gcc/testsuite/gcc.target/powerpc/builtins-3-p9-runnable.c

   1 /* { dg-do run { target { powerpc64*-*-* && { lp64 && p9vector_hw } } } } */
   2 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
   3 /* { dg-options "-mcpu=power9 -O2" } */
   4
   5 #ifdef DEBUG
   6 #include <stdio.h>
   7 #endif
   8
   9 #include <altivec.h> // vector
  10
  11 void abort (void);
  12
  13 int main() {
  14    int i;
  15    vector float vfr, vfexpt;
  16    vector unsigned short vusha;
  17
  18    /* 1.0, -2.0, 0.0, 8.5, 1.5, 0.5, 1.25, -0.25 */
  19    vusha = (vector unsigned short){0B011110000000000, 0B1100000000000000,
  20                                    0B000000000000000, 0B0100100001000000,
  21                                    0B011111000000000, 0B0011100000000000,
  22                                    0B011110100000000, 0B1011010000000000};
  23
  24 #ifdef DEBUG
  25    printf ("Claim, source data is 8 16-bit floats:\n");
  26    printf ("   {1.0, -2.0, 0.0, 8.5, 1.5, 0.5, 1.25, -0.25}\n");
  27    printf ("vusha = (vector unsigned short){0B011110000000000, 0B1100000000000000,\n");
  28    printf ("                                0B000000000000000, 0B0100100001000000,\n");
  29    printf ("                                0B011111000000000, 0B0011100000000000,\n");
  30    printf ("                                0B011110100000000, 0B1011010000000000};\n\n");
  31 #endif
  32
  33    vfexpt = (vector float){1.0, -2.0, 0.0, 8.5};
  34    vfr = vec_extract_fp_from_shorth(vusha);
  35
  36 #ifdef DEBUG
  37    printf ("vec_extract_fp_from_shorth\n");
  38    for (i=0; i<4; i++)
  39      printf("result[%d] = %f; expected[%d] = %f\n",
  40             i, vfr[i], i, vfexpt[i]);
  41 #endif
  42
  43    for (i=0; i<4; i++) {
  44       if (vfr[i] != vfexpt[i])
  45          abort();
  46    }
  47
  48    vfexpt = (vector float){1.5, 0.5, 1.25, -0.25};
  49    vfr = vec_extract_fp_from_shortl(vusha);
  50
  51 #ifdef DEBUG
  52    printf ("\nvec_extract_fp_from_shortl\n");
  53    for (i=0; i<4; i++)
  54      printf("result[%d] = %f; expected[%d] = %f\n",
  55             i, vfr[i], i, vfexpt[i]);
  56 #endif
  57
  58     for (i=0; i<4; i++) {
  59       if (vfr[i] != vfexpt[i])
  60          abort();
  61    }
  62 }