static tree build_junk_fn(unsigned id)
{
char fnname[32] = {0};
tree decl, resdecl, initial, proto;
/* Func decl */
snprintf(fnname, 31, "__func%d", id);
proto = build_varargs_function_type_list(void_type_node, NULL_TREE);
decl = build_fn_decl(fnname, proto);
SET_DECL_ASSEMBLER_NAME(decl, get_identifier(fnname));
printf(TAG "Creating junk function: %s\n", fnname);
/* Result */
resdecl=build_decl(BUILTINS_LOCATION,RESULT_DECL,NULL_TREE,void_type_node);
DECL_ARTIFICIAL(resdecl) = 1;
DECL_CONTEXT(resdecl) = decl;
DECL_RESULT(decl) = resdecl;
/* Initial */
initial = make_node(BLOCK);
TREE_USED(initial) = 1;
DECL_INITIAL(decl) = initial;
DECL_UNINLINABLE(decl) = 1;
DECL_EXTERNAL(decl) = 0;
DECL_PRESERVE_P(decl) = 1;
/* Func decl */
TREE_USED(decl) = 1;
TREE_PUBLIC(decl) = 1;
TREE_STATIC(decl) = 1;
DECL_ARTIFICIAL(decl) = 1;
/* Make the function */
push_struct_function(decl);
/* DECL_SAVED_TREE(decl) = gen_junk(); */
cfun->function_end_locus = BUILTINS_LOCATION;
gimplify_function_tree(decl);
/* Update */
cgraph_add_new_function(decl, false);
cgraph_mark_needed_node(cgraph_node(decl));
current_function_decl = NULL_TREE;
pop_cfun();
return decl;
}
static void
build_function (tree fndecl, tree stmts, tree block)
{
DECL_INITIAL(fndecl) = block;
DECL_SAVED_TREE (fndecl) = stmts ;
tree resdecl = build_decl(input_location,RESULT_DECL, NULL_TREE, integer_type_node);
DECL_CONTEXT (resdecl) = fndecl;
DECL_RESULT(fndecl) = resdecl;
current_function_decl = fndecl;
if (DECL_STRUCT_FUNCTION(fndecl) == NULL)
push_struct_function(fndecl);
else
push_cfun(DECL_STRUCT_FUNCTION(fndecl));
cfun->function_end_locus = BUILTINS_LOCATION;
}
