; LLVM IR from aws/s2n-tls :: tls/extensions (s2n_supported_versions)

; 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"

%struct.s2n_debug_info = type { ptr, ptr }
%struct.s2n_result = type { i32 }
%struct.s2n_security_policy = type { i8, ptr, ptr, ptr, ptr, ptr, ptr, i8, [2 x i8] }

@.str = external hidden unnamed_addr constant [109 x i8], align 1
@_s2n_debug_info = external thread_local global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local global i32, align 4
@.str.1 = external hidden unnamed_addr constant [109 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_connection_get_minimum_supported_version(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca %struct.s2n_result, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  br label %8

8:                                                ; preds = %2
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %43, label %11

11:                                               ; preds = %8
  br label %12

12:                                               ; preds = %11
  br label %13

13:                                               ; preds = %12
  %14 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %15 = getelementptr inbounds %struct.s2n_debug_info, ptr %14, i32 0, i32 0
  store ptr @.str, ptr %15, align 8, !tbaa !9
  %16 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %17 = getelementptr inbounds %struct.s2n_debug_info, ptr %16, i32 0, i32 0
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = getelementptr inbounds i8, ptr %18, i64 21
  %20 = call ptr @strrchr(ptr noundef %19, i32 noundef 47) #5
  %21 = icmp ne ptr %20, null
  br i1 %21, label %22, label %29

22:                                               ; preds = %13
  %23 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %24 = getelementptr inbounds %struct.s2n_debug_info, ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !9
  %26 = getelementptr inbounds i8, ptr %25, i64 21
  %27 = call ptr @strrchr(ptr noundef %26, i32 noundef 47) #5
  %28 = getelementptr inbounds i8, ptr %27, i64 1
  br label %34

29:                                               ; preds = %13
  %30 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %31 = getelementptr inbounds %struct.s2n_debug_info, ptr %30, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8, !tbaa !9
  %33 = getelementptr inbounds i8, ptr %32, i64 21
  br label %34

34:                                               ; preds = %29, %22
  %35 = phi ptr [ %28, %22 ], [ %33, %29 ]
  %36 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %37 = getelementptr inbounds %struct.s2n_debug_info, ptr %36, i32 0, i32 1
  store ptr %35, ptr %37, align 8, !tbaa !11
  %38 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %38, align 4, !tbaa !12
  %39 = call i32 @s2n_calculate_stacktrace()
  br label %40

40:                                               ; preds = %34
  %41 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  store i32 -1, ptr %41, align 4, !tbaa !14
  br label %117

42:                                               ; No predecessors!
  br label %43

43:                                               ; preds = %42, %8
  br label %44

44:                                               ; preds = %43
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  store ptr null, ptr %6, align 8, !tbaa !5
  br label %45

45:                                               ; preds = %44
  %46 = load ptr, ptr %4, align 8, !tbaa !5
  %47 = call i32 @s2n_connection_get_security_policy(ptr noundef %46, ptr noundef %6)
  %48 = icmp sgt i32 %47, -1
  br i1 %48, label %51, label %49

49:                                               ; preds = %45
  %50 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  store i32 -1, ptr %50, align 4, !tbaa !14
  store i32 1, ptr %7, align 4
  br label %116

51:                                               ; preds = %45
  br label %52

52:                                               ; preds = %51
  br label %53

53:                                               ; preds = %52
  br label %54

54:                                               ; preds = %53
  %55 = load ptr, ptr %6, align 8, !tbaa !5
  %56 = icmp ne ptr %55, null
  br i1 %56, label %91, label %57

57:                                               ; preds = %54
  br label %58

58:                                               ; preds = %57
  br label %59

59:                                               ; preds = %58
  %60 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %61 = getelementptr inbounds %struct.s2n_debug_info, ptr %60, i32 0, i32 0
  store ptr @.str.1, ptr %61, align 8, !tbaa !9
  %62 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %63 = getelementptr inbounds %struct.s2n_debug_info, ptr %62, i32 0, i32 0
  %64 = load ptr, ptr %63, align 8, !tbaa !9
  %65 = getelementptr inbounds i8, ptr %64, i64 21
  %66 = call ptr @strrchr(ptr noundef %65, i32 noundef 47) #5
  %67 = icmp ne ptr %66, null
  br i1 %67, label %68, label %75

