gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-26.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-fre-details" } */
   3
   4 typedef union
   5 {
   6   int* data;
   7 } SA;
   8
   9 typedef struct
  10 {
  11   int reserved;
  12   char* array;
  13 }SB;
  14
  15 typedef struct
  16 {
  17   int status;
  18 }SC;
  19
  20 void foo(SA* pResult, SB* method, SC* self)
  21 {
  22   if (method->array[0] == 'L' && !self->status && pResult->data != 0)
  23     pResult->data = pResult->data;
  24 }
  25
  26 /* { dg-final { scan-tree-dump "Deleted redundant store" "fre" } } */
  27 /* { dg-final { cleanup-tree-dump "fre" } } */