Viewing file:  vsx-builtin-14b.c (2.49 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-require-effective-target vmx_hw } */
/* { dg-options "-maltivec -O3" } */
/* This test should run the same on any target that supports altivec/dfp
instructions. Intentionally not specifying cpu in order to test
all code generation paths. */
#include <altivec.h>
extern void abort (void);
#define CONST0 ((float) (3.1415926539))
#define CONST1 ((float) (3.1415926539 * 2))
#define CONST2 ((float) (3.1415926539 * 3))
#define CONST3 ((float) (3.1415926539 * 4))
/* Test that indices > length of vector are applied modulo the vector
length. */
/* Test for vector residing in register. */
float e0(vector float v){ return __builtin_vec_ext_v4sf (v, 0); }
float e1(vector float v){ return __builtin_vec_ext_v4sf (v, 1); }
float e7(vector float v){ return __builtin_vec_ext_v4sf (v, 7); }
float e8(vector float v){ return __builtin_vec_ext_v4sf (v, 8); }
/* Test for vector residing in memory. */
float me0(vector float *vp){ return __builtin_vec_ext_v4sf (*vp, 0); }
float me1(vector float *vp){ return __builtin_vec_ext_v4sf (*vp, 1); }
float me13(vector float *vp)
{
return __builtin_vec_ext_v4sf (*vp, 13);
}
float me15(vector float *vp)
{
return __builtin_vec_ext_v4sf (*vp, 15);
}
/* Test the same with variable indices. */
/* Test for variable selector and vector residing in register. */
__attribute__((noinline))
float ei(vector float v, int i)
{
return __builtin_vec_ext_v4sf (v, i);
}
/* Test for variable selector and vector residing in memory. */
float mei(vector float *vp, int i)
{
return __builtin_vec_ext_v4sf (*vp, i);
}
int main (int argc, char *argv[]) {
vector float dv = { CONST0, CONST1, CONST2, CONST3 };
float d;
d = e0 (dv);
if (d != CONST0)
abort ();
d = e1 (dv);
if (d != CONST1)
abort ();
d = e7 (dv);
if (d != CONST3)
abort ();
d = e8 (dv);
if (d != CONST0)
abort ();
d = me0 (&dv);
if (d != CONST0)
abort ();
d = me1 (&dv);
if (d != CONST1)
abort ();
d = me13 (&dv);
if (d != CONST1)
abort ();
d = me15 (&dv);
if (d != CONST3)
abort ();
d = ei (dv, 0);
if (d != CONST0)
abort ();
d = ei (dv, 2);
if (d != CONST2)
abort ();
d = ei (dv, 11);
if (d != CONST3)
abort ();
d = ei (dv, 17);
if (d != CONST1)
abort ();
d = mei (&dv, 0);
if (d != CONST0)
abort ();
d = mei (&dv, 1);
if (d != CONST1)
abort ();
d = mei (&dv, 15);
if (d != CONST3)
abort ();
d = mei (&dv, 6);
if (d != CONST2)
abort ();
return 0;
}
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