gcc/testsuite/gcc.target/powerpc/pr37191.c

/* { dg-do compile } */
/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
/* { dg-options "-O3 -mpower8-vector" } */
/* { dg-require-effective-target p8vector_hw } */

#define NO_WARN_X86_INTRINSICS 1

#include <mmintrin.h>
#include <stddef.h>
#include <stdint.h>

#if 0
extern const uint64_t ff_bone;
#endif

static inline void transpose4x4(uint8_t *dst, uint8_t *src, ptrdiff_t dst_stride, ptrdiff_t src_stride) {
  __m64 row0 = _mm_cvtsi32_si64(*(unsigned*)(src + (0 * src_stride)));
  __m64 row1 = _mm_cvtsi32_si64(*(unsigned*)(src + (1 * src_stride)));
  __m64 row2 = _mm_cvtsi32_si64(*(unsigned*)(src + (2 * src_stride)));
  __m64 row3 = _mm_cvtsi32_si64(*(unsigned*)(src + (3 * src_stride)));
  __m64 tmp0 = _mm_unpacklo_pi8(row0, row1);
  __m64 tmp1 = _mm_unpacklo_pi8(row2, row3);
  __m64 row01 = _mm_unpacklo_pi16(tmp0, tmp1);
  __m64 row23 = _mm_unpackhi_pi16(tmp0, tmp1);
  *((unsigned*)(dst + (0 * dst_stride))) = _mm_cvtsi64_si32(row01);
  *((unsigned*)(dst + (1 * dst_stride))) = _mm_cvtsi64_si32(_mm_unpackhi_pi32(row01, row01));
  *((unsigned*)(dst + (2 * dst_stride))) = _mm_cvtsi64_si32(row23);
  *((unsigned*)(dst + (3 * dst_stride))) = _mm_cvtsi64_si32(_mm_unpackhi_pi32(row23, row23));
}

#if 0
static inline void h264_loop_filter_chroma_intra_mmx2(uint8_t *pix, int stride, int alpha1, int beta1)
{
    asm volatile(
        ""
        :: "r"(pix-2*stride), "r"(pix), "r"((long)stride),
           "m"(alpha1), "m"(beta1), "m"(ff_bone)
    );
}
#endif

void h264_h_loop_filter_chroma_intra_mmx2(uint8_t *pix, int stride, int alpha, int beta)
{
  uint8_t trans[8*4] __attribute__ ((aligned (8)));
  transpose4x4(trans, pix-2, 8, stride);
  transpose4x4(trans+4, pix-2+4*stride, 8, stride);
//    h264_loop_filter_chroma_intra_mmx2(trans+2*8, 8, alpha-1, beta-1);
  transpose4x4(pix-2, trans, stride, 8);
  transpose4x4(pix-2+4*stride, trans+4, stride, 8);
}