ast2firm: Factorise code to convert a value to its storage type.

[cparser] / jump_target.c

diff --git a/jump_target.c b/jump_target.c
index c5991d4..04d90c5 100644 (file)
--- a/jump_target.c
+++ b/jump_target.c
@@ -46,15 +46,20 @@ ir_node *enter_jump_target(jump_target *const tgt)
        return block;
 }
 
-ir_node *get_target_block(jump_target *const tgt)
+void enter_immature_jump_target(jump_target *const tgt)
 {
-       if (!tgt->block) {
-               tgt->block = new_immBlock();
+       ir_node *jmp;
+       ir_node *block = tgt->block;
+       if (!block) {
+               /* Avoid unreachable loops by adding a Bad entry. */
+               jmp = new_Bad(mode_X);
+               goto new_block;
        } else if (tgt->first) {
-               ir_node *const jmp = new_r_Jmp(tgt->block);
-               tgt->block = new_immBlock();
                tgt->first = false;
-               add_immBlock_pred(tgt->block, jmp);
+               jmp = new_r_Jmp(block);
+new_block:
+               tgt->block = block = new_immBlock();
+               add_immBlock_pred(block, jmp);
        }
-       return tgt->block;
+       set_cur_block(block);
 }