(root)/
gcc-13.2.0/
gcc/
testsuite/
gcc.dg/
vect/
vect-6.c
       1  /* { dg-require-effective-target vect_float } */
       2  
       3  #include <stdarg.h>
       4  #include "tree-vect.h"
       5  
       6  #define N 16
       7  
       8  float results1[N] = {192.00,240.00,288.00,336.00,384.00,432.00,480.00,528.00,0.00};
       9  float results2[N] = {0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,54.00,120.00,198.00,288.00,390.00,504.00,630.00};
      10  float a[N] = {0};
      11  float e[N] = {0};
      12  float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
      13  float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
      14  
      15  __attribute__ ((noinline))
      16  int main1 ()
      17  {
      18    int i;
      19  
      20    for (i = 0; i < N/2; i++)
      21      { 
      22        a[i] = b[i+N/2] * c[i+N/2] - b[i] * c[i];
      23        e[i+N/2] = b[i] * c[i+N/2] + b[i+N/2] * c[i];
      24      }
      25  
      26    /* check results:  */
      27    for (i=0; i<N; i++)
      28      {
      29        if (a[i] != results1[i] || e[i] != results2[i])
      30  	abort(); 
      31      }
      32  
      33  
      34    for (i = 1; i <=N-4; i++)
      35      {
      36        a[i+3] = b[i-1];
      37      }
      38  
      39    /* check results:  */
      40    for (i = 1; i <=N-4; i++)
      41      {
      42        if (a[i+3] != b[i-1])
      43          abort ();
      44      }
      45  
      46    return 0;
      47  }
      48  
      49  int main (void)
      50  {
      51    check_vect ();
      52  
      53    return main1 ();
      54  }
      55  
      56  /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" } } */
      57  /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" { target { { vect_aligned_arrays } && {! vect_sizes_32B_16B} } } } } */
      58  /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { target { {! vect_aligned_arrays } && {vect_sizes_32B_16B} } } } } */