Viewing file:  scalar-insert-exp-15.c (1.29 KB) -rw-r--r--
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/* { dg-do run { target { powerpc*-*-* } } } */
/* { dg-require-effective-target lp64 } */
/* { dg-require-effective-target p9vector_hw } */
/* { dg-options "-mdejagnu-cpu=power9" } */
/* This test should succeed only on 64-bit configurations. */
#include <altivec.h>
#include <stdlib.h>
__ieee128
insert_exponent (__ieee128 *significand_p,
unsigned long long int *exponent_p)
{
__ieee128 significand = *significand_p;
unsigned long long int exponent = *exponent_p;
return scalar_insert_exp (significand, exponent);
}
#define BIAS_FOR_QUAD_EXP 16383
int
main ()
{
/* most-significant bit @13, shift it to position 113 */
unsigned __int128 significand_1 = ((unsigned __int128) 0x1100) << 100;
unsigned __int128 significand_2 = ((unsigned __int128) 0x1101) << 100;
unsigned long long int exponent_1 = 126 + BIAS_FOR_QUAD_EXP;
unsigned long long int exponent_2 = 124 + BIAS_FOR_QUAD_EXP;
__ieee128 *significand_1_ptr = (__ieee128 *) &significand_1;
__ieee128 *significand_2_ptr = (__ieee128 *) &significand_2;
__ieee128 x = (__ieee128) (((__int128) 0x1100LL) << 114);
__ieee128 z = (__ieee128) (((__int128) 0x1101LL) << 112);
if (insert_exponent (significand_1_ptr, &exponent_1) != x)
abort ();
if (insert_exponent (significand_2_ptr, &exponent_2) != z)
abort ();
return 0;
}
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