diff options
Diffstat (limited to 'test/Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll')
| -rw-r--r-- | test/Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/test/Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll b/test/Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll new file mode 100644 index 0000000..3ba8d18 --- /dev/null +++ b/test/Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll @@ -0,0 +1,145 @@ +; RUN: opt < %s -lcssa -disable-output -verify-dom-info -verify-loop-info +; PR977 +; END. +declare i32 @opost_block() + +define void @write_chan() { +entry: + br i1 false, label %shortcirc_next.0, label %shortcirc_done.0 +shortcirc_next.0: ; preds = %entry + br label %shortcirc_done.0 +shortcirc_done.0: ; preds = %shortcirc_next.0, %entry + br i1 false, label %shortcirc_next.1, label %shortcirc_done.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 %then.0, label %endif.0 +then.0: ; preds = %shortcirc_done.1 + br i1 false, label %then.1, label %endif.1 +then.1: ; preds = %then.0 + br label %return +after_ret.0: ; No predecessors! + br label %endif.1 +endif.1: ; preds = %after_ret.0, %then.0 + br label %endif.0 +endif.0: ; preds = %endif.1, %shortcirc_done.1 + br label %loopentry.0 +loopentry.0: ; preds = %endif.12, %endif.0 + br i1 false, label %then.2, label %endif.2 +then.2: ; preds = %loopentry.0 + br label %loopexit.0 +dead_block_after_break.0: ; No predecessors! + br label %endif.2 +endif.2: ; preds = %dead_block_after_break.0, %loopentry.0 + br i1 false, label %shortcirc_done.2, label %shortcirc_next.2 +shortcirc_next.2: ; preds = %endif.2 + br i1 false, label %shortcirc_next.3, label %shortcirc_done.3 +shortcirc_next.3: ; preds = %shortcirc_next.2 + br label %shortcirc_done.3 +shortcirc_done.3: ; preds = %shortcirc_next.3, %shortcirc_next.2 + br label %shortcirc_done.2 +shortcirc_done.2: ; preds = %shortcirc_done.3, %endif.2 + br i1 false, label %then.3, label %endif.3 +then.3: ; preds = %shortcirc_done.2 + br label %loopexit.0 +dead_block_after_break.1: ; No predecessors! + br label %endif.3 +endif.3: ; preds = %dead_block_after_break.1, %shortcirc_done.2 + br i1 false, label %shortcirc_next.4, label %shortcirc_done.4 +shortcirc_next.4: ; preds = %endif.3 + br label %shortcirc_done.4 +shortcirc_done.4: ; preds = %shortcirc_next.4, %endif.3 + br i1 false, label %then.4, label %else +then.4: ; preds = %shortcirc_done.4 + br label %loopentry.1 +loopentry.1: ; preds = %endif.8, %then.4 + br i1 false, label %no_exit, label %loopexit.1 +no_exit: ; preds = %loopentry.1 + %tmp.94 = call i32 @opost_block( ) ; <i32> [#uses=1] + br i1 false, label %then.5, label %endif.5 +then.5: ; preds = %no_exit + br i1 false, label %then.6, label %endif.6 +then.6: ; preds = %then.5 + br label %loopexit.1 +dead_block_after_break.2: ; No predecessors! + br label %endif.6 +endif.6: ; preds = %dead_block_after_break.2, %then.5 + br label %break_out +dead_block_after_goto.0: ; No predecessors! + br label %endif.5 +endif.5: ; preds = %dead_block_after_goto.0, %no_exit + br i1 false, label %then.7, label %endif.7 +then.7: ; preds = %endif.5 + br label %loopexit.1 +dead_block_after_break.3: ; No predecessors! + br label %endif.7 +endif.7: ; preds = %dead_block_after_break.3, %endif.5 + switch i32 1, label %switchexit [ + i32 4, label %label.2 + i32 2, label %label.1 + i32 1, label %label.0 + ] +label.0: ; preds = %endif.7 + br label %switchexit +dead_block_after_break.4: ; No predecessors! + br label %label.1 +label.1: ; preds = %dead_block_after_break.4, %endif.7 + br label %switchexit +dead_block_after_break.5: ; No predecessors! + br label %label.2 +label.2: ; preds = %dead_block_after_break.5, %endif.7 + br label %switchexit +dead_block_after_break.6: ; No predecessors! + br label %switchexit +switchexit: ; preds = %dead_block_after_break.6, %label.2, %label.1, %label.0, %endif.7 + br i1 false, label %then.8, label %endif.8 +then.8: ; preds = %switchexit + br label %loopexit.1 +dead_block_after_break.7: ; No predecessors! + br label %endif.8 +endif.8: ; preds = %dead_block_after_break.7, %switchexit + br label %loopentry.1 +loopexit.1: ; preds = %then.8, %then.7, %then.6, %loopentry.1 + br i1 false, label %then.9, label %endif.9 +then.9: ; preds = %loopexit.1 + br label %endif.9 +endif.9: ; preds = %then.9, %loopexit.1 + br label %endif.4 +else: ; preds = %shortcirc_done.4 + br i1 false, label %then.10, label %endif.10 +then.10: ; preds = %else + br label %break_out +dead_block_after_goto.1: ; No predecessors! + br label %endif.10 +endif.10: ; preds = %dead_block_after_goto.1, %else + br label %endif.4 +endif.4: ; preds = %endif.10, %endif.9 + br i1 false, label %then.11, label %endif.11 +then.11: ; preds = %endif.4 + br label %loopexit.0 +dead_block_after_break.8: ; No predecessors! + br label %endif.11 +endif.11: ; preds = %dead_block_after_break.8, %endif.4 + br i1 false, label %then.12, label %endif.12 +then.12: ; preds = %endif.11 + br label %loopexit.0 +dead_block_after_break.9: ; No predecessors! + br label %endif.12 +endif.12: ; preds = %dead_block_after_break.9, %endif.11 + br label %loopentry.0 +loopexit.0: ; preds = %then.12, %then.11, %then.3, %then.2 + br label %break_out +break_out: ; preds = %loopexit.0, %then.10, %endif.6 + %retval.3 = phi i32 [ 0, %loopexit.0 ], [ %tmp.94, %endif.6 ], [ 0, %then.10 ] ; <i32> [#uses=0] + br i1 false, label %cond_true, label %cond_false +cond_true: ; preds = %break_out + br label %cond_continue +cond_false: ; preds = %break_out + br label %cond_continue +cond_continue: ; preds = %cond_false, %cond_true + br label %return +after_ret.1: ; No predecessors! + br label %return +return: ; preds = %after_ret.1, %cond_continue, %then.1 + ret void +} |