xref: /llvm-project/polly/test/ScopDetect/error-block-always-executed.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed) 
1; RUN: opt %loadNPMPolly '-passes=print<polly-detect>' -disable-output < %s 2>&1 | FileCheck %s
2;
3; CHECK-NOT: Valid Region for Scop:
4
5target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
6target triple = "x86_64-unknown-linux-gnu"
7
8%struct.hoge = type { i32, i32, i32, i32 }
9
10; Function Attrs: nounwind uwtable
11define void @widget() #0 {
12bb13:
13  %tmp1 = alloca %struct.hoge, align 4
14  br i1 undef, label %bb14, label %bb19
15
16bb14:                                             ; preds = %bb13
17  %tmp = load i32, ptr undef, align 4, !tbaa !1
18  call void @quux() #2
19  br i1 false, label %bb15, label %bb18
20
21bb15:                                             ; preds = %bb14
22  %tmp16 = getelementptr inbounds %struct.hoge, ptr %tmp1, i64 0, i32 1
23  %tmp17 = getelementptr inbounds %struct.hoge, ptr %tmp1, i64 0, i32 2
24  br label %bb19
25
26bb18:                                             ; preds = %bb14
27  br label %bb19
28
29bb19:                                             ; preds = %bb18, %bb15, %bb13
30  %tmp20 = phi i32 [ undef, %bb13 ], [ %tmp, %bb15 ], [ %tmp, %bb18 ]
31  unreachable
32
33bb21:                                             ; preds = %bb8
34  unreachable
35
36bb22:                                             ; preds = %bb8, %bb8, %bb8, %bb8
37  br label %bb23
38
39bb23:                                             ; preds = %bb22
40  unreachable
41
42bb24:                                             ; preds = %bb8, %bb8
43  unreachable
44
45bb25:                                             ; preds = %bb2
46  unreachable
47}
48
49declare void @quux() #1
50
51attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
52attributes #1 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
53attributes #2 = { nounwind }
54
55!llvm.ident = !{!0}
56
57!0 = !{!"clang version 3.8.0 (trunk 252700) (llvm/trunk 252705)"}
58!1 = !{!2, !2, i64 0}
59!2 = !{!"int", !3, i64 0}
60!3 = !{!"omnipotent char", !4, i64 0}
61!4 = !{!"Simple C/C++ TBAA"}
62