Viewing file:  scalar-test-data-class-15.c (1.4 KB) -rw-r--r--
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/* { dg-do run { target { powerpc*-*-* } } } */
/* { dg-require-effective-target p9vector_hw } */
/* { dg-options "-mdejagnu-cpu=power9" } */
#include <altivec.h>
#include <stdbool.h>
#include <stdlib.h>
bool
test_infinity (__ieee128 *p)
{
__ieee128 source = *p;
/*
0x40 Test for NaN
0x20 Test for +Infinity
0x10 Test for -Infinity
0x08 Test for +Zero
0x04 Test for -Zero
0x02 Test for +Denormal
0x01 Test for -Denormal
*/
return scalar_test_data_class (source, 0x30);
}
int
main ()
{
/* Infinity is represented by a biased exponent value of:
* 255 in single format
* 2047 in double format
* 32767 in ieee128 format
* and a zero fraction value. */
__int128 plus_significand = (__int128) 0;
__int128 minus_significand = ((__int128) 0x1) << 127;
__int128 a_number_significand = (((__int128) 0x1) << 112);
unsigned long long int infinite_exponent = 0x7fff;
unsigned long long int a_number_exponent = 16383;
__ieee128 plus_infinity =
scalar_insert_exp (plus_significand, infinite_exponent);
__ieee128 minus_infinity =
scalar_insert_exp (minus_significand, infinite_exponent);
__ieee128 a_number =
scalar_insert_exp (a_number_significand, a_number_exponent);
if (!test_infinity (&plus_infinity))
abort ();
if (!test_infinity (&minus_infinity))
abort ();
if (test_infinity (&a_number))
abort ();
return 0;
}
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