1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -simplifycfg -switch-to-lookup < %s -mtriple=x86_64-apple-darwin12.0.0 | FileCheck %s
3; RUN: opt -S -passes='simplify-cfg<switch-to-lookup>' < %s -mtriple=x86_64-apple-darwin12.0.0 | FileCheck %s
4
5; rdar://17735071
6target 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"
7target triple = "x86_64-apple-darwin12.0.0"
8
9define i64 @_TFO6reduce1E5toRawfS0_FT_Si(i2) {
10; CHECK-LABEL: @_TFO6reduce1E5toRawfS0_FT_Si(
11; CHECK-NEXT:  entry:
12; CHECK-NEXT:    [[SWITCH_TABLEIDX:%.*]] = sub i2 [[TMP0:%.*]], -2
13; CHECK-NEXT:    [[SWITCH_TABLEIDX_ZEXT:%.*]] = zext i2 [[SWITCH_TABLEIDX]] to i3
14; CHECK-NEXT:    [[SWITCH_GEP:%.*]] = getelementptr inbounds [4 x i64], [4 x i64]* @switch.table._TFO6reduce1E5toRawfS0_FT_Si, i32 0, i3 [[SWITCH_TABLEIDX_ZEXT]]
15; CHECK-NEXT:    [[SWITCH_LOAD:%.*]] = load i64, i64* [[SWITCH_GEP]]
16; CHECK-NEXT:    ret i64 [[SWITCH_LOAD]]
17;
18entry:
19  switch i2 %0, label %1 [
20  i2 0, label %2
21  i2 1, label %3
22  i2 -2, label %4
23  i2 -1, label %5
24  ]
25
26; <label>:1                                       ; preds = %entry
27  unreachable
28
29; <label>:2                                       ; preds = %2
30  br label %6
31
32; <label>:3                                       ; preds = %4
33  br label %6
34
35; <label>:4                                       ; preds = %6
36  br label %6
37
38; <label>:5                                       ; preds = %8
39  br label %6
40
41; <label>:6                                      ; preds = %3, %5, %7, %9
42  %7 = phi i64 [ 3, %5 ], [ 2, %4 ], [ 1, %3 ], [ 0, %2 ]
43  ret i64 %7
44}
45