we need to keep_alive memory as well for potential endless loops

[r21821]

diff --git a/ast2firm.c b/ast2firm.c
index 25e1aa7..b19c5ea 100644 (file)
--- a/ast2firm.c
+++ b/ast2firm.c
@@ -4226,6 +4226,8 @@ static void while_statement_to_firm(while_statement_t *statement)
                add_immBlock_pred(body_block, header_jmp);
 
                keep_alive(body_block);
+               set_cur_block(body_block);
+               keep_alive(get_store());
        } else {
                if (false_block == NULL) {
                        false_block = new_immBlock();
@@ -4369,6 +4371,7 @@ static void for_statement_to_firm(for_statement_t *statement)
                                            false_block);
        } else {
                keep_alive(header_block);
+               keep_alive(get_store());
                jmp = new_Jmp();
                add_immBlock_pred(body_block, jmp);
        }
@@ -4573,6 +4576,7 @@ static void label_to_firm(const label_statement_t *statement)
        }
 
        set_cur_block(block);
+       keep_alive(get_store());
        keep_alive(block);
 
        if (statement->statement != NULL) {
@@ -5507,4 +5511,6 @@ void translation_unit_to_firm(translation_unit_t *unit)
 
        scope_to_firm(&unit->scope);
        global_asm_to_firm(unit->global_asm);
+
+       current_ir_graph = NULL;
 }