;
  14   float s, t, u, v, w, x;
  15   do
  16     {
  17       for (a = o; a; a--)
  18         {
  19           s += m;
  20           t += n;
  21           u += m;
  22           v += n;
  23           w += d;
  24           x += d;
  25           n = l;
  26           s += r[1];
  27           t += n;
  28           v += r[1];
  29           m = k * r[4];
  30           n = q[0] * r[4];
  31           s += m;
  32           m = q[1] * r[4];
  33           t += n;
  34           q += g;
  35           k = *q;
  36           n = q[1] * r[4];
  37           s += m;
  38           t += n;
  39           u += r[4];
  40           m = q[8] * r[4];
  41           q += 1;
  42           n = q[1] * r[4];
  43           s += m;
  44           m = q[4];
  45           t += n;
  46           q += g;
  47           w += m;
  48           m = k * r[4];
  49           s += m;
  50           t += q[0];
  51           m = q[1] * r[4];
  52           v += q[0];
  53           n = q[10] * r[4];
  54           s += m;
  55           t += n;
  56           u += b;
  57           m = q[8] * r[4];
  58           n = q[2] * r[4];
  59           s += m;
  60           m = q[4] * r[4];
  61           t += n;
  62           q++;
  63           n = q[2] * r[16];
  64           s += m;
  65           m = q[4];
  66           t += n;
  67           s += m;
  68           t += r[6];
  69           q += g;
  70           k = *q;
  71           w += m;
  72           m = k * r[20];
  73           x += r[16];
  74           n = q[1] * r[20];
  75           s += m;
  76           t += n;
  77           q += g;
  78           k = *q;
  79           w += m;
  80           m = k * r[2];
  81           n = q[1] * r[22];
  82           s += m;
  83           m = q[4];
  84           t += n;
  85           q += g;
  86           s += m;
  87           t += q[0];
  88           s += m;
  89           u += m;
  90           n = q[1] * r[22];
  91           s += m;
  92           m = q[4] * r[22];
  93           t += n;
  94           q += g;
  95           k = 1;
  96           w += m;
  97           c = q[10];
  98           x += r[22];
  99           s += m;
 100           t += r[22];
 101           u += m;
 102           v += r[22];
 103           n = q[10] * r[30];
 104           d = r[32];
 105           l = q[1];
 106           b = 0;
 107           w += m;
 108           m = r[32];
 109           x += n;
 110           r = 0;
 111         }
 112       *i = s;
 113       p[0] = t;
 114       p[1] = u;
 115       p[6] = v;
 116       p[8] = w;
 117       p[10] = x;
 118     }
 119   while (j);
 120 }