extern void abort (void);
struct rtx_def;
typedef struct rtx_def *rtx;
struct rtvec_def;
typedef struct rtvec_def *rtvec;
union tree_node;
typedef union tree_node *tree;
struct tree_common
{
int code;
};
union tree_node
{
struct tree_common common;
};
extern tree current_function_decl;
struct cgraph_rtl_info
{
_Bool pure_function;
};
struct cgraph_rtl_info *cgraph_rtl_info (tree);
void
mark_constant_function (void)
{
rtx insn;
int nonlocal_memory_referenced;
if (current_function_decl->common.code != 42)
abort ();
cgraph_rtl_info (current_function_decl)->pure_function = 1;
}