gcc/testsuite/gcc.dg/vect/vect-early-break_93.c

   1 /* { dg-add-options vect_early_break } */
   2 /* { dg-require-effective-target vect_early_break_hw } */
   3 /* { dg-require-effective-target vect_int } */
   4
   5 /* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
   6
   7 #include "tree-vect.h"
   8
   9 #ifndef N
  10 #define N 30
  11 #endif
  12
  13 #ifndef IDX
  14 #define IDX 29
  15 #endif
  16
  17 int n_earlyclobbers;
  18
  19 typedef void* rtx;
  20 rtx reload_earlyclobbers[N] = {0};
  21
  22 rtx foo = (void*)0xbadf00d;
  23
  24 int
  25 __attribute__((noinline, noipa))
  26 earlyclobber_operand_p (rtx x)
  27 {
  28   int i;
  29
  30   for (i = 0; i < n_earlyclobbers; i++)
  31     if (reload_earlyclobbers[i] == x)
  32       return 1;
  33
  34   return 0;
  35 }
  36
  37 extern void abort ();
  38
  39 int main ()
  40 {
  41   check_vect ();
  42
  43   n_earlyclobbers = IDX;
  44   if (earlyclobber_operand_p (foo))
  45     abort ();
  46
  47   return 0;
  48 }