gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-83.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-fre1-details" } */
   3
   4 struct X
   5 {
   6    int a : 1;
   7    int b : 1;
   8 } x;
   9
  10 void foo (int v)
  11 {
  12   x.a = 1;
  13   x.b = v;
  14   x.a = 1;
  15   x.b = v;
  16 }
  17
  18 struct Y
  19 {
  20    _Bool a;
  21    _Bool b;
  22 } y;
  23
  24 void bar (int v)
  25 {
  26   y.a = 1;
  27   y.b = v;
  28   y.a = 1;
  29   y.b = v;
  30 }
  31
  32 /* { dg-final { scan-tree-dump-times "Deleted redundant store" 4 "fre1" } } */