Viewing file:  builtins-1-p9-runnable.c (1.42 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-require-effective-target p9vector_hw } */
/* { dg-options "-O2 -mdejagnu-cpu=power9" } */
#include <altivec.h>
#include <stdio.h>
void abort (void);
int main() {
int i;
vector float vfa, vfb;
vector unsigned short vresult, vexpected;
vfa = (vector float){0.4, 1.6, 20.0, 99.9 };
vfb = (vector float){10.0, -2.0, 70.0, 999.0 };
/* Expected results. */
#ifdef __BIG_ENDIAN__
vexpected = (vector unsigned short) { 0x4900, 0xc000, 0x5460, 0x63ce,
0x3666, 0x3e66, 0x4d00, 0x563e };
#else
vexpected = (vector unsigned short) { 0x3666, 0x3e66, 0x4d00, 0x563e,
0x4900, 0xc000, 0x5460, 0x63ce };
#endif
/*
vresult = vec_pack_to_short_fp32 (vfa, vfb);
This built-in converts a pair of vector floats into a single vector of
packed half-precision (F16) values. The result type is a vector of
signed shorts.
The expected codegen for this builtin is
xvcvsphp t, vfa
xvcvsphp u, vfb
if (little endian)
vpkuwum vresult, t, u
else
vpkuwum vresult, u, t
*/
vresult = vec_pack_to_short_fp32 (vfa, vfb);
#ifdef DEBUG
for(i = 0; i< 4; i++) { printf("i=[%d] %f \n",i,vfa[i]); }
for(i = 0; i< 4; i++) { printf("i=[%d] %f \n",i+4,vfb[i]); }
for(i = 0; i< 8; i++) { printf("i=[%d] %d \n",i,vresult[i]); }
#endif
for(i = 0; i< 8; i++) {
if (vresult[i] != vexpected[i]) {
printf("i=[%d] 0x%x != 0x%x \n",i,vresult[i],vexpected[i]);
abort();
}
}
}
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