1; RUN: llc -verify-machineinstrs -mcpu=i386 < %s
2target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
3target triple = "i386-pc-linux-gnu"
4
5; The bb.i basic block gets split while emitting the schedule because
6; -mcpu=i386 doesn't have CMOV.'
7;
8; That causes the PHI to be updated wrong because the jumptable data structure is remembering the original MBB.
9;
10; -cgp-critical-edge-splitting=0 prevents the edge to PHI from being split.
11
12@.str146 = external constant [4 x i8], align 1
13@.str706 = external constant [4 x i8], align 1
14@.str1189 = external constant [5 x i8], align 1
15
16declare i32 @memcmp(i8* nocapture, i8* nocapture, i32) nounwind readonly
17declare i32 @strlen(i8* nocapture) nounwind readonly
18
19define hidden zeroext i8 @f(i8* %this, i8* %Name.0, i32 %Name.1, i8* noalias %NameLoc, i8* %Operands) nounwind align 2 {
20bb.i:
21  %0 = icmp eq i8 undef, 0
22  %iftmp.285.0 = select i1 %0, i8* getelementptr inbounds ([5 x i8]* @.str1189, i32 0, i32 0), i8* getelementptr inbounds ([4 x i8]* @.str706, i32 0, i32 0)
23  %1 = call i32 @strlen(i8* %iftmp.285.0) nounwind readonly
24  switch i32 %Name.1, label %_ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit [
25    i32 3, label %bb1.i
26    i32 4, label %bb1.i1237
27    i32 5, label %bb1.i1266
28    i32 6, label %bb1.i1275
29    i32 2, label %bb1.i1434
30    i32 8, label %bb1.i1523
31    i32 7, label %bb1.i1537
32  ]
33
34bb1.i:                                            ; preds = %bb.i
35  unreachable
36
37bb1.i1237:                                        ; preds = %bb.i
38  br i1 undef, label %bb.i1820, label %bb1.i1241
39
40bb1.i1241:                                        ; preds = %bb1.i1237
41  unreachable
42
43bb1.i1266:                                        ; preds = %bb.i
44  unreachable
45
46bb1.i1275:                                        ; preds = %bb.i
47  unreachable
48
49bb1.i1434:                                        ; preds = %bb.i
50  unreachable
51
52bb1.i1523:                                        ; preds = %bb.i
53  unreachable
54
55bb1.i1537:                                        ; preds = %bb.i
56  unreachable
57
58bb.i1820:                                         ; preds = %bb1.i1237
59  br label %_ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit
60
61_ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit: ; preds = %bb.i1820, %bb.i
62  %PatchedName.0.0 = phi i8* [ undef, %bb.i1820 ], [ %Name.0, %bb.i ]
63  br i1 undef, label %bb141, label %_ZNK4llvm9StringRef10startswithES0_.exit
64
65_ZNK4llvm9StringRef10startswithES0_.exit:         ; preds = %_ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit
66  %2 = call i32 @memcmp(i8* %PatchedName.0.0, i8* getelementptr inbounds ([4 x i8]* @.str146, i32 0, i32 0), i32 3) nounwind readonly
67  unreachable
68
69bb141:                                            ; preds = %_ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit
70  unreachable
71}
72