Viewing file:  pr54300.C (1.74 KB) -rw-r--r--
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/* { dg-do run { target arm*-*-* } } */
/* { dg-require-effective-target arm_neon } */
/* { dg-options "-O2" } */
/* { dg-add-options arm_neon } */
#include <arm_neon.h>
#include <stdlib.h>
struct __attribute__ ((aligned(8))) _v16u8_ {
uint8x16_t val;
_v16u8_( const int16x8_t &src) { val = vreinterpretq_u8_s16(src); }
operator int16x8_t () const { return vreinterpretq_s16_u8(val); }
};
typedef struct _v16u8_ v16u8;
struct __attribute__ ((aligned(4))) _v8u8_ {
uint8x8_t val;
_v8u8_( const uint8x8_t &src) { val = src; }
operator int16x4_t () const { return vreinterpret_s16_u8(val); }
};
typedef struct _v8u8_ v8u8;
typedef v16u8 v8i16;
typedef int32x4_t v4i32;
typedef const short cv1i16;
typedef const unsigned char cv1u8;
typedef const v8i16 cv8i16;
static inline __attribute__((always_inline)) v8u8 zero_64(){ return vdup_n_u8( 0 ); }
static inline __attribute__((always_inline)) v8i16 loadlo_8i16( cv8i16* p ){
return vcombine_s16( vld1_s16( (cv1i16 *)p ), zero_64() );
}
static inline __attribute__((always_inline)) v8i16 _loadlo_8i16( cv8i16* p, int offset ){
return loadlo_8i16( (cv8i16*)(&((cv1u8*)p)[offset]) );
}
void __attribute__((noinline))
test(unsigned short *_Inp, int32_t *_Out,
unsigned int s1v, unsigned int dv0,
unsigned int smask_v)
{
int32x4_t c = vdupq_n_s32(0);
for(unsigned int sv=0 ; sv!=dv0 ; sv=(sv+s1v)&smask_v )
{
int32x4_t s;
s = vmovl_s16( vget_low_s16( _loadlo_8i16( (cv8i16*) _Inp, sv ) ) );
c = vaddq_s32( c, s );
}
vst1q_s32( _Out, c );
}
int
main()
{
unsigned short a[4] = {1, 2, 3, 4};
int32_t b[4] = {0, 0, 0, 0};
test(a, b, 1, 1, ~0);
if (b[0] != 1 || b[1] != 2 || b[2] != 3 || b[3] != 4)
abort();
return 0;
}
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