37 lines
598 B
C
37 lines
598 B
C
/* Test float on alpha. */
|
|
|
|
/* { dg-do run { target alpha*-*-* } } */
|
|
/* { dg-options "-mieee -O2" } */
|
|
|
|
typedef int int32_t __attribute__ ((__mode__ ( __SI__ ))) ;
|
|
typedef union
|
|
{
|
|
float value;
|
|
int32_t word;
|
|
} ieee_float_shape_type;
|
|
|
|
int isinff(float x)
|
|
{
|
|
int32_t ix,t;
|
|
ieee_float_shape_type gf_u;
|
|
gf_u.value = x;
|
|
ix = gf_u.word;
|
|
printf ("%x\n", ix);
|
|
t = ix & 0x7fffffff;
|
|
t ^= 0x7f800000;
|
|
t |= -t;
|
|
return ~(t >> 31) & (1 - ((ix & 0x80000000) >> 30));
|
|
}
|
|
|
|
main ()
|
|
{
|
|
float x = 1.0 / 0.0;
|
|
int i = isinff (x);
|
|
|
|
if (i == 0)
|
|
abort ();
|
|
|
|
printf ("%d\n", i);
|
|
return 0;
|
|
}
|