gcc/testsuite/gcc.dg/vect/pr111882.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options { -fdump-tree-ifcvt-all } } */
   3
   4 static void __attribute__((noipa)) f(int n) {
   5   int i, j;
   6   struct S { char d[n]; int a; int b : 17; int c : 12; };
   7   struct S A[100][1111];
   8   for (i = 0; i < 100; i++) {
   9     asm volatile("" : : "g"(&A[0][0]) : "memory");
  10     for (j = 0; j < 1111; j++) A[i][j].b = 2;
  11   }
  12 }
  13 void g(void) { f(1); }
  14
  15 /* { dg-final { scan-tree-dump-not "Bitfield OK to lower" "ifcvt" } } */