C++ (Cpp) _mm_blend_pd Examples

Example #1

File: arch.hpp Project: huoyao/Hydro

inline void rotate_left_wm1(F64vec4 *v0, const F64vec4 v1)
{
    // {1.0, 2.0, 3.0, 4.0};
    // {5.0, 6.0, 7.0, 8.0};

    const __m128d hiv0      = _mm256_extractf128_pd(*v0, 1); // {3.0, 4.0}
    const __m128d phiv0     = _mm_permute_pd(hiv0, 0x1); // {4.0, 3.0}
    const __m256d shufv1    = _mm256_permute_pd(v1, 0x1); // {6.0, 5.0, 8.0, 7.0};
    const __m128d shufv1_lo = _mm256_extractf128_pd(shufv1, 0); // {6.0, 5.0}
    const __m128d shufv1_hi = _mm256_extractf128_pd(shufv1, 1); // {8.0, 7.0}
    const __m128d v1_blend  = _mm_blend_pd(shufv1_lo, shufv1_hi, 0x2); // blend   {6.0, 7.0};
    const __m256d inserted  = _mm256_insertf128_pd(shufv1, v1_blend, 1); // insert  {6.0, 5.0, 6.0, 7.0};
    const __m256d blended   = _mm256_blend_pd(_mm256_castpd128_pd256(phiv0), inserted, 0xE);
    *v0                     = blended;
}

Example #2

File: testimm-3.c Project: 0day-ci/gcc

void
test2bit (void)
{
  d1 = _mm_blend_pd (d2, d3, k4);	  /* { dg-error "the last argument must be a 2-bit immediate" } */
}

Example #3

File: sse41-builtins.c Project: ashwinma/clang_trunk

__m128d test_blend_pd(__m128d V1, __m128d V2) {
  // CHECK-LABEL: test_blend_pd
  // CHECK: shufflevector <2 x double> %{{.*}}, <2 x double> %{{.*}}, <2 x i32> <i32 0, i32 3>
  // CHECK-ASM: blendpd $2, %xmm{{.*}}, %xmm{{.*}}
  return _mm_blend_pd(V1, V2, 2);
}

Example #4

File: sse-builtins.c Project: ADonut/LLVM-GPGPU

__m128d test_blend_pd(__m128d V1, __m128d V2) {
  // CHECK-LABEL: @test_blend_pd
  // CHECK: shufflevector <2 x double> %{{.*}}, <2 x double> %{{.*}}, <2 x i32> <i32 2, i32 1>
  return _mm_blend_pd(V1, V2, 1);
}