Viewing file:  vec-insert-exp-11.c (1.06 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 <stdlib.h>
__vector double
make_doubles (__vector double *significands_p,
__vector unsigned long long int *exponents_p)
{
__vector double significands = *significands_p;
__vector unsigned long long int exponents = *exponents_p;
return vec_insert_exp (significands, exponents);
}
int
main ()
{
__vector unsigned long long int significands;
__vector double *significands_p = (__vector double *) &significands;
__vector unsigned long long int exponents;
__vector double result;
/* 53 bits in significand, plus the sign bit: 0x8000_0000_0000_0000 */
significands[0] = 0x0010000000000000; /* 1.0 */
significands[1] = 0x801c000000000000; /* -1.75 */
exponents[0] = 1023; /* exp = 0: 1.0 */
exponents[1] = 1021; /* exp = -2: -0.4375 (7/16) */
result = make_doubles (significands_p, &exponents);
if ((result[0] != 1.0) || (result[1] != -0.4375))
abort();
return 0;
}
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