gcc/testsuite/gcc.dg/vect/pr60841.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-ffast-math" } */
   3
   4 /* This testcase shouldn't consume much memory or produce a 1GB vectorizer
   5    dump file due to SLP tree explosion.  */
   6
   7 struct S { int f1, f2, f3, f4; } a;
   8 struct T { short f3, f2, f1, f4; };
   9 int b, c, d, e, f, g;
  10 unsigned long z;
  11
  12 void
  13 foo (struct T *p, struct T *q, int x, int w)
  14 {
  15   for (; x; x++)
  16     {
  17       struct S h;
  18       int i;
  19       struct T j;
  20       struct T *r;
  21       h = a;
  22       g = 0;
  23       r = p + 2 * (c + 4) + 1;
  24       j = *r;
  25       r = p;
  26       f = r->f1 - 1;
  27       b = +1.0 + f * f;
  28       i = (r->f2 + j.f2) / 2;
  29       f = r->f3 - 1;
  30       b += 1.0 - i * f * f;
  31       f = r->f4 - 1;
  32       if (b)
  33         b += -1.0 - i * f;
  34       if (b / w)
  35         {
  36           h.f1 += 8.0 * r->f1;
  37           h.f2 += 8.0 * r->f2;
  38           h.f3 += 8.0 * r->f3;
  39           h.f4 += 8.0 * r->f4;
  40           g = 1;
  41         }
  42       r++;
  43       f = r->f1;
  44       i = (r->f2 + j.f2) / 2;
  45       f = r->f3 - 1;
  46       b += 1.0 - i * f * f;
  47       i = (r->f4);
  48       if (b * 65535UL / w)
  49         {
  50           h.f1 += 10.0 * r->f1;
  51           h.f2 += 10.0 * r->f2;
  52           h.f3 += 10.0 * r->f3;
  53           h.f4 += 10.0 * r->f4;
  54           g += 10.0;
  55         }
  56       r++;
  57       f = r->f1;
  58       z = 5UL * i;
  59       f = r->f2;
  60       i = (r->f3 + j.f3) / 2;
  61       b = -i * f * f;
  62       i = (r->f4 + j.f4) / 2;
  63       if (b * 65535UL / 25.0f)
  64         {
  65           h.f1 += 8.0 * r->f1;
  66           h.f2 += 8.0 * r->f2;
  67           h.f3 += 8.0 * r->f3;
  68           h.f4 += 8.0 * r->f4;
  69           g += 8.0;
  70         }
  71       r++;
  72       f = r->f1 - j.f1;
  73       b = 1 * 2.0 * i * f * f;
  74       f = r->f2;
  75       b += 4.0 * f;
  76       i = r->f3 / 2;
  77       f = r->f4 - 1;
  78       if (b * 1)
  79         {
  80           h.f1 += 8.0 * r->f1;
  81           h.f2 += 8.0 * r->f2;
  82           h.f3 += 8.0 * r->f3;
  83           h.f4 += 8.0 * r->f4;
  84           g += 8.0;
  85         }
  86       b = 4.0 * 1 * f;
  87       if (b * 65535UL / 25.0f)
  88         {
  89           h.f1 += 20.0 * r->f1;
  90           h.f2 += 20.0 * r->f2;
  91           h.f3 += 20.0 * r->f3;
  92           h.f4 += 20.0 * r->f4;
  93           g += 20.0;
  94         }
  95       b = 5 * (0.0 - i);
  96       if (b < 0)
  97         {
  98           h.f1 += 8.0 * r->f1;
  99           h.f2 += 8.0 * r->f2;
 100           h.f3 += 8.0 * r->f3;
 101           h.f4 += 8.0 * r->f4;
 102           g += 8.0;
 103         }
 104       r = p + 2 * (c + 4);
 105       i = (r->f1 + j.f1);
 106       b = 1 * 2.0 * i * 1;
 107       f = r->f2 - 1;
 108       i = (r->f3 + j.f3) / 2;
 109       b = 5 * (0.0 - i) * f * f;
 110       i = (r->f4 + j.f4) / 2;
 111       if (b * 65535UL / 25.0f)
 112         {
 113           h.f1 += 10.0 * r->f1;
 114           h.f2 += 10.0 * r->f2;
 115           h.f3 += 10.0 * r->f3;
 116           h.f4 += 10.0 * r->f4;
 117           g += 10.0;
 118         }
 119       r++;
 120       f = r->f1;
 121       b = 5UL * i * f;
 122       i = (r->f2 + j.f2) / 2;
 123       f = r->f3 - 1;
 124       b = 5 * (0.0 - i) * f * f;
 125       f = r->f4 - 1;
 126       if (b * 65535UL / 25.0f)
 127         {
 128           h.f1 += 40.0 * r->f1;
 129           h.f2 += 40.0 * r->f2;
 130           h.f3 += 40.0 * r->f3;
 131           h.f4 += 40.0 * r->f4;
 132           g += 40.0;
 133         }
 134       r++;
 135       i = (r->f1 + j.f1);
 136       b = 5 * i * f;
 137       f = r->f2;
 138       b = 4.0 * f * f;
 139       f = r->f3;
 140       i = (r->f4 + j.f4) / 2;
 141       b = 5 * (0.0 - i) * f * f;
 142       if (b * 25.0f)
 143         {
 144           h.f1 += 8.0 * r->f1;
 145           h.f2 += 8.0 * r->f2;
 146           h.f3 += 8.0 * r->f3;
 147           h.f4 += 8.0 * r->f4;
 148           g += 8.0;
 149         }
 150       r = p + 4 * (c + 4);
 151       i = r->f1 / 2;
 152       b = 5 * (1.0 + i);
 153       i = r->f2 + j.f2;
 154       f = r->f3 - 1;
 155       b = 5 * (0.0 - i) * f * f;
 156       i = (r->f4 + j.f4) / 2;
 157       if (b * 65535UL / 25.0f)
 158         {
 159           h.f1 += 5.0 * r->f1;
 160           h.f2 += 5.0 * r->f2;
 161           h.f3 += 5.0 * r->f3;
 162           h.f4 += 5.0 * r->f4;
 163           g += 5.0;
 164         }
 165       b = 5 * (1.0 + i);
 166       if (b < 0)
 167         {
 168           h.f1 += 5.0 * r->f1;
 169           h.f2 += 5.0 * r->f2;
 170           h.f3 += 5.0 * r->f3;
 171           h.f4 += 5.0 * r->f4;
 172           g += 5.0;
 173         }
 174       q->f1 = (h.f1 + g / 2 - 1) / g;
 175       q->f2 = (h.f2 + g / 2 - 1) / g;
 176       q->f3 = (h.f3 + g / 2 - 1) / g;
 177       q->f4 = (h.f4 + g / 2 - 1) / g;
 178       p++;
 179       q++;
 180     }
 181 }
 182