Remove the unused STATEMENT_LOCAL_LABEL/struct local_label_statement_t. It never...

[cparser] / ast2firm.c

diff --git a/ast2firm.c b/ast2firm.c
index 79e5eb3..c30463c 100644 (file)
--- a/ast2firm.c
+++ b/ast2firm.c
@@ -2225,10 +2225,12 @@ static ir_node *produce_condition_result(const expression_t *expression,
        ir_node *cur_block = get_cur_block();
 
        ir_node *one_block = new_immBlock();
+       set_cur_block(one_block);
        ir_node *one       = new_Const(get_mode_one(mode));
        ir_node *jmp_one   = new_d_Jmp(dbgi);
 
        ir_node *zero_block = new_immBlock();
+       set_cur_block(zero_block);
        ir_node *zero       = new_Const(get_mode_null(mode));
        ir_node *jmp_zero   = new_d_Jmp(dbgi);
 
@@ -2729,6 +2731,7 @@ static ir_node *conditional_to_firm(const conditional_expression_t *expression)
 
        /* create the true block */
        ir_node *true_block  = new_immBlock();
+       set_cur_block(true_block);
 
        ir_node *true_val = expression->true_expression != NULL ?
                expression_to_firm(expression->true_expression) : NULL;
@@ -2736,6 +2739,7 @@ static ir_node *conditional_to_firm(const conditional_expression_t *expression)
 
        /* create the false block */
        ir_node *false_block = new_immBlock();
+       set_cur_block(false_block);
 
        ir_node *false_val = expression_to_firm(expression->false_expression);
        ir_node *false_jmp = new_Jmp();
@@ -3057,9 +3061,7 @@ static ir_node *get_label_block(label_t *label)
        ir_graph *rem    = current_ir_graph;
        current_ir_graph = current_function;
 
-       ir_node *old_cur_block = get_cur_block();
-       ir_node *block         = new_immBlock();
-       set_cur_block(old_cur_block);
+       ir_node *block = new_immBlock();
 
        label->block = block;
 
@@ -3269,9 +3271,7 @@ static ir_node *create_condition_evaluation(const expression_t *expression,
        case EXPR_BINARY_LOGICAL_AND: {
                const binary_expression_t *binary_expression = &expression->binary;
 
-               ir_node *cur_block   = get_cur_block();
                ir_node *extra_block = new_immBlock();
-               set_cur_block(cur_block);
                create_condition_evaluation(binary_expression->left, extra_block,
                                            false_block);
                mature_immBlock(extra_block);
@@ -3283,9 +3283,7 @@ static ir_node *create_condition_evaluation(const expression_t *expression,
        case EXPR_BINARY_LOGICAL_OR: {
                const binary_expression_t *binary_expression = &expression->binary;
 
-               ir_node *cur_block   = get_cur_block();
                ir_node *extra_block = new_immBlock();
-               set_cur_block(cur_block);
                create_condition_evaluation(binary_expression->left, true_block,
                                            extra_block);
                mature_immBlock(extra_block);
@@ -4350,6 +4348,7 @@ static void if_statement_to_firm(if_statement_t *statement)
        ir_node *true_block = NULL;
        if (statement->true_statement != NULL) {
                true_block = new_immBlock();
+               set_cur_block(true_block);
                statement_to_firm(statement->true_statement);
                if (get_cur_block() != NULL) {
                        ir_node *jmp = new_Jmp();
@@ -4363,6 +4362,7 @@ static void if_statement_to_firm(if_statement_t *statement)
        ir_node *false_block = NULL;
        if (statement->false_statement != NULL) {
                false_block = new_immBlock();
+               set_cur_block(false_block);
 
                statement_to_firm(statement->false_statement);
                if (get_cur_block() != NULL) {
@@ -4420,6 +4420,7 @@ static void while_statement_to_firm(while_statement_t *statement)
        break_label                 = NULL;
 
        ir_node *body_block = new_immBlock();
+       set_cur_block(body_block);
        statement_to_firm(statement->body);
        ir_node *false_block = break_label;
 
@@ -4484,6 +4485,7 @@ static void do_while_statement_to_firm(do_while_statement_t *statement)
        continue_label              = header_block;
        break_label                 = NULL;
 
+       set_cur_block(body_block);
        statement_to_firm(statement->body);
        ir_node *false_block = break_label;
 
@@ -4544,6 +4546,7 @@ static void for_statement_to_firm(for_statement_t *statement)
 
        /* create the step block */
        ir_node *const step_block = new_immBlock();
+       set_cur_block(step_block);
        if (statement->step != NULL) {
                expression_to_firm(statement->step);
        }
@@ -4551,6 +4554,7 @@ static void for_statement_to_firm(for_statement_t *statement)
 
        /* create the header block */
        ir_node *const header_block = new_immBlock();
+       set_cur_block(header_block);
        if (jmp != NULL) {
                add_immBlock_pred(header_block, jmp);
        }
@@ -4568,6 +4572,7 @@ static void for_statement_to_firm(for_statement_t *statement)
                break_label    = false_block;
 
                body_block = new_immBlock();
+               set_cur_block(body_block);
                statement_to_firm(statement->body);
 
                assert(continue_label == step_block);
@@ -4620,9 +4625,7 @@ static void create_jump_statement(const statement_t *statement,
 static ir_node *get_break_label(void)
 {
        if (break_label == NULL) {
-               ir_node *cur_block = get_cur_block();
                break_label = new_immBlock();
-               set_cur_block(cur_block);
        }
        return break_label;
 }
@@ -4736,10 +4739,9 @@ static void case_label_to_firm(const case_label_statement_t *statement)
        ir_node *const fallthrough = (get_cur_block() == NULL ? NULL : new_Jmp());
 
        ir_node *proj;
-       ir_node *old_block = get_nodes_block(current_switch_cond);
        ir_node *block     = new_immBlock();
 
-       set_cur_block(old_block);
+       set_cur_block(get_nodes_block(current_switch_cond));
        if (statement->expression != NULL) {
                long pn     = statement->first_case;
                long end_pn = statement->last_case;
@@ -5113,10 +5115,6 @@ static void statement_to_firm(statement_t *statement)
        case STATEMENT_LABEL:
                label_to_firm(&statement->label);
                return;
-       case STATEMENT_LOCAL_LABEL:
-               /* local labels transform the semantics of labels while parsing
-                * they don't need any special treatment here */
-               return;
        case STATEMENT_GOTO:
                goto_to_firm(&statement->gotos);
                return;
@@ -5254,6 +5252,10 @@ static void initialize_function_parameters(entity_t *entity)
  */
 static void handle_decl_modifier_irg(ir_graph_ptr irg, decl_modifiers_t decl_modifiers)
 {
+       if (decl_modifiers & DM_RETURNS_TWICE) {
+               /* TRUE if the declaration includes __attribute__((returns_twice)) */
+               set_irg_additional_property(irg, mtp_property_returns_twice);
+       }
        if (decl_modifiers & DM_NORETURN) {
                /* TRUE if the declaration includes the Microsoft
                   __declspec(noreturn) specifier. */