Viewing file:  pr44900.C (1.73 KB) -rw-r--r--
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/* { dg-do run { target i?86-*-* x86_64-*-* } } */
/* { dg-options "-msse" } */
/* { dg-require-effective-target sse_runtime } */
typedef float __m128 __attribute__ ((__vector_size__ (16), __may_alias__));
typedef float __v4sf __attribute__ ((__vector_size__ (16)));
extern __inline __m128 __attribute__((__gnu_inline__, __always_inline__,
__artificial__))
_mm_set_ps (const float __Z, const float __Y, const float __X, const float __W)
{
return __extension__ (__m128)(__v4sf){ __W, __X, __Y, __Z };
}
struct vec
{
union {
__m128 v;
float e[4];
};
static const vec & zero()
{
static const vec v = _mm_set_ps(0, 0, 0, 0);
return v;
}
vec() {}
vec(const __m128 & a) : v(a) {}
operator const __m128&() const { return v; }
};
struct vec2
{
vec _v1;
vec _v2;
vec2() {}
vec2(const vec & a, const vec & b) : _v1(a), _v2(b) {}
static vec2 load(const float * a)
{
return vec2(
__builtin_ia32_loadups(&a[0]),
__builtin_ia32_loadups(&a[4]));
}
const vec & v1() const { return _v1; }
const vec & v2() const { return _v2; }
};
extern "C" void abort(void);
inline bool operator==(const vec & a, const vec & b)
{ return 0xf == __builtin_ia32_movmskps(__builtin_ia32_cmpeqps(a, b)); }
int main( int argc, char * argv[] )
{
__attribute__((aligned(16))) float data[] =
{ 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5 };
float * p = &data[2];
vec2 a;
a = vec2::load(p);
vec v1 = a.v1();
vec v2 = a.v2();
if (v2.e[3] != 7.0)
abort();
return 0;
}
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