68:                                               ; preds = %59
  %69 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %70 = getelementptr inbounds %struct.s2n_debug_info, ptr %69, i32 0, i32 0
  %71 = load ptr, ptr %70, align 8, !tbaa !9
  %72 = getelementptr inbounds i8, ptr %71, i64 21
  %73 = call ptr @strrchr(ptr noundef %72, i32 noundef 47) #5
  %74 = getelementptr inbounds i8, ptr %73, i64 1
  br label %80

75:                                               ; preds = %59
  %76 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %77 = getelementptr inbounds %struct.s2n_debug_info, ptr %76, i32 0, i32 0
  %78 = load ptr, ptr %77, align 8, !tbaa !9
  %79 = getelementptr inbounds i8, ptr %78, i64 21
  br label %80

80:                                               ; preds = %75, %68
  %81 = phi ptr [ %74, %68 ], [ %79, %75 ]
  %82 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  %83 = getelementptr inbounds %struct.s2n_debug_info, ptr %82, i32 0, i32 1
  store ptr %81, ptr %83, align 8, !tbaa !11
  %84 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %84, align 4, !tbaa !12
  %85 = call i32 @s2n_calculate_stacktrace()
  br label %86

86:                                               ; preds = %80
  br label %87

87:                                               ; preds = %86
  %88 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  store i32 -1, ptr %88, align 4, !tbaa !14
  store i32 1, ptr %7, align 4
  br label %116

89:                                               ; No predecessors!
  br label %90

90:                                               ; preds = %89
  br label %91

91:                                               ; preds = %90, %54
  br label %92

92:                                               ; preds = %91
  br label %93

93:                                               ; preds = %92
  %94 = load ptr, ptr %6, align 8, !tbaa !5
  %95 = getelementptr inbounds %struct.s2n_security_policy, ptr %94, i32 0, i32 0
  %96 = load i8, ptr %95, align 8, !tbaa !16
  %97 = load ptr, ptr %5, align 8, !tbaa !5
  store i8 %96, ptr %97, align 1, !tbaa !19
  %98 = load ptr, ptr %4, align 8, !tbaa !5
  %99 = call zeroext i1 @s2n_connection_is_quic_enabled(ptr noundef %98)
  br i1 %99, label %100, label %114

100:                                              ; preds = %93
  %101 = load ptr, ptr %5, align 8, !tbaa !5
  %102 = load i8, ptr %101, align 1, !tbaa !19
  %103 = zext i8 %102 to i32
  %104 = icmp sgt i32 %103, 34
  br i1 %104, label %105, label %109

105:                                              ; preds = %100
  %106 = load ptr, ptr %5, align 8, !tbaa !5
  %107 = load i8, ptr %106, align 1, !tbaa !19
  %108 = zext i8 %107 to i32
  br label %110

109:                                              ; preds = %100
  br label %110

110:                                              ; preds = %109, %105
  %111 = phi i32 [ %108, %105 ], [ 34, %109 ]
  %112 = trunc i32 %111 to i8
  %113 = load ptr, ptr %5, align 8, !tbaa !5
  store i8 %112, ptr %113, align 1, !tbaa !19
  br label %114

114:                                              ; preds = %110, %93
  %115 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  store i32 0, ptr %115, align 4, !tbaa !14
  store i32 1, ptr %7, align 4
  br label %116

116:                                              ; preds = %114, %87, %49
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %117

117:                                              ; preds = %116, %40
  %118 = getelementptr inbounds %struct.s2n_result, ptr %3, i32 0, i32 0
  %119 = load i32, ptr %118, align 4
  ret i32 %119
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

; Function Attrs: nounwind willreturn memory(read)
declare ptr @strrchr(ptr noundef, i32 noundef) #2

declare i32 @s2n_calculate_stacktrace() #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

declare i32 @s2n_connection_get_security_policy(ptr noundef, ptr noundef) #3

declare zeroext i1 @s2n_connection_is_quic_enabled(ptr noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4

attributes #0 = { 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { nounwind willreturn memory(read) "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 #3 = { "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 #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind willreturn memory(read) }
attributes #6 = { 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/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"s2n_debug_info", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!15, !13, i64 0}
!15 = !{!"", !13, i64 0}
!16 = !{!17, !7, i64 0}
!17 = !{!"s2n_security_policy", !7, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !18, i64 56, !7, i64 57}
!18 = !{!"_Bool", !7, i64 0}
!19 = !{!7, !7, i64 0}


; 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"

