| ; RUN: opt < %s -instcombine -S | grep "phi i32" | count 2 |
| |
| define void @test() nounwind { |
| entry: |
| br label %bb |
| |
| bb: ; preds = %bb16, %entry |
| %i.0 = phi i32 [ 0, %entry ], [ %indvar.next, %somebb ] ; <i32> [#uses=1] |
| %x.0 = phi i32 [ 37, %entry ], [ %tmp17, %somebb ] ; <i32> [#uses=1] |
| %tmp = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] |
| %tmp1 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] |
| %tmp2 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=1] |
| %tmp3 = icmp eq i32 %tmp2, 0 ; <i1> [#uses=1] |
| br i1 %tmp3, label %bb7, label %bb5 |
| |
| bb5: ; preds = %bb |
| %tmp6 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] |
| br label %bb7 |
| |
| bb7: ; preds = %bb5, %bb |
| %tmp8 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] |
| %tmp9 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] |
| %tmp11 = icmp eq i32 %x.0, 37 ; <i1> [#uses=1] |
| br i1 %tmp11, label %bb14, label %bb16 |
| |
| bb14: ; preds = %bb7 |
| %tmp15 = tail call i32 (...)* @bar( ) nounwind ; <i32> [#uses=0] |
| br label %bb16 |
| |
| bb16: ; preds = %bb14, %bb7 |
| %tmp17 = tail call i32 (...)* @zap( ) nounwind ; <i32> [#uses=1] |
| %indvar.next = add i32 %i.0, 1 ; <i32> [#uses=2] |
| %exitcond = icmp eq i32 %indvar.next, 42 ; <i1> [#uses=1] |
| br i1 %exitcond, label %return, label %somebb |
| |
| somebb: |
| br label %bb |
| |
| return: ; preds = %bb16 |
| ret void |
| } |
| |
| declare i32 @bork(...) |
| |
| declare i32 @bar(...) |
| |
| declare i32 @zap(...) |
