1 ; RUN: opt %loadPolly -polly-print-detect -polly-codegen -polly-invariant-load-hoisting=true -disable-output < %s | FileCheck %s
3 ; This crashed at some point as the pointer returned by the call
4 ; to @__errno_location is invariant and defined in the SCoP but not
5 ; loaded. Therefore it is not hoisted and consequently not available
6 ; at the beginning of the SCoP where we would need it if we would try
7 ; to hoist %tmp. We don't try to hoist %tmp anymore but this test still
8 ; checks that this passes to code generation and produces valid code.
10 ; This SCoP is currently rejected because %call9 is not considered a valid
13 ; CHECK-NOT: Valid Region for Scop
15 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
17 ; Function Attrs: nounwind uwtable
18 define void @fileblobSetFilename() #0 {
20 br i1 undef, label %if.end, label %cleanup
22 if.end: ; preds = %entry
23 br i1 undef, label %land.lhs.true, label %if.end.18
25 land.lhs.true: ; preds = %if.end
26 %call9 = tail call ptr @__errno_location() #2
27 %tmp = load i32, ptr %call9, align 4, !tbaa !1
28 br i1 false, label %if.then.12, label %if.end.18
30 if.then.12: ; preds = %land.lhs.true
33 if.end.18: ; preds = %if.then.12, %land.lhs.true, %if.end
34 %fd.0 = phi i32 [ undef, %if.then.12 ], [ undef, %land.lhs.true ], [ undef, %if.end ]
35 br i1 undef, label %if.then.21, label %if.end.27
37 if.then.21: ; preds = %if.end.18
40 if.end.27: ; preds = %if.end.18
43 cleanup: ; preds = %if.end.27, %entry
47 ; Function Attrs: nounwind readnone
48 declare ptr @__errno_location() #1
50 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"="+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
51 attributes #1 = { nounwind readnone "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"="+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
52 attributes #2 = { nounwind readnone }
56 !0 = !{!"clang version 3.8.0 (trunk 250010) (llvm/trunk 250018)"}
58 !2 = !{!"int", !3, i64 0}
59 !3 = !{!"omnipotent char", !4, i64 0}
60 !4 = !{!"Simple C/C++ TBAA"}