gcc/testsuite/gcc.dg/vect/if-cvt-stores-vect-ifcvt-18.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 50
   7
   8 typedef struct {
   9   short a;
  10   short b;
  11 } data;
  12
  13 data in1[N], in2[N], out[N];
  14 short result[N*2] = {10,-7,11,-6,12,-5,13,-4,14,-3,15,-2,16,-1,17,0,18,1,19,2,20,3,21,4,22,5,23,6,24,7,25,8,26,9,27,10,28,11,29,12,30,13,31,14,32,15,33,16,34,17,35,18,36,19,37,20,38,21,39,22,40,23,41,24,42,25,43,26,44,27,45,28,46,29,47,30,48,31,49,32,50,33,51,34,52,35,53,36,54,37,55,38,56,39,57,40,58,41,59,42};
  15 short out1[N], out2[N];
  16
  17 __attribute__ ((noinline)) void
  18 foo ()
  19 {
  20   int i;
  21   short c, d;
  22
  23   for (i = 0; i < N; i++)
  24     {
  25       c = in1[i].b;
  26       d = in2[i].b;
  27
  28       if (c >= d)
  29         {
  30           out[i].b = in1[i].a;
  31           out[i].a = d + 5;
  32         }
  33       else
  34         {
  35           out[i].b = d - 12;
  36           out[i].a = in2[i].a + d;
  37         }
  38     }
  39 }
  40
  41 int
  42 main (void)
  43 {
  44   int i;
  45
  46   check_vect ();
  47
  48   for (i = 0; i < N; i++)
  49     {
  50       in1[i].a = i;
  51       in1[i].b = i + 2;
  52       in2[i].a = 5;
  53       in2[i].b = i + 5;
  54       __asm__ volatile ("");
  55     }
  56
  57   foo ();
  58
  59 #pragma GCC novector
  60   for (i = 0; i < N; i++)
  61     {
  62       if (out[i].a != result[2*i] || out[i].b != result[2*i+1])
  63         abort ();
  64     }
  65
  66   return 0;
  67 }
  68
  69 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  { xfail { { vect_no_align && { ! vect_hw_misalign } } || { ! vect_strided2 } } } } } */