C++ (Cpp) _mm_sign_epi8 Examples

Example #1

File: sora_ext_lib.c Project: travisfcollins/Ziria

//FINL   
void __ext_v_negate_complex8(struct complex8* output, int lenout, complex8* input, int lenin)  
{  
  const int wlen = sizeof(vcb) / sizeof(complex8);  
  const static unsigned char __0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF[16] =  
    {  
      0xFF, 0xFF, 0xFF, 0xFF,  
      0xFF, 0xFF, 0xFF, 0xFF,  
      0xFF, 0xFF, 0xFF, 0xFF,  
      0xFF, 0xFF, 0xFF, 0xFF  
    };  
  
  int i;  
  vcb *pinput = (vcb *)input;  
  vcb *poutput = (vcb *)output;  
  for (i = 0; i < lenin / wlen; i++)  
    {  
      //*poutput = (vcb)xor(*pinput, *((vcb*) __0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF));  
      *poutput = (vcb)_mm_sign_epi8(*pinput, *((vcb*)__0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF));  
      poutput++;  
      pinput ++;  
    }  
  for (int j = i * wlen; j < lenin; j++)  
    {  
      output[j].re = -input[j].re;  
      output[j].im = -input[j].im;  
    }  
}  

Example #2

File: sora_ext_lib.c Project: travisfcollins/Ziria

//FINL
void __ext_v_sign_int8(int8 *output, int outlen, int8 *input1, int inlen1, int8 *input2, int inlen2)  
{  
  int cnt = 0;  
  vcs *pi1 = (vcs *)input1;  
  vcs *pi2 = (vcs *)input2;  
  vcs *po = (vcs *)output;  
  
  while (cnt + 16 <= inlen1)  
    {  
      *po = (vcs)_mm_sign_epi8(*pi1, *pi2);  
      pi1++;  
      pi2++;  
      po++;  
      cnt += 16;  
    }  
  
  while (cnt < inlen1)  
    {  
      output[cnt] = (input2[cnt] < 0) ? (-input1[cnt]) : input1[cnt];  
      cnt++;  
    }  
  outlen = inlen1;  
}  

Example #3

File: ssse3-builtins.c Project: PolyJIT/clang

__m128i test_mm_sign_epi8(__m128i a, __m128i b) {
  // CHECK-LABEL: test_mm_sign_epi8
  // CHECK: call <16 x i8> @llvm.x86.ssse3.psign.b.128(<16 x i8> %{{.*}}, <16 x i8> %{{.*}})
  return _mm_sign_epi8(a, b);
}