; LLVM IR from Tencent-RoboticsX/jbdl :: src/jbdl/experimental/qpoases/src/QProblemB.ll (ZN7qpOASES9QProblemB5clearEv)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.qpOASES::QProblemB" = type { ptr, i32, ptr, ptr, ptr, ptr, %"class.qpOASES::Bounds", ptr, i32, ptr, ptr, double, i32, i32, i32, i32, double, i32, ptr, double, double, i32, [4 x i8], %"class.qpOASES::Options", %"class.qpOASES::Flipper", %"struct.qpOASES::TabularOutput" }
%"class.qpOASES::Bounds" = type { %"class.qpOASES::SubjectTo", %"class.qpOASES::Indexlist", %"class.qpOASES::Indexlist" }
%"class.qpOASES::SubjectTo" = type { ptr, i32, ptr, ptr, i32, i32 }
%"class.qpOASES::Indexlist" = type <{ ptr, ptr, i32, i32, i32, i32, i32, [4 x i8] }>
%"class.qpOASES::Options" = type <{ i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, double, double, double, double, double, double, double, double, double, double, double, i32, [4 x i8], double, i32, [4 x i8], double, i32, [4 x i8], double, double, double, double, i32, i32, i32, i32, i32, [4 x i8] }>
%"class.qpOASES::Flipper" = type { i32, i32, %"class.qpOASES::Bounds", %"class.qpOASES::Constraints", ptr, ptr, ptr }
%"class.qpOASES::Constraints" = type { %"class.qpOASES::SubjectTo", %"class.qpOASES::Indexlist", %"class.qpOASES::Indexlist" }
%"struct.qpOASES::TabularOutput" = type { i32, i32, i32, i32, i32, i32, i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZN7qpOASES9QProblemB5clearEv(ptr noundef nonnull align 8 dereferenceable(800) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 1
  %5 = load i32, ptr %4, align 8, !tbaa !9
  %6 = icmp eq i32 %5, 1
  br i1 %6, label %7, label %21

7:                                                ; preds = %1
  %8 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 2
  %9 = load ptr, ptr %8, align 8, !tbaa !25
  %10 = icmp ne ptr %9, null
  br i1 %10, label %11, label %21

11:                                               ; preds = %7
  %12 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 2
  %13 = load ptr, ptr %12, align 8, !tbaa !25
  %14 = icmp eq ptr %13, null
  br i1 %14, label %19, label %15

15:                                               ; preds = %11
  %16 = load ptr, ptr %13, align 8, !tbaa !26
  %17 = getelementptr inbounds ptr, ptr %16, i64 1
  %18 = load ptr, ptr %17, align 8
  call void %18(ptr noundef nonnull align 8 dereferenceable(8) %13) #2
  br label %19

19:                                               ; preds = %15, %11
  %20 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 2
  store ptr null, ptr %20, align 8, !tbaa !25
  br label %21

21:                                               ; preds = %19, %7, %1
  %22 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 3
  %23 = load ptr, ptr %22, align 8, !tbaa !28
  %24 = icmp ne ptr %23, null
  br i1 %24, label %25, label %32

25:                                               ; preds = %21
  %26 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 3
  %27 = load ptr, ptr %26, align 8, !tbaa !28
  %28 = icmp eq ptr %27, null
  br i1 %28, label %30, label %29

29:                                               ; preds = %25
  call void @_ZdaPv(ptr noundef %27) #3
  br label %30

30:                                               ; preds = %29, %25
  %31 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 3
  store ptr null, ptr %31, align 8, !tbaa !28
  br label %32

32:                                               ; preds = %30, %21
  %33 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 4
  %34 = load ptr, ptr %33, align 8, !tbaa !29
  %35 = icmp ne ptr %34, null
  br i1 %35, label %36, label %43

36:                                               ; preds = %32
  %37 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 4
  %38 = load ptr, ptr %37, align 8, !tbaa !29
  %39 = icmp eq ptr %38, null
  br i1 %39, label %41, label %40

40:                                               ; preds = %36
  call void @_ZdaPv(ptr noundef %38) #3
  br label %41

41:                                               ; preds = %40, %36
  %42 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 4
  store ptr null, ptr %42, align 8, !tbaa !29
  br label %43

43:                                               ; preds = %41, %32
  %44 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 5
  %45 = load ptr, ptr %44, align 8, !tbaa !30
  %46 = icmp ne ptr %45, null
  br i1 %46, label %47, label %54

47:                                               ; preds = %43
  %48 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 5
  %49 = load ptr, ptr %48, align 8, !tbaa !30
  %50 = icmp eq ptr %49, null
  br i1 %50, label %52, label %51

