| ; RUN: opt < %s -mem2reg -disable-output |
| ; PR670 |
| |
| define void @printk(i32, ...) { |
| entry: |
| %flags = alloca i32 ; <i32*> [#uses=2] |
| br i1 false, label %then.0, label %endif.0 |
| then.0: ; preds = %entry |
| br label %endif.0 |
| endif.0: ; preds = %then.0, %entry |
| store i32 0, i32* %flags |
| br label %loopentry |
| loopentry: ; preds = %endif.3, %endif.0 |
| br i1 false, label %no_exit, label %loopexit |
| no_exit: ; preds = %loopentry |
| br i1 false, label %then.1, label %endif.1 |
| then.1: ; preds = %no_exit |
| br i1 false, label %shortcirc_done.0, label %shortcirc_next.0 |
| shortcirc_next.0: ; preds = %then.1 |
| br label %shortcirc_done.0 |
| shortcirc_done.0: ; preds = %shortcirc_next.0, %then.1 |
| br i1 false, label %shortcirc_done.1, label %shortcirc_next.1 |
| shortcirc_next.1: ; preds = %shortcirc_done.0 |
| br label %shortcirc_done.1 |
| shortcirc_done.1: ; preds = %shortcirc_next.1, %shortcirc_done.0 |
| br i1 false, label %shortcirc_done.2, label %shortcirc_next.2 |
| shortcirc_next.2: ; preds = %shortcirc_done.1 |
| br label %shortcirc_done.2 |
| shortcirc_done.2: ; preds = %shortcirc_next.2, %shortcirc_done.1 |
| br i1 false, label %then.2, label %endif.2 |
| then.2: ; preds = %shortcirc_done.2 |
| br label %endif.2 |
| endif.2: ; preds = %then.2, %shortcirc_done.2 |
| br label %endif.1 |
| endif.1: ; preds = %endif.2, %no_exit |
| br i1 false, label %then.3, label %endif.3 |
| then.3: ; preds = %endif.1 |
| br label %endif.3 |
| endif.3: ; preds = %then.3, %endif.1 |
| br label %loopentry |
| loopexit: ; preds = %loopentry |
| br label %endif.4 |
| then.4: ; No predecessors! |
| %tmp.61 = load i32* %flags ; <i32> [#uses=0] |
| br label %out |
| dead_block_after_goto: ; No predecessors! |
| br label %endif.4 |
| endif.4: ; preds = %dead_block_after_goto, %loopexit |
| br i1 false, label %then.5, label %else |
| then.5: ; preds = %endif.4 |
| br label %endif.5 |
| else: ; preds = %endif.4 |
| br label %endif.5 |
| endif.5: ; preds = %else, %then.5 |
| br label %out |
| out: ; preds = %endif.5, %then.4 |
| br label %return |
| after_ret: ; No predecessors! |
| br label %return |
| return: ; preds = %after_ret, %out |
| ret void |
| } |
