gcc/testsuite/gcc.dg/tree-ssa/pr94969.c

   1 /* PR tree-optimization/52267 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O3 -fdump-tree-ldist-details" } */
   4
   5 int a = 0, b = 0, c = 0;
   6 struct S {
   7   signed m : 7;
   8   signed e : 2;
   9 };
  10 struct S f[2] = {{0, 0}, {0, 0}};
  11 struct S g = {0, 0};
  12
  13 void __attribute__((noinline))
  14 k()
  15 {
  16   for (; c <= 1; c++) {
  17     f[b] = g;
  18     f[b].e ^= 1;
  19   }
  20 }
  21 int main()
  22 {
  23   k();
  24   if (f[b].e != 1)
  25     __builtin_abort ();
  26 }
  27
  28 /* { dg-final { scan-tree-dump-not "Loop 1 distributed: split to 3 loops" "ldist" } } */