51:                                               ; preds = %47
  call void @_ZdaPv(ptr noundef %49) #3
  br label %52

52:                                               ; preds = %51, %47
  %53 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 5
  store ptr null, ptr %53, align 8, !tbaa !30
  br label %54

54:                                               ; preds = %52, %43
  %55 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 7
  %56 = load ptr, ptr %55, align 8, !tbaa !31
  %57 = icmp ne ptr %56, null
  br i1 %57, label %58, label %65

58:                                               ; preds = %54
  %59 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 7
  %60 = load ptr, ptr %59, align 8, !tbaa !31
  %61 = icmp eq ptr %60, null
  br i1 %61, label %63, label %62

62:                                               ; preds = %58
  call void @_ZdaPv(ptr noundef %60) #3
  br label %63

63:                                               ; preds = %62, %58
  %64 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 7
  store ptr null, ptr %64, align 8, !tbaa !31
  br label %65

65:                                               ; preds = %63, %54
  %66 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 9
  %67 = load ptr, ptr %66, align 8, !tbaa !32
  %68 = icmp ne ptr %67, null
  br i1 %68, label %69, label %76

69:                                               ; preds = %65
  %70 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 9
  %71 = load ptr, ptr %70, align 8, !tbaa !32
  %72 = icmp eq ptr %71, null
  br i1 %72, label %74, label %73

73:                                               ; preds = %69
  call void @_ZdaPv(ptr noundef %71) #3
  br label %74

74:                                               ; preds = %73, %69
  %75 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 9
  store ptr null, ptr %75, align 8, !tbaa !32
  br label %76

76:                                               ; preds = %74, %65
  %77 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 10
  %78 = load ptr, ptr %77, align 8, !tbaa !33
  %79 = icmp ne ptr %78, null
  br i1 %79, label %80, label %87

80:                                               ; preds = %76
  %81 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 10
  %82 = load ptr, ptr %81, align 8, !tbaa !33
  %83 = icmp eq ptr %82, null
  br i1 %83, label %85, label %84

84:                                               ; preds = %80
  call void @_ZdaPv(ptr noundef %82) #3
  br label %85

85:                                               ; preds = %84, %80
  %86 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 10
  store ptr null, ptr %86, align 8, !tbaa !33
  br label %87

87:                                               ; preds = %85, %76
  %88 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 18
  %89 = load ptr, ptr %88, align 8, !tbaa !34
  %90 = icmp ne ptr %89, null
  br i1 %90, label %91, label %98

91:                                               ; preds = %87
  %92 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 18
  %93 = load ptr, ptr %92, align 8, !tbaa !34
  %94 = icmp eq ptr %93, null
  br i1 %94, label %96, label %95

95:                                               ; preds = %91
  call void @_ZdaPv(ptr noundef %93) #3
  br label %96

96:                                               ; preds = %95, %91
  %97 = getelementptr inbounds %"class.qpOASES::QProblemB", ptr %3, i32 0, i32 18
  store ptr null, ptr %97, align 8, !tbaa !34
  br label %98

98:                                               ; preds = %96, %87
  ret i32 0
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #1