%struct.s2n_debug_info = type { ptr, ptr }

@.str = external hidden unnamed_addr constant [109 x i8], align 1
@_s2n_debug_info = external thread_local local_unnamed_addr global %struct.s2n_debug_info, align 8
@s2n_errno = external thread_local local_unnamed_addr global i32, align 4
@.str.1 = external hidden unnamed_addr constant [109 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_connection_get_minimum_supported_version(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = alloca ptr, align 8
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %4, label %12

4:                                                ; preds = %2
  %5 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str, ptr %5, align 8, !tbaa !5
  %6 = tail call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str, i64 21), i32 noundef 47) #6
  %.not11 = icmp eq ptr %6, null
  %7 = getelementptr inbounds i8, ptr %6, i64 1
  %8 = select i1 %.not11, ptr getelementptr inbounds (i8, ptr @.str, i64 21), ptr %7
  %9 = getelementptr inbounds i8, ptr %5, i64 8
  store ptr %8, ptr %9, align 8, !tbaa !10
  %10 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %10, align 4, !tbaa !11
  %11 = tail call i32 @s2n_calculate_stacktrace() #7
  br label %31

12:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #7
  store ptr null, ptr %3, align 8, !tbaa !13
  %13 = call i32 @s2n_connection_get_security_policy(ptr noundef %0, ptr noundef nonnull %3) #7
  %14 = icmp sgt i32 %13, -1
  br i1 %14, label %15, label %30

15:                                               ; preds = %12
  %16 = load ptr, ptr %3, align 8, !tbaa !13
  %.not12 = icmp eq ptr %16, null
  br i1 %.not12, label %17, label %25

17:                                               ; preds = %15
  %18 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_s2n_debug_info)
  store ptr @.str.1, ptr %18, align 8, !tbaa !5
  %19 = call ptr @strrchr(ptr noundef nonnull dereferenceable(1) getelementptr inbounds (i8, ptr @.str.1, i64 21), i32 noundef 47) #6
  %.not13 = icmp eq ptr %19, null
  %20 = getelementptr inbounds i8, ptr %19, i64 1
  %21 = select i1 %.not13, ptr getelementptr inbounds (i8, ptr @.str.1, i64 21), ptr %20
  %22 = getelementptr inbounds i8, ptr %18, i64 8
  store ptr %21, ptr %22, align 8, !tbaa !10
  %23 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @s2n_errno)
  store i32 402653193, ptr %23, align 4, !tbaa !11
  %24 = call i32 @s2n_calculate_stacktrace() #7
  br label %30

25:                                               ; preds = %15
  %26 = load i8, ptr %16, align 8, !tbaa !14
  store i8 %26, ptr %1, align 1, !tbaa !17
  %27 = call zeroext i1 @s2n_connection_is_quic_enabled(ptr noundef %0) #7
  br i1 %27, label %28, label %30

28:                                               ; preds = %25
  %29 = load i8, ptr %1, align 1, !tbaa !17
  %spec.select = call i8 @llvm.umax.i8(i8 %29, i8 34)
  store i8 %spec.select, ptr %1, align 1, !tbaa !17
  br label %30

30:                                               ; preds = %25, %28, %12, %17
  %.sroa.0.0 = phi i32 [ -1, %17 ], [ -1, %12 ], [ 0, %28 ], [ 0, %25 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #7
  br label %31

31:                                               ; preds = %30, %4
  %.sroa.0.1 = phi i32 [ %.sroa.0.0, %30 ], [ -1, %4 ]
  ret i32 %.sroa.0.1
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare ptr @strrchr(ptr noundef, i32 noundef) local_unnamed_addr #2

declare i32 @s2n_calculate_stacktrace() local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

declare i32 @s2n_connection_get_security_policy(ptr noundef, ptr noundef) local_unnamed_addr #3

declare zeroext i1 @s2n_connection_is_quic_enabled(ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i8 @llvm.umax.i8(i8, i8) #5

attributes #0 = { 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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 #3 = { "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 #4 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #6 = { nounwind willreturn memory(read) }
attributes #7 = { 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 0}
!6 = !{!"s2n_debug_info", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 8}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !8, i64 0}
!13 = !{!7, !7, i64 0}
!14 = !{!15, !8, i64 0}
!15 = !{!"s2n_security_policy", !8, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !16, i64 56, !8, i64 57}
!16 = !{!"_Bool", !8, i64 0}
!17 = !{!8, !8, i64 0}


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