File: loop-unswitch-8.c

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gcc-arm-none-eabi 15%3A14.2.rel1-1
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/* { dg-do compile } */
/* { dg-options "-O2 -funswitch-loops -fdump-tree-unswitch-optimized" } */

int
foo(double *a, double *b, double *c, double *d, double *r, int size, int order)
{
  for (int i = 0; i < size; i++)
  {
    double tmp;

    if (order < 3)
      tmp = -8 * a[i];
    else
      tmp = -4 * b[i];

    double x = 3 * tmp + d[i] + tmp;

    if (5 > order)
      x += 2;

    if (order == 12345)
      x *= 5;

    double y = 3.4f * tmp + d[i];
    r[i] = x + y;
  }

  return 0;
}

/* { dg-final { scan-tree-dump-times "unswitching loop . on .if. with condition: order" 3 "unswitch" } } */