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
   7 typedef float __m128 __attribute__ ((__vector_size__ (16)));
   8 __m128 a, d, e;
   9 int b;
  10 struct dt_interpolation c;
  11 __m128
  12 fn1 (float p1)
  13 {
  14   return (__attribute__ ((__vector_size__ (4 * sizeof 0))) float){ p1 };
  15 }
  16 __m128
  17 fn2 (float p1)
  18 {
  19   return fn1 (p1);
  20 }
  21 struct dt_interpolation
  22 {
  23   int width;
  24 };
  25 void
  26 fn3 (struct dt_interpolation *p1, int *p2)
  27 {
  28   int i = 0, n = 0;
  29   while (i < 2 * p1->width)
  30     n = i++;
  31   *p2 = n;
  32 }
  33 void
  34 fn4 ()
  35 {
  36   __m128 f;
  37   fn3 (&c, &b);
  38   __m128 g = fn2 (1.f / b);
  39   e = (__m128){};
  40   __m128 h = e;
  41   for (int i = 0; i < 2 * c.width; i++)
  42     {
  43       for (; c.width;)
  44         f = a;
  45       h = f;
  46     }
  47   d = h * g;
  48 }