gcc/testsuite/gcc.dg/i386-signbit-3.c

   1 /* PR optimization/8746 */
   2 /* { dg-do run { target i?86-*-* } } */
   3 /* { dg-options "-O1 -mtune=i586" } */
   4
   5 extern void abort (void);
   6
   7 volatile int j;
   8
   9 void f0() { j=0; }
  10 void f1() { j=1; }
  11
  12 int foo(int x)
  13 {
  14   if ((short int)(x&0x8000) > (short int)0)
  15   {
  16     f0();
  17     return 0;
  18   }
  19   else
  20   {
  21     f1();
  22     return 1;
  23   }
  24 }
  25
  26 int main(void)
  27 {
  28   if (foo(0x8000) != 1)
  29     abort();
  30
  31    return 0;
  32 }