gcc/testsuite/gcc.dg/fold-bitand-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fdump-tree-original" } */
   3
   4 char c[4] __attribute__ ((aligned (4)));
   5
   6 struct S {
   7   char c1;
   8   char c2;
   9   char c3;
  10   char c4;
  11 };
  12
  13 int f1 (void)
  14 {
  15   return 3 & (__SIZE_TYPE__)&c[1];
  16 }
  17
  18 int f2 (void)
  19 {
  20   return 3 & (__SIZE_TYPE__)&((struct S *)&c)->c2;
  21 }
  22
  23 /* { dg-final { scan-tree-dump-times "\& 3" 0 "original" } } */
  24 /* { dg-final { scan-tree-dump-times "return 1" 2 "original" } } */