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nobuiltin nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nounwind }
attributes #3 = { builtin nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 8}
!10 = !{!"_ZTSN7qpOASES9QProblemBE", !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !12, i64 48, !6, i64 168, !11, i64 176, !6, i64 184, !6, i64 192, !16, i64 200, !17, i64 208, !11, i64 212, !11, i64 216, !18, i64 220, !16, i64 224, !14, i64 232, !6, i64 240, !16, i64 248, !16, i64 256, !14, i64 264, !19, i64 272, !22, i64 496, !24, i64 768}
!11 = !{!"_ZTSN7qpOASES11BooleanTypeE", !7, i64 0}
!12 = !{!"_ZTSN7qpOASES6BoundsE", !13, i64 0, !15, i64 40, !15, i64 80}
!13 = !{!"_ZTSN7qpOASES9SubjectToE", !14, i64 8, !6, i64 16, !6, i64 24, !11, i64 32, !11, i64 36}
!14 = !{!"int", !7, i64 0}
!15 = !{!"_ZTSN7qpOASES9IndexlistE", !6, i64 0, !6, i64 8, !14, i64 16, !14, i64 20, !14, i64 24, !14, i64 28, !14, i64 32}
!16 = !{!"double", !7, i64 0}
!17 = !{!"_ZTSN7qpOASES14QProblemStatusE", !7, i64 0}
!18 = !{!"_ZTSN7qpOASES11HessianTypeE", !7, i64 0}
!19 = !{!"_ZTSN7qpOASES7OptionsE", !20, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16, !11, i64 20, !11, i64 24, !14, i64 28, !14, i64 32, !11, i64 36, !16, i64 40, !16, i64 48, !16, i64 56, !16, i64 64, !16, i64 72, !16, i64 80, !16, i64 88, !16, i64 96, !16, i64 104, !16, i64 112, !16, i64 120, !21, i64 128, !16, i64 136, !14, i64 144, !16, i64 152, !14, i64 160, !16, i64 168, !16, i64 176, !16, i64 184, !16, i64 192, !11, i64 200, !11, i64 204, !14, i64 208, !14, i64 212, !14, i64 216}
!20 = !{!"_ZTSN7qpOASES10PrintLevelE", !7, i64 0}
!21 = !{!"_ZTSN7qpOASES15SubjectToStatusE", !7, i64 0}
!22 = !{!"_ZTSN7qpOASES7FlipperE", !14, i64 0, !14, i64 4, !12, i64 8, !23, i64 128, !6, i64 248, !6, i64 256, !6, i64 264}
!23 = !{!"_ZTSN7qpOASES11ConstraintsE", !13, i64 0, !15, i64 40, !15, i64 80}
!24 = !{!"_ZTSN7qpOASES13TabularOutputE", !14, i64 0, !14, i64 4, !14, i64 8, !14, i64 12, !14, i64 16, !14, i64 20, !14, i64 24, !14, i64 28}
!25 = !{!10, !6, i64 16}
!26 = !{!27, !27, i64 0}
!27 = !{!"vtable pointer", !8, i64 0}
!28 = !{!10, !6, i64 24}
!29 = !{!10, !6, i64 32}
!30 = !{!10, !6, i64 40}
!31 = !{!10, !6, i64 168}
!32 = !{!10, !6, i64 184}
!33 = !{!10, !6, i64 192}
!34 = !{!10, !6, i64 240}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZN7qpOASES9QProblemB5clearEv(ptr nocapture noundef nonnull align 8 dereferenceable(800) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = load i32, ptr %2, align 8, !tbaa !5
  %4 = icmp eq i32 %3, 1
  br i1 %4, label %5, label %12

5:                                                ; preds = %1
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = load ptr, ptr %6, align 8, !tbaa !24
  %.not = icmp eq ptr %7, null
  br i1 %.not, label %12, label %8

8:                                                ; preds = %5
  %9 = load ptr, ptr %7, align 8, !tbaa !25
  %10 = getelementptr inbounds i8, ptr %9, i64 8
  %11 = load ptr, ptr %10, align 8
  tail call void %11(ptr noundef nonnull align 8 dereferenceable(8) %7) #2
  store ptr null, ptr %6, align 8, !tbaa !24
  br label %12

12:                                               ; preds = %8, %5, %1
  %13 = getelementptr inbounds i8, ptr %0, i64 24
  %14 = load ptr, ptr %13, align 8, !tbaa !27
  %.not8 = icmp eq ptr %14, null
  br i1 %.not8, label %16, label %15

15:                                               ; preds = %12
  tail call void @_ZdaPv(ptr noundef nonnull %14) #3
  store ptr null, ptr %13, align 8, !tbaa !27
  br label %16

16:                                               ; preds = %15, %12
  %17 = getelementptr inbounds i8, ptr %0, i64 32
  %18 = load ptr, ptr %17, align 8, !tbaa !28
  %.not9 = icmp eq ptr %18, null
  br i1 %.not9, label %20, label %19

19:                                               ; preds = %16
  tail call void @_ZdaPv(ptr noundef nonnull %18) #3
  store ptr null, ptr %17, align 8, !tbaa !28
  br label %20

20:                                               ; preds = %19, %16
  %21 = getelementptr inbounds i8, ptr %0, i64 40
  %22 = load ptr, ptr %21, align 8, !tbaa !29
  %.not10 = icmp eq ptr %22, null
  br i1 %.not10, label %24, label %23

23:                                               ; preds = %20
  tail call void @_ZdaPv(ptr noundef nonnull %22) #3
  store ptr null, ptr %21, align 8, !tbaa !29
  br label %24

24:                                               ; preds = %23, %20
  %25 = getelementptr inbounds i8, ptr %0, i64 168
  %26 = load ptr, ptr %25, align 8, !tbaa !30
  %.not11 = icmp eq ptr %26, null
  br i1 %.not11, label %28, label %27

27:                                               ; preds = %24
  tail call void @_ZdaPv(ptr noundef nonnull %26) #3
  store ptr null, ptr %25, align 8, !tbaa !30
  br label %28

28:                                               ; preds = %27, %24
  %29 = getelementptr inbounds i8, ptr %0, i64 184
  %30 = load ptr, ptr %29, align 8, !tbaa !31
  %.not12 = icmp eq ptr %30, null
  br i1 %.not12, label %32, label %31

31:                                               ; preds = %28
  tail call void @_ZdaPv(ptr noundef nonnull %30) #3
  store ptr null, ptr %29, align 8, !tbaa !31
  br label %32

32:                                               ; preds = %31, %28
  %33 = getelementptr inbounds i8, ptr %0, i64 192
  %34 = load ptr, ptr %33, align 8, !tbaa !32
  %.not13 = icmp eq ptr %34, null
  br i1 %.not13, label %36, label %35

35:                                               ; preds = %32
  tail call void @_ZdaPv(ptr noundef nonnull %34) #3
  store ptr null, ptr %33, align 8, !tbaa !32
  br label %36

36:                                               ; preds = %35, %32
  %37 = getelementptr inbounds i8, ptr %0, i64 240
  %38 = load ptr, ptr %37, align 8, !tbaa !33
  %.not14 = icmp eq ptr %38, null
  br i1 %.not14, label %40, label %39

39:                                               ; preds = %36
  tail call void @_ZdaPv(ptr noundef nonnull %38) #3
  store ptr null, ptr %37, align 8, !tbaa !33
  br label %40

40:                                               ; preds = %39, %36
  ret i32 0
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nobuiltin nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nounwind }
attributes #3 = { builtin nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !7, i64 8}
!6 = !{!"_ZTSN7qpOASES9QProblemBE", !7, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40, !11, i64 48, !10, i64 168, !7, i64 176, !10, i64 184, !10, i64 192, !15, i64 200, !16, i64 208, !7, i64 212, !7, i64 216, !17, i64 220, !15, i64 224, !13, i64 232, !10, i64 240, !15, i64 248, !15, i64 256, !13, i64 264, !18, i64 272, !21, i64 496, !23, i64 768}
!7 = !{!"_ZTSN7qpOASES11BooleanTypeE", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"_ZTSN7qpOASES6BoundsE", !12, i64 0, !14, i64 40, !14, i64 80}
!12 = !{!"_ZTSN7qpOASES9SubjectToE", !13, i64 8, !10, i64 16, !10, i64 24, !7, i64 32, !7, i64 36}
!13 = !{!"int", !8, i64 0}
!14 = !{!"_ZTSN7qpOASES9IndexlistE", !10, i64 0, !10, i64 8, !13, i64 16, !13, i64 20, !13, i64 24, !13, i64 28, !13, i64 32}
!15 = !{!"double", !8, i64 0}
!16 = !{!"_ZTSN7qpOASES14QProblemStatusE", !8, i64 0}
!17 = !{!"_ZTSN7qpOASES11HessianTypeE", !8, i64 0}
!18 = !{!"_ZTSN7qpOASES7OptionsE", !19, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !7, i64 20, !7, i64 24, !13, i64 28, !13, i64 32, !7, i64 36, !15, i64 40, !15, i64 48, !15, i64 56, !15, i64 64, !15, i64 72, !15, i64 80, !15, i64 88, !15, i64 96, !15, i64 104, !15, i64 112, !15, i64 120, !20, i64 128, !15, i64 136, !13, i64 144, !15, i64 152, !13, i64 160, !15, i64 168, !15, i64 176, !15, i64 184, !15, i64 192, !7, i64 200, !7, i64 204, !13, i64 208, !13, i64 212, !13, i64 216}
!19 = !{!"_ZTSN7qpOASES10PrintLevelE", !8, i64 0}
!20 = !{!"_ZTSN7qpOASES15SubjectToStatusE", !8, i64 0}
!21 = !{!"_ZTSN7qpOASES7FlipperE", !13, i64 0, !13, i64 4, !11, i64 8, !22, i64 128, !10, i64 248, !10, i64 256, !10, i64 264}
!22 = !{!"_ZTSN7qpOASES11ConstraintsE", !12, i64 0, !14, i64 40, !14, i64 80}
!23 = !{!"_ZTSN7qpOASES13TabularOutputE", !13, i64 0, !13, i64 4, !13, i64 8, !13, i64 12, !13, i64 16, !13, i64 20, !13, i64 24, !13, i64 28}
!24 = !{!6, !10, i64 16}
!25 = !{!26, !26, i64 0}
!26 = !{!"vtable pointer", !9, i64 0}
!27 = !{!6, !10, i64 24}
!28 = !{!6, !10, i64 32}
!29 = !{!6, !10, i64 40}
!30 = !{!6, !10, i64 168}
!31 = !{!6, !10, i64 184}
!32 = !{!6, !10, i64 192}
!33 = !{!6, !10, i64 240}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass