Viewing file:  vec-insert-exp-8.c (1.14 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 float
make_floats (__vector unsigned int *significands_p,
__vector unsigned int *exponents_p)
{
__vector unsigned int significands = *significands_p;
__vector unsigned int exponents = *exponents_p;
return vec_insert_exp (significands, exponents);
}
int
main ()
{
__vector unsigned int significands;
__vector unsigned int exponents;
__vector float result;
/* 24 bits in significand, plus the sign bit: 0x80ffffff */
significands[0] = 0x00800000; /* 1.0 */
significands[1] = 0x00c00000; /* 1.5 */
significands[2] = 0x80e00000; /* -1.75 */
significands[3] = 0x80c00000; /* -1.5 */
exponents[0] = 127; /* exp = 0: 1.0 */
exponents[1] = 128; /* exp = 1: 3.0.0 */
exponents[2] = 129; /* exp = 2: -7.0 */
exponents[3] = 125; /* exp = -2: -0.375 */
result = make_floats (&significands, &exponents);
if ((result[0] != 1.0f) ||
(result[1] != 3.0f) || (result[2] != -7.0f) || (result[3] != -0.375f))
abort();
return 0;
}
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