libitm/testsuite/libitm.c/dropref-2.c

   1 /* { dg-xfail-run-if "unsupported" { *-*-* } } */
   2 #include <stdlib.h>
   3 #include <libitm.h>
   4
   5 /* Test that _ITM_dropReferences() forces a commit of given chunk.  */
   6
   7 unsigned char pp[100];
   8
   9 int main()
  10 {
  11   int i;
  12
  13   for(i=0; i < 100; ++i)
  14     pp[i]=0x22;
  15
  16   __transaction_atomic {
  17     for(i=0; i < 100; ++i)
  18       pp[i]=0x33;
  19
  20     /* This should write-through pp[0..49]...  */
  21     _ITM_dropReferences (pp, 50);
  22
  23     /* ...while this should revert everything but pp[0..49].  */
  24     __transaction_cancel;
  25   }
  26
  27   for(i=0; i < 50; ++i)
  28     if (pp[i] != 0x33)
  29       abort();
  30
  31   for(i=50; i < 100; ++i)
  32     if (pp[i] != 0x22)
  33       abort();
  34
  35   return 0;
  36 }