gcc/testsuite/gcc.dg/tm/reg-promotion.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fgnu-tm -O2 -fdump-tree-lim1" } */
   3
   4 /* Test that `count' is not written to unless p->data>0.  */
   5
   6 int count;
   7
   8 struct obj {
   9     int data;
  10     struct obj *next;
  11 } *q;
  12
  13 void func()
  14 {
  15   struct obj *p;
  16   __transaction_atomic {
  17     for (p = q; p; p = p->next)
  18       if (p->data > 0)
  19         count++;
  20   }
  21 }
  22
  23 /* { dg-final { scan-tree-dump-times "Cannot hoist conditional load of count because it is in a transaction" 1 "lim1" } } */
  24 /* { dg-final { cleanup-tree-dump "lim1" } } */