gcc/testsuite/gcc.dg/pr63914.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ffast-math" } */
   3 /* { dg-prune-output "non-standard ABI extension" } */
   4 /* { dg-additional-options "-fno-common" { target hppa*-*-hpux* } } */
   5 /* { dg-additional-options "-msse" { target { i?86-*-* x86_64-*-* } } } */
   6 /* { dg-require-effective-target int32plus } */
   7
   8 typedef float __m128 __attribute__ ((__vector_size__ (16)));
   9 __m128 a, d, e;
  10 int b;
  11 struct dt_interpolation c;
  12 __m128
  13 fn1 (float p1)
  14 {
  15   return (__attribute__ ((__vector_size__ (4 * sizeof 0))) float){ p1 };
  16 }
  17 __m128
  18 fn2 (float p1)
  19 {
  20   return fn1 (p1);
  21 }
  22 struct dt_interpolation
  23 {
  24   int width;
  25 };
  26 void
  27 fn3 (struct dt_interpolation *p1, int *p2)
  28 {
  29   int i = 0, n = 0;
  30   while (i < 2 * p1->width)
  31     n = i++;
  32   *p2 = n;
  33 }
  34 void
  35 fn4 ()
  36 {
  37   __m128 f;
  38   fn3 (&c, &b);
  39   __m128 g = fn2 (1.f / b);
  40   e = (__m128){};
  41   __m128 h = e;
  42   for (int i = 0; i < 2 * c.width; i++)
  43     {
  44       for (; c.width;)
  45         f = a;
  46       h = f;
  47     }
  48   d = h * g;
  49 }