1; RUN: opt -S -simplifycfg < %s -mtriple=x86_64-apple-darwin12.0.0 | FileCheck %s
2; rdar://17887153
3target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
4target triple = "x86_64-apple-darwin12.0.0"
5
6; When we have a covered lookup table, make sure we don't delete PHINodes that
7; are cached in PHIs.
8; CHECK-LABEL: @test
9; CHECK: entry:
10; CHECK-NEXT: sub i3 %arg, -4
11; CHECK-NEXT: zext i3 %switch.tableidx to i4
12; CHECK-NEXT: getelementptr inbounds [8 x i64], [8 x i64]* @switch.table, i32 0, i4 %switch.tableidx.zext
13; CHECK-NEXT: load i64, i64* %switch.gep
14; CHECK-NEXT: add i64
15; CHECK-NEXT: ret i64
16define i64 @test(i3 %arg) {
17entry:
18  switch i3 %arg, label %Default [
19    i3 -2, label %Label6
20    i3 1, label %Label1
21    i3 2, label %Label2
22    i3 3, label %Label3
23    i3 -4, label %Label4
24    i3 -3, label %Label5
25  ]
26
27Default:
28  %v1 = phi i64 [ 7, %Label6 ], [ 11, %Label5 ], [ 6, %Label4 ], [ 13, %Label3 ], [ 9, %Label2 ], [ 15, %Label1 ], [ 8, %entry ]
29  %v2 = phi i64 [ 0, %Label6 ], [ 0, %Label5 ], [ 0, %Label4 ], [ 0, %Label3 ], [ 0, %Label2 ], [ 0, %Label1 ], [ 0, %entry ]
30  %v3 = add i64 %v1, %v2
31  ret i64 %v3
32
33Label1:
34  br label %Default
35
36Label2:
37  br label %Default
38
39Label3:
40  br label %Default
41
42Label4:
43  br label %Default
44
45Label5:
46  br label %Default
47
48Label6:
49  br label %Default
50}
51