/* { dg-do compile } */ /* { dg-options "-fgnu-tm -O -fdump-tree-tmmark" } */ extern int something(void) __attribute__((transaction_safe)); extern void *malloc (__SIZE_TYPE__) __attribute__((malloc,transaction_safe)); int f() { int *p; p = malloc (sizeof (*p) * 100); foo(p[5]); __transaction_atomic { /* p[5] is thread private, however the SSA_NAME that holds the address dominates the entire transaction (transaction invariant) so we can use a save/restore pair. */ p[5] = 123; if (something()) __transaction_cancel; } return p[5]; } /* { dg-final { scan-tree-dump-times "ITM_LU" 0 "tmmark" } } */ /* { dg-final { scan-tree-dump-times "ITM_WU" 0 "tmmark" } } */ /* { dg-final { scan-tree-dump-times "int tm_save" 1 "tmmark" } } */ /* { dg-final { cleanup-tree-dump "tmmark" } } */