| ; RUN: opt < %s -passes=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 %NodeBlock19 |
| |
| ;CHECK: NodeBlock19: ; preds = %entry |
| ;CHECK-NEXT: %Pivot20 = icmp slt i32 %tmp158, 10 |
| ;CHECK-NEXT: br i1 %Pivot20, label %NodeBlock5, label %NodeBlock17 |
| |
| ;CHECK: NodeBlock17: ; preds = %NodeBlock19 |
| ;CHECK-NEXT: %Pivot18 = icmp slt i32 %tmp158, 13 |
| ;CHECK-NEXT: br i1 %Pivot18, label %NodeBlock9, label %NodeBlock15 |
| |
| ;CHECK: NodeBlock15: ; preds = %NodeBlock17 |
| ;CHECK-NEXT: %Pivot16 = icmp slt i32 %tmp158, 14 |
| ;CHECK-NEXT: br i1 %Pivot16, label %bb330, label %NodeBlock13 |
| |
| ;CHECK: NodeBlock13: ; preds = %NodeBlock15 |
| ;CHECK-NEXT: %Pivot14 = icmp slt i32 %tmp158, 15 |
| ;CHECK-NEXT: br i1 %Pivot14, label %bb332, label %LeafBlock11 |
| |
| ;CHECK: LeafBlock11: ; preds = %NodeBlock13 |
| ;CHECK-NEXT: %SwitchLeaf12 = icmp eq i32 %tmp158, 15 |
| ;CHECK-NEXT: br i1 %SwitchLeaf12, label %bb334, label %bb336 |
| |
| ;CHECK: NodeBlock9: ; preds = %NodeBlock17 |
| ;CHECK-NEXT: %Pivot10 = icmp slt i32 %tmp158, 11 |
| ;CHECK-NEXT: br i1 %Pivot10, label %bb324, label %NodeBlock7 |
| |
| ;CHECK: NodeBlock7: ; preds = %NodeBlock9 |
| ;CHECK-NEXT: %Pivot8 = icmp slt i32 %tmp158, 12 |
| ;CHECK-NEXT: br i1 %Pivot8, label %bb326, label %bb328 |
| |
| ;CHECK: NodeBlock5: ; preds = %NodeBlock19 |
| ;CHECK-NEXT: %Pivot6 = icmp slt i32 %tmp158, 7 |
| ;CHECK-NEXT: br i1 %Pivot6, label %NodeBlock, label %NodeBlock3 |
| |
| ;CHECK: NodeBlock3: ; preds = %NodeBlock5 |
| ;CHECK-NEXT: %Pivot4 = icmp slt i32 %tmp158, 8 |
| ;CHECK-NEXT: br i1 %Pivot4, label %bb, label %NodeBlock1 |
| |
| ;CHECK: NodeBlock1: ; preds = %NodeBlock3 |
| ;CHECK-NEXT: %Pivot2 = icmp slt i32 %tmp158, 9 |
| ;CHECK-NEXT: br i1 %Pivot2, label %bb338, label %bb322 |
| |
| ;CHECK: NodeBlock: ; preds = %NodeBlock5 |
| ;CHECK-NEXT: %Pivot = icmp slt i32 %tmp158, 0 |
| ;CHECK-NEXT: br i1 %Pivot, label %LeafBlock, label %bb338 |
| |
| ;CHECK: LeafBlock: ; preds = %NodeBlock |
| ;CHECK-NEXT: %tmp158.off = add i32 %tmp158, 6 |
| ;CHECK-NEXT: %SwitchLeaf = icmp ule i32 %tmp158.off, 4 |
| ;CHECK-NEXT: br i1 %SwitchLeaf, label %bb338, label %bb336 |
| |
| define i32 @main(i32 %tmp158) { |
| entry: |
| |
| switch i32 %tmp158, label %bb336 [ |
| i32 -2, label %bb338 |
| i32 -3, label %bb338 |
| i32 -4, label %bb338 |
| i32 -5, label %bb338 |
| i32 -6, label %bb338 |
| i32 0, label %bb338 |
| i32 1, label %bb338 |
| i32 2, label %bb338 |
| i32 3, label %bb338 |
| i32 4, label %bb338 |
| i32 5, label %bb338 |
| i32 6, label %bb338 |
| i32 7, label %bb |
| i32 8, label %bb338 |
| i32 9, label %bb322 |
| i32 10, label %bb324 |
| i32 11, label %bb326 |
| i32 12, label %bb328 |
| i32 13, label %bb330 |
| i32 14, label %bb332 |
| i32 15, label %bb334 |
| ] |
| bb: |
| ret i32 2 |
| bb322: |
| ret i32 3 |
| bb324: |
| ret i32 4 |
| bb326: |
| ret i32 5 |
| bb328: |
| ret i32 6 |
| bb330: |
| ret i32 7 |
| bb332: |
| ret i32 8 |
| bb334: |
| ret i32 9 |
| bb336: |
| ret i32 10 |
| bb338: |
| ret i32 11 |
| } |