gcc/testsuite/gcc.target/arm/pr63408.c

   1 /* { dg-do run }  */
   2 /* { dg-options "-O2" } */
   3 void abort (void) __attribute__ ((noreturn));
   4 float __attribute__((noinline))
   5 f(float a, int b)
   6 {
   7   return a - (((float)b / 0x7fffffff) * 100);
   8 }
   9
  10 int
  11 main (void)
  12 {
  13   float a[] = { 100.0, 0.0, 0.0};
  14   int b[] = { 0x7fffffff, 0x7fffffff/100.0f, -0x7fffffff / 100.0f};
  15   float c[] = { 0.0, -1.0, 1.0 };
  16   int i;
  17
  18   for (i = 0; i < (sizeof(a) / sizeof (float)); i++)
  19     if (f (a[i], b[i]) != c[i])
  20         abort ();
  21
  22   return 0;
  23 }