gcc/testsuite/gcc.dg/sms-7.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 -fmodulo-sched -fstrict-aliasing -fdump-rtl-sms -fmodulo-sched-allow-regmoves --param sms-min-sc=1" } */
   3
   4 extern void abort (void);
   5
   6 __attribute__ ((noinline))
   7 void foo (int * __restrict__ a, int * __restrict__ b, short * c)
   8 {
   9    int i;
  10    for(i = 0; i < 100; i+=4)
  11      {
  12        a[i] = b[i] * c[i];
  13        a[i+1] = b[i+1] * c[i+1];
  14        a[i+2] = b[i+2] * c[i+2];
  15        a[i+3] = b[i+3] * c[i+3];
  16      }
  17 }
  18
  19 int a[100], b[100];
  20 short c[100];
  21
  22 int main()
  23 {
  24 #if (__SIZEOF_INT__ <= 2)
  25   int i;
  26   long res;
  27 #else
  28   int i, res;
  29 #endif
  30   for(i = 0; i < 100; i++)
  31     {
  32       b[i] = c[i] = i;
  33     }
  34   foo(a, b, c);
  35
  36   res = 0;
  37   for(i = 0; i < 100; i++)
  38     {
  39       res += a[i];
  40     }
  41   if(res != 328350)
  42     abort();
  43
  44   return 0;
  45 }
  46
  47