gcc/testsuite/gcc.dg/tm/alias-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fgnu-tm -fdump-tree-ealias -O" } */
   3
   4 typedef __UINTPTR_TYPE__ ptrcast;
   5
   6 #if (__SIZEOF_POINTER__ == 4)
   7 #define TM_LOAD  __builtin__ITM_RU4
   8 #define TM_STORE __builtin__ITM_WU4
   9 #elif (__SIZEOF_POINTER__ == 8)
  10 #define TM_LOAD __builtin__ITM_RU8
  11 #define TM_STORE __builtin__ITM_WU8
  12 #else
  13 #error Add target support here
  14 #endif
  15
  16 void candy ();
  17
  18 struct mystruct_type {
  19   ptrcast *ptr;
  20 } *mystruct, *mystruct2;
  21
  22 ptrcast *someptr, **pp;
  23 ptrcast ui;
  24
  25 void tootsie_roll () __attribute__((transaction_wrap (candy)));
  26 void tootsie_roll ()
  27 {
  28   ui = TM_LOAD  (&mystruct);
  29   mystruct2 = (struct mystruct_type *) ui;
  30
  31   pp = &mystruct2->ptr;
  32 }
  33
  34 void foo()
  35 {
  36   candy();
  37 }
  38
  39 /* { dg-final { scan-tree-dump-times "ui\..* = .*same as mystruct" 1 "ealias" } } */
  40 /* { dg-final { scan-tree-dump-times "mystruct.*ESCAPED" 1 "ealias" } } */
  41 /* { dg-final { scan-tree-dump-times "pp = .*same as mystruct" 1 "ealias" } } */