20031106-6.c

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· C语言 代码 · 共 29 行

/* { dg-do compile } */ 
/* { dg-options "-O1 -fdump-tree-optimized" } */

extern void link_error (void);

/* Check for copyprop on structs.  */

struct s
{
  char d;
  int a, b;
  double m;
};

struct s foo (struct s r)
{
  struct s temp_struct1;
  struct s temp_struct2;
  struct s temp_struct3;
  temp_struct1 = r;
  temp_struct2 = temp_struct1;
  temp_struct3 = temp_struct2;
  return temp_struct3;
}

/* There should be no references to any of "temp_struct*"
   temporaries.  */
/* { dg-final { scan-tree-dump-times "temp_struct" 0 "optimized" { xfail *-*-* } } } */