1 files changed, 93 insertions, 4 deletions
diff --git a/test/Transforms/LowerSwitch/feature.ll b/test/Transforms/LowerSwitch/feature.ll
index cdfa0f3..cc77d3c 100644
--- a/test/Transforms/LowerSwitch/feature.ll
+++ b/test/Transforms/LowerSwitch/feature.ll
@@ -1,10 +1,99 @@
-; RUN: opt < %s -lowerswitch -S > %t
-; RUN: grep slt %t | count 10
-; RUN: grep ule %t | count 3
-; RUN: grep eq  %t | count 9
+; RUN: opt < %s -lowerswitch -S | FileCheck %s
+
+; We have switch on input.
+; On output we should got binary comparison tree. Check that all is fine.
+
+;CHECK:      entry:
+;CHECK-NEXT:   br label %NodeBlock37
+
+;CHECK:      NodeBlock37:                                      ; preds = %entry
+;CHECK-NEXT:   %Pivot38 = icmp ult i32 %tmp158, 11
+;CHECK-NEXT:   br i1 %Pivot38, label %NodeBlock13, label %NodeBlock35
+
+;CHECK:      NodeBlock35:                                      ; preds = %NodeBlock37
+;CHECK-NEXT:   %Pivot36 = icmp ult i32 %tmp158, 14
+;CHECK-NEXT:   br i1 %Pivot36, label %NodeBlock23, label %NodeBlock33
+
+;CHECK:      NodeBlock33:                                      ; preds = %NodeBlock35
+;CHECK-NEXT:   %Pivot34 = icmp ult i32 %tmp158, 15
+;CHECK-NEXT:   br i1 %Pivot34, label %LeafBlock25, label %NodeBlock31
+
+;CHECK:      NodeBlock31:                                      ; preds = %NodeBlock33
+;CHECK-NEXT:   %Pivot32 = icmp ult i32 %tmp158, -6
+;CHECK-NEXT:   br i1 %Pivot32, label %LeafBlock27, label %LeafBlock29
+
+;CHECK:      LeafBlock29:                                      ; preds = %NodeBlock31
+;CHECK-NEXT:   %tmp158.off = add i32 %tmp158, 6
+;CHECK-NEXT:   %SwitchLeaf30 = icmp ule i32 %tmp158.off, 4
+;CHECK-NEXT:   br i1 %SwitchLeaf30, label %bb338, label %NewDefault
+
+;CHECK:      LeafBlock27:                                      ; preds = %NodeBlock31
+;CHECK-NEXT:   %SwitchLeaf28 = icmp eq i32 %tmp158, 15
+;CHECK-NEXT:   br i1 %SwitchLeaf28, label %bb334, label %NewDefault
+
+;CHECK:      LeafBlock25:                                      ; preds = %NodeBlock33
+;CHECK-NEXT:   %SwitchLeaf26 = icmp eq i32 %tmp158, 14
+;CHECK-NEXT:   br i1 %SwitchLeaf26, label %bb332, label %NewDefault
+
+;CHECK:      NodeBlock23:                                      ; preds = %NodeBlock35
+;CHECK-NEXT:   %Pivot24 = icmp ult i32 %tmp158, 12
+;CHECK-NEXT:   br i1 %Pivot24, label %LeafBlock15, label %NodeBlock21
+
+;CHECK:      NodeBlock21:                                      ; preds = %NodeBlock23
+;CHECK-NEXT:   %Pivot22 = icmp ult i32 %tmp158, 13
+;CHECK-NEXT:   br i1 %Pivot22, label %LeafBlock17, label %LeafBlock19
+
+;CHECK:      LeafBlock19:                                      ; preds = %NodeBlock21
+;CHECK-NEXT:   %SwitchLeaf20 = icmp eq i32 %tmp158, 13
+;CHECK-NEXT:   br i1 %SwitchLeaf20, label %bb330, label %NewDefault
+
+;CHECK:      LeafBlock17:                                      ; preds = %NodeBlock21
+;CHECK-NEXT:   %SwitchLeaf18 = icmp eq i32 %tmp158, 12
+;CHECK-NEXT:   br i1 %SwitchLeaf18, label %bb328, label %NewDefault
+
+;CHECK:      LeafBlock15:                                      ; preds = %NodeBlock23
+;CHECK-NEXT:   %SwitchLeaf16 = icmp eq i32 %tmp158, 11
+;CHECK-NEXT:   br i1 %SwitchLeaf16, label %bb326, label %NewDefault
+
+;CHECK:      NodeBlock13:                                      ; preds = %NodeBlock37
+;CHECK-NEXT:   %Pivot14 = icmp ult i32 %tmp158, 8
+;CHECK-NEXT:   br i1 %Pivot14, label %NodeBlock, label %NodeBlock11
+
+;CHECK:      NodeBlock11:                                      ; preds = %NodeBlock13
+;CHECK-NEXT:   %Pivot12 = icmp ult i32 %tmp158, 9
+;CHECK-NEXT:   br i1 %Pivot12, label %LeafBlock3, label %NodeBlock9
+
+;CHECK:      NodeBlock9:                                       ; preds = %NodeBlock11
+;CHECK-NEXT:   %Pivot10 = icmp ult i32 %tmp158, 10
+;CHECK-NEXT:   br i1 %Pivot10, label %LeafBlock5, label %LeafBlock7
+
+;CHECK:      LeafBlock7:                                       ; preds = %NodeBlock9
+;CHECK-NEXT:   %SwitchLeaf8 = icmp eq i32 %tmp158, 10
+;CHECK-NEXT:   br i1 %SwitchLeaf8, label %bb324, label %NewDefault
+
+;CHECK:      LeafBlock5:                                       ; preds = %NodeBlock9
+;CHECK-NEXT:   %SwitchLeaf6 = icmp eq i32 %tmp158, 9
+;CHECK-NEXT:   br i1 %SwitchLeaf6, label %bb322, label %NewDefault
+
+;CHECK:      LeafBlock3:                                       ; preds = %NodeBlock11
+;CHECK-NEXT:   %SwitchLeaf4 = icmp eq i32 %tmp158, 8
+;CHECK-NEXT:   br i1 %SwitchLeaf4, label %bb338, label %NewDefault
+
+;CHECK:      NodeBlock:                                        ; preds = %NodeBlock13
+;CHECK-NEXT:   %Pivot = icmp ult i32 %tmp158, 7
+;CHECK-NEXT:   br i1 %Pivot, label %LeafBlock, label %LeafBlock1
+
+;CHECK:      LeafBlock1:                                       ; preds = %NodeBlock
+;CHECK-NEXT:   %SwitchLeaf2 = icmp eq i32 %tmp158, 7
+;CHECK-NEXT:   br i1 %SwitchLeaf2, label %bb, label %NewDefault
+
+;CHECK:      LeafBlock:                                        ; preds = %NodeBlock
+;CHECK-NEXT:   %SwitchLeaf = icmp ule i32 %tmp158, 6
+;CHECK-NEXT:   br i1 %SwitchLeaf, label %bb338, label %NewDefault
 
 define i32 @main(i32 %tmp158) {
 entry:
+
         switch i32 %tmp158, label %bb336 [
                  i32 -2, label %bb338
                  i32 -3, label %bb338