Viewing file:  vsx-builtin-15a.c (2.38 KB) -rw-r--r--
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/* { dg-do run { target int128 } } */
/* { dg-require-effective-target vsx_hw } */
/* { dg-options "-mvsx" } */
/* This test should run the same on any target that supports vsx
instructions. Intentionally not specifying cpu in order to test
all code generation paths. */
#include <altivec.h>
extern void abort (void);
#define CONST0 (3.1415926539)
#define CONST1 (3.1415926539 * 2)
/* Test that indices > length of vector are applied modulo the vector
length. */
/* Test for vector residing in register. */
double e0(vector double v){ return __builtin_vec_ext_v2df (v, 0); }
double e1(vector double v){ return __builtin_vec_ext_v2df (v, 1); }
double e2(vector double v){ return __builtin_vec_ext_v2df (v, 2); }
double e3(vector double v){ return __builtin_vec_ext_v2df (v, 3); }
/* Test for vector residing in memory. */
double me0(vector double *vp){ return __builtin_vec_ext_v2df (*vp, 0); }
double me1(vector double *vp){ return __builtin_vec_ext_v2df (*vp, 1); }
double me2(vector double *vp){ return __builtin_vec_ext_v2df (*vp, 2); }
double me3(vector double *vp){ return __builtin_vec_ext_v2df (*vp, 3); }
/* Test the same with variable indices. */
/* Test for variable selector and vector residing in register. */
__attribute__((noinline))
double ei(vector double v, int i){ return __builtin_vec_ext_v2df (v, i); }
/* Test for variable selector and vector residing in memory. */
double mei(vector double *vp, int i){ return __builtin_vec_ext_v2df (*vp, i); }
int main (int argc, char *argv[]) {
vector double dv;
double d;
dv[0] = CONST0;
dv[1] = CONST1;
d = e0 (dv);
if (d != CONST0)
abort ();
d = e1 (dv);
if (d != CONST1)
abort ();
d = e2 (dv);
if (d != CONST0)
abort ();
d = e3 (dv);
if (d != CONST1)
abort ();
d = me0 (&dv);
if (d != CONST0)
abort ();
d = me1 (&dv);
if (d != CONST1)
abort ();
d = me2 (&dv);
if (d != CONST0)
abort ();
d = me3 (&dv);
if (d != CONST1)
abort ();
d = ei (dv, 0);
if (d != CONST0)
abort ();
d = ei (dv, 1);
if (d != CONST1)
abort ();
d = ei (dv, 2);
if (d != CONST0)
abort ();
d = ei (dv, 3);
if (d != CONST1)
abort ();
d = mei (&dv, 0);
if (d != CONST0)
abort ();
d = mei (&dv, 1);
if (d != CONST1)
abort ();
d = mei (&dv, 2);
if (d != CONST0)
abort ();
d = mei (&dv, 3);
if (d != CONST1)
abort ();
return 0;
}
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