feature.ll
3.61 KB
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; 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 %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 %NewDefault
;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 %NewDefault
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
}