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使用yacc和lex编写的cmm语言的词法分析和语法分析程序.

lt_expr 	le_expr 	gt_expr 
ge_expr 	eq_expr 	ne_expr 
unordered_expr 	ordered_expr 	unlt_expr 
unle_expr 	ungt_expr 	unge_expr 
uneq_expr 	fix_trunc_expr 	fix_ceil_expr 
fix_floor_expr 	fix_round_expr 	float_expr 
negate_expr 	abs_expr 	ffs_expr 
bit_not_expr 	convert_expr 	nop_expr 
non_lvalue_expr 	view_convert_expr 	conj_expr 
realpart_expr 	imagpart_expr 	sizeof_expr 
alignof_expr 	plus_expr 	minus_expr 
mult_expr 	trunc_div_expr 	ceil_div_expr 
floor_div_expr 	round_div_expr 	trunc_mod_expr 
ceil_mod_expr 	floor_mod_expr 	round_mod_expr 
rdiv_expr 	exact_div_expr 	min_expr 
max_expr 	lshift_expr 	rshift_expr 
lrotate_expr 	rrotate_expr 	bit_ior_expr 
bit_xor_expr 	bit_and_expr 	bit_andtc_expr 
complex_expr 	block 	integer_cst 
real_cst 	complex_cst 	vector_cst 
string_cst 	function_decl 	label_decl 
const_decl 	type_decl 	var_decl 
parm_decl 	result_decl 	field_decl 
namespace_decl 	compound_expr 	modify_expr 
init_expr 	target_expr 	cond_expr 
bind_expr 	call_expr 	with_cleanup_expr 
cleanup_point_expr 	with_record_expr 	truth_andif_expr 
truth_orif_expr 	truth_and_expr 	truth_or_expr 
truth_xor_expr 	truth_not_expr 	save_expr 
unsave_expr 	rtl_expr 	addr_expr 
reference_expr 	entry_value_expr 	fdesc_expr 
predecrement_expr 	preincrement_expr 	postdecrement_expr 
postincrement_expr 	va_arg_expr 	goto_subroutine 
labeled_block_expr 	expr_with_file_location 	exit_block_expr 
arrow_expr 	expr_stmt 	compound_stmt 
decl_stmt 	if_stmt 	return_stmt 
goto_stmt 	label_stmt 	asm_stmt 
scope_stmt 	file_stmt 	case_label 
stmt_expr 	compound_literal_expr 	cleanup_stmt 
component_ref 	bit_field_ref 	indirect_ref 
array_ref 	array_range_ref 	label_expr 
goto_expr 	return_expr 	exit_expr 
void_type 	integer_type 	real_type 
enumeral_type 	pointer_type 	offset_type 
reference_type 	array_type 	record_type 
union_type 	qual_union_type 	function_type 
error_mark 	identifier_node 	tree_list 
tree_vec 	placeholder_expr 	srcloc