gnu/dist/gcc4/gcc/testsuite/gcc.dg/tree-ssa/20031015-1.c

   1 /* With tree-ssa, gcc.dg/20000724-1.c failed because we missed
   2    a VOP of x in the asm statement.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-O1 -fdump-tree-alias1-vops" } */
   5
   6 struct s { int a; };
   7
   8 int
   9 main(void)
  10 {
  11   struct s x = { 0 };
  12   asm volatile ("" : : "r" (&x) : "memory");
  13   return 0;
  14 }
  15
  16 /* The V_MUST_DEF comes from the initial assignment; the V_MAY_DEF
  17    comes from the asm.  */
  18 /* { dg-final { scan-tree-dump-times "V_MUST_DEF" 1 "alias1" } } */
  19 /* { dg-final { scan-tree-dump-times "V_MAY_DEF" 1 "alias1" } } */
  20 /* { dg-final { cleanup-tree-dump "alias1" } } */