--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/polly/test/ScopDetect/error-block-referenced-from-scop.ll	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,54 @@
+; RUN: opt %loadPolly -polly-detect -analyze < %s \
+; RUN:     | FileCheck %s
+;
+; CHECK-NOT: Valid Region for Scop:
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Function Attrs: nounwind uwtable
+define void @hoge() #0 {
+bb:
+  br label %bb1
+
+bb1:                                              ; preds = %bb
+  br i1 undef, label %bb2, label %bb7
+
+bb2:                                              ; preds = %bb1
+  %tmp = load i32, i32* undef, align 8, !tbaa !1
+  %tmp3 = tail call i32 @widget() #2
+  br i1 false, label %bb4, label %bb5
+
+bb4:                                              ; preds = %bb2
+  br label %bb8
+
+bb5:                                              ; preds = %bb2
+  %tmp6 = sub i32 %tmp, %tmp3
+  br label %bb8
+
+bb7:                                              ; preds = %bb1
+  br label %bb8
+
+bb8:                                              ; preds = %bb7, %bb5, %bb4
+  ret void
+}
+
+; Function Attrs: inlinehint nounwind readonly uwtable
+declare i32 @widget() #1
+
+attributes #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" }
+attributes #1 = { inlinehint nounwind readonly 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" }
+attributes #2 = { nounwind readonly }
+
+!llvm.ident = !{!0}
+
+!0 = !{!"clang version 3.8.0 (trunk 252700) (llvm/trunk 252705)"}
+!1 = !{!2, !7, i64 8}
+!2 = !{!"cli_target_info", !3, i64 0, !6, i64 8, !4, i64 32}
+!3 = !{!"long", !4, i64 0}
+!4 = !{!"omnipotent char", !5, i64 0}
+!5 = !{!"Simple C/C++ TBAA"}
+!6 = !{!"cli_exe_info", !7, i64 0, !8, i64 4, !3, i64 8, !9, i64 16}
+!7 = !{!"int", !4, i64 0}
+!8 = !{!"short", !4, i64 0}
+!9 = !{!"any pointer", !4, i64 0}