gcc/testsuite/g++.dg/tm/pr47530.C

   1 // { dg-do compile }
   2 // { dg-options "-fgnu-tm -O2 -fdump-tree-optimized" }
   3
   4 typedef __SIZE_TYPE__ size_t;
   5 extern void *malloc(size_t);
   6
   7 namespace bench
   8 {
   9     class LLNode
  10     {
  11         LLNode* next;
  12         int data;
  13
  14     public:
  15         __attribute__((transaction_safe))
  16         LLNode(int val, LLNode* m_next)
  17         {
  18                 data = val;
  19                 next = m_next;
  20         }
  21         __attribute__((transaction_safe))
  22           ~LLNode(){}
  23         __attribute__((transaction_safe))
  24           int get_val()  {return data;}
  25         __attribute__((transaction_safe))
  26           LLNode* get_next()  {return next;}
  27         __attribute__((transaction_safe))
  28           void set_val(int val) {data = val;}
  29         __attribute__((transaction_safe))
  30           void set_next(LLNode* n)  {next = n;}
  31         __attribute__((transaction_safe))
  32           void *operator new(size_t size);
  33     };
  34
  35     class LinkedList
  36     {
  37       LLNode* head;
  38     public:
  39         LinkedList();
  40         void insert(int val);
  41     };
  42 }
  43
  44 using bench::LinkedList;
  45 using bench::LLNode;
  46
  47
  48 __attribute__((transaction_safe))
  49 void* LLNode::operator new(size_t size)
  50 {
  51   return malloc(size);
  52 }
  53
  54 LinkedList::LinkedList() : head(new LLNode(-1, 0)) { }
  55
  56 void LinkedList::insert(int val)
  57 {
  58   __transaction_atomic {
  59     LLNode* prev = head;
  60     LLNode* curr = head->get_next();
  61
  62     while (curr != 0) {
  63       if (curr->get_val() >= val)
  64         break;
  65       prev = curr;
  66       curr = prev->get_next();
  67     }
  68
  69     if (!curr || (curr->get_val() > val)){
  70       LLNode* tmp = new LLNode(val,curr);
  71       prev->set_next(tmp);
  72     }
  73   }
  74 }
  75
  76 // Make sure we don't do tail optimization on the commit, except on
  77 // the uninstrumented code path.
  78 // { dg-final { scan-tree-dump-times "commitTransaction...; .tail call" 1 "optimized" } }